Check Valves Valve locator

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2 Check Valves Valve locator Functional Symbol Flow Typical Model Cavity Rating Pressure Page Check valve, direct L/min (USgpm) bar (psi) FPR/4 Inline () 5 (5) - FPR/8 Inline (8) 5 (5) - FPR/ Inline 45 () 5 (5) - FPR/4 Inline 85 () (4) - FPR Inline 4 (7) 5 (6) - FPR/4 Inline (58) 5 (6) - FPR/ Inline (8) () - CA A879 4 () 5 (5) - CV-4 C () 5 (5) - CV-8 C-8- (8) 5 (5) - CV- C-- 76 () () -4 CV- C-- 76 () 5 (5) -4 CV- C-- (u) 4 () 5 (5) -6 CV-6 C-6-5 (4) () -7 CV-6 C-6-5 (4) 5 (5) -7 CV- C-- 7 (6) () -8 CA C-- (8) 5 (5) -9 Flow Typical Model Cavity Rating Pressure Page Check valve, direct L/min (USgpm) bar (psi) CV6- C-- 76 () 5 (5) -5 Flow Typical Model Cavity Rating Pressure Page Check valve, with bypass orifice L/min (USgpm) bar (psi) CV6- C-- 76 () 5 (5) - CV6-6 C-6-5 (4) () - Flow Typical Model Cavity Rating Pressure Page Check valve, pilot-to-open L/min (USgpm) bar (psi) SPC-8 C-8-9 (5) 4 (5) - SPC- C-- (6) 4 (5) - -.A EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5

3 Check Valves (cont.) Valve locator Functional Symbol Flow Typical Model Cavity Rating Pressure Page Check valve, pilot-to-open L/min (USgpm) bar (psi) 4CK A66 (8) 5 (5) -4 4CK9 A6 9 (4) 5 (5) -5 4CKD9 A6 9 (4) 4 (6) -6 4CK A877 () 5 (5) -7 4CK A695 (8) 5 (5) -8 4SK A9-TA (8) 5 (5) - 4SK9 A9-TA 9 (4) 5 (5) - 4SK4 A94-T7A 4 (7) 5 (5) - 4KD5 Inline 5 (6) 7 () -5 Flow Typical Model Cavity Rating Pressure Page Dual pilot checks L/min (USgpm) bar (psi) DPC-8 C (5) 4 (5) - 4 Flow Typical Model Cavity Rating Pressure Page Dual pilot checks with thermal relief L/min (USgpm) bar (psi) 4CKKT5 A744 5 (6.6) (45) -4 4 Flow Typical Model Cavity Rating Pressure Page Check valve, pilot-to-close L/min (USgpm) bar (psi) 5CK A66 (8) 5 (5) -6 5CK A877 () 5 (5) -7 5CK A695 5 (65) 5 (5) -8 Flow Typical Model Cavity Rating Pressure Page Shuttle L/min (USgpm) bar (psi) SH A697 (5) 5 (5) -9 SH6 C-I-M8-5 () 5 (5) -9 DSV- C-- (6) () -4 DSV-4 C-4- (.75) 4 (5) -4 DSV-8 C-8- (6) 4 (5) -4 DSV-XX-B Inline 7 (45) 5 (5) -4 EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5 -.A

4 Check Valves Section Overview This section gives basic specifications for the full line of Eaton screw-in cartridge check valves. Its purpose is to provide a quick, convenient reference tool when choosing Vickers cartridge valves or designing a system using these components. Eaton's Integrated Hydraulics range of direct and pilot operated check valves provides the hydraulic circuit designer with a wide selection of cartridge and in-line products. Two pressure ratings are shown for all products featured in this catalog. The typical application pressure rating is the maximum recommended operating pressure for the valve in a given system. The fatigue pressure rating is the pressure for the valve to be free for infinite life from metal fatigue. All poppet type check valve cartridges have hardened and ground poppets and sharpedged ground steel seats. This provides an excellent product that is dirt-tolerant, has reliable seating, and is suitable for fast cycling with long life. Direct Operated Check Valves Cartridges fit into industry standard cavities and may be supplied for installation in manifolds, or be provided in standard housings having SAE or BSPP ports suitable for in-line mounting. A wide selection of cracking pressures is available from, to,7 bar ( to psi). Thus the opportunity exists to use the valves not only as conventional check but also as low pressure relief valves. Pilot Operated Check Valves These valves are used for: Position load locking As an alternative to counterbalance valves where neither the overrunning loads or release speed are factors in the application. The high pressure 4CK** series pilot-to-open check valves complement the CE series counterbalance cartridges and are physically interchangeable with them. The 4CK**s provide a low cost Alternative to load control when the dynamics of neither overrunning loads nor load release speed are factors to be considered in the design of the hydraulic circuit for the load to be controlled. The pilot-to-open valves positively lock a load from port to port until pilot pressure applied to port is sufficient to unseat the valve. This then permits flow from port to port. The 4CK** covers flow up to L/min (8USgpm). These POC valves are suitable for use in a broad range of load control applications with typical system operating pressures up to 5 bar (5 psi). Features And Benefits Products in this catalog have been fatigue tested for one million cycles at % of rated pressure. Simple load holding device. Low cost alternative to more complex solutions when overrunning loads are not present and / or control of load release speed is not required. Provides high operational efficiency and low spring settings. Valves are offered with a wide variety of standard housings with SAE and BSPP port options in the following configurations: In-line single In-line dual SAE, 4-bolt, code 6 Close coupled, nipple mounted asket mounted single asket mounted dual The Eaton range of direct and pilot operated check valves provides the hydraulic circuit designer with a wide selection of cartridge and in-line products. Unique design provides compact package and low pressure drops that match or exceed current market expectations and provide for excellent repeatability and stability : pilot ratio satisfies simple load holding application requirements, while providing smooth operation and longer operating life. Single Pilot Check Also offered are SPC-8 and SPC- single pilot check valves with pressures to 4 bar (5 psi) and flows to L/min (6 USgpm). These valves operate similar to the 4CK** Series product but offer an opposite flow path which offers the designer a choice of pilot operated check valve when laying out a custom manifold for ease of design and fit the C- cavity Supporting Products Integrated Hydraulics screw in cartridge valves are available in a wide range of mounting configurations and porting options to provide flexibility in developing circuits. Housings are available in either aluminum bar ( psi) or steel 5 bar (5 psi) configurations. All are available with a choice of BSPP (ISO 8/) or SAE style ports. -4.A EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5

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6 FPR - Check Valve uided Poppet Line Mounted Up to L/min (8 USgpm) 5 bar (5 psi) Sectional View Operation These are in line check valves. Free flow is allowed from port to port when the inlet pressure rises higher than the crack pressure. Flow is prevented between port and port by the poppet resting on the seat within the body. Features All steel construction with hardened and precision ground poppet gives excellent flow capability and shut-off characteristics with good tolerance to particle (dirt) contaminated fluid. Inlet () Performance Data Outlet () Description A range of line mounted valves for convenient installation into hydraulic circuits. Valves allow flow at a low pressure drop (from.5 bar, 7 psi) in the free flow direction and prevent flow in the reverse direction. The range extends from /4 BSP to / BSP ( liters/min US PM to min/min, 8 US PM) nominal flow with cracking pressures from.5 to 5 bar (7 to 7.5 psi). Ratings and Specifications Figures based on: Oil Temp = 4 C Viscosity = cst (5 SUS) Rated flow L/min (8 USgpm) Valve material Working parts hardened and ground steel. External surfaces zinc plated. Mounting position Line mounted Weight FPR /4. kg (.4 lbs) FPR.89 kg (.95 lbs) FPR /8.9 kg (.4 lbs) FPR /4.75 kg (.85 lbs) FPR /.5 kg (.55 lbs) FPR /. kg (4.6 lbs) FPR /4.5 kg (. lbs) Recommended Filtration level BS554/4 Class 8/ (5 micron nominal) Operating Temp - C to +9 C (- C to +94 F) Nominal Viscosity Range 5 to 5 cst Pressure Drop FPR /4" Flow - L/min FPR /8" Flow - L/min bar 7 5 bar bar bar bar.5 bar Flow - US gpm Flow - US gpm Pressure - psi FPR /" Flow - L/min FPR /4" bar Pressure - psi 8 4 bar.5 bar Flow - US gpm Pressure - bar Pressure - bar Pressure - psi Pressure - psi Flow - L/min bar bar.5 bar Flow - US gpm Pressure - bar Pressure - bar -.A EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5

7 FPR - Check Valve uided Poppet Line Mounted Up to L/min (8 USgpm) 5 bar (5 psi) Model Code FPR **.5 Basic Code Cracking Pressure FPR/4 - Inline valve bar (standard) FPR/8 - Inline valve. -. bar FPR/ - Inline valve (FPR/4, /8, /, /4 Only) FPR/4 - Inline valve bar FPR - Inline valve bar FPR/4 - Inline valve. -. bar FPR/ - Inline valve Pressure Drop FPR " Pressure - psi Flow - L/min bar bar.5 bar 6 9 Flow - US gpm Pressure - bar FPR /4" Flow - L/min bar Pressure - psi 9. bar bar Flow - US gpm Pressure - bar FPR /" Flow - L/min bar bar bar Flow - US gpm Pressure - psi Pressure - bar A B C Basic Code Flow Rate Pressure A B C FPR /4 L/min ( USgpm) 5 bar (5 psi) 6 9 /4" BSP FPR /8 L/min (8 USgpm) 5 bar (5 psi) 68 4 /8" BSP FPR / 45 L/min ( USgpm) 5 bar (5 psi) 78 7 /" BSP FPR /4 85 L/min ( USgpm) bar (4 psi) 88 6 /4" BSP FPR 4 L/min (7 USgpm) 5 bar (6 psi) 46 " BSP FPR /4 L/min (58 USgpm) 5 bar (6 psi) 4 55 /4" BSP FPR / L/min (8 USgpm) bar ( psi) 55 6 /" BSP EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5 -.A

8 CA - Check Valve Direct acting, ball type 4 L/min ( USgpm) 5 bar (5 psi) Sectional View Operation The valve remains closed until the spring bias is reached at port at which time the poppet lifts of the seat and allows flow from port to port. in the other direction the valve is closed. Features Cartridge design with machined seats and precision ground balls gives excellent flow reseat characteristics. Installation into the -port 7/8" UNF cavity gives easy fitment and serviceability. Performance Data Outlet () Inlet () Description These cartridge check valves allow flow at a low pressure drop, with cracking pressure from.5 to 7 bar (7 to psi) in the free flow direction and close to prevent flow in the reverse direction. They fit into simply machined cavities and are therefore ideal for installation into custom designed Hydraulic Integrated Circuits, manifold blocks and other hydraulic equipment. Ratings and Specifications Figures based on oil temperature of 4 C and viscosity of cst (5 SUS) Rated flow 4 L/min ( USgpm Maximum pressure 5 bar (5 psi) Cracking pressures.5 bar (7 psi).5 bar ( psi).5 bar (5 psi) 7. bar ( psi) Cartridge material All steel construction. External parts electroless zinc plated. Standard housing material Standard aluminum (up to bar). Add suffix "77" for steel option. Mounting position Unrestricted Cavity number A879 (See Section M) Torque cartridge into cavity 45 Nm ( lbs. ft.) Weight.5 kg (. lbs.) Seal kit number SK96 (Nitrile), SK96V (Viton ) Recommended filtration level BS554/4 Class 8/ (5 micron nominal) Operating temperature - C to +9 C (- C to +94 F) Leakage. ml/min nominal Nominal viscosity range 5 to 5 cst Viton is a registered trademark of E. I. DuPont Pressure Drop Curves Flow - L/min Pressure - psi bar 5 5 Pressure - bar Flow - US gpm -.A EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5

9 CA - Check Valve Direct acting, ball type 4 L/min ( USgpm) 5 bar (5 psi) Model Code CA** W.5 S 4 Basic Code CA - Cartridge only CA5 - Cartridge and body Port Size Code Port Size Housing Number - Body Only Aluminium Steel W /4" BSP A485 W /8" BSP A4 A475 6T /8" SAE A5676 A484 Cracking Pressure bar (7 psi) bar ( psi) bar (5 psi) bar ( psi) 4 Seals S - Nitrile (For use with most industrial hydraulic oils) SV - Viton (for high temperature and most special fluid applications) Dimensions mm (inch) Cartridge Only Basic Code CA Single Valve /4", /8" Ports Basic Code CA5 6.5 (.6) max. A/F. (.) 6. (.6) 5. (.97) 44. (.7) /4-6 UNF-A holes Ø6.8 (.7) thro.7 (.5) 8.8 (.) 5.9 (.6).8 (.5) 8. (.) Outlet () 44.8 (.76) 5.8 (.) Note: For applications above please consult our technical department or use the steel body option. Inlet () EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5 -.A

10 CV-4 - Check Valve Direct acting, Poppet Type 7.6 L/min ( USgpm) 5 bar (5 psi) Operation The valve remains closed until the spring bias is reached at port at which time the poppet lifts of the seat and allows flow from port to port. in the other direction the valve is closed. Features Compact screw in cartridge design. Hardened and ground working parts to limit leakage and extend service life. Sectional View Performance Data Descriptions This is a compact Poppet Type check valve ideal for use in manifolds for load sense or low flow applications. Ratings and Specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) Cartridge fatigue pressure (infinite life) Rated flow Free flow cracking L/min (.5 USgpm) Internal leakage, port to 5 bar (5 psi) 5 bar (5 psi) 7.6 L/min ( USgpm) bar (5 psi) 6-4. bar (6 psi) 5 drops/min bar ( psi) Temperature range 4 to C ( 4 to 48 F) Cavity Fluids C-4- All general purpose hydraulic fluids such as MIL -H-566, SAE, SAE, etc. Filtration Cleanliness code 8/6/ Weight: cartridge only Seal kit Viton is a registered trademark of E. I. DuPont.4 kg (.9 lbs.) (Buna-N) (Viton ) Pressure Drop 4 CV-4-P--5 5 CV-4-P--6 Pressure Drop - psi Pressure Drop - psi Flow USgpm (5 SUS F) Flow USgpm (5 SUS F) -.A.B EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5

11 CV-4 - Check Valve Direct acting, Poppet Type 7.6 L/min ( USgpm) 5 bar (5 psi) Model Code CV 4 (V) P *** ** Function CV - Check valve Size 4-4 size Seal Material Blank - Buna-N V - Viton 4 Style P - Poppet Type 5 Port Size - Cartridge only 6 Free Flow Cracking Pressure 5 -,4 bar (5 psi) 6-4. bar (6 psi) 7 Special Features - None (Only required if valve has special features, omitted if "") Dimensions mm (inch) Cartridge Only Basic Code CV-4 9/6" HEX (.5) 7/6 - UNF - A. (.879) Ø 8,64 (.4) Note: Torque cartridge in aluminum or steel housing to Nm (6- ft. lbs). WARNIN Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5 -.A.B

