Check Valves. Direct and pilot operated check valve functions for applications up to 350 bar (5000 psi) and 227 L/min (60 USgpm)

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1 Check Valves Direct and pilot operated check valve functions for applications up to 350 bar (5000 psi) and 7 L/min (60 USgpm) EATON Vickers Screw-In Cartridge Valves V-VLOV-MC00-E4 September, 007 -

2 Check Valves Section Contents Typical Application Rated Flow Model Pressure bar (psi) L/min (USgpm) Page Check Valves - Introduction, features & benefits Check Valves, way CV (5000)...8 () CV (5000)...30 (8) CV 0/CV (3000)/350 (5000)...45 ()/45 () CV3 0/CV (3000)/350 (5000)...76 (0)/76 (0) CV (5000)...76 (0)... - CV (5000)...4 (30) CV 6/CV (3000)/350 (5000)...5 (40)/5(40) CV (3000)...7 (60) Check Valves with Bypass Orifice CV (5000)...76 (0) CV (3000)...5 (40)... - Restrictive Check Valves RCV (5000)...76 (0) Single Pilot Operated Check Valves, Cartridge Type SPC (3500)...9 (5) SPC (3000)...3 (6) Single Pilot Operated Check Valves, In-line Housing Type SPC (3000)...45 () SPC (3000)...5 (40) SPC (3000)...7 (60) Single Pilot Operated Check Valves, Cartridge Type (high pressure) POC (5000)...57 (5) POC (5000)...4 (30) Double Pilot Check Valves, Cartridge Type DPC (3500)...9 (5) Double Pilot Check Valves, In-line Housing Type DPC (3000)...45 () DPC (5000)...4 (30) DPC (3000)...5 (40) DPC (3000)...7 (60) EATON Vickers Screw-In Cartridge Valves V-VLOV-MC00-E4 September, 007

3 Check Valves This section gives basic specifications for the full line of Vickers 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. The Vickers 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 sharp-edged 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 0, to 0,7 bar (3 to 300 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 POC*-0 and POC*- series of pilot-to-open check valves complement the CBV*-0 and CBV*- counterbalance cartridges and are physically interchangeable with them. The POC 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 3 is sufficient to unseat the valve. This then permits flow from port to port. The load can also be released through means of an optional screw type override. The POC*-0 covers flow up to 60 L/min (5 USgpm). The POC*- covers flow up to 4 L/min (30 USgpm). With infinite life qualification to a fatigue pressure rating of 30 bar (4500 psi), these POC valves are suitable for use in a broad range of load control applications with typical system operating pressures up to 350 bar (5000 psi). Tailoring of the circuit to gain energy savings while minimizing shock is obtained through the use of several standard cracking pressure ranges from,0 bar (30 psi) to 7 bar (00 psi). When anti-cavitation protection is required, the 0,30 bar (5 psi) spring should be used. For those applications where pilot pressure may not always be available, the valve can be ordered with an optional adjustable override. Features and benefits Products in this catalog have been fatigue tested for one million cycles at 3% or 0 million cycles at 5% 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 These valves can also be used in a C 0 3S or C 0 3S cavity. Four standard cracking pressures permit energy savings, while tailoring the hydraulic system requirements to minimize shock. Unique dual spring design provides high operational efficiency and a low pressure spring option for effective anticavitation protection. Unique design provides compact package and low pressure drops that match or exceed current market expectations and provide for excellent repeatability and stability. 3: pilot ratio satisfies simple load holding application requirements, while providing smooth operation and longer operating life. Optional adjustable override releases the load for situations where pilot pressure is not always available. Single pilot check Also offered are SPC-8 and SPC-0 single pilot check valves with pressures to 40 bar (3500 psi) and flows to 3 L/min (6 USgpm). These valves operate similar to the POC 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. Supporting products Vickers 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 0 bar (3000 psi) or steel 350 bar (5000 psi) configurations. All are available with a choice of BSPP (ISO 08/) or SAE style ports. EATON Vickers Screw-In Cartridge Valves V-VLOV-MC00-E4 September, 007-3

4 CV3-4 Check valve Description The CV3-4-B is a ball type, screw-in cartridge check valve. Operation This valve remains closed until the bias is reached at port at which time the poppet lifts off the seat and allows flow from port to port. Functional Symbol Profile View RATINS AND SPECIFICATIONS Performance data is typical with fluid at,8 cst (05 SUS) and 49 C (0 F) Typical application pressure (all ports) 350 bar (5000 psi) Cartridge fatigue pressure (infinite life) 350 bar (5000 psi) Rated flow 7.6 L/min ( USgpm) Free flow cracking l/min (0.5 USgpm) 5 0,34 bar (5 psi) Internal leakage, Port to 5 drops/min 0 bar (3000 psi) Temperature range -40 to 0 C (-40 to 48 F) Cavity C 4 Fluids All general purpose hydraulic fluids such as: MIL H 5606, SAE 0, SAE 0, etc. Filtration Cleanliness code 8/6/3 Weight cartridge only 0,04 kg (0.09 lbs) Seal kit Buna N Viton Viton is a registered trademark of E.I. DuPont Pressure Drop Curves Cartridge only Pressure vs. Flow - L/min (,8 cst 49 C) Pressure Drop - psi Pressure Drop - bar Flow - USgpm (05 SUS 0 F) -4 EATON Vickers Screw-In Cartridge Valves V-VLOV-MC00-E4 September, 007

5 Model Code CV3-4 CV3 4 (V) B *** ** Function 3 Seals Port size CV3 - Check valve Blank - Buna-N Cartridge only V - Viton Size 4-4 Size 4 Style B - Ball type 5 7 Special features 00 - None (Only required if valve has special features - omitted if 00 ) 6 Free flow cracking pressure 05-0,34 bar (5 psi) Dimensions mm (inch) Torque cartridge in aluminum or steel housing to Nm (6-0 ft. lbs) 9/6" HEX 7/6-0 UNF - A,73 (.50),8 (.859) Ø 8,64 (.340) Aluminum housings can be used for pressures up to 0 bar (3000 psi) Steel housings must be used for operating pressures above 0 bar (3000 psi) EATON Vickers Screw-In Cartridge Valves V-VLOV-MC00-E4 September, 007-5