12 CV-8 - Check Valve Direct acting, poppet type L/min (8 USgpm) 5 bar (5 psi) Operation The valve remains closed until the spring bias is reached at port at which time the poppet lifts of the seat and allows flow from port to port. in the other direction the valve is closed. Features Compact screw in cartridge design. Hardened steel ball to limit leakage and extend service life. Sectional View Performance Data Description This is a compact poppet type check valve ideal for use in manifolds for load sense or low flow applications. Ratings and Specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) 5 bar (5 psi) Cartridge fatigue pressure (infinite life) 8 bar (4 psi) Rated flow L/min (8 USgpm) Cracking L/min (.5 USgpm) bar (4 psi) -.7 bar ( psi) 5 -. bar (5 psi) bar (5 psi) -.7 bar ( psi) 6-4. bar (6 psi) Internal leakage 5 drops/min. 5 bar (5 psi) Temperature range 4 to C ( 4 to 48 F) Cavity C-8- Fluids All general purpose hydraulic fluids such as: MIL - H-566, SAE, SAE, etc. Filtration Cleanliness code 8/6/ Standard housing materials Aluminum or steel Weight: cartridge only.4 kg (.9 lbs.) Seal kit (Buna-N) (Viton ) Viton is a registered trademark of E.I. DuPont Pressure Drop 5 Flow - L/min (,8 cst 49 C) 4 Pressure Drop - psi A B C D Pressure Drop - bar Flow - USgpm (5 SUS F) A CV-8-P-O-6 B CV-8-P-O-5 C CV-8-P-O- D CV-8-P-O-4 -.A.B EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5

13 CV-8 - Check Valve Direct acting, poppet type L/min (8 USgpm) 5 bar (5 psi) Model Code CV 8 (V) P (*) ** *** Function CV - Check valve Size 8-8 size Seal Material Blank - Buna-N V - Viton 4 Style P - Poppet 5 Valve Housing Material Omit for cartridge only A - Aluminum S - Steel 6 Port Size Code Port Size Housing Number Aluminum Steel Fatigue rated Fatigue rated Cartridge only 4T SAE T SAE T SAE /4 BSPP /8 BSPP See section J for housing details. 7 Cracking Pressure bar (4 psi) -.7 bar ( psi) 5 -. bar (5 psi) bar ( psi) -.7 bar ( psi) 6-4. bar (6 psi) 8 Special features - None (Only required if valve has special features, omitted if "") SS - 6 Stainless Steel external components Dimensions mm (inch) Cartridge Only Basic Code CV-8, (.87) hex 8,6 (.4) Installation Drawing (Steel) 9. (.6) 5.5 (.6).75" 6 Thd. 7,8 (.9) 8. (.5) 5.8 (.).4 (.) 44. (.7) 5.8 (.) X 7. (.8) 9. (.75) Ø,6 (.497) Note: Torque cartridge in aluminum or steel housing to 4-4 Nm (5- ft. lbs). WARNIN Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5 -.A

14 CV-/CV- - Check Valve Direct acting, poppet type Up to 76 L/min ( USgpm) 5 bar (5 psi) Operation The valve remains closed until the spring bias is reached at port at which time the poppet lifts of the seat and allows flow from port to port. in the other direction the valve is closed. Features Hardened and ground working parts to limit leakage and extend service life. Sectional View Performance Data Ratings and Specifications Description This is a compact poppet type check valve ideal for use in manifolds for load sense or low flow applications. Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) CV/CV bar ( psi)/5 bar (5 psi) Cartridge fatigue pressure (infinite life) CV/CV bar ( psi)/5 bar (5 psi) Rated flow 76 L/min ( USgpm) Free flow cracking L/min (.5 USgpm) -. bar ( psi) -.69 bar ( psi) -.8 bar ( psi) bar (5 psi) bar (4 psi) bar (65 psi) bar ( psi) bar (8 psi) bar ( psi) Internal leakage, Port to 5 drops/min. 5 bar (5 psi) Temperature range 4 to C ( 4 to 48 F) Cavity C-- Fluids All general purpose hydraulic fluids such as MIL - H-566, SAE, SAE, etc. Filtration Cleanliness code 8/6/ Standard housing material Aluminum or steel Weight: cartridge only.8 kg (.7 lbs.) Seal kit 5658 (Buna-N) (Viton ) Viton is a registered trademark of E.I. DuPont Pressure Drop Flow - L/min (,8 cst 49 C) Pressure Drop - psi A B C 5 5 Pressure Drop - bar Flow - USgpm (5 SUS F) A CV(*) *P B CV(*) *P 4 C CV(*) *P -4.A EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5

15 CV-/CV- - Check Valve Direct acting, poppet type Up to 76 L/min ( USgpm) 5 bar (5 psi) Model Code CV(*) * P * ** *** Function CV - Check valve bar ( psi) CV - Check valve 5 bar (5 psi) Size - size Seal Material N - Buna-N V - Viton 4 Style P - Poppet 6 Port Size Code Port Size Housing Number Aluminum Aluminum Steel Light Duty Fatigue Rated Fatigue Rated Cartridge only B /8 BSPP T SAE T SAE 8-75 /4 BSPP /8 BSPP H SAE H SAE See section J for housing details. 5 Valve Housing Material - None A - Aluminum S - Steel 7 Free Flow Cracking Pressure -. bar ( psi) (anticavitation) -.69 bar ( psi) (anticavitation) -,8 bar ( psi) 5 -,4 bar (5 psi) 4 -,76 bar (4 psi) 65-4,48 bar (65 psi) - 6,9 bar ( psi) 8 -,4 bar (8 psi) bar ( psi) 8 Special Features - None (Only required if valve has special features, omitted if "") SS - 6 Stainless Steel external components Dimensions mm (inch) Cartridge Only Basic Code CV- 5,4 (.) hex.875" 4 Thd. Torque cartridge in aluminum housing Nm (5-4 lbf ft).torque cartridge in steel housing 68-7 Nm (5-55 lbf ft) A Nm (5-4 lbf. ft.) 8, (.) S Nm (5-55 lbf ft.) Installation Drawing (Steel) 6.5 (.5) 8. (.) 5.8 (.) X Ø 7.4 (.8) 9 (.75),7 (.5) Ø 5,8 (.6) (.7) (.75) (.87) (.75) (.5) WARNIN Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5-4.A.B

16 CV6- - Check Valve Direct acting, poppet types, side in, nose out 76 L/min ( USgpm) 5 bar (5 psi) Operation The valve remains closed until the spring bias is reached at port at which time the poppet lifts of the seat and allows flow from port to port. in the other direction the valve is closed. Features Hardened and ground working parts to limit leakage and extend service life. Robust design with a 5 bar max pressure rating. Sectional View Performance Data Ratings and Specifications Description This is a poppet type screwin cartridge valve allowing free flow from port to. This gives flexibility to the manifold designer allowing the production of the most compact solution Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) 5 bar (5 psi) Cartridge fatigue pressure (infinite life) bar (45 psi) Rated flow 76 L/min ( USgpm) Free flow cracking L/min (.5 USgpm) bar (5 psi) 5 -. bar (5 psi) bar (5 psi) bar (5 psi) Internal leakage, Port to 5 drops/min. 5 bar (5 psi) Temperature range 4 to C ( 4 to 48 F) Cavity C-- Fluids All general purpose hydraulic fluids such as MIL - H-566, SAE, SAE, etc. Filtration Cleanliness code 8/6/ Standard housing materials Aluminum or steel Weight, cartridge only.8 kg (.7 lbs.) Seal kit 5658 (Buna-N) (Viton ) Viton is a registered trademark of E.I. DuPont Pressure Drop Flow - L/min (,8 cst 49 C) Pressure Drop - psi A B C 6 Pressure Drop - bar D Flow - USgpm (5 SUS F) A CV6--P-O-5 B CV6--P-O-5 C CV6--P-O-5 D CV6--P-O-5-5.A EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5

17 CV6- - Check Valve Direct acting, poppet types, side in, nose out 76 L/min ( USgpm) 5 bar (5 psi) Model Code CV6 (*) P (*) ** *** Function CV6 - Check valve Size - size Seal Material Blank - Buna-N V - Viton 4 Style P - Poppet 5 Valve Housing Material Omit for cartridge only A - Aluminum S - Steel 6 Port Size Code Port Size Housing Number Aluminum Aluminum Steel Light Duty Fatigue Rated Fatigue Rated Cartridge only B /8" BSPP T SAE T SAE 8-75 /4 BSPP /8 BSPP H SAE H SAE See section J for housing details. 7 Free Flow Cracking Pressure bar (5 psi) (Anti-cavitation) 5 -. bar (5 psi) bar (5 psi) bar (5 psi) 8 Special Features - None (Only required if valve has special features, omitted if "") SS - 6 Stainless Steel external components Dimensions mm (inch) Note: Torque cartridge in aluminum housing Nm (5-4 ft. lbs). Torque cartridge in steel housing 68-7 Nm (5-55 ft. lbs). Cartridge Only Basic Code CV- 5,4 (.) hex.875" 4 Thd. 8, (.) Installation Drawing (Steel) 6.5 (.5) 8. (.) 5.8 (.) X Ø 7.4 (.8) 9 (.75),7 (.5) (.7) (.75) (.87) (.75) (.5) Ø 5,8 (.6) WARNIN The cavity should be machined to 4,9 (.56) maximum diameter and 6, (.47) maximum depth (see cavity detail, page M-) WARNIN Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5-5.A

18 CV- - Check Valve Direct acting, poppet type 4 L/min ( USgpm) 5 bar (5 psi) Operation The valve remains closed until the spring bias is reached at port at which time the poppet lifts of the seat and allows flow from port to port. in the other direction the valve is closed. Pilot Operation Hardened and ground working parts to limit leakage and extend service life. Robust design with a 5 bar max pressure rating. Sectional View Performance Data Ratings and Specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) 5 bar (5 psi) Cartridge fatigue pressure (infinite life) 5 bar (5 psi) Rated flow 4 L/min ( USgpm) Free flow cracking L/min (.5 USgpm) bar (.5 psi) bar (5 psi) bar ( psi). -.8 bar ( psi) 4. -,76 bar (4 psi) ,5 bar (8 psi) 6. -, bar (6 psi) Internal leakage, Port to 5 drops/min. 5 bar (5 psi) Hysteresis Less than,5 bar (5 psi) Temperature range 4 to C ( 4 to 48 F) Cavity C-- or C--U Fluids All general purpose hydraulic fluids such as MIL - H-566, SAE, SAE, etc. Filtration Cleanliness code 8/6/ Standard housing materials Aluminum or steel Weight, cartridge only,4 kg (.54 lbs.) Seal kit (Buna-N) (Viton ) Viton is a registered trademark of E.I. DuPont Description This is a poppet type, direct acting screw-in cartridge check valve allowing free flow from port to. Pressure Drop Pressure Drop - psi Flow - L/min (,8 cst 49 C) A 8 B 6 4 C Flow - USgpm (5 SUS F) Pressure Drop - bar A CV--P-O-8 B CV--P-O- C CV--P-O-.5-6.A EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5

19 CV- - Check Valve Direct acting, poppet type 4 L/min ( USgpm) 5 bar (5 psi) Model Code CV (V) P (*) *** (U) ** Function CV - Check valve Size - size Seal Material Blank - Buna-N V - Viton 4 Style P - Poppet 5 Valve Housing Material Omit for cartridge only A - Aluminum S - Steel 6 Port size Code Port Size Housing Number C--U C-- C--U C-- Aluminum Aluminum Steel Steel Light Duty Fatigue Rated Fatigue Rated Fatigued Rated Cartridge only T SAE T SAE /" BSPP /4 BSPP See section J for housing details. 7 Cavity Blank - Cavity without undercut U - Cavity with undercut 8 Cracking Pressure.5 -,7 bar (.55 psi) 5. -,5 bar 5 psi) -,69 bar ( psi) -,8 bar ( psi) 4 -,75 bar (4 psi) 8-5,5 bar (8 psi) 6 -, bar (6 psi) 9 Special Features - None (Only required if valve has special features, omitted if "") Dimensions mm (inch) Torque cartridge in housing A Nm (6-7 ft. lbs). S - -5 Nm (75-85 ft. lbs). Cartridge Only Basic Code CV,6 (.5) hex Installation Drawing (Steel).7 (.5) 8.9 (.74) 8.7 (.).6" Thd. 8,9 (.75) (.5) (.5) X Ø. (.46) 44,7 (.76).7 (.5) 88.9 (.5) 6.5 (.5) 5.4 (.) 5.8 (.) Ø,75 (.95) WARNIN Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5-6.A

20 CV-6/CV-6 - Check Valve Direct acting, poppet type 5 L/min (4 USgpm) 5 bar (5 psi) Operation The valve remains closed until the spring bias is reached at port at which time the poppet lifts of the seat and allows flow from port to port. In the other direction the valve is closed. Features Hardened and ground working parts to limit leakage and extend service life. Sectional View CV-6 Performance Data Ratings and Specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) CV-6 bar ( psi)/cv 5 bar (5 psi) Cartridge fatigue pressure (infinite life) CV-6 bar ( psi)/cv-6 5 bar (5 psi) Rated flow 5 L/min (4 USgpm) Free flow cracking L/min (.5 USgpm) 5 -,4 bar (5 psi) -,4 bar ( psi) -,7 bar ( psi) 4 -,67 bar (4 psi) 5 -,45 bar (5 psi) - 6,9 bar ( psi) Note: Only the 5 psi option is available for CV-6 Internal leakage, Port to 5 drops/min. bar ( psi) Temperature range 4 to C ( 4 to 48 F) Cavity C-6- Fluids All general purpose hydraulic fluids such as: MIL - H-566, SAE, SAE, etc. Filtration Cleanliness code 8/6/ Standard housing materials Aluminum or steel Weight, cartridge only,6 kg (.58 lbs.) Seal kit 5658 (Buna-N) (Viton ) Viton is a registered trademark of E.I. DuPont Description Pressure Drop This is a poppet type, direct acting screw-in cartridge check valve allowing free flow from port to. Pressure Drop - psi B Flow - L/min (,8 cst 49 C) A Pressure Drop - bar D C 4 Flow - USgpm (5 SUS F) A CV(*)-6-P-O-5 B CV(*)-6-P-O- C CV(*)-6-P-O-5 D CV(*)-6-P-O-5-7.A EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5

21 CV-6/CV-6 - Check Valve Direct acting, poppet type 5 L/min (4 USgpm) 5 bar (5 psi) Model Code CV(*) 6 (V) P *** ** Function CV - Check valve, bar CV - Check valve, 5 bar Size 6-6 size Seal Material Blank - Buna-N V - Viton 4 Style P - Poppet 5 Port Size Code Port Size Housing Number Aluminum Aluminum Steel Light Duty Fatigue Rated Fatigue Rated Cartridge only 6B /4" BSPP T SAE -754 T SAE /" BSPP /4 BSPP H SAE H SAE 566 See section J for housing details. 6 Cracking Pressure 5 -,4 bar (5 psi) (Anti-cavitation) -,4 bar ( psi) -.7 bar ( psi) bar (4 psi) bar (5 psi) bar ( psi) 7 Special Features - None (Only required if valve has special features, omitted if "") SS - 6 Stainless Steel external components Dimensions mm (inch) Torque cartridge in housing A- 8- Nm (8-9 ft lbs) S Nm (- ft lbs) Cartridge Only Basic Code Installation Drawing (Aluminum) CV, CV 8, (.5) hex, (.5).7 (.5) 8.4 (.)." Thd (.5) 6.5 (.5) 44,5 (.75). (.4) 68.8 (.688) 88.9 (.5) X 8.74 (.44).8 (.5) Ø 8,5 (.) WARNIN Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5-7.A.B

22 CV- - Check Valve Direct acting, poppet type 7 L/min (6 USgpm) bar ( psi) Operation This is a poppet type, direct acting screw-in cartridge check valve allowing free flow from port to. Features Hardened and ground working parts to limit leakage and extend service life. Robust design with a bar ( psi) max pressure rating. Sectional View Performance Data Ratings and Specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) bar ( psi) Cartridge fatigue pressure (infinite life) bar ( psi) Rated flow 7 L/min (6 USgpm) Free flow cracking L/min (.5 USgpm) 5 -,4 bar (5 psi) 5 -, bar (5 psi) -,7 bar ( psi) 6-4,4 bar (6 psi) - 6,9 bar ( psi) Internal leakage, Port to 5 drops/min. bar ( psi) Temperature range 4 to C ( 4 to 48 F) Cavity C-- Fluids All general purpose hydraulic fluids such as MIL - H-566, SAE, SAE, etc. Filtration Cleanliness code 8/6/ Standard housing material Aluminum Weight, cartridge only,49 kg (.9 lbs.) Seal kit (Buna-N) (Viton ) Viton is a registered trademark of E.I. DuPont Description This is a poppet type, direct acting screw-in cartridge check valve allowing free flow from port to. Pressure Drop Flow - L/min (,8 cst 49 C) Pressure Drop - psi A 75 B 5 C Pressure Drop - bar Flow - USgpm (5 SUS F) A CV--P-O- B CV--P-O- C CV--P-O-5-8.A EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5

23 CV- - Check Valve Direct acting, poppet type 7 L/min (6 USgpm) bar ( psi) Model Code CV (V) P *** *** Function CV - Check valve Size - size Seal Material Blank - Buna-N V - Viton 4 Style P - Poppet 5 Port Size Code Port Size Housing Number Aluminum Aluminum Light Duty Fatigue Rated Cartridge only 8B " BSPP T SAE /4" BSPP " BSPP H SAE H SAE Free Flow Cracking Pressure 5 -,4 bar (5 psi) Anti-cavitation 5 -, bar (5 psi) -,7 bar ( psi) 6-4,4 bar (6 psi) - 6,9 bar ( psi) 7 Special Features - None (Only required if valve has special features, omitted if "") Dimensions mm (inch) Note: Torque cartridge in aluminum housing 8-55 Nm (95-5 ft lbs) Cartridge Only Basic Code CV Installation Drawing (Aluminum) 47,6 (.87) hex 4, (.55) 4. (.6).65" Thd. 76. (.).6 (4.) X 8.74 (.44) 6. (.4) 57, (.5). (.4) 8. (.9).6 (4.) Ø 6,44 (.45) EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5-8.A

24 CA - Check Valve Direct acting, poppet style L/min (8 USgpm) 5 bar (5 psi) Operation This is a poppet type, direct acting screw-in cartridge check valve allowing free flow from port to. Features Hardened and ground working parts to limit leakage and extend service life. Rhobust design with a 5 bar (5 psi) max pressure rating. Sectional View Performance Data Ratings and Specifications Figures based on: Oil Temp = 4 C Viscosity = cst (5 SUS) Typical application pressure (all ports) Rated flow Free flow cracking pressure Leakage Temperature range 5 bar (5 psi) L/min (8 USgpm). - bar (4.4 psi). - bar (4.5 psi). - bar (9 psi) bar (58 psi) bar ( psi). millilitres/min nominal to 9 C ( to 94 F) Cavity A45 (C--) See Section M) Torque cartridge into cavity 5 Nm ( lbs ft) Filtration BS554/4 Class 8/ (5 micron nominal) Cartridge material All steel construction. External parts electroless zinc plated. Standard housing material Aluminum (up to bar) Add suffix 77 for steel option. Norminal Viscosity Range 5 to 5 cst Weight.48 kg (.6 lbs.) Mounting position Unrestricted Seal kit SK4 (Nitrile) SK4V (Viton ) Viton is a registered trademark of E.I. DuPont Descriptions This is a poppet type, dirct acting screw-in cartridge check valve allowing free flow from port to. Pressure Drop Pressure - psi 5 5 Flow - L/min S S.S.S S Flow - US gpm Pressure - bar -9.A.B EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5

25 CA - Check Valve Direct acting, poppet style L/min (8 USgpm) 5 bar (5 psi) Model Code CA*** W. S Function CA - Cartridge only CA55 - Cartridge and body 4 Port Size - Bodied Valves Only Code Port Size Housing Number Aluminum Steel W /4" BSP C45 C46 T /4" SAE C4 C4 Cracking Pressure. -. bar (4.4 psi). -. bar (4.5 psi). -. bar (9 psi) bar (58 psi) bar ( psi) 4 Seals S - Nitrile (For use with most industrial hydraulic oils) SV - Viton (For high temperature and most special fluid applications) Dimensions mm (inch) Note: For applications above please consult our technical department or use the steel body option. Cartridge Only Basic Code CA 46 A/F Single Valve /4", /" Ports Basic Code CA55 5. (.98). (.6) 76. (.) 5. (.59) 65. (.56).6 (4.) 7.5 (.85). (.9) 4. (.57) 8. (.5).6 (4.) 8. (.5) EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5-9.A

26 CV6- - Check Valve Direct acting, poppet type with orifice 76 L/min ( USgpm) 5 bar (5 psi) Operation Features The poppet remains on its seat until the pressure drop across the orifice overcomes the spring force over the seat area. Full flow will then take place from port to. Flow from port to will be restricted by the orifice. Hardened and ground working parts extend service life. Robust design with a 5 bar (5 psi) max pressure rating. Compact simple solution in a single cartridge. Sectional View Performance Data Ratings and Specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) 5 bar (5 psi) Cartridge fatigue pressure (infinite life) 5 bar (5 psi) Rated flow 76 L/min ( USgpm) Free flow cracking L/min (.5 USgpm) -, bar ( psi) -,69 bar ( psi) -,8 bar ( psi) 5 -,4 bar (5 psi) 4 -,76 bar (4 psi) 65-4,48 bar (65 psi) - 6,9 bar ( psi) 8 -,4 bar (8 psi) - 4,5 bar ( psi) Orifice size range.5 to.5" ( mm) Temperature range 4 to C ( 4 to 48 F) Cavity C-- Fluids All general purpose hydraulic fluids such as MIL - H-566, SAE, SAE, etc. Filtration Cleanliness code 8/6/ Standard housing material Aluminum or steel Weight, cartridge only,49 kg (.9 lbs.) Seal kit (Buna-N) (Viton ) Viton is a registered trademark of E.I. DuPont Description This is a poppet type screw-in cartridge check valve with a by-pass orifice. This will allow free flow into an actuator while restricting the flow out of it Pressure Drop Pressure Drop - psi 5 4 Flow - L/min (,8 cst 49 C) A B C 5 5 Flow - USgpm (5 SUS F) Port to Pressure Drop - bar A CV6 *P B CV6 *P 4 C CV6 *P -.A EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5

27 CV6- - Check Valve Direct acting, poppet type with orifice 76 L/min ( USgpm) 5 bar (5 psi) Model Code CV6 * P * *** *** *** Function CV6 - Check valve with bypass orifice Size - size Seal Material N - Buna-N V - Viton 4 Style P - Poppet 5 Valve Housing Material - No housing A - Aluminum S - Steel 6 Free Flow Cracking Pressure -, bar ( psi) (Anti-cavitation) -,69 bar ( psi) (Anti-cavitation) -,8 bar ( psi) 5 -,4 bar (5 psi) 4 -,76 bar (4 psi) 65-4,48 bar (65 psi) - 6,9 bar ( psi) 8 -,4 bar (8 psi) - 4,5 bar ( psi) 7 Port Size Code Port Size Housing Number Aluminum Aluminum Steel Light Duty Fatigue Rated Fatigue Rated B /8" BSPP T SAE T SAE 8-75 /4" BSPP /8" BSPP H SAE H SAE Orifice Size Specify in thousandths of an inch Ø -.5 max Ø -.5 min 9 Special Features - None (Only required if valve has special features, omitted if "") SS - 6 Stainless Steel external components Dimensions mm (inch) Torque cartridge in housing A Nm (5-4 ft lbs) S Nm (5-55 ft lbs). Cartridge Drawing Basic Code Installation Drawing (Steel) CV6-8, (.) 8. (.) 9 (.75) 5,4 (.) hex 6.5 (.5) 5.8 (.) X Ø 7.4 (.8).875" 4 Thd.,7 (.5) (.7) (.75) (.87) (.75) (.5) Ø 5,8 (.6) EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5 -.A

28 RCV- - Check Valve Restrictive check valve 76 L/min ( USgpm) 5 bar (5 psi) Description The RCV--P is a poppet type, screw-in cartridge check valve with stroke limiter. Functional Symbol Sectional View Operation This valve remains closed until the spring bias is reached at port at which RATINS AND SPECIFICATIONS 47,65 " HEX (.876) Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) 5 bar (5 psi) Cartridge fatigue pressure (infinite life) 5 bar (5 psi) Rated flow 76 L/min ( USgpm).875"-4 Thd. Free flow cracking L/min (.5 USgpm), bar ( psi),7 (.49),69 bar ( psi),8 bar ( psi) 4,76 bar (4 psi) 65 4,48 bar (65 psi) 6,9 bar ( psi) 8,4 bar (8 psi) Ø 5.8 (.6) 4,5 bar ( psi) Internal leakage, Port to 5 drops/min bar ( psi) Temperature range -4 to C (-4 to 48 F) Cavity C 47,65 Fluids " HEX (.876) All general purpose hydraulic fluids such as MIL H 566, SAE, SAE, etc. Filtration Cleanliness code 8/6/ Standard housing materials Aluminum or steel Weight cartridge only, kg (.48 lbs) Seal kit,7 (.49).875"-4 Thd. time the poppet lifts off the seat and allows flow from port to port. The effective orifice in the free flow direction is adjustable Buna N Viton Viton is a registered trademark of E.I. DuPont Pressure Drop Curves Cartridge only Ø 5.8 (.6) 5 Flow - L/min (,8 cst 49 C) A - RCV * P B - RCV * P 4 C - RCV * P Pressure Drop - psi 4 A B C 5 5 Flow - USgpm (5 SUS F) Port to with fully open adjustment Pressure Drop - bar -.A EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5

29 RCV- - Check Valve Restrictive check valve 76 L/min ( USgpm) 5 bar (5 psi) RCV * P * ** *** Function 5 Block material RCV - Check valve with stroke limiter (Restrictive check valve) O - No block A - Aluminum S - Steel Size - Size Seals N - Buna-N V - Viton 4 Style P - Poppet Dimensions mm (inch) 7 Free flow cracking pressure -, bar ( psi) (Anti-cavitation) -,69 bar ( psi) (Anti-cavitation) -,8 bar ( psi) 4 -,76 bar (4 psi) 65-4,48 bar (65 psi) - 6,9 bar ( psi) 8 -,4 bar (8 psi) - 4,5 bar ( psi) 6 Port size - Cartridge only CODE PORT SIZE HOUSIN NUMBER Aluminum Aluminum Steel Light duty Fatigue rated Fatigue rated B /8 BSPP T SAE T SAE 8-75 /4 BSPP /8 BSPP H SAE H SAE See Section J for housing details. 8 Special features - None (Only required if valve has special features - omitted if ) Torque cartridge in housing A Nm (5-4 ft. lbs) S Nm (5-55 ft. lbs) 47,65 (.876) " HEX,7 (.49).875"-4 Thd. Ø 5.8 (.6) Aluminum housings can be used for pressures up to bar ( psi) Steel housings must be used for operating pressures above bar ( psi) EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5 -.A

30 CV6-6 - Check Valve Direct acting, poppet type with orifice 5 L/min (4 USgpm) bar () psi Sectional View Operation The poppet remains on its seat until the pressure drop across the orifice overcomes the spring force over the seat area. Full flow will then take place from port to. Flow from port to will be restricted by the orifice. Features Hardened and ground working parts extend service life. Robust design with a bar ( psi) max pressure rating. Compact simple solution in a single cartridge. Performance Data Ratings and Specifications Description This is a poppet type screw-in cartridge check valve with a by-pass orifice. This will allow free flow into an actuator while restricting the flow out of it. Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) bar ( psi) Cartridge fatigue pressure (infinite life) bar ( psi) Rated flow 5 L/min (4 USgpm) Free flow cracking L/min (.5 USgpm) 5 -, bar ( psi) -,4 bar ( psi) -,7 bar ( psi) bar (4 psi) 5 -,45 bar (5 psi) bar ( psi) Orifice size range.5 to.5" ( mm) Temperature range 4 to C ( 4 to 48 F) Cavity C-6- Fluids All general purpose hydraulic fluids such as MIL - H-566, SAE, SAE, etc. Filtration Cleanliness code 8/6/ Standard housing material Aluminum Weight, cartridge only,6 kg (.58 lbs.) Seal kit 5658 (Buna-N) (Viton ) Viton is a registered trademark of E.I. DuPont Pressure Drop Pressure Drop - psi Flow - L/min (,8 cst 49 C) A B C Pressure Drop - bar 4 Flow - USgpm (5 SUS F) Port to A CV6 6*P 5 C CV6 6*P 5 B CV6 6*P -.A EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5

31 CV6-6 - Check Valve Direct acting, poppet type with orifice 5 L/min (4 USgpm) bar () psi Model Code CV6 6 * P * *** *** *** Function CV6 - Check valve with bypass orifice Size 6-6 size Seal Material N - Buna-N V - Viton 4 Style P - Poppet 5 Valve Housing Material - No housing A - Aluminum 6 Port Size - Cartridge only 7 Free Flow Cracking Pressure 5 -, bar (5 psi) (Anti-cavitation) -,4 bar ( psi) (Anti-cavitation) -,7 bar ( psi) 4 -,76 bar (4 psi) 5 -,45 bar (5 psi) - 6,9 bar ( psi) Code Port Size Housing Number Aluminum Aluminum Light Duty Fatigue Rated 6B /4" BSPP T SAE /" BSPP /4" BSPP H SAE H SAE Orifice Size Specify in thousandths of an inch Ø -.5 max Ø -.5 min 9 Special Features - None (Only required if valve has special features, omitted if "") Dimensions mm (inch) Note: Torque cartridge in aluminum housing 8- Nm (8-9 ft. lbs). Cartridge Drawing Installation Drawing Basic Code CV6-6.7,7 (.5) (.5).5" HEX 8.4 (.)."- Thd. 44,58 (.75) 6.5 (.5) 88.9 (.5). (.4) 68.8 (.688) 88.9 (.5) X 8.74 (.44).8 (.5) Ø 8,5 (.) EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5 -.A

32 RCV- - Check Valve Restrictive Check Valve 76 L/min ( USgpm) 5 bar (5) psi Description The RCV--P is a poppet type, screw-in cartridge check valve with stroke limiter. Functional Symbol Sectional View Operation This valve remains closed until the spring bias is reached at port at which RATINS AND SPECIFICATIONS 47,65 " HEX (.876) Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) 5 bar (5 psi) Cartridge fatigue pressure (infinite life) 5 bar (5 psi) Rated flow 76 L/min ( USgpm).875"-4 Thd. Free flow cracking L/min (.5 USgpm), bar ( psi),7 (.49),69 bar ( psi),8 bar ( psi) 4,76 bar (4 psi) 65 4,48 bar (65 psi) 6,9 bar ( psi) 8,4 bar (8 psi) Ø 5.8 (.6) 4,5 bar ( psi) Internal leakage, Port to 5 drops/min bar ( psi) Temperature range -4 to C (-4 to 48 F) Cavity C 47,65 Fluids " HEX (.876) All general purpose hydraulic fluids such as MIL H 566, SAE, SAE, etc. Filtration Cleanliness code 8/6/ Standard housing materials Aluminum or steel Weight cartridge only, kg (.48 lbs) Seal kit,7 (.49).875"-4 Thd. time the poppet lifts off the seat and allows flow from port to port. The effective orifice in the free flow direction is adjustable Buna N Viton Viton is a registered trademark of E.I. DuPont Pressure Drop Curves Cartridge only Ø 5.8 (.6) 5 Flow - L/min (,8 cst 49 C) A - RCV * P B - RCV * P 4 C - RCV * P Pressure Drop - psi 4 A B C 5 5 Flow - USgpm (5 SUS F) Port to with fully open adjustment Pressure Drop - bar -.A -4.A EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5