6 CV3-8 Check Valve Description The CV3 8 P is a direct acting, poppet type check valve. Operation This valve remains closed until the spring bias is reached at port. The poppet then lifts off the seat and allows flow from port to port. Functional Symbol Sectional View RATINS AND SPECIFICATIONS Performance data is typical with fluid at,8 cst (05 SUS) and 49 C (0 F) Typical application pressure (all ports) 350 bar (5000 psi) Cartridge fatigue pressure (infinite life) 80 bar (4000 psi) Rated flow 30 L/min (8 USgpm) Cracking L/min (0.5 USgpm) 4 0,8 bar (4 psi) 0 0,7 bar (0 psi) 5,03 bar (5psi) 5,7 bar (5 psi) 30,07 bar (30 psi) 60 4,0 bar (60 psi) Internal leakage 5 drops/min. 350 bar (5000 psi) Cavity C-8- Standard housing materials Aluminum or steel Temperature range -40 to 0 C (-40 to 48 F) Fluids All general purpose hydraulic fluids such as: MIL H 5606, SAE 0, SAE 0, etc. Filtration Cleanliness code 8/6/3 Weight cartridge only 0,05 kg (0. lb) Seal kits Buna N Viton Viton is a registered trademark of E.I.DuPont Pressure Drop Curves Cartridge only Flow - L/min (,8 cst 49 C) A CV3-8-P-O-60 B CV3-8-P-O-5 C CV3-8-P-O-0 D CV3-8-P-O-4 4 Pressure Drop - psi A B C D Pressure Drop - bar Flow - USgpm (05 SUS 0 F) -6 EATON Vickers Screw-In Cartridge Valves V-VLOV-MC00-E4 September, 007

7 Model Code CV3-8 CV3 8 (V) P (*) ** *** Function CV3 Check Valve Size 8 8 Size 3 Seals Blank Buna-N V Viton 4 Style P Poppet 5 Valve housing material Omit for cartridge only A Aluminum S Steel 6 Port size 0 Cartridge only CODE PORT SIZE HOUSIN NUMBER Aluminum Steel Fatigue rated Fatigue rated 4T SAE T SAE T SAE /4 BSPP /8 BSPP See Section J for housing details. 7 Cracking Pressure 8 Special Features 004 0,8 bar (4 psi) 00 0,70 bar (0 psi) 05,03 bar (5psi) 05,70 bar (5 psi) 030,07 bar (30 psi) 060 4,00 bar (60 psi) 00 None (Only required if valve has special features - omitted if 00 ) SS - 36 Stainless Steel external components Dimensions mm(inch) Torque cartridge in aluminum or steel housing 34-4 Nm (5-30 ft. lbs), (0.87) hex 0.750" 6 Thd. 8,6 (0.34) 7,8 (.09) Ø,6 (0.497) Aluminum housings can be used for pressures up to 0 bar (3000 psi) Steel housings must be used for operating pressures above 0 bar (3000 psi) EATON Vickers Screw-In Cartridge Valves V-VLOV-MC00-E4 September, 007-7

8 CV 0/CV-0 Check valve Description The CV-0-P and CV-0-P is a poppet type, screw-in cartridge check valve. Operation This valve remains closed until the bias is reached at port at which time the poppet lifts off the seat and allows flow from port to port. Functional Symbol Profile View RATINS AND SPECIFICATIONS Performance data is typical with fluid at,8 cst (05 SUS) and 49 C (0 F) Typical application pressure (all ports) CV/CV 0 bar (3000 psi)/350 bar (5000 psi) Cartridge fatigue pressure (infinite life) CV/CV 0 bar (3000 psi)/350 bar (5000 psi) Rated flow 45 L/min ( USgpm) Free flow cracking L/min (0.5 USgpm) 005 0,34 bar (5 psi) 05,03 bar (5 psi) 030,07 bar (30 psi) 065 4,48 bar (65 psi) 080 5, bar (80 psi) 00 6,90 bar (00 psi) 40 9,66 bar (40 psi) 60 7,93 bar (60 psi) 300 0,7 bar (300 psi) Internal leakage, Port to 5 drops / min. 350 bar (5000 psi) Temperature range 40 to 0 C ( 40 to 48 F) Cavity C 0 Fluids All general purpose hydraulic fluids such as: MIL H 5606, SAE 0, SAE 0, etc. Filtration Cleanliness code 8/6/3 Standard housing materials Aluminum or Steel Weight cartridge only 0,08 kg (0.7 lb) Seal kit Buna N Viton Viton is a registered trademark of E.I.DuPont Pressure Drop Curves Cartridge only Pressure Drop - psi Flow - L/min (,8 St 49 C) A 6 50 B 4 C Flow - USgpm (05 SUS 0 F) A - CV(*) 0*P B - CV(*) 0*P C - CV(*) 0*P Pressure Drop - bar -8 EATON Vickers Screw-In Cartridge Valves V-VLOV-MC00-E4 September, 007

9 Model Code CV-0 CV(*) 0 * P * ** *** Function CV Check valve 0 bar (3000 psi) CV Check valve 350 bar (5000 psi) Size 0 0 Size 3 Seals N Buna-N V Viton 4 Style P Poppet 5 Valve housing material 0 Cartridge only A Aluminum S Steel 6 Port size 00 Cartridge only CODE PORT SIZE HOUSIN NUMBER Aluminum Aluminum Steel Light Duty Fatigue rated Fatigue rated 3B 3/8 BSPP T SAE T SAE /4 BSPP /8 BSPP H SAE H SAE See Section J for housing details. 7 Free flow cracking 8 Special Features pressure 00 None 005 0,34 bar (5 psi) 080 5, bar (80 psi) (Only required if valve has (Anti-cavitation) 00 6,90 bar (00 psi) special features - omitted 05,03 bar (5 psi) 40 9,66 bar (40 psi) if 00 ) 030,07 bar (30 psi) 60 7,93 bar (60 psi) SS - 36 Stainless Steel 065 4,48 bar (65 psi) 300 0,70 bar (300 psi) external components Dimensions mm (inch) 5,4 (.0) hex 8,0 (0.3) Torque cartridge in housing A Nm (35-40 ft. lbs) S Nm (50-55 ft. lbs) 0.875" 4 Thd. 3,7 (.5) Ø 5,80 (0.6) Aluminum housings can be used for pressures up to 0 bar (3000 psi) Steel housings must be used for operating pressures above 0 bar (3000 psi) EATON Vickers Screw-In Cartridge Valves V-VLOV-MC00-E4 September, 007-9

10 CV3-0/CV3-0 Check valve Description The CV3-0-P and CV3-0-P is a poppet type, screw-in cartridge check valve. Operation This valve remains closed until the spring bias is reached at port at which time the poppet lifts off the seat and allows flow from port to port. Functional Symbol Sectional View RATINS AND SPECIFICATIONS Performance data is typical with fluid at,8 cst (05 SUS) and 49 C (0 F) Typical application pressure (all ports) CV3/CV3 0 bar (3000 psi)/350 bar (5000 psi) Cartridge fatigue pressure (infinite life) CV3/CV3 0 bar (3000 psi)/350 bar (5000 psi) Rated flow 76 L/min (0 USgpm) Free flow cracking L/min (0.5 USgpm) 003 0, bar (3 psi) 00 0,69 bar (0 psi) 00,38 bar (0 psi) 035,4 bar (35psi) 040,76 bar (40 psi) 065 4,48 bar (65 psi) 00 6,90 bar (00 psi) 80,40 bar (80 psi) 0 4,50 bar (0 psi) Internal leakage, Port to 5 drops / min. 350 bar (5000 psi) Temperature range 40 to 0 C ( 40 to 48 F) Cavity C 0 Fluids All general purpose hydraulic fluids such as MIL H 5606, SAE 0, SAE 0, etc. Filtration Cleanliness code 8/6/3 Standard housing materials Aluminum or steel Weight cartridge only 0,08 kg (0.7 lb) Seal kit Buna N Viton Viton is a registered trademark of E.I.DuPont Pressure Drop Curves Cartridge only Flow - L/min (,8 cst 49 C) A - CV(*)3 0*P B - CV(*)3 0*P C - CV(*)3 0*P Pressure Drop - psi A 0 B C Flow - USgpm (05 SUS 0 F) Pressure Drop - bar -0 EATON Vickers Screw-In Cartridge Valves V-VLOV-MC00-E4 September, 007

11 Model Code CV3-0 CV(*)3 0 * P * ** *** Function CV3 Check valve 0 bar (3000 psi) CV3 Check valve 350 bar (5000 psi) Size 0 0 Size 3 Seals N Buna-N V Viton 4 Style P Poppet 5 Valve housing material 0 None A Aluminum S Steel 6 Port size 00 Cartridge only CODE PORT SIZE HOUSIN NUMBER Aluminum Aluminum Steel Light Duty Fatigue rated Fatigue rated 3B 3/8 BSPP T SAE T SAE /4 BSPP /8 BSPP H SAE H SAE See Section J for housing details. 7 Free flow cracking 8 Special Features pressure 003 0, bar (3 psi) (Anti-cavitation) 00 0,69 bar (0 psi) (Anti-cavitation) 00,38 bar (0 psi) 035,4 bar (35psi) 040,76 bar (40 psi) 065 4,48 bar (65 psi) 00 6,90 bar (00 psi) 80,4 bar (80 psi) 0 4,5 bar (0 psi) 00 None (Only required if valve has special features - omitted if 00 ) SS - 36 Stainless Steel external components Dimensions mm (inch) 5,4 (.0) hex 8,0 (0.3) Torque cartridge in housing A Nm (35-40 ft. lbs) S Nm (50-55 ft. lbs) 0.875" 4 Thd. 3,7 (.5) Ø 5,80 (0.6) Aluminum housings can be used for pressures up to 0 bar (3000 psi) Steel housings must be used for operating pressures above 0 bar (3000 psi) EATON Vickers Screw-In Cartridge Valves V-VLOV-MC00-E4 September, 007 -

12 CV6-0 Check Valve (side in, nose out) Description The CV6-0-P is a poppet type, screw-in cartridge check valve. Operation This valve remains closed until the spring bias is reached at port at which time the poppet lifts off the seat and allows flow from port to port. Functional Symbol Sectional View RATINS AND SPECIFICATIONS Performance data is typical with fluid at,8 cst (05 SUS) and 49 C (0 F) Typical application pressure (all ports) 350 bar (5000 psi) Cartridge fatigue pressure (infinite life) 30 bar (4500 psi) Rated flow 76 L/min (0 USgpm) Free flow cracking L/min (0.5 USgpm) 5 0,34 bar (5 psi) 5,03 bar (5 psi) 5,70 bar (5 psi) 50 3,40 bar (50 psi) Internal leakage, Port to 5 drops / min. 350 bar (5000 psi) Temperature range 40 to 0 C ( 40 to 48 F) Cavity C 0 Fluids All general purpose hydraulic fluids such as: MIL H 5606, SAE 0, SAE 0, etc. Filtration Cleanliness code 8/6/3 Standard housing materials Aluminum or steel Weight cartridge only 0,08 kg (0.7 lb) Seal kit Buna N Viton Viton is a registered trademark of E.I.DuPont Pressure Drop Curves Cartridge only Flow - L/min (,8 cst 49 C) A CV6-0-P-O-50 B CV6-0-P-O-5 C CV6-0-P-O-5 D CV6-0-P-O-5 Pressure Drop - psi A B C 6 3 Pressure Drop - bar D Flow - USgpm (05 SUS 0 F) - EATON Vickers Screw-In Cartridge Valves V-VLOV-MC00-E4 September, 007

13 Model Code CV6-0 CV6 0 (V) P (*) ** *** Function CV6 Check Valve Size 0 0 Size 3 Seals Blank Buna-N V Viton 4 Style P Poppet 5 Valve housing material Omit for cartridge only A Aluminum S Steel 6 Port size 0 Cartridge only CODE PORT SIZE HOUSIN NUMBER 7 Free flow cracking pressure 5 0,34 bar (5 psi) (Anticavitation) 5,03 bar (5 psi) 5,70 bar (5 psi) 50 3,40 bar (50 psi) Aluminum Aluminum Steel Light duty Fatigue rated Fatigue rated 3B 3/8 BSPP T SAE T SAE /4 BSPP /8 BSPP H SAE H SAE See Section J for housing details. 8 Special Features 00 None (Only required if valve has special features - omitted if 00 ) SS - 36 Stainless Steel external components Dimensions mm (inch) 5,4 (.0) hex 8,0 (0.3) Torque cartridge in housing A Nm (35-40 ft. lbs) S Nm (50-55 ft. lbs) 0.875" 4 Thd. 3,7 (.5) WARNIN The cavity should be machined to the 4,9 (0.56) maximum diameter and 36,00 (.47) maximum depth (see cavity detail, page M-). Ø 5,80 (0.6) Aluminum housings can be used for pressures up to 0 bar (3000 psi) Steel housings must be used for operating pressures above 0 bar (3000 psi) EATON Vickers Screw-In Cartridge Valves V-VLOV-MC00-E4 September, 007-3