33 RCV- - Check Valve Restrictive Check Valve 76 L/min ( USgpm) 5 bar (5) psi RCV * P * ** *** Function 5 Block material RCV - Check valve with stroke limiter (Restrictive check valve) O - No block A - Aluminum S - Steel Size - Size Seals N - Buna-N V - Viton 4 Style P - Poppet Dimensions mm (inch) 7 Free flow cracking pressure -, bar ( psi) (Anti-cavitation) -,69 bar ( psi) (Anti-cavitation) -,8 bar ( psi) 4 -,76 bar (4 psi) 65-4,48 bar (65 psi) - 6,9 bar ( psi) 8 -,4 bar (8 psi) - 4,5 bar ( psi) 6 Port size - Cartridge only CODE PORT SIZE HOUSIN NUMBER Aluminum Aluminum Steel Light duty Fatigue rated Fatigue rated B /8 BSPP T SAE T SAE 8-75 /4 BSPP /8 BSPP H SAE H SAE See Section J for housing details. 8 Special features - None (Only required if valve has special features - omitted if ) Torque cartridge in housing A Nm (5-4 ft. lbs) S Nm (5-55 ft. lbs) 47,65 (.876) " HEX,7 (.49).875"-4 Thd. Ø 5.8 (.6) Aluminum housings can be used for pressures up to bar ( psi) Steel housings must be used for operating pressures above bar ( psi) EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5-5.A -.A

34 SPC-8 - Check Valve Pilot-to-open, poppet type 9 L/min (5 USgpm) 4 bar (5 psi) Sectional View Operation Pressure on the valve port causes the poppet to lift against the spring force, allowing the flow to the cylinder port. Reverse flow is prevented by the poppet reseating. Performance Data Pressure applied to the pilot port will overcome the cylinder port pressure and lift the poppet from its seat, allowing flow from the cylinder to valve port. Features Hardened and ground poppet gives excellent flow capability for valve size, positive sealing and long working life. Cartridge construction allows installation in actuators, manifold blocks and Hydraulic Integrated Circuits. Fits the same cavity as the overcenter valves of a similar size. Ratings and Specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) 4 bar (5 psi) Cartridge fatigue pressure (infinite life) 4 bar (5 psi) Rated flow 9 L/min (5 USgpm) Pilot ratio : Cracking pressure 5 -, bar (5 psi) 5 -,4 bar (5 psi) 65-4,5 bar (65 psi) Internal leakage (all leak 4 bar (5 psi) Port to Port to unsealed piston* *Unsealed piston only supplied with 5 psi spring option Temperature range Cavity Fluids 5 drops/min. maximum at 4 bar (5 psi) 4 cc/min. maximum, zero leakage with sealed piston 4 to C ( 4 to 48 F) C-8- All general purpose hydraulic fluids such as MIL - H-566, SAE, SAE, etc Recommended filtration Cleanliness code 8/6/ Standard housing materials Aluminum or steel Weight, cartridge only,7 kg (.5 lbs.) Seal kit -76 (Buna-N) -77 (Viton ) Viton is a registered trademark of E.I. DuPont Description Pilot check valves allow flow to pass in one direction, with a low pressure drop, then prevent reverse flow until pilot pressure is applied. There are many applications for this valve type, the most common being to lock and hold a cylinder, or another hydraulic actuator, in position. These valves are ideally suited for fitting directly into a cylinder, giving economy of installation, direct control of cylinder movement and ease of servicing. Pressure Drop Flow - L/min (,8 cst 49 C) Pressure Drop - psi A 6 B 8 C 4 D 4 5 Flow - USgpm (5 SUS F) Pressure Drop - bar A CV6 6*P 5 B CV6 6*P C CV6 6*P 5 -.A EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5

35 SPC-8 - Check Valve Pilot-to-open, poppet type 9 L/min (5 USgpm) 4 bar (5 psi) Model Code SPC 8 (X) P (*) ** ** Basic Code SPC - Single pilot check valve Size 8-8 size Seals Blank - Buna-N V - Viton U - Buna-N with no piston seals W - Viton with no piston seals 4 Style P - Poppet 5 Valve Body Material Omit for cartridge only A - Aluminum S - Steel 6 Port Size Code Port Size Housing Number Aluminum Steel Fatigue Rated Fatigue Rated 4T SAE T SAE /4" BSPP /8" BSPP Cracking Pressure 5 -, bar (5 psi) 5 -,4 bar (5 psi) 65-4,5 bar (65 psi) 8 Special Features - None (Only required if valve has special features, omitted if "") SS - 6 Stainless Steel external components Dimensions mm (inch) Note: Torque cartridge in aluminum or steel housing to 4-4 Nm (5- ft lbs). Cartridge Drawing Basic Code Installation Drawing (Steel) SPC-8, (.87) hex.75" 6 Thd. 8,5 (.) 5.5 (.6) 7.4 (.8) 9. (.6) 54. (.) (.65) 9.7 (.7) 4,4 (.6) 9. (.75) -Slots. (.) 56.9 (.4) 6.5 (.5) 9. (.75) Ø 4, (.559) Ø 5,8 (.6) WARNIN Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5 -.A

36 SPC- - Check Valve Pilot-to-open, poppet type L/min (6 USgpm) bar ( psi) Sectional View Operation Pressure on the valve port causes the poppet to lift against the spring force, allowing the flow to the cylinder port. Reverse flow is prevented by the poppet reseating. Pressure applied to the pilot port will overcome the cylinder port pressure and lift the poppet from its seat, allowing flow from the cylinder to valve port. Features Hardened and ground poppet gives excellent flow capability for valve size, positive sealing and long working life. Cartridge construction allows installation in actuators, manifold blocks and Hydraulic Integrated Circuits. Fits the same cavity as the overcenter valves of a similar size. Performance Data Description Pilot check valves allow flow to pass in one direction, with a low pressure drop, then prevent reverse flow until pilot pressure is applied. There are many applications for this valve type, the most common being to lock and hold a cylinder, or another hydraulic actuator, in position. These valves are ideally suited for fitting directly into a cylinder, giving economy of installation, direct control of cylinder movement and ease of servicing. WARNIN Do not use Single Pilot Check Valves in load holding applications where either overrunning loads are possible or load release speed is critical. Failure to observe these guidelines may result in bodily injury or damage to equipment. Ratings and Specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) bar ( psi) Cartridge fatigue pressure (infinite life) bar ( psi) Rated flow L/min (6 USgpm) Pilot ratio 4: Cracking L/min (.5 USgpm) 5 -,7 bar (5 psi) 5 -,45 bar (5 psi) - 6,9 bar ( psi) Internal leakage Port to 5 drops/min. maximum at bar ( psi) Temperature range 4 to C ( 4 to 48 F) Cavity C-- Fluids All general purpose hydraulic fluids such as MIL - H-566, SAE, SAE, etc. Filtration Cleanliness code 8/6/ Standard housing material Aluminum Weight, cartridge only,8 kg (.8 lbs.) Seal kit (check valve) -567 (Buna-N) (Viton ) Viton is a registered trademark of E.I. DuPont Pressure Drop - psi Pressure Drop Flow - L/min (,8 cst 49 C) A SPC--P-- B SPC--P--5 A B 4 6 Flow - USgpm (5 SUS F) C D C SPC--P--5 D - Port to (piloted open) Pressure Drop - bar -.A.B EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5

37 SPC- - Check Valve Pilot-to-open, poppet type L/min (6 USgpm) bar ( psi) Model Code SPC (X) P ** *** Function SPC - Single pilot check valve Size - size Seal Material Blank - Buna-N V - Viton U - Buna-N with no piston seals W - Viton with no piston seals 4 Style P - Poppet 5 Port Size Code Port Size Housing Number Aluminum Aluminum Light Duty Fatigue Rated Cartridge only B /8" BSPP T SAE /4" BSPP /8" BSPP H SAE H SAE See section J for housing details. 6 Free Flow Cracking Pressure 5 -,7 bar (5 psi) 5 -,45 bar (5 psi) - 6,9 bar ( psi) 7 Special Features - None (Only required if valve has special features, omitted if "") SS - 6 Stainless Steel external components Dimensions mm (inch) Torque cartridge housing A Nm (5-4 ft. lbs). B Nm (5-55 ft. lbs) Cartridge Drawing Basic Code SPC- 5,4 (.) hex 8, (.) Installation Drawing 4,6 (.97) 7.9 (.) Thd. 8,8 (.74) 57. (.5) X7,4 (.8) 4,8 (.7) 75,4 (.97) 46,8 (.84) 5 (.97) 9.5 (.8) 57.5 (.5) 75.4 (.97) 5,4 (.) Ø 5,8 (.6) Ø 7,4 (.684) WARNIN Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5 -.A.B

38 4CK - Check Valve Pilot-to-open, poppet type L/min (8 USgpm) 5 Bar (5 psi) Operation Pressure on the valve port causes the poppet to lift against the spring force, allowing the flow to the cylinder port. Reverse flow is prevented by the poppet reseating. Pressure applied to the pilot port will overcome the cylinder port pressure and lift the poppet from its seat, allowing flow from the cylinder to valve port. Features Hardened and ground poppet gives excellent flow capability for valve size, positive sealing and long working life. Cartridge construction allows installation in actuators, manifold blocks and Hydraulic Integrated Circuits. Fits the same cavity as the overcenter valves of a similar size. Sectional View Performance Data Ratings and Specifications Pilot () Valve () Cyl () Figures based on: Oil Temp = 4 C Viscosity = cst (5 SUS) Rated flow L/min (8 USgpm) Max setting 5 bar (5 psi) Pilot ratio : Cartridge material Working parts hardened & ground steel. Electroless zinc plated body. Standard housing material Standard aluminium (up to bar) Add suffix 77 for steel option Mounting position Unrestricted Cavity number A66 (See section M) Torque cartridge into cavity 45 Nm ( lbs ft) Weight 4CK.8 kg (.8 lbs) 4CK5.4 kg (.75 lbs) 4CKK5.76 kg (.67 lbs) Seal kit number SK4 (Nitrile) SK4V (Viton ) Recommended filtration level BS554/4 Class 8/ (5 micron nominal) Operating temperature - C to +9 C (- to +94 F) Leakage. milliliters/min nominal (5 dpm) Nominal viscosity range 5 to 5 cst Viton is a registered trademark of E.I. DuPont Description Pilot check valves allow flow to pass in one direction, with a low pressure drop, then prevent reverse flow until pilot pressure is applied. There are many applications for this valve type, the most common being to lock and hold a cylinder, or another hydraulic actuator, in position. These valves are ideally suited for fitting directly into a cylinder, giving economy of installation, direct control of cylinder movement and ease of servicing. Pressure Drop Pressurep - psi 5 Flow - L/min Free flow.5 7 Piloted open Flow - US gpm Pressure - bar -4.A EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5

39 4CK - Check Valve Pilot-to-open, poppet type L/min (8 USgpm) 5 Bar (5 psi) Model Code 4CK**** W S 4 5 Basic Code 4CK - Cartridge Only 4CK5 - Cartridge and Body 4CKK4 - Cartridges and Dual Body Pilot Port Size - Internal Port Sizes Code Port Size Housing Number - Body Only Aluminium Steel Aluminium Steel Single Single Double Double W /8" BSP. /4" BSP Pilot Port B674 B8 B686 B8 6T /8" SAE. /4" SAE Pilot Port B56 B85 8T /" SAE. /4" SAE Pilot Port B B7 B8 4 Seals 5 Optional Pilot Seal S - Nitrile (For use with most industrial hydraulic oils) Omit if not required Dimensions mm (inch) SV - Viton (For high temperature and most special fluid applications) Cartridge Only Basic Code 4CK 7. (.8) max 4. A/F Single Valve /8", /" Ports Basic Code 4CK5.5 (.45).8 (.5) 6. (.6) 6.5 (.4) 6.5 (.5). (.6) 9. (.5) 9. (.5) M x.5-6g 6. (.6) 6. (.6) 4. (.65) Pilot () 9.5 (.56) Dual Valve /8", /" Ports Basic Code 4CKK4 Internally Cross Piloted holes Ø9. (.5) thro Valve ().7 (.5) 7. (.76) 6.5 (.4) V V Cyl () 6.5 (.5) 57. (.4) C C Note: For applications above bar ( psi) please consult our technical department or use the steel body option. 6. (.6).7 (.5) 9.8 (.9) 8. (.).6 (4.) holes Ø9. (.5) thro EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5-4.A.B

40 4CK9 - Check Valve Pilot-to-open, poppet type 9 L/min (4 USgpm) 5 bar (5 psi) Operation Pressure on the valve port causes the poppet to lift against the spring force, allowing the flow to the cylinder port. Reverse flow is prevented by the poppet reseating. Pressure applied to the pilot port will overcome the cylinder port pressure and lift the poppet from its seat, allowing flow from the cylinder to valve port. Features Hardened and ground poppet gives excellent flow capability for valve size, positive sealing and long working life. Cartridge construction allows installation in actuators, manifold blocks and Hydraulic Integrated Circuits. Fits the same cavity as the overcenter valves of a similar size. Sectional View Pilot () Valve () Cyl () Performance Data Ratings and Specifications Figures based on: Oil Temp = 4 C Viscosity = cst (5 SUS) Rated flow 9 L/min (4 USgpm) Max pressure 5 bar (5 psi) Pilot ratio 4: Cartridge material Working parts hardened and ground steel. Electroless zinc plated body. Standard housing material Standard aluminium (up to bar). Add suffix 77 for steel option. Mounting position Unrestricted Cavity number A6 (See Section M) Torque cartridge into cavity 9 Nm (66 lbs ft) Weight 4CK9.7 kg (.6 lbs) 4CK95. kg (.9 lbs) 4CKK95. kg (4.5 lbs) Seal kit number SK8 (Nitrile) SK8V (Viton ) Recommended filtration level BS554/4 Class 8/ (5 micron nominal) Operating temperature - C to +9 C (- to +94 F) Leakage. milliliters/min nominal (5 dpm) Nominal viscosity range 5 to 5 cst Viton is a registered trademark of E.I. DuPont Description Pressure Drop Pilot check valves allow flow to pass in one direction, with a low pressure drop, then prevent reverse flow until pilot pressure is applied. There are many applications for this valve type, 4 the most common being to lock and hold a cylinder, or another 6 hydraulic actuator, in position. These valves are ideally suited for fitting directly into 8 a cylinder, giving economy of installation, direct control of cylinder movement and ease of servicing. Pressurep - psi Flow - L/min Piloted open Free flow Flow - US gpm Pressurep - bar -5.A EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5