14 CV- Check valve Description The CV- is a poppet type, screw-in cartridge check valve. Operation This valve remains closed until the spring bias is reached at port at which time the poppet lifts off the seat and allows flow from port to port. Functional Symbol Profile View RATINS AND SPECIFICATIONS Performance data is typical with fluid at,8 cst (05 SUS) and 49 C (0 F) Typical application pressure (all ports) 350 bar (5000 psi) Cartridge fatigue pressure (infinite life) 350 bar (5000 psi) Rated flow 4 L/min (30 USgpm) Free flow cracking L/min (0.5 USgpm).5 0,7 bar (.5 psi) 5.0 0,35 bar (5.0 psi) 0 0,69 bar (0 psi) 0,38 bar (0 psi) 40,76 bar (40 psi) 80 5,50 bar (80 psi) 60,0 bar (60 psi) Internal leakage, Port to 5 drops / min. 350 bar (5000 psi) Hysteresis Less than 0,35 bar (5 psi) Temperature range 40 to 0 C ( 40 to 48 F) Cavity C or C U Fluids All general purpose hydraulic fluids such as: MIL H 5606, SAE 0, SAE 0, etc. Filtration Cleanliness code 8/6/3 Standard housing materials Aluminum or steel Weight cartridge only 0,4 kg (0.54 lb) Seal kit Buna N Viton Viton is a registered trademark of E.I.DuPont Pressure Drop - psi Pressure Drop Curves Cartridge only Flow - L/min (,8 cst 49 C) 0 40 A B C Flow - USgpm (05 SUS 0 F) Pressure Drop - bar A CV--P-O-80 B CV--P-O-0 C CV--P-O-.5-4 EATON Vickers Screw-In Cartridge Valves V-VLOV-MC00-E4 September, 007

15 Model Code CV- CV (V) P (*) *** (U) ** Function CV Check valve Size Size 3 Seals Blank Buna-N V Viton 4 Style P Poppet 5 Valve housing material Omit for cartridge only A Aluminum S Steel 6 Port size 0 Cartridge only CODE PORT SIZE HOUSIN NUMBER C--U C-- C--U C-- Aluminum Aluminum Steel Steel Fatigue rated Fatigue rated Fatigue rated Fatigue rated 0T SAE T SAE / BSPP /4 BSPP See Section J for housing details. 7 Cavity 8 9 Blank Cavity without undercut U Cavity with undercut Cracking pressure.5 0,7 bar (.5 psi) 5.0 0,35 bar (5 psi) 0 0,69 bar (0 psi) 0,38 bar (0 psi) 40,75 bar (40 psi) 80 5,50 bar (80 psi) 60,0 bar (60 psi) Special Features 00 None (Only required if valve has special features - omitted if 00 ) Dimensions mm (inch),6 (.5) hex Torque cartridge in housing A Nm (60-70 ft. lbs) S Nm (75-85 ft. lbs) Aluminum housings can be used for pressures up to 0 bar (3000 psi) Steel housings must be used for operating pressures above 0 bar (3000 psi)..06" Thd. 44,7 (.76) 8,9 (0.75) Ø 3,75 (0.935) EATON Vickers Screw-In Cartridge Valves V-VLOV-MC00-E4 September, 007-5

16 CV-6/CV-6 Check Valve Description The CV-6-P and CV-6-P are poppet type, screw-in cartridge check valves. Operation This valve remains closed until the spring bias is reached at port at which time the poppet lifts off the seat and allows flow from port to port. Functional Symbol Sectional View CV-6 Shown RATINS AND SPECIFICATIONS Performance data is typical with fluid at,8 cst (05 SUS) and 49 C (0 F) Typical application pressure (all ports) CV-6: 0 bar (3000 psi) / CV-6: 350 bar (5000 psi) Cartridge fatigue pressure (infinite life) CV-6: 0 bar (3000 psi) / CV-6: 350 bar (5000 psi) Rated flow 5 L/min (40 USgpm) Free flow cracking L/min (0.5 USgpm) 5 0,34 bar (5 psi) 0,34 bar (0 psi) 30,07 bar (30 psi) 40,67 bar (40 psi) 50 3,45 bar (50 psi) 00 6,90 bar (00 psi) Note: Only 5 psi option available for CV-6 Internal leakage, Port to 5 drops / min. 0 bar (3000 psi) Temperature range 40 to 0 C ( 40 to 48 F) Cavity C 6 Fluids All general purpose hydraulic fluids such as: MIL H 5606, SAE 0, SAE 0, etc. Filtration Cleanliness code 8/6/3 Standard housing materials Steel or Aluminum Weight cartridge only 0,6 kg (0.58 lb) Seal kit Buna N Viton Viton is a registered trademark of E.I.DuPont Pressure Drop Curves Cartridge only Pressure Drop - psi B Flow - L/min (,8 cst 49 C) A Pressure Drop - bar A CV(*)-6-P-O-50 B CV(*)-6-P-O-0 C CV(*)-6-P-O-5 D CV(*)-6-P-O-5 0 D C Flow - USgpm (05 SUS 0 F) -6 EATON Vickers Screw-In Cartridge Valves V-VLOV-MC00-E4 September, 007

17 Model Code CV-6/CV-6 CV(*) 6 (V) P *** ** Function CV Check Valve 0 bar CV Check Valve 350 bar Size 6 6 Size 3 Seals Blank Buna-N V Viton 4 Style P Poppet 5 Port size 0 Cartridge only CODE PORT SIZE HOUSIN NUMBER Aluminum Aluminum Steel Light duty Fatigue rated Fatigue rated 6B 3/4 BSPP T SAE T SAE / BSPP /4 BSPP H SAE H SAE 5663 See Section J for housing details. 6 Free flow cracking pressure 5 0,34 bar (5 psi) (Anti-cavitation) 0,34 bar (0 psi) 30,07 bar (30 psi) 40,67 bar (40 psi) 50 3,45 bar (50 psi) 00 6,90 bar (00 psi) Only 5 psi option available for CV-6 7 Special Features 00 None (Only required if valve has special features - omitted if 00 ) Dimensions mm (inch) Torque cartridge housing: A 08- Nm (80-90 ft. lbs) S Nm (00-0 ft. lbs) 38, (.5) hex.3" Thd. 3,0 (0.5) 44,5 (.75) Ø 8,5 (.) Aluminum housings can be used for pressures up to 0 bar (3000 psi) Steel housings must be used for operating pressures above 0 bar (3000 psi) EATON Vickers Screw-In Cartridge Valves V-VLOV-MC00-E4 September, 007-7

18 CV-0 Check valve Description The CV-0-P is a poppet type, screw-in cartridge check valve. Operation This valve remains closed until the spring bias is reached at port at which time the poppet lifts off the seat and allows flow from port to port. Functional Symbol Sectional View RATINS AND SPECIFICATIONS Performance data is typical with fluid at,8 cst (05 SUS) and 49 C (0 F) Typical application pressure (all ports) 0 bar (3000 psi) Cartridge fatigue pressure (infinite life) 0 bar (3000 psi) Rated flow 7 L/min (60 USgpm) Free flow cracking L/min (0.5 USgpm) 5 0,34 bar (5 psi) 5,03 bar (5 psi) 30,07 bar (30 psi) 60 4,4 bar (60 psi) 00 6,90 bar (00 psi) Internal leakage, Port to 5 drops / min. bar (3000 psi) Temperature range 40 to 0 C ( 40 to 48 F) Cavity C 0 Fluids All general purpose hydraulic fluids such as: MIL H 5606, SAE 0, SAE 0, etc. Filtration Cleanliness code 8/6/3 Standard housing materials Aluminum Weight cartridge only 0,49 kg (.09 lb) Seal kit Buna N Viton Viton is a registered trademark of E.I.DuPont Pressure Drop Curves Cartridge only Flow - L/min (,8 cst 49 C) A CV-0-P-O-00 B CV-0-P-O-30 C CV-0-P-O-5 Pressure Drop - psi A B C Pressure Drop - bar Flow - USgpm (05 SUS 0 F) -8 EATON Vickers Screw-In Cartridge Valves V-VLOV-MC00-E4 September, 007

19 Model Code CV-0 CV 0 (V) P *** *** Function CV Check valve Size 0 0 Size 3 Seals Blank Buna-N V Viton 4 Style P Poppet 5 Port size 0 Cartridge only CODE PORT SIZE HOUSIN NUMBER Aluminum Aluminum Light duty Fatigue rated 8B BSPP T SAE /4 BSPP BSPP H SAE H SAE See Section J for housing details. 6 Free flow cracking pressure 5 0,34 bar (5 psi) (Anti-cavitation) 5,03 bar (5 psi) 30,07 bar (30 psi) 60 4,4 bar (60 psi) 00 6,90 bar (00 psi) 7 Special Features 00 None (Only required if valve has special features - omitted if 00 ) Dimensions mm (inch) 47,6 (.87) hex 4,0 (0.55) Torque cartridge in aluminum housing 8-55 Nm (95-5 ft. lbs).65" Thd. 57, (.5) Ø 36,44 (.435) EATON Vickers Screw-In Cartridge Valves V-VLOV-MC00-E4 September, 007-9

20 CV6-0 Orifice check valve Description The CV6-0-P is a poppet type, screw-in cartridge check valve with bypass orifice. Functional Symbol Sectional View Operation This valve acts a restrictor in the to direction and as a check valve it allows free flow from to. RATINS AND SPECIFICATIONS Performance data is typical with fluid at,8 cst (05 SUS) and 49 C (0 F) Typical application pressure (all ports) 350 bar (5000 psi) Cartridge fatigue pressure (infinite life) 350 bar (5000 psi) Rated flow 76 L/min (0 USgpm) Free flow cracking L/min (0.5 USgpm) 003 0, bar (3 psi) 00 0,69 bar (0 psi) 00,38 bar (0 psi) 035,4 bar (35 psi) 040,76 bar (40 psi) 065 4,48 bar (65 psi) 00 6,90 bar (00 psi) 80,40 bar (80 psi) 0 4,50 bar (0 psi) Orifice size range 0.05 to 0.5 ( mm) Temperature range -40 to 0 C (-40 to 48 F) Cavity C 0 Fluids All general purpose hydraulic fluids such as MIL H 5606, SAE 0, SAE 0, etc. Filtration Cleanliness code 8/6/3 Standard housing materials Aluminum or steel Weight cartridge only 0,08 kg (0.7 lbs) Seal kit Buna N Viton Viton is a registered trademark of E.I. DuPont Pressure Drop Curves Cartridge only 500 Flow - L/min (,8 cst 49 C) A - CV6 0*P B - CV6 0*P C - CV6 0*P Pressure Drop - psi A B C Flow - USgpm (05 SUS 0 F) Port to Pressure Drop - bar -0 EATON Vickers Screw-In Cartridge Valves V-VLOV-MC00-E4 September, 007

21 Model Code CV6-0 CV6 0 * P * ** *** ** Function 5 Valve housing material CV6 - Check valve with bypass orifice Size 0-0 Size 3 Seals N - Buna-N V - Viton 4 Style P - Poppet 0 - No housing A - Aluminum S - Steel 7 Free flow cracking pressure 003-0, bar (3 psi) (Anti-cavitation) 00-0,69 bar (0 psi) (Anti-cavitation) 00 -,38 bar (0 psi) 035 -,4 bar (35 psi) 040 -,76 bar (40 psi) 065-4,48 bar (65 psi) 00-6,90 bar (00 psi) 80 -,4 bar (80 psi) 0-4,5 bar (0 psi) 6 Port size 00 - Cartridge only CODE PORT SIZE HOUSIN NUMBER Aluminum Aluminum Steel Light duty Fatigue rated Fatigue rated 3B 3/8 BSPP T SAE T SAE /4 BSPP /8 BSPP H SAE H SAE See Section J for housing details. 8 Orifice size 9 Special features Specify in thousandths of an inch Ø max Ø min 00 - None (Only required if valve has special features - omitted if 00 ) SS - 36 Stainless Steel external components Dimensions mm (inch) Torque cartridge in housing A Nm (35-40 ft. lbs) S Nm (50-55 ft. lbs) 5,4 (.0) hex 0.875" 4 Thd. 3,7 (.5) 8,0 (0.3) Ø 5,80 (0.6) Aluminum housings can be used for pressures up to 0 bar (3000 psi) Steel housings must be used for operating pressures above 0 bar (3000 psi) EATON Vickers Screw-In Cartridge Valves V-VLOV-MC00-E4 September, 007 -