41 4CK9 - Check Valve Pilot-to-open, poppet type 9 L/min (4 USgpm) 5 bar (5 psi) Model Code 4CK*** 4W S 4 5 Basic Code 4CK9 - Cartridge Only 4CK95 - Cartridge and Body 4CKK95 - Cartridges and Dual Body Pilot Port Sizes - Internal Port Sizes Code Port Size Housing Number - Body Valves Only Aluminium Steel Aluminium Steel Single Single Double Double 4W /" BSP /4" BSP Pilot Port B65 B66 C67 C68 8T /" SAE /4" SAE Pilot Port B86 B9 C87 C56 4 Seals S - Nitrile (For use with most industrial hydraulic oils) SV - Viton (For high temperature and most special fluid applications) 5 Optional Pilot Seal Omit if not required Dimensions mm (inch) Cartridge Only Basic Code 4CK9 8.5 (.7) max. A/F Complete Valve /" Ports Basic Code 4CK95 7. (.76) 6. (.4) 58. (.8) 8. (.5) 8. (.7) 88.5 (.48) max 5. (.) Pilot () Valve M7 x.5-6g 8. (.5) Dual Valve /" Ports Basic Code 4CKK95 Internally Cross Piloted 9. (.75). (.9) 56. (.) 76. (.) holes Ø. (.4) thro 86.5 (.4) 4.5 (.59) 6. (.4) 7. (.76) 58. (.8) V C C V 88.5 (.48) max Cyl () 9. (.75). (.9) 7. (4.) Note: For applications above bar ( psi) please consult our technical department. 8. (.5) 7. (5.) holes Ø. (.4) thro EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5-5.A.B

42 4CKD9 - Check Valve Pilot-to-open, poppet type with decompression stage 9 L/min (4 USgpm) 4 bar (6 psi) Sectional View Operation The ball and poppet are held onto their respective seats by spring force, ensuring positive sealing as long as the pressure on port is equal to or greater than the pressure on port. As soon as the pressure on port exceeds the pressure on port plus the spring force, the valve opens from to. In order to pass flow in the reverse direction, pilot pressure must be applied to port. Once this reaches the required level, the pilot piston acting on the pin in the Center of the poppet lifts the ball off its seat, enabling the fluid to decompress and thus reducing the load pressure acting on port. As the load pressure decreases, the pilot pressure required to open the main stage also decreases and when the correct pilot pressure is reached, the main stage poppet is lifted off its seat by the advancing pilot piston, allowing full flow from to. When calculating the pilot pressure, it must be remembered that any back pressure on port will cause this to increase on a : ratio. Features Decompression stage reduces hydraulic noise on rapid loss of pressure. Precision ground ball and hardened and ground poppet ensure positive sealing and long, trouble-free working life. This valve is directly interchangeable with the 4CK9 check valve and CE*9 series overcenter valve. Performance Data Pilot () Valve () Cyl () Description A decompression pilot check can be used in most applications that use a standard pilot operated check. Free flow in one direction and load holding in the other. The decompression feature allows locked-in pressure to decay in a controlled fashion, reducing hydraulic noise and instability caused by the rapid loss of energy from the actuator. The valve is effective in clamping circuits and when used with intensifiers or when there are high load induced pressures. Ratings and Specifications Figures based on: Oil Temp = 4 C Viscosity = cst (5 SUS) Rated flow 9 L/min (4 USgpm) Max pressure Cylinder Port 4 bar (6 psi) Ports & 5 bar (5 psi) Pilot ratio 5: decompression stage : main stage Cartridge material Working parts hardened and ground steel. Electroless nickel plated body. Standard Housing Material Standard aluminium (up to bar*). Add suffix "77" for steel option. Mounting position Unrestricted Cavity number A6 Torque cartridge into cavity 9 Nm (66 lbs ft) Weight.4 kg (.54 lbs) Seal kit number SK986 (Nitrile) SK986V (Viton ) Recommended filtration level BS554/4 Class 8/ (5 micron nominal) Operating temperature - C to +9 C (- to +94 F) Leakage. milliliters/min nominal (5 dpm) Nominal viscosity range 5 to 5 cst Viton is a registered trademark of E.I. DuPont Pressure Drop Pressurep - psi Flow - L/min Piloted open Free flow Flow - US gpm Pressurep - bar -6.A EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5

43 4CKD9 - Check Valve Pilot-to-open, poppet type with decompression stage 9 L/min (4 USgpm) 4 bar (6 psi) Model Code 4CK*** 4W S 4 5 Basic Code 4CKD9 - Cartridge Only 4CKD95 - Cartridge and Body 4CKKD95 - Cartridges and Dual Body Dimensions mm (inch) Cartridge Only Basic Code 4CKD9 Port Sizes Pilot Port Sizes - Internal 4 Seals S - Nitrile (For use with most industrial hydraulic oils) 8.5 (.7) max Code Port Size Housing Number - Body Only Aluminium Steel Aluminium Steel Single Single Double Double 4W /" BSP /4" BSP Pilot Port B65 B66 C67 C68 8T /" SAE /4" SAE Pilot Port B86 B9 C87 C56.A/F SV - Viton (For high temperature and most special fluid applications) Complete Valve /" Ports Basic Code 4CKD95 7. (.76) 6. (.4) 58. (.8) 5 Optional Pilot Seal Omit if not required 8. (.5) 8. (.7) 88.5 (.48) max Pilot () M7 x.5 8. (.5) 9. (.75). (.9) 56. (.) 76. (.) holes Ø. (.4) thro 5. (.) 7. (.8) min Valve () Complete Valve /" Ports Basic Code 4CKKD95 Internally Cross Piloted C V 86.5 (.4) 4.5 (.59) C V.5 (.48) Note: For applications above bar ( psi) please consult our technical department or use the steel body option. Cyl () Ø. Note: Ensure cavity clears nose end of cartridge. 6. (.4) 7. (.76) 8. (.5) 58. (.8) 9. (.75). (.9) 7. (4.) 7. (5.) holes Ø. (.4) thro 88.5 (.48) max V C C V EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5-6.A.B

44 4CK - Check Valve Pilot-to-open, poppet type L/min ( USgpm) 5 bar (5 psi) Operation Pressure on the valve port causes the poppet to lift against the spring force, allowing the flow to the cylinder port. Reverse flow is prevented by the poppet reseating. Pressure applied to the pilot port will overcome the cylinder port pressure and lift the poppet from its seat, allowing flow from the cylinder to valve port. Features Hardened and ground poppet gives excellent flow capability for valve size, positive sealing and long working life. Cartridge construction allows installation in actuators, manifold blocks and Hydraulic Integrated Circuits. Fits the same cavity as the overcenter valves of a similar size. Sectional View Optional external pilot post Pilot () Valve () Cyl () Performance Data Ratings and Specifications Figures based on: Oil Temp = 4 C Viscosity = cst (5 SUS) Rated flow L/min ( USgpm) Max pressure 5 bar (5 psi) Pilot ratio : Cartridge material Working parts hardened and ground steel. Zinc plated body. Standard housing material Standard aluminium (up to bar). Add suffix 77 for steel option. Mounting position Unrestricted Cavity number A877 (See Section M) Torque cartridge into cavity Nm (74 lbs ft) Weight 4CK.8 kg (.6 lbs) 4CK5.5 kg (.54 lbs) 4CKK5.96 kg (4. lbs) Seal kit number SK8 (Nitrile) SK8V (Viton ) Recommended filtration level BS554/4 Class 8/ (5 micron nominal) Operating temperature - C to +9 C (- to +94 F) Leakage. milliliters/min nominal (5 dpm) Nominal viscosity range 5 to 5 cst Viton is a registered trademark of E.I. DuPont Description Pilot check valves allow flow to pass in one direction, with a low pressure drop, then prevent reverse flow until pilot pressure is applied. There are many applications for this valve type, the most common being to lock and hold a cylinder, or another hydraulic actuator, in position. These valves are ideally suited for fitting directly into a cylinder, giving economy of installation, direct control of cylinder movement and ease of servicing. Pressure Drop Flow - L/min Pressure - psi Piloted open 6 Free flow Flow - US gpm Pressure - bar -7.A EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5

45 4CK - Check Valve Pilot-to-open, poppet type L/min ( USgpm) 5 bar (5 psi) Model Code 4CK**** 6W S 4 5 Basic Code 4CK - Cartridge Only 4CK5 - Cartridge and Body 4CKK5 - Cartridges and Dual Body Pilot Port Sizes Code Port Size Internal W /4" BSP (External Pilot). Omit for bodied valves 4T /4" SAE (External Pilot). Omit for bodied valves 4 Seals S - Nitrile (For use with most industrial hydraulic oils) SV - Viton (For high temperature and mos special fluid applications) Port Sizes - Bodied Valves Only Code Port Size Housing Number - Body Only Aluminium Steel Aluminium Steel Single Single Double Double 6W /4 BSP /4 BSP Pilot Port B6898 B5544 C54 C T /4 SAE /4 SAE Pilot Port B8 C69 C644 6T SAE /4 SAE Pilot Port B78 B84 5 Optional Pilot Seal Omit if not required Dimensions mm (inch) Cartridge Only Basic Code 4CK Complete Valve /4", /" Ports Basic Code 4CK5 holes Ø.5 (.4) thro 7. (.46).6 (.4) 5. (.59) max 8. A/F.6 (4.) 76. (.99) 7. (4.6) max -5/6- UN-A 5.8 (.) 5.4 (.). (.5) 44. (.7) 8. (.7) 55.5 (.9) Pilot () Complete Valve /4" Ports Basic Code 4CKK5 Internally Cross Piloted C C Valve () 9. (.6) V 5.6 (.) V 8. (.) Cyl () Note: For applications above bar ( psi) please consult our technical department or use the steel body.. (4.4) 76. (.) 7. (5.) max 7. (.46).6 (.8) 5. (.97) holes Ø9. (.5) thro V C 8.6 (.5).6 (4.) V C EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5-7.A

46 4CK - Check Valve Pilot-to-open, poppet type L/min (8 USgpm) 5 bar (5 psi) Operation Pressure on the valve port causes the poppet to lift against the spring force, allowing the flow to the cylinder port. Reverse flow is prevented by the poppet reseating. Pressure applied to the pilot port will overcome the cylinder port pressure and lift the poppet from its seat, allowing flow from the cylinder to valve port. Features Hardened and ground poppet gives excellent flow capability for valve size, positive sealing and long working life. Cartridge construction allows installation in actuators, manifold blocks and Hydraulic Integrated Circuits. Fits the same cavity as the overcenter valves of a similar size. Sectional View Performance Data Ratings and Specifications Pilot () Valve () Cyl () Figures based on oil temp of 4 C and viscosity of cst (5 SUS) Rated flow L/min (8 USgpm) Max pressure 5 bar (5 psi) Pilot ratio : Cartridge material Working parts hardened and ground steel. Zinc nickel plated body. Standard housing material Standard aluminium (up to bar). Add suffix 77 for steel option. Mounting position Unrestricted Cavity number A695 (See Section M) Torque cartridge into cavity 5 Nm ( lbs ft) Weight 4CK.8 kg (.6 lbs) 4CK5.5 kg (.54 lbs) 4CKK5.96 kg (4. lbs) Seal kit number SK68 (Nitrile) SK68V (Viton ) Recommended filtration level BS554/4 Class 8/ (5 micron nominal) Operating temperature - C to +9 C (- to +94 F) Leakage.5 milliliters/min nominal (5 dpm) Nominal viscosity range 5 to 5 cst Viton is a registered trademark of E.I. DuPont Description Pilot check valves allow flow to pass in one direction, with a low pressure drop, then prevent reverse flow until pilot pressure is applied. There are many applications for this valve type, the most common being to lock and hold a cylinder, or another hydraulic actuator, in position. These valves are ideally suited for fitting directly into a cylinder, giving economy of installation, direct control of cylinder movement and ease of servicing. Pressure Drop Pressure - psi Flow - L/min Free flow Pilot open Flow - US gpm Pressure - bar -8.A EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5

47 4CK - Check Valve Pilot-to-open, poppet type L/min (8 USgpm) 5 bar (5 psi) Model Code 4CK**** W S 4 5 Basic Code 4CK - Cartridge Only 4CK5 - Cartridge and Body 4CKK5 - Cartridges and Dual Body Pilot Port Size - Internal Port Sizes Code Port Size Housing Number - Body Only Aluminium Steel Aluminium Steel Single Single Double Double W /4 BSP /4 BSP Pilot Port B684 B86 C874 C875 T /4 SAE /4 SAE Pilot Port B6 B474 C8 C564 4 Seals S - Nitrile (For use with most industrial hydraulic oils) SV - Viton (For high temperature and most special fluid applications) 5 Optional Pilot Seal Omit if not required Dimensions mm (inch) Cartridge Only Basic Code 4CK Single Valve /4" Ports Basic Code 4CK5.5 (.9).5 (.4) 49. (.9). (.) max 47.8 A/F.6 (4.) 8. (.5) 5. (5.) max -5/8- UN-A.8 (.5) 6.5 (.5) holes Ø.5 (.4) thro 8. (.5) 97. (.8) 8.5 (.) 69.5 (.74) Pilot () Dual Valve /4" Ports Basic Code 4CKK5 Internally Cross Piloted C C Valve () (.) (.5) holes Ø. (.4) thro. (.4) 49. (.9) V V Cyl () 8. (.5).6 (4.) V V 5. (5.) max Note: For applications above bar ( psi) please consult our technical department or use the steel body. 57. (.4) 97. (.8). (.6) C 95. (.74) 7. (5.) C EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5-8.A.B

48 4CK Series - Check Valve Alternative Body Arrangements for to Liters/min Valves Model Code 4CK**** W S 4 Basic Code 4CK6 - Cartridge and Body Through Ported 4CBK5 - Cartridge and Body Banjo Mounted 4CK5 - Cartridge and Body asket Mounted 4CKK5 - Cartridge and Dual Body 4CK56 - Cartridge and Body Through Ported 4CBK5 - Cartridge and Body Banjo Mounted 4CK5 - Cartridge and Body asket Mounted 4CK56 - Cartridge and Body Through Ported 4CK5 - Cartridge and Body asket Mounted Port Sizes Code Port Size Housing Number Seals S - Nitrile (For use with most industrial hydraulic oils) SV - Viton (For high temperature and most special fluid applications) 4 Optional Pilot Seal - Required Omit if not required Aluminium Steel Aluminium Aluminum Steel Aluminum Steel 4CK Cartridge Through Ported Banjo asket Mounted Cross Piloted Body - Only Mounted Sub- Assembly Sub-Assembly Sub-Assembly W /8" BSP B54 B54 AXP67-W-S BXP6-W-S - BXP447-W-S BXP447-W-S-77 6T /8" SAE BXP447-6T-S-77 4CK Cartridge 6W /4" SAE B69 B6 AXP565-6W-S BXP64-6W-S BXP64-6W-S-77 4CK Cartridge W /4" BSP C67 C68 CXP647-W-S CXP647-W-S-77 Complete Valves - 4CK Cartridge, /8" Ports Complete Valve Through Ported Basic Code 4CK6 Complete Valve Banjo Mounted Basic Code 4CBK5 holes Ø7. (.8) thro 54. (.) 64. (.5) C 6. (.6) 76. (.) 6. (.6) V V 8. (.) 6. (.4) 6. (.) V V 5.8 (.) C C 7. (.76).8 (.5).5 (.45) 6. (.6) 59. (.) max.5 (.4) /4 BSP 6.5 (.5) 6. (.) 5. (.) ) Complete Valve asket Mounted Basic Code 4CK5 Complete Valve Internally Cross Piloted Basic Code 4CKK5.5 (.45) 6. (.) 6. (.4) 5.8 (.) (.5) (.) 76. (. C 56. (.) C V 7. (.8) 6. (.6) holes Ø9. (.5) thro.. (.79) (.79). (.8) 6. (.6) 6. (.6).8 (.5) 45.7 (.8) 5. (.59) 5.8 (.4) C C V holes Ø9. (.5) thro -9.A EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5