22 CV6-6 Orifice check valve Description The CV6-6-P is a poppet type, screw-in cartridge check valve with bypass orifice. Operation This valve acts a restrictor in the to direction and as a check valve it allows free flow from to. Functional Symbol Sectional View RATINS AND SPECIFICATIONS Performance data is typical with fluid at,8 cst (05 SUS) and 49 C (0 F) Typical application pressure (all ports) 0 bar (3000 psi) Cartridge fatigue pressure (infinite life) 0 bar (3000 psi) Rated flow 5 L/min (40 USgpm) Free flow cracking L/min (0.5 USgpm) 005 0,34 bar (3 psi) 00,34 bar (0 psi) 030,07 bar (30 psi) 050 3,45 bar (50 psi) Orifice size range inch ( mm) Temperature range -40 to 0 C (-40 to 48 F) Cavity C 6 Fluids All general purpose hydraulic fluids such as MIL H 5606, SAE 0, SAE 0, etc. Filtration Cleanliness code 8/6/3 Standard housing materials Aluminum Weight cartridge only 0,6 kg (0.58 lbs) Seal kit Buna N Viton Viton is a registered trademark of E.I. DuPont Pressure Drop Curves Cartridge only A - CV6 6*P B - CV6 6*P C - CV6 6*P Pressure Drop - psi Flow - L/min (,8 cst 49 C) A 4 B C Pressure Drop - bar Flow - USgpm (05 SUS 0 F) Port to - EATON Vickers Screw-In Cartridge Valves V-VLOV-MC00-E4 September, 007

23 Model Code CV6-6 CV6 6 * P * *** *** *** Function 5 Block material CV6 - Check valve with bypass orifice 0 - No housing A - Aluminum Size 6-6 Size 3 Seals N - Buna-N V - Viton 4 Style P - Poppet 7 Free flow cracking pressure 005-0, bar (5 psi) (Anti-cavitation) 00 -,34 bar (0 psi) 030 -,07 bar (30 psi) 040 -,76 bar (40 psi) 050-3,45 bar (50 psi) 00-6,90 bar (00 psi) 6 Port size Cartridge only CODE PORT SIZE HOUSIN NUMBER Aluminum Aluminum Light duty Fatigue rated 6B 3/4 BSPP T SAE / BSPP /4 BSPP H SAE H SAE 5663 See Section J for housing details. 8 Orifice size 9 Special features Specify in thousandths of an inch Ø max Ø min 00 - None (Only required if valve has special features - omitted if 00 ) Dimensions mm (inch) Torque cartridge in aluminum housing 08- Nm (80-90 ft. lbs).5" HEX.3"- Thd. 44,58 (.75),7 (.500) Ø 8,53 (.3) EATON Vickers Screw-In Cartridge Valves V-VLOV-MC00-E4 September, 007-3

24 RCV3-0 Restrictive check valve Description The RCV3-0-P is a poppet type, screw-in cartridge check valve with stroke limiter. Operation This valve remains closed until the spring bias is reached at port at which time the poppet lifts off the seat and allows flow from port to port. The effective orifice in the free flow direction is adjustable. Functional Symbol Sectional View RATINS AND SPECIFICATIONS Performance data is typical with fluid at,8 cst (05 SUS) and 49 C (0 F) Typical application pressure (all ports) 350 bar (5000 psi) Cartridge fatigue pressure (infinite life) 350 bar (5000 psi) Rated flow 76 L/min (0 USgpm) Free flow cracking L/min (0.5 USgpm) 003 0, bar (3 psi) 00 0,69 bar (0 psi) 00,38 bar (0 psi) 040,76 bar (40 psi) 065 4,48 bar (65 psi) 00 6,90 bar (00 psi) 80,40 bar (80 psi) 0 4,50 bar (0 psi) Internal leakage, Port to 5 drops/min 0 bar (3000 psi) Temperature range -40 to 0 C (-40 to 48 F) Cavity C 0 Fluids All general purpose hydraulic fluids such as MIL H 5606, SAE 0, SAE 0, etc. Filtration Cleanliness code 8/6/3 Standard housing materials Aluminum or steel Weight cartridge only 0, kg (0.48 lbs) Seal kit Buna N Viton Viton is a registered trademark of E.I. DuPont Pressure Drop Curves Cartridge only 500 Flow - L/min (,8 cst 49 C) A - RCV3 0* P B - RCV3 0* P C - RCV3 0* P Pressure Drop - psi A B C Flow - USgpm (05 SUS 0 F) Port to with fully open adjustment Pressure Drop - bar -4 EATON Vickers Screw-In Cartridge Valves V-VLOV-MC00-E4 September, 007

25 Model Code RCV3-0 RCV3 0 * P * ** *** Function 5 Block material RCV3 - Check valve with stroke limiter (Restrictive check valve) O - No block A - Aluminum S - Steel Size 0-0 Size 3 Seals N - Buna-N V - Viton 4 Style P - Poppet Dimensions mm (inch) 7 Free flow cracking pressure 003-0, bar (3 psi) (Anti-cavitation) 00-0,69 bar (0 psi) (Anti-cavitation) 00 -,38 bar (0 psi) 040 -,76 bar (40 psi) 065-4,48 bar (65 psi) 00-6,90 bar (00 psi) 80 -,4 bar (80 psi) 0-4,5 bar (0 psi) 6 Port size 00 - Cartridge only CODE PORT SIZE HOUSIN NUMBER Aluminum Aluminum Steel Light duty Fatigue rated Fatigue rated 3B 3/8 BSPP T SAE T SAE /4 BSPP /8 BSPP H SAE H SAE See Section J for housing details. 8 Special features 00 - None (Only required if valve has special features - omitted if 00 ) Torque cartridge in housing A Nm (35-40 ft. lbs) S Nm (50-55 ft. lbs) 47,65 (.876) " HEX 3,7 (.49) 0.875"-4 Thd. Ø 5.8 (.6) Aluminum housings can be used for pressures up to 0 bar (3000 psi) Steel housings must be used for operating pressures above 0 bar (3000 psi) EATON Vickers Screw-In Cartridge Valves V-VLOV-MC00-E4 September, 007-5