49 4CK Series - Check Valve Alternative Body Arrangements for to Liters/min Valves Complete Valves - 4CK Cartridge, /4" Ports Complete Valve Through Ported Basic Code 4CK56 Complete Valve Banjo Mounted Basic Code 4CBK5 Note: For applications above bar please consult our technical department or use the steel body holes Ø9. (.5) thro 8. (.) 9.6 (.8) 76. (.) 5. (.97) 7. (.67) (.5).8) C V V 9. (.54) 6.5 (.44) 9. (.54). (.4) 5. (.98) 6.5 (.44) 8. (.5) 5.4 (.) 76. (.99) max 8. (.5) 76. (.).6 4.) SAE 6 PSI Flange Ports - 4CK Cartridge, /4" Ports Complete Valve asket Mounted Basic Code 4CK5 6.5 (.44).6 (4.) 7. (.67) 76.5 (.).9 (.47) 5.8 (.) 5.8 (.) 5.4 (.) 5.4 (.).9 (.47) 4 holes Ø. (.4) thro 45. (.77) 8. (.7) Complete Valves - 4CK Cartridge, /4" Ports SAE 6 PSI Flange Ports - 4CK Cartridge, /4" Ports Complete Valve Through Ported Basic Code 4CK56 Complete Valve asket Mounted Basic Code 4CK5 5. (4.) 9. (.54) holes Ø. (.4) thro. 7. (4.) (.9) C V V V.6 (4.) C. (4.7) 49. (.9) 4 holes Ø5. (.59) thro 5.9 (.6) 98. (.86).5 (.89) 7. (5.). (.8) (.9) 98. (.86) 7. (5.) 5. (.9) max V C 47. (.86) 5.9 (.6).4 (.) 45. (.77).4 (.) 47. (.86) 75.5 (.97) EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5-9.A

50 4SK - Check Valve Pilot-to-open, poppet type L/min (8 USgpm) 5 bar (5 psi) Sectional View Operation Pressure on the valve port causes the poppet to lift against the spring force, allowing the flow to the cylinder port. Reverse flow is prevented by the poppet reseating. Pressure applied to the pilot port will overcome the cylinder port pressure and lift the poppet from its seat, allowing flow from the cylinder to valve port. Features Hardened and ground poppet gives excellent flow capability for valve size, positive sealing and long working life. Cartridge construction allows installation in actuators, manifold blocks and Hydraulic Integrated Circuits. Fits the same cavity as the overcenter valves of a similar size. Performance Data Pilot () Valve () Cyl () Ratings and Specifications Figures based on oil temperature of 4 C and viscosity of cst (5 SUS) Rated flow L/min (8 USgpm) Maximum pressure 5 bar (5 psi) Pilot ratio : and 5: Cartridge material Working parts hardened and ground steel. Zinc plated body. Mounting position Unrestricted Cavity number A9-TA Torque cartridge into cavity 45 Nm ( lbs ft.) Weight.8 kg (.9 lbs) Seal kit number SK79 (Nitrile) SK79V (Viton ) Recommended Filtration level BS554/4 Class 8/ (5 micron nominal) Operating temperature to +9 C (- to +94 F) Leakage. ml/min nominal Nominal viscosity range 5 to 5 cst Viton is a registered trademark of E. I. DuPont Description Pilot check valves allow flow to pass in one direction, with a low pressure drop, then prevent reverse flow until pilot pressure is applied. There are many applications for this valve type, the most common being to lock and hold a cylinder, or another hydraulic actuator, in position. These valves are ideally suited for fitting directly into a cylinder, giving economy of installation, direct control of cylinder movement and ease of servicing. Pressure Drop Pressurep - psi 5 Flow - L/min Free flow.5 7 Piloted open Flow - US gpm Pressure - bar -.A EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5

51 4SK - Check Valve Pilot-to-open, poppet type L/min (8 USgpm) 5 bar (5 psi) Model Code 4SK S 4 Basic Code 4SK - Complete valve Pilot Ratio - : 5-5: S Seals - Nitrile (for use with most industrial hydraulic oils) SV - Viton (for high temperature & most special fluid applications) 4 Optional Pilot Seal Omit if not required Dimensions mm (inch) Cartridge Only Basic Code 4SK Cavity Basic Code A9-TA Form Drill TD-A Form Reamer TRA. (.8) 9. (.75). A/F.8 (.94) Ref Ø.75 (.5).87 (.86) Ø.8 (.859) -A- M x.5-6h 8. (.7) 45º.6 (.6).6 (.6) Min optional drill Ø for socket clearance Ø5.4 (.). (.8) Ø. (.85) Ø.68 (.84).6 (.8) Ø.7 (.4) º 7.48 (.69) min depth. L.S. 4.8 (.7) M x.5 thread Location shoulder. 4.8 (.6) R (.85) (.8) 5.5 (.79).96 (.6).7 (.5) min full thread.5 (.) x 45º max Ø.49 (.5) 7.5 (.688) Ø 7.45 (.687).6 (.6) Ø7.48 (.69) 45º R (.) 8.6 (.7) (.7) Ø 8.54 (.79).5 A Thread and all diameters.8 (.86) EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5 -.A

52 4SK9 - Check Valve Pilot-to-open, poppet type 9 L/min (4 USgpm) 5 Bar (5 psi) Operation Features Sectional View Pressure on the valve port causes the poppet to lift against the spring force, allowing the flow to the cylinder port. Reverse flow is prevented by the poppet reseating. Pressure applied to the pilot port will overcome the cylinder port pressure and lift the poppet from its seat, allowing flow from the cylinder to valve port. Hardened and ground poppet gives excellent flow capability for valve size, positive sealing and long working life. Cartridge construction allows installation in actuators, manifold blocks and Hydraulic Integrated Circuits. Fits the same cavity as the overcenter valves of a similar size. Performance Data Ratings and Specifications Pilot () Figures based on oil temperature of 4 C and viscosity of cst (5 SUS) Rated flow 9 L/min (4 USgpm) Maximum pressure 5 bar (5 psi) Pilot ratio 4: Cartridge material Working parts hardened and ground steel. Zinc plated body Mounting position Cavity number Unrestricted A9-TA Valve () Torque cartridge into cavity Weight 6 Nm (44 lbs. ft.).9 kg (.86 lbs.) Seal kit number SK9 (Nitrile) SK9V (Viton ) Cyl () Recommended Filtration level Operating temperature BS554/4 Class 8/ (5 micron nominal) C to +9 C (- to +94 F) Leakage. ml/min nominal (5 dpm) Nominal viscosity range 5 to 5 cst Viton is a registered trademark of E. I. DuPont Description Pilot check valves allow flow to pass in one direction, with a low pressure drop, then prevent reverse flow until pilot pressure is applied. There are many applications for this valve type, the most common being to lock and hold a cylinder, or another hydraulic actuator, in position. These valves are ideally suited for fitting directly into a cylinder, giving economy of installation, direct control of cylinder movement and ease of servicing. Pressure Drop Pressurep - psi Flow - L/min Piloted open Free flow Flow - US gpm Pressurep - bar -.A EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5

53 4SK9 - Check Valve Pilot-to-open, poppet type 9 L/min (4 USgpm) 5 Bar (5 psi) Model Code 4SK9 4 S 4 Basic Code 4SK9 - Complete valve Pilot Ratio 4-4: Seals S - Nitrile (for use with most industrial hydraulic oils) SV - Viton (for high temperature and most special fluid applications) 4 Optional Pilot Seal Omit if not required Dimensions mm (inch) Cartridge Only Basic Code 4SK9 Cavity Basic Code Form drill Form reamer A9-TA TD-A TR-A 4. (.65) 8.6 A/F.5 A Thread and all diameters -A-.6 (.6).6 (.6) Ø8. (.5) Ø. (.) 7.4 (.79) Ø 7.8 (.77) Ø 6.4 (.) 6.9 (.) 6.67 (.5) Ø 6.77 (.5) Min optional drill Ø for socket clearance º. L.S. 4.9 (.7). (.8) Thread -4UNS (.78) -4UNS-B.6 (.6) º (.69) 6.59 (.5) 5.4 (.87) 5. (.8).96 (.6) 5.88 (.6) Min full thread. (.) x 45º max Ø7.48 (.69).8 (.877) Ø. (.875).8 (.97) Ø.7 (.9).6 (.6) Ø9.5 (.8) Ø5.88 (.6) 45º 5.56 (.) 8.6 (.7) R (.) Ref 8.6 (.7) min Locating shoulder 7. (.7) Note: For applications above bar ( psi) please consult our technical department or use the steel body. EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5 -.A

54 4SK4 Series - Check Valve Pilot-to-open, poppet type 4 L/min (7 USgpm) 5 bar (5 psi) Sectional View Operation Pressure on the valve port causes the poppet to lift against the spring force, allowing the flow to the cylinder port. Reverse flow is prevented by the poppet reseating. Pressure applied to the pilot port will overcome the cylinder port pressure and lift the poppet from its seat, allowing flow from the cylinder to valve port. Features Hardened and ground poppet gives excellent flow capability for valve size, positive sealing and long working life. Cartridge construction allows installation in actuators, manifold blocks and Hydraulic Integrated Circuits. Fits the same cavity as the overcenter valves of a similar size. Performance Data Ratings and Specifications (P) (V) Figures based on oil temperature of 4 C and viscosity of cst (5 SUS) Rated flow 4 L/min (7 USgpm) Maximum pressure 5 bar (5 psi) Pilot ratio : Cartridge material Working parts hardened and ground steel. Zinc plated body. Mounting position Unrestricted Cavity number A94-T7A Torque cartridge into cavity Nm (5 lbs. ft.) Weight.44 kg (.96 lbs.) Seal kit number SK6 (Nitrile) SK6V (Viton ) Recommended filtration level BS554/4 Class 8/ (5 micron nominal) Operating temperature C to +9 C (- to +94 F) Leakage. ml/min nominal (5 dpm) Nominal viscosity range 5 to 5 cst (C) Viton is a registered trademark of E. I. DuPont Description Pilot check valves allow flow to pass in one direction, with a low pressure drop, then prevent reverse flow until pilot pressure is applied. There are many applications for this valve type, the most common being to lock and hold a cylinder, or another hydraulic actuator, in position. These valves are ideally suited for fitting directly into a cylinder, giving economy of installation, direct control of cylinder movement and ease of servicing. Pressure Drop Flow - L/min Pressure - psi Free flow Piloted open Flow - US gpm 5 5 Pressure - bar -.A EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5

55 4SK4 Series - Check Valve Pilot-to-open, poppet type 4 L/min (7 USgpm) 5 bar (5 psi) Model Code 4SK4 S 4 Function 4SK4 - Complete valve Pilot Ratio - : S Seals - Nitrile (for use with most industrial hydraulic oils) SV - Viton (for high temperature and most special fluid applications) 4 Optional Pilot Seal Omit if not required Dimensions mm (inch) Cartridge Only Basic Code 4SK4 Cavity Basic Code A94-T7A Form drill TD-7A Form reamer TR-7A.75 A/F Thread and all diameters.5 A -A- M6 x.-6h Ø44.45 (.75) 9.7 (.564) Ø 9.67 (.56).6 (.6).6 (.6) 7.9 (.468) Ø 7.4 (.47) 6.58 (.44) Ø 6.5 (.48) º. 46. (.8) All seal lead-ins to be smooth and free of nicks and sharp edges 45º. (.88) R.8. (.9) min depth (P) Locating 4.78 shoulder (.9).. Ø4.7 (.56) (.8) (.44) (.) (.8) 7.48 (.69) Min full thread 45º Ø. (.88) M6x. 45º (V) 46. (.8) Ø5.4 (.).8 (.5) Ø.75 (.5) 4. (.46) Ø 4. (.4).6 (.6) R.8 (C) EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5 -.A

56 DPC-8 - Check Valve Dual, pilot-to-open, poppet type 9 L/min (5 USgpm) 4 bar (5 psi) 4 Operation The valve allows flow from port to port or from port to port 4 when the spring bias is overcome. Flow is blocked from ports 4 to and from to until pilot pressure is applied to ports and respectively. Features Hardened and ground poppets to give minimal internal leakage and long life. Sectional View Performance Data 4 Ratings and Specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) 4 bar (5 psi) Cartridge fatigue pressure (infinite life) 4 bar (5 psi) Rated inlet flow 9 L/min (5 USgpm) Pilot ratio : Maximum internal leakage Ports to and to : 4 cc/min. (8.5 4 bar (5 psi) Ports 4 to and to : 5 4 bar (5 psi) Free flow cracking L/min (.5 USgpm),7 bar (5 psi) Temperature range 4 to C ( 4 to 48 F) Cavity C-8-4 Fluids All general purpose hydraulic fluids such as MIL - H-566, SAE, SAE, etc. Filtration Cleanliness code 8/6/ Standard housing material Aluminum or steel Weight, cartridge only,8 kg (.8 lbs.) Seal kit -787 Urethane Description This is a dual pilot-to-open check valve ideal for stabilizer cylinders fitting directly into the cylinder reducing pipework to a minimum. WARNIN Do not use Pilot-to-Open Check Valves in load holding applications where either overrunning loads are possible or load release speed is critical. Failure to observe these guidelines may result in bodily injury or damage to equipment. Pressure Drop Pressure - psi Flow in USgpm (5 SUS F) A Port to Port B Port to Port 4 Flow - L/min (,8 cst 49 C) B A 5 5 Pressure - bar -.A EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5

57 DPC-8 - Check Valve Dual, pilot-to-open, poppet type 9 L/min (5 USgpm) 4 bar (5 psi) Model Code DPC 8 U A 5 * ** Function DPC - Dual pilot operated check Size 8-8 size Seal Material U - Urethane 4 Pilot Leakage A - Standard 5 Crack Pressure 5 -,7 bar (5 psi) 6 Body Omit for cartridge only A - Aluminum S - Steel 7 Port Size Code Port Size Housing Number Cartridge only Aluminum Fatigue Rated Steel Fatigue Rated /4" BSPP /8" BSPP T SAE T SAE See section J for housing. 8 Special Features - None (Only required if valve has special features, omitted if "") Dimensions mm (inch) Note: Torque cartridge in Aluminum or Steel housing to 4-4 Nm (5- ft. lbs). Cartridge Only Basic Code 4SK4. (.875) Hex Installation Drawing (Steel) 9. (.75) 8.6 (.4) 5.5 (.6) 9. (.75) /4-6 UNF-A (.4) 55.9 (.) 9.8 (.7) 8. (.5) 7 (.88) 8.6 (.5). (.) (.8) 57.5 (.5) -Slots 44. (.7).6 (.49) 4. (.56) 5.8 (.6) WARNIN Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5 -.A

58 4CKKT - Check Valve Dual, pilot-to-open with thermal relief 5 L/min (6.6 USgpm) bar (45 psi) 4 Sectional View Operation Pressure on the valve port causes the poppet to lift against the spring force, allowing the flow to the cylinder port. Reverse flow is prevented by the poppet reseating. Pressure applied to the pilot port will overcome the cylinder port pressure and lift the poppet from its seat, allowing flow from the cylinder to valve port. In dual pilot check valves, each pilot section is cross connected to the opposite line giving automatic pilot operation in both directions. When the pressure in C rises above the setting of the relief valve, the relief valve will open, allowing flow to the V port, relieving pressure on the cylinder. Features Hardened and ground poppet gives excellent flow capability for valve size, positive sealing and long working life. Cartridge construction allows installation in actuators, manifold blocks and Hydraulic Integrated Circuits. Performance Data Ratings and Specifications 4 Figures based on oil temperature of 4 C and viscosity of cst (5 SUS) Rated flow 5 L/min (6.6 USgpm) Maximum pressure bar (45 psi) Pilot ratio : Cartridge material Working parts hardened and ground steel. Electroless zinc plated body. Standard housing material Standard aluminum (up to bar). Add suffix "77"' for steel option. Mounting position Unrestricted Cavity number A744 (See Section M) Torque cartridge into cavity Nm ( lbs. ft.) Weight 4CKKT5.8 kg (.8 lbs) 4CKKT55.4 kg (.75 lbs) Seal kit number SK (Nitrile) SKV (Viton )) Recommended filtration level BS554/4 Class 8/ (5 micron nominal) Operating temperature to +9 C (- to +94 F) Leakage C - V. ml/min nominal (5 dpm) C - V. ml/min nominal (5 dpm) Nominal viscosity range 5 to 5 cst Viton is a registered trademark of E. I. DuPont Description Pilot check valves allow flow to pass in one direction, with a low pressure drop, then prevent reverse flow until pilot pressure is applied. There are many applications for this valve type, the most common being to lock and hold a cylinder, or another hydraulic actuator, in position. A pilot relief valve will protect the cylinder and hoses from thermal expansion of the hydraulic fluid. The maximum flow through the relief is.l/ min. Pressure Drop Flow - L/min Pressure - psi 6 V-C 45 V-C Flow - US gpm Free flow Pressure - bar Pressure - psi Flow - L/min C-V C-V Flow - US gpm Piloted open Pressure - bar -4.A EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5