26 SPC-8 Single pilot check valve Description The SPC 8 is a poppet type, pilot-to-open, screw-in cartridge type check valve. Operation The SPC 8 allows flow from port to port 3 when the spring bias is overcome. Flow is blocked from port 3 to port until sufficient pilot pressure is applied at port. Functional Symbol 3 Sectional View 3 RATINS AND SPECIFICATIONS Performance data is typical with fluid at,8 cst (05 SUS) and 49 C (0 F)) Typical application pressure (all ports) 40 bar (3500 psi) Cartridge fatigue pressure (infinite life) 40 bar (3500 psi) Rated flow 9 L/min (5 USgpm) Pilot ratio 3: Cracking pressure 5,0 bar (5 psi) 35,4 bar (35 psi) 65 4,5 bar (65 psi) Internal leakage. All leakage 40 bar (3500 psi) Port 3 to 5 drops / min. 40 bar (3500 psi) Port to Unsealed piston* 40 cc/min. maximum, zero leakage with sealed piston. *Unsealed piston only supplied with 5 psi spring option. Temperature range -40 to 0 C (-40 to 48 F) Cavity C 8 3 Fluids All general purpose hydraulic fluids such as: MIL H 5606, SAE 0, SAE 0, etc. Filtration Cleanliness code 8/6/3 Standard housing materials Aluminum or steel Weight cartridge only 0,07 kg (0.5 lb) Seal kit Buna N Viton Viton is a registered trademark of E.I. DuPont Pressure Drop Curves Cartridge only Pressure Drop - psi Flow - L/min (,8 cst 49 C) A 0 B C 4 0 D Pressure Drop - bar A 65 psi (port to 3) B 35 psi (port to 3) C 5 psi (port to 3) D Port 3 to (piloted open) 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. Flow - USgpm (05 SUS 0 F) -6 EATON Vickers Screw-In Cartridge Valves V-VLOV-MC00-E4 September, 007

27 Model Code SPC-8 SPC 8 (X) P (*) ** ** Function SPC Single pilot check valve Size 8 8 Size 3 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 housing material Omit for cartridge only A Aluminum S Steel 6 Port size 7 Cracking Pressure 0 Cartridge only 5,0 bar (5 psi) CODE PORT SIZE HOUSIN NUMBER 35,4 bar (35 psi) 65 4,5 bar (65 psi) Aluminum Steel Fatigue rated Fatigue rated 4T SAE T SAE /4 BSPP /8 BSPP See Section J for housing details. 8 Special Features 00 None (Only required if valve has special features - omitted if 00 ) SS - 36 Stainless Steel external components Dimensions mm (inch) Torque cartridge in aluminum or steel housing to 34-4 Nm (5-30 ft. lbs), (0.87) hex 0.750" 6 Thd. 8,5 (0.33) 3 4,4 (.63) Ø 4, (0.559) Ø 5,8 (0.6) Aluminum housings can be used for pressures up to 0 bar (3000 psi) Steel housings must be used for operating pressures above 0 bar (3000 psi) EATON Vickers Screw-In Cartridge Valves V-VLOV-MC00-E4 September, 007-7

28 SPC-0 Single pilot check valve Description The SPC-0 is a poppet type pilot-to-open check valve, screw-in cartridge type. Operation This valve allows flow from Port to Port 3, when the spring bias is overcome. Flow is blocked from Port 3 to Port until sufficient pilot pressure is applied at Port. Functional Symbol 3 Sectional View 3 Pressure Drop - psi RATINS AND SPECIFICATIONS Performance data is typical with fluid at,8 cst (05 SUS) and 49 C (0 F) Typical application pressure (all ports) 0 bar (3000 psi) Cartridge fatigue pressure (infinite life) 0 bar (3000 psi) Rated flow 3 L/min (6 USgpm) Cracking L/min (0.5 USgpm) 5,7 bar (5 psi) 50 3,45 bar (50 psi) 00 6,90 bar (00 psi) Internal leakage, Port 3 to 5 drops / min. 0 bar (3000 psi) Temperature range 40 to 0 C ( 40 to 48 F) Pilot ratio 4: Cavity C 0 3 Fluids All general purpose hydraulic fluids such as: MIL H 5606, SAE 0, SAE 0, etc. Filtration Cleanliness code 8/6/3 Standard housing materials Aluminum Weight cartridge only 0,08 kg (0.8lb) Seal kit (Check valve) Buna N Viton Viton is a registered trademark of E.I. DuPont Pressure Drop Curves Cartridge only Flow - L/min (,8 cst 49 C) A B Flow - USgpm (05 SUS 0 F) C D Pressure Drop - bar A SPC-0-P-0-00 B SPC-0-P-0-50 C SPC-0-P-0-5 D Port 3 to (piloted open) 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. -8 EATON Vickers Screw-In Cartridge Valves V-VLOV-MC00-E4 September, 007

29 Model Code SPC-0 SPC 0 (X) P ** *** Function SPC Single pilot check valve Size 0 0 Size 3 Seals 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 0 Cartridge only 6 Free flow cracking pressure 5,7 bar (5 psi) 50 3,45 bar (50 psi) 00 6,90 bar (00 psi) 7 Special Features 00 None (Only required if valve has special features - omitted if 00 ) SS - 36 Stainless Steel external components CODE PORT SIZE HOUSIN NUMBER Aluminum Light duty Aluminum Fatigue rated 3B 3/8 BSPP T SAE /4 BSPP /8 BSPP H SAE H SAE See Section J for housing details. Dimensions mm (inch) 5,4 (.0) hex 8,0 (0.3) Torque cartridge in housing A Nm (35-40 ft. lbs) S Nm (50-55 ft. lbs) Thd. 3 46,8 (.84) Aluminum housings can be used for pressures up to 0 bar (3000 psi) Steel housings must be used for operating pressures above 0 bar (3000 psi) Ø 5,80 (0.63) Ø 7,40 (0.684) EATON Vickers Screw-In Cartridge Valves V-VLOV-MC00-E4 September, 007-9

30 SPC-0 Single pilot check valve Description The SPC-0 is an in-line housing type, pilot-to-open check valve. Operation This valve allows flow from the valve port to the cylinder port when the spring bias is overcome. Flow is blocked from the cylinder port to the valve port until sufficient pilot pressure is applied at the pilot port. Functional Symbol Cyl. Cyl. Sectional View Pilot Valve Pilot Valve RATINS AND SPECIFICATIONS Performance data is typical with fluid at,8 cst (05 SUS) and 49 C (0 F) Typical application pressure (all ports) 0 bar (3000 psi) Rated flow 45 L/min ( USgpm) Free flow cracking L/min (0.5 USgpm),03 bar (5 psi) Internal leakage cylinder port to valve port 5 drops / min 0 bar (3000 psi) Temperature range 40 to 0 C ( 40 to 48 F) Pilot ratio 4: Fluids All general purpose hydraulic fluids such as: MIL H 5606, SAE 0, SAE 0, etc. Filtration Cleanliness code 8/6/3 Standard housing materials Aluminum Weight 0,5 kg (.4 lb) Seal kit (Check valve) Buna N Viton Seal kit (Pilot piston) Buna N Viton Viton is a registered trademark of E.I.DuPont Pressure Drop - psi Pilot Pressure calculation Nominal pressure to open valve by remote control Pilot pressure at Pilot port = Cracking pressure + Pressure at Cyl port + (0.75 x Pressure at Valve port) 4 Pressure Drop Curves Cartridge only Flow - L/min (,8 c St 49 C) A B Pressure Drop - bar A Valve to Cyl port (Free Flow) B Cyl to Valve port (Piloted Flow) 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 Flow - USgpm (05 SUS 0 F) -30 EATON Vickers Screw-In Cartridge Valves V-VLOV-MC00-E4 September, 007

31 Model Code SPC-0 SPC 0 (S) (V) P ** Function SPC Single pilot check valve Size 0 0 Size 4 Seals 6 Port size 7 Blank Buna-N 3B 3/8 BSPP (Light duty) V Viton 6T SAE 6 (Light duty) 5 Seating type P Poppet Special Features 00 None (Only required if valve has special features - omitted if 00 ) 3 Piston Seals Blank No seals S With seals Dimensions mm (inch) CV-0(V)-P-O-5 Torque cartridge in housing Nm (35-40 ft. lbs) 3,7 (.5) 34,0 (.34) HOUSIN ALL PART PORT SIZE PORTS NUMBER 3B 3/8 BSPP T SAE ,8 (0.63) Cylinder 88,9 (3.50) 7,9 (0.3) 57, (.5) 9, (0.75) 63,5 (.50) 57, (.5) Pilot 3,7 (.5) 3, (0.3) 38, (.50) Valve 7, (0.8) plcs. EATON Vickers Screw-In Cartridge Valves V-VLOV-MC00-E4 September, 007-3

32 SPC-6 Single pilot check valve Description The SPC-6 is an in-line housing type, pilot-to-open screw-in cartridge type check valve. Operation This valve allows flow from the valve port to the cylinder port when the spring bias is overcome. Flow is blocked from the cylinder port to the valve port until sufficient pilot pressure is applied at the pilot port. Functional Symbol Cyl. Pilot Valve Sectional View Cyl Valve Pilot Pressure Drop - psi RATINS AND SPECIFICATIONS Performance data is typical with fluid at,8 cst (05 SUS) and 49 C (0 F) Typical application pressure (all ports) 0 bar (3000 psi) Rated flow 5 L/min (40 USgpm) Free flow cracking L/min (0.5 USgpm),38 bar (0 psi) Internal leakage cylinder port to valve port 5 drops / min. 0 bar (3000 psi) Temperature range 40 to 0 C ( 40 to 48 F) Pilot ratio 4: Fluids All general purpose hydraulic fluids such as: MIL H 5606, SAE 0, SAE 0, etc. Filtration Cleanliness code 8/6/3 Standard housing materials Aluminum Weight,83 kg (4.03 lb) Seal kit (Check valve) Buna N Viton Seal kit (Pilot piston) Buna N Viton Viton is a registered trademark of E.I.DuPont Pilot Pressure calculation Nominal pressure to open valve by remote control Pilot pressure at Pilot port = Cracking pressure + Pressure at Cyl port Pressure Drop Curves Cartridge only + (0.75 x Pressure at Valve port) Flow - L/min (,8 cst 49 C) Flow - USgpm (05 SUS 0 F) A B Pressure Drop - bar A Valve to Cyl port (Free Flow) B Cyl to Valve port (Piloted Flow) 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. -3 EATON Vickers Screw-In Cartridge Valves V-VLOV-MC00-E4 September, 007

33 Model Code SPC-6 SPC 6 (S) (V) P *** Function SPC Single pilot check valve Size 6 6 Size 3 Piston Seals Blank No seals S With seals 4 Seals Blank Buna-N V Viton 5 Seating type P Poppet 6 Port size 7 Special Features 6B 3/4 BSPP (Light duty) T SAE (Light duty) 00 None (Only required if valve has special features - omitted if 00 ) Dimensions mm (inch) CV-6(V)-P-O-0 Torque cartridge in housing 08- Nm (80-90 ft. lbs) 50,8 (.00) HOUSIN ALL PART PORT SIZE PORTS NUMBER 6B 3/8 BSPP T SAE ,4 (.00) 88,9 (3.5) Cylinder 7,0 (5.00),7 (0.5) 5,4 (.00) 0,6 (4.00) 9, (3.63) Pilot 50,8 (.00) 4,8 (0.9) 57, (.5) Valve 0,3 (0.4) plcs. EATON Vickers Screw-In Cartridge Valves V-VLOV-MC00-E4 September,

34 SPC-0 Single pilot check valve Description The SPC-0 is an inline housing type, pilot-to-open check valve. Operation This valve allows flow from the valve port to the cylinder port when the spring bias is overcome. Flow is blocked from the cylinder port to the valve port until sufficient pilot pressure is applied at the pilot port. Functional Symbol Cyl Cyl. Sectional View Pilot Valve RATINS AND SPECIFICATIONS Performance data is typical with fluid at,8 cst (05 SUS) and 49 C (0 F) Typical application pressure (all ports) 0 bar (3000 psi) Rated flow 7 L/min (60 USgpm) Free flow cracking L/min (0.5 USgpm),03 bar (5 psi) Internal leakage cylinder port to valve port 5 drops / min. 0 bar (3000 psi) Temperature range 40 to 0 C ( 40 to 48 F) Pilot ratio 4: Fluids All general purpose hydraulic fluids such as: MIL H 5606, SAE 0, SAE 0, etc. Filtration Cleanliness code 8/6/3 Standard housing materials Aluminum Weight 3,7 kg (6.98 lb) Seal kit (Check valve) Buna N Viton Seal kit (Pilot piston) Buna N Viton Viton is a registered trademark of E.I.DuPont Pilot Pressure calculation Pilot Valve Nominal pressure to open valve by remote control Pilot pressure at Pilot port = Cracking pressure + Pressure at Cyl port + (0.75 x Pressure at Valve port) 4 Pressure Drop Curves Cartridge only Flow - L/min (,8 cst 49 C) Pressure Drop - psi A B Pressure Drop - bar A Valve to Cyl port (Free Flow) B Cyl to Valve port (Piloted Flow) 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. Flow - USgpm (05 SUS 0 F) -34 EATON Vickers Screw-In Cartridge Valves V-VLOV-MC00-E4 September, 007

35 Model Code SPC-0 SPC 0 (S) (V) P *** Function SPC Single pilot check valve Size