59 4CKKT - Check Valve Dual, pilot-to-open with thermal relief 5 L/min (6.6 USgpm) bar (45 psi) Model Code 4CKKT** W S Basic Code 4CKKT5 - Cartridge only 4CKKT55 - Cartridge and body Port Size - Bodied Valves Only Code Port Size Housing Number Aluminium Dual W /8" BSP B94 6T /8" SAE B94 4W /" BSP B98 8T /" SAE B99 Pilot Ratio - : 4 Seals S - Nitrile (For use with most industrial hydraulic oils SV - Viton (For high temperature and most special fluid applications) 5 Optional Pilot Seal - Standard Omit if not required 6 Pressure Setting 4-4 bar (5 psi) 8-8 bar (4 psi) 5-5 bar (5 psi) Description mm (inch) Cartridge Only Basic Code 4CKKT5 5.4 A/F ( A/F) 8. (.7) Dual Valve /8" Ports 4CKKT55 Internally Cross -Piloted 8.5 (.7) 8. (.7) 7/8-4-UNF 4.5 (.9) 4 7. (.88) 5.5 (.99) 8.6 (.5) 4(C) (V) 68. (.68) (.5) (.5) 5.8 (.) holes Ø7. (.8) thro 6. (.6).8 (.5) (V) Note: For applications above bar ( psi) please consult our technical department or use the steel body option. (C) EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5-4.A

60 4KD5 - Check Valve Pilot-to-open with decompression stage 5 L/min (6 USgpm) 7 bar ( psi) Operation In free flow direction, flow through inlet unseats the poppet and flows out of the cylinder port. When the control valve is centered the load is locked. When pilot pressure is applied the piston unseats the small poppet in the center of the main poppet. Flow through this small seat area lowers the load or locked pressure (decompression stage). With load pressure reduced the main poppet is then piloted fully open allowing reverse flow. Features Decompression feature for low pilot pressure requirements and to reduce hydraulic noise on rapid loss of pressure. Sectional View Performance Data Ratings and Specifications Valve () Pilot () Cyl () Figures based on oil temperature of 4 C and viscosity of cst (5 SUS) Rated flow 5 L/min (6 USgpm) Maximum pressure 7 bar ( psi) Cylinder Port 4 bar ( psi) Pilot Port Pilot ratio 5: Decompression 4: Full Flow Body material Steel Mounting position Line mounted Weight.8 kg (.8 lbs.) Seal kit number SK6 (Nitrile) SK6V (Viton ) Recommended filtration level BS554/4 Class 8/ (5 micron nominal) Operating temperature to +9 C (- to +94 F) Nominal viscosity range 5 to 5 cst Viton is a registered trademark of E. I. DuPont Description Used to lock a cylinder or part of a circuit and prevent reverse flow until pilot pressure is applied. For use in high pressure, low flow circuits and circuits requiring decompression. Can be used in conjunction with the T6 pressure intensifier. See page J-4. Pressure Drop Flow - L/min Pressure - psi 87 Free flow 58 Piloted open Pressure - bar Flow - US gpm -5.A EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5

61 4KD5 - Check Valve Pilot-to-open with decompression stage 5 L/min (6 USgpm) 7 bar ( psi) Model Code 4KD5 N W S 4 5 Basic Code 4KD5 - Complete valve Adjustment means N - Fixed Port Sizes - Bodied Valves Only W - /4" BSP 4 Seals S - Nitrile (for use with most industrial hydraulic oils) SV - Viton (for high temperature and most special fluid applications) 5 'O' Ring on Pilot Piston - Standard Omit if not required Dimensions mm (inch) Complete Valve /4" Ports Basic Code 4KD5 8. (.) 8. (.) 6. (.6).7 (.5) 57. (.4) 8.5 (.) 7.5 (.8) 7. (.46) holes Ø9. (.5) thro 6. (.48) 76. (.) EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5-5.A

62 5CK - Check Valve Pilot-to-close. ball type L/min (8 USgpm) 5 bar (5 psi) Operation Pressure on the cylinder port causes the ball to lift against the spring force, allowing flow through to the valve port. Reverse flow is prevented by the ball reseating. Pressure applied to the pilot port will hold the ball against its seat, preventing flow from cylinder to valve. Features Easy flow path gives good pressure to flow characteristics and hardened components ensure a long working life. Cartridge construction allows installation in actuators, manifold blocks and Hydraulic Integrated Circuits. They fit the same cavities as the 4CK pilotto-open check valves, so care should be taken when selecting the valve. Sectional View Performance Data Ratings and Specifications Pilot () Valve () Cyl () Figures based on oil temperature of 4 C and viscosity of cst (5 SUS) Rated flow L/min (8 USgpm) Maximum pressure 5 bar (5 psi) Pilot ratio : Cartridge material Working parts hardened and ground steel. Zinc nickel plated body. Standard housing material Standard aluminum (up to bar). Add suffix"77" for steel option Mounting position Unrestricted Cavity number A66 (See Section M) Torque cartridge into cavity 45 Nm ( lbs. ft.) Weight.8 kg (.8 lbs) Seal kit number SK89 (Nitrile SK89V (Viton ) Recommended Filtration level BS554/4 Class 8/ (5 micron nominal) Operating temperature to +9 C (- to +94 F) Leakage. ml/min nominal (5 dpm) Nominal viscosity range 5 to 5 cst Viton is a registered trademark of E. I. DuPont Description Pilot to close check valves allow flow to pass in one direction, with a low pressure drop to prevent reverse flow. When the pilot pressure is applied, flow is prevented in either direction. The pilot ratio of : allows a lower pressure in the pilot line to hold the valve closed. The 5CK series are check cartridges ideally suited for fitting directly onto a cylinder. They are ideal for use in regenerative circuits, accumulator dump circuits and in control of cylinders or motors. Pressure Drop Flow - L/min Pressure - psi Free flow Flow - US gpm Pressure - bar -6.A EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5

63 5CK - Check Valve Pilot-to-close. ball type L/min (8 USgpm) 5 bar (5 psi) Model Code 5CK*** W S 4 5 Basic Code 5CK - Cartridge only 5CK5 - Cartridge & body Pilot Port Size - Internal Omit for line valves Port Size - Bodied Valves Only Code Port Size Housing Number Aluminum Steel W /8" BSP /4" BSP Pilot Port B674 B8 6T /8" SAE /4" SAE Pilot Port B56 8T /" SAE /4" Pilot Port B8 S 4 Seals - Nitrile (for use with most industrial hydraulic oils) SV - Viton (for high temperature and most special fluid applications) 5 Pilot Ratio - : Dimensions mm (inch) Cartridge Only Basic Code 5CK Single Valve /8", /" Ports Basic Code 5CK5 7. (.8) max 4. A/F.5 (.45.8 (.5) 6. ( (.4) 6.5 (.5). (.6) 9. (.5) 9. (.5) M x.5-6g Pilot () 6. (.6) 6. (.6) 4. (.65) 9.5 (.56) holes Ø9. (.5) thro Valve () Cyl () Note: For applications above bar ( psi) please consult our technical department or use the steel body option. EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5-6.A

64 5CK - Check Valve Pilot-to-close, ball type L/min ( USgpm) 5 bar (5 psi) Operation Pressure on the cylinder port causes the ball to lift against the spring force, allowing flow through to the valve port. Reverse flow is prevented by the ball reseating. Pressure applied to the pilot port will hold the ball against its seat, preventing flow from cylinder to valve. Features Easy flow path gives good pressure to flow characteristics and hardened components ensure a long working life. Cartridge construction allows installation in actuators, manifold blocks and Hydraulic Integrated Circuits. They fit the same cavities as the 4CK pilotto-open check valves, so care should be taken when selecting the valve. Sectional View Performance Data Ratings and Specifications Pilot () Valve () Cyl () Figures based on oil temperature of 4 C and viscosity of cst (5 SUS) Rated flow L/min ( USgpm) Maximum pressure 5 bar (5 psi) Pilot ratio : Cartridge material Working parts hardened and ground steel. Zinc nickel plated body. Standard housing material Standard aluminum (up to bar*). Add suffix 77 for steel option. Mounting position Unrestricted Cavity number A877 Torque cartridge into cavity Nm (74 lbs. ft.) Weight.8 kg (.6 lbs) Seal kit number SK8 (Nitrile) SK8 (Viton ) Recommended Filtration level BS554/4 Class 8/ (5 micron nominal) Operating temperature to +9 C (- to +94 F) Leakage. ml/min nominal (5 dpm) Nominal viscosity range 5 to 5 cst Viton is a registered trademark of E. I. DuPont Description Pilot to close check valves allow flow to pass in one direction, with a low pressure drop to prevent reverse flow. When the pilot pressure is applied, flow is prevented in either direction. The pilot ratio of : allows a lower pressure in the pilot line to hold the valve closed. The 5CK series are check cartridges ideally suited for fitting directly onto a cylinder. They are ideal for use in regenerative circuits, accumulator dump circuits and in control of cylinders or motors. Pressure Drop Flow - L/min Pressure - psi Free flow Flow - US gpm Pressure - bar -7.A EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5

65 5CK - Check Valve Pilot-to-close, ball type L/min ( USgpm) 5 bar (5 psi) Model Code 5CK*** W S 4 5 Function 5CK - Cartridge only 5CK5 - Cartridge and body Pilot Port Size - Internal Omit for line valves Port Size Code Port Size Housing Number Aluminum Steel 6W /4" BSP /4" BSP/SAE Pilot Port B6898 B5544 T /4" SAE /4" SAE Pilot Port B8 6T " SAE /4" SAE Pilot Port B78 B84 4 Seals S - Nitrile (for use with most industrial hydraulic oils) SV - Viton (for high temperature and most special fluid applications) 5 Pilot Ratio - : Dimensions mm (inch) Cartridge Only Basic Code 5CK Single Valve /4", " Ports Basic Code 5CK5 5. (.59) max 8. A/F -5/6- UN-A 7. (.46).6 (4.) holes Ø.5 (.4) thro 76. (.99).6 (.5) 7. (4.6) max 55.5 (.9) Pilot () 5.8 (.) 5.4 (.). (.5) 44. (.7) 8. (.6) Valve () Cyl () Note: For applications above bar ( psi) please consult our technical department or use the steel body option. EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5-7.A

66 5CK - Check Valve Pilot-to-close, ball type 5 L/min (65 USgpm) 5 bar (5 psi) Sectional View Operation Pressure on the cylinder port causes the ball to lift against the spring force, allowing flow through to the valve port. Reverse flow is prevented by the ball reseating. Pressure applied to the pilot port will hold the ball against its seat, preventing flow from cylinder to valve. Features Easy flow path gives good pressure to flow characteristics and hardened components ensure a long working life. Cartridge construction allows installation in actuators, manifold blocks and Hydraulic Integrated Circuits. They fit the same cavities as the 4CK pilotto-open check valves, so care should be taken when selecting the valve. Performance Data Pilot () Valve () Cyl () Description Pilot to close check valves allow flow to pass in one direction, with a low pressure drop to prevent reverse flow. When the pilot pressure is applied, flow is prevented in either direction. The pilot ratio of : allows a lower pressure in the pilot line to hold the valve closed. The 5CK series are check cartridges ideally suited for fitting directly onto a cylinder. They are ideal for use in regenerative circuits, accumulator dump circuits and in control of cylinders or motors. Ratings and Specifications Figures based on oil temperature of 4 C and viscosity of cst (5 SUS) Rated flow 5 L/min (65 USgpm) Maximum pressure 5 bar (5 psi) Pilot ratio : Cartridge material Working parts hardened and ground steel. Zinc nickel plated body. Standard housing material Standard aluminum (up to bar*). Add suffix 77 for steel option. Mounting position Unrestricted Cavity number A695 Torque cartridge into cavity 5 Nm ( lbs. ft.) Weight.8 kg (.6 lbs) Seal kit number SK84 (Nitrile) SK84V (Viton ) Recommended Filtration level BS554/4 Class 8/ (5 micron nominal) Operating temperature to +9 C (- to +94 F) Leakage. ml/min nominal (5 dpm) Nominal viscosity range 5 to 5 cst Viton is a registered trademark of E. I. DuPont Pressure Drop Pressure - psi Flow - L/min 4 Free flow Flow - US gpm Pressure - bar -8.A EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5

67 5CK - Check Valve Pilot-to-close, ball type 5 L/min (65 USgpm) 5 bar (5 psi) Model Code 5CK*** W S 4 5 Basic Code 5CK - Cartridge only 5CK5 - Cartridge & body Pilot Port Size - Internal Omit for line valves Port Size - Bodied Valves Only 4 Seals Code Port Size Housing Number - Body Only S Aluminum Steel W /4" BSP /4" BSP/SAE Pilot Port B684 B86 T /4" SAE /4" BSP/SAE Pilot Port B6 B474 - Nitrile (for use with most industrial hydraulic oils) SV - Viton (for high temperature and most special fluid applications) 5 Pilot Ratio - : Dimensions mm (inch) Cartridge Only Basic Code 5CK Single Valve /4" Ports Basic Code 5CK5. (.) max 46. A/F -5/8- UN-A.5 (.9).6 (4.) 8. (.5).5 (.4) 49. (.9) 5. (5.) max 69.5 (.74) max Pilot ().8 (.5) 6.5 (.5) 8. (.5) 97. (.8) holes Ø.5 (.4) thro 8.5 (.) Valve () Cyl () Note: For applications above bar ( psi) please consult our technical department or use the steel body option. EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5-8.A.B

68 SH - Shuttle Valve Ball type L/min (5 USgpm) 5 bar (5 psi) Sectional View Operation When a higher pressure is sensed at inlet than at inlet the ball within the cartridge is forced against a seat opening the higher pressure to outlet. When the higher pressure appears at inlet the ball is forced against the other seat which blocks inlet and opens up inlet to outlet. Features Cartridge design enabling speedy servicing when mounted in a body or in a composite manifold. Inlet () Performance Data Ratings and Specifications Outlet () Inlet () Figures based on: Oil Temp = 4 C Viscosity = cst (5 SUS) Rated flow L/min (5 USgpm) Max Pressure 5 bar (5 psi) Cartridge Material Working parts hardened and ground steel. External steel surfaces zinc plated. Mounting position Unrestricted Cavity Number A697 (See Section M) Torque Cartridge into Cavity 8- Nm (Use Loc-Tite 54) Weight.5 kg (. lbs) Recommended Filtration level BS554/4 Class 8/ (5 micron nominal) Operating Temp - C to +9 C (- to +94 F) Leakage.6 milliliters/min max Nominal Viscosity Range 5 to 5 cst Description This valve provides a means of sensing the higher pressures between two lines on a hydraulic circuit allowing this line to be used for an auxiliary function such as the removal of a mechanically applied brake, the operation of a gauge or to give a remote pressure sensing line for the control of a separate valve. Pressure Drop Pressure - psi 5 4 Flow - L/min Pressure - bar Flow - US gpm -9.A.B EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5

69 SH - Shuttle Valve Ball type L/min (5 USgpm) 5 bar (5 psi) Model Code SH Basic Code SH - Cartridge Only Dimensions mm (inch) Cartridge Only Basic Code SH 5. A/F Inlet () M x. 6. (.6) Outlet () Note: Using LOC-TITE 54, torque cartridge to 8- Nm against the bottom of the cavity. Inlet () EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5-9.A

70 SH6 - Shuttle Valve Ball type 5 L/min ( USgpm) 5 bar (5 psi) Sectional View Operation When a higher pressure is sensed at inlet than at inlet the ball within the cartridge is forced against a seat opening the higher pressure to outlet. When the higher pressure appears at inlet the ball is forced against the other seat which blocks inlet and opens up inlet to outlet. Features Cartridge design enabling speedy servicing when mounted in a body or in a composite manifold. Inlet () Performance Data Outlet () Ratings and Specifications Figures based on: Oil Temp = 4 C Viscosity = cst (5 SUS) Rated flow 5 L/min ( USgpm) Max Pressure 5 bar (5 psi) Cartridge Material Working parts hardened and ground steel. External steel surfaces zinc plated. Mounting position Unrestricted Cavity Number C-I-M8- Torque Cartridge into Cavity 5 Nm (Use Loc-Tite 6) Weight.4 kg (.9 lbs) Recommended Filtration level BS554/4 Class 8/ ( micron nominal) Operating Temp -4 C to + C (-4 to +48 F) Leakage <5 bar Nominal Viscosity Range 5 to 5 cst Inlet () Description This C valve provides a means VIEW- of sensing the higher pressures between two lines on a hydraulic circuit allowing this line to be used for an auxiliary function such as the removal of a mechanically applied brake, the operation of a gauge or to give a remote pressure sensing line for the control of a separate valve. Pressure Drop Flow - USgpmB Pressure - bar Pressure - psi Flow - L/min -9.A EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5

71 SH6 - Shuttle Valve Ball type 5 L/min ( USgpm) 5 bar (5 psi) Model Code SH6 Basic Code SH6 - Cartridge Only Dimensions mm (inch) Cartridge Only Basic Code SH6 8. A/F Inlet () M8x.5 4. (.57) Outlet () Note: Using LOC-TITE 6, torque cartridge to 5 Nm (9.5 Ibs ft) against the bottom of the cavity. Inlet () SH6 EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5-9.A

72 DSV- - Shuttle Valve Ball Type L/min (6 USgpm) bar ( psi) Operation When a higher pressure is sensed at inlet than at inlet the ball within the cartridge is forced against a seat opening the higher pressure to outlet. When the higher pressure appears at inlet the ball is forced against the other seat which blocks inlet and opens up inlet to outlet. Features Cartridge design enabling speedy servicing when mounted in a body or in a composite manifold. Sectional View Performance Data Ratings and Specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Maximum pressure bar ( psi) Cartridge fatigue pressure (infinite life) bar ( psi) Rated flow L/min (6 USgpm) Internal leakage Between ports to, and to <5 bar ( psi) Cavity C-- Temperature range -4 C to + C (-4 to + 48 F) Fluids All general purpose hydraulic fluids such as MIL-H-566, SAE, SAE, etc. Filtration Cleanliness code 8/6/ Standard housing materials Aluminum Weight cartridge only,8 kg (.8 lbs) Seal kits (Buna-N) (Viton ) Viton is a registered trademark of E. I. DuPont Description This valve provides a means of sensing the higher pressures between two lines on a hydraulic circuit allowing this line to be used for an auxiliary function such as the removal of a mechanically applied brake, the operation of a gauge or to give a remote pressure sensing line for the control of a separate valve. Pressure Drop Cartridge only Pressure Drop - psi Flow - L/min (,8 cst 49 C) Pressure Drop - bar Flow - USgpm (5 SUS F) -4.A EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5

73 DSV- - Shuttle Valve Ball Type L/min (6 USgpm) bar ( psi) Model Code DSV (V) B ** Function DSV - Shuttle Valve Size - Size Seals Blank - Buna-N V - Viton 4 Style B - Ball Type 5 Port Size Code Port Size Housing Number - Body Only Aluminum Steel Light Duty Fatigue Rated Cartridge only - - B /8" BSPP T SAE /4" BSPP /8" BSPP H SAE H SAE See section J for housing details. 6 Special Features - None (Only required if valve has special features, omitted if ".") SS - 6 Stainless Steel external components Dimensions mm (inch) Note: Torque cartridge in Aluminum or Steel housing Nm (5-4 ft. lbs). Cartridge Only Basic Code DSV- Installation Drawing 8, (.) 46, (.8) 5,4 (.) hex Thd. 4,6 (.97) 8,8 (.74) 5 (.97) 8. (.) 57. (.5) 9.5 (.8) 57.5 (.5) 75.4 (.97) X7,4 (.8) 4,8 (.7) 5,4 (.) 75,4 (.97) Ø 5,8 (.6) Ø 7,4 (.685) EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5-4.A

74 DSV-4 - Shuttle Valve Ball type L/min (.75 USgpm) 4 bar (5 psi) Operation When a higher pressure is sensed at inlet than at inlet the ball within the cartridge is forced against a seat opening the higher pressure to outlet. When the higher pressure appears at inlet the ball is forced against the other seat which blocks inlet and opens up inlet to outlet. Features Cartridge design enabling speedy servicing when mounted in a body or in a composite manifold. Sectional View Performance Data Ratings and Specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) 4 bar (5 psi) steel housing Cartridge fatigue pressure (infinite life) 4 bar (5 psi) Rated flow L/min (.75 USgpm) Internal leakage Between ports and, and and <5 drops/min 4 bar (5 psi) Cavity C-4- Temperature range -4 C to + C (-4 to + 48 F) Fluids All general purpose hydraulic fluids such as MIL-H-566, SAE, SAE, etc. Filtration level Cleanliness code 8/6/ Weight cartridge only, kg (.44 lbs) Seal kits (Buna-N) (Viton ) Viton is a registered trademark of E. I. DuPont Description This valve provides a means of sensing the higher pressures between two lines on a hydraulic circuit allowing this line to be used for an auxiliary function such as the removal of a mechanically applied brake, the operation of a gauge or to give a remote pressure sensing line for the control of a separate valve. Note: This valve is intended for application as a load sense shuttle valve in load sensing systems -4.A EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5

75 DSV-4 - Shuttle Valve Ball type L/min (.75 USgpm) 4 bar (5 psi) Model Code DSV 4 (V) B (*) Function DSV - Shuttle Valve Size 4-4 Size Seals Blank - Buna-N V - Viton 4 Style B - Ball 5 Valve Housing Material Omit for cartridge only A - Aluminum S - Steel 6 Port Size O - Cartridge Only 7 Special Features - None (Only required if valve has special features, omitted if ) Dimensions mm (inch) Cartridge Only Basic Code DSV-4 9/6" HEX,96 (.56) 7/6- UNF-A 7,87 (.468) Ø 7,85 (.) Ø 8,66 (.4) Note: Torque cartridge in aluminum or steel housing Nm (6- ft lbs). Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5-4.A

76 DSV-8 - Shuttle Valve Ball type L/min (6 USgpm) 4 bar (5 psi) Operation When a higher pressure is sensed at inlet than at inlet the ball within the cartridge is forced against a seat opening the higher pressure to outlet. When the higher pressure appears at inlet the ball is forced against the other seat which blocks inlet and opens up inlet to outlet. Features Cartridge design enabling speedy servicing when mounted in a body or in a composite manifold. Sectional View Performance Data Ratings and Specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Typical application pressure (all ports) 4 bar (5 psi) steel housing Cartridge fatigue pressure (infinite life) 4 bar (5 psi) Rated flow L/min (6 USgpm) Internal leakage Between ports and, and and <5 drops/min 4 bar (5 psi) Cavity C-8- Standard housing materials Aluminum or steel Temperature range -4 C to + C (-4 to + 48 F) Fluids All general purpose hydraulic fluids such as MIL-H-566, SAE, SAE, etc. Filtration level Cleanliness code 8/6/ Weight cartridge only,6 kg (.4 lbs) Seal kits (Buna-N) (Viton ) Viton is a registered trademark of E. I. DuPont Description This valve provides a means of sensing the higher pressures between two lines on a hydraulic circuit allowing this line to be used for an auxiliary function such as the removal of a mechanically applied brake, the operation of a gauge or to give a remote pressure sensing line for the control of a separate valve. Pressure Drop Cartridge only Pressure Drop - psi Flow - L/min (,8 cst 49 C) A 8 B 4 Pressure Drop - bar 4 6 Flow - USgpm (5 SUS F) Note: This valve is intended for application as a load sense shuttle valve in load sensing systems A - Port to port B - Port to port -4.A EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5

77 DSV-8 - Shuttle Valve Ball type L/min (6 USgpm) 4 bar (5 psi) Model Code DSV 8 (V) B (*) ** Function DSV - Shuttle Valve Size 8-8 Size Seals Blank - Buna-N V - Viton 4 Style B - Ball 5 Valve Housing Material Omit for cartridge only A - Aluminum S - Steel 6 Port Size Code Port Size Housing Number - Body Only Aluminum Steel Fatigue Rated Fatigue Rated 4T SAE T SAE /4" BSPP /8" BSPP Special Features - None (Only required if valve has special features, omitted if ) SS - 6Tl Stainless Steel External components Dimensions mm (inch) Cartridge Only Basic Code DSV-8 Installation Drawing (Steel), (.875) Hex.75?"-6 Thd. 8,6 (.4) 9. (.75) 5.5 (.6) 54 (.) 66.7 (.6) 9. (.75) x7.4 (.8) 9.8 (.7) 4,6 (.6).4 (.) 56.9 (.4) 6.5 (.5) Ø 4, (.559) Ø 5,8 (.6) Note: Torque cartridge in aluminum or steel housing Nm (6- ft lbs). Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5-4.A

78 DSV ** B - Shuttle Valve Ball Type, In-line Housing Up to 7 L/min (45 USgpm) 5 bar (5 psi) Operation When a higher pressure is sensed at inlet than at inlet the ball within the cartridge is forced against a seat opening the higher pressure to outlet. When the higher pressure appears at inlet the ball is forced against the other seat which blocks inlet and opens up inlet to outlet. Sectional View Performance Data P Outlet P Ratings and Specifications Performance data is typical with fluid at,8 cst (5 SUS) and 49 C ( F) Maximum pressure bar ( psi) Aluminum housing 5 bar (5 psi) Steel housing Rated flow 6 series - L/min ( USgpm) 8 series - 4,6 L/min (6.5 USgpm) series - 88,9 L/min (.5 USgpm) 6 series - 7, L/min (45 USgpm) Internal leakage Between ports to, and to <5 bar ( psi) Temperature range -4 C to + C (-4 to + 48 F) Fluids All general purpose hydraulic fluids such as MIL-H-566, SAE, SAE, etc. Filtration Cleanliness code 8/6/ Standard housing materials Aluminum or steel Weight 6 series w/aluminum housing, kg (. bs) w/steel housing, kg (.66 lbs) 8 series w/aluminum housing,8 kg (.6 lbs) w/steel housing,9 kg (.86 lbs) series w/aluminum housing,75 kg (.65 lbs) w/steel housing,5 kg (4.95 lbs) 6 series w/aluminum housing,76 kg (.86 lbs) w/steel housing 5,5 kg (.58 lbs) Seals ( required) 6 series 548 (Buna-N) / 9696 (Viton ) 8 series 549 (Buna-N) / 9698 (Viton ) series 54 (Buna-N) / 96 (Viton ) Pressure Drop 6 series 54 (Buna-N) / 965 (Viton ) Viton is a registered trademark of E. I. DuPont Description This valve provides a means of sensing the higher pressures between two lines on a hydraulic circuit allowing this line to be used for an auxiliary function such as the removal of a mechanically applied brake, the operation of a gauge or to give a remote pressure sensing line for the control of a separate valve. -4.A Pressure Drop Flow - L/min (,8 cst 49 C) A 9 B 8 C D Flow - USgpm (5 SUS F) Pressure Drop - psi EATON Screw-In Cartridge Valves E-VLSC-MC-E May Pressure Drop - bar A - 6-Series B - 8-Series C - -Series D - 6-Series 8

79 DSV ** B - Shuttle Valve Ball Type, In-line Housing Up to 7 L/min (45 USgpm) 5 bar (5 psi) Model Code DSV ** (V) B ** *** Function DSV - Shuttle Valve Size 6-6 Size 8-8 Size - Size 6-6 Size Seals Blank - Buna-N V - Viton 4 Style B - Ball 5 Housing Material A - Aluminum S - Steel 6 Port Size 6 Series - /8" NPTF 8 Series - /4" NPTF 6T - SAE 6 Series 4 - /' NPTF 8T - SAE 8 6 Series 6 - /4" NPTF T - SAE Dimensions mm (inch) Cartridge Only Basic Code DSV D C D C A A B B E E F F Aluminum housings can be used for pressures up to bar ( psi). Steel housings must be used for operating pressures above bar ( psi). Model Number A B C D E F DSV-6-B-A, (.87) 44,5 (.75) 9, (.75) 9,5 (.7) 5,4 (.) 9,5 (.7) DSV-6-B-S, (.87) 44,5 (.75),6 (.8), (.4),7 (.5),7 (.5) DSV-8-B-A,8 (.94) 47,6 (.87) 5,4 (.), 7 (.5) 8, (.5),7 (.5) DSV-8-B-S,8 (.94) 47,6 (.87),7 (.5) 5,9 (.6) 4,7 (.7) 5,9 (.6) DSV-8-B-A6T,8 (.94) 47,6 (.87) 5,4 (.), 7 (.5) 8, (.5),7 (.5) DSV-8-B-S6T,8 (.94) 47,6 (.87),7 (.5) 5,9 (.6) 4,7 (.7) 5,9 (.6) DSV--B-A4,7 (.5) 6,5 (.5) 8, (.5) 9, (.75) 5,8 (.) 9, (.75) DSV--B-S4,7 (.5) 6,5 (.5) 4,7 (.7),8 (.86) 57,5 (.5), (.88) DSV--B-A8T,7 (.5) 6,5 (.5) 8, (.5) 9, (.75) 5,8 (.) 9, (.75) DSV--B-S8T,7 (.5) 6,5 (.5) 4,7 (.7),8 (.86) 57,5 (.5), (.88) DSV-6-B-A6 47,6 (.88) 95, (.75) 47,6 (.88),8 (.94) 6,5 (.5),8 (.97) DSV-6-B-S6 47,6 (.88) 95, (.75) 5, (.97) 5, (.98) 6,7 (.47) 5,4 (.) DSV-6-B-AT 47,6 (.88) 95, (.75) 47,6 (.88),8 (.94) 6,5 (.5),8 (.97) DSV-6-B-ST 47,6 (.88) 95, (.75) 5, (.97) 5, (.98) 6,7 (.47) 5,4 (.) EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5-4.A.B

80 - Additional products, product lines, and services offered by Eaton - -4.A EATON Screw-In Cartridge Valves E-VLSC-MC-E May 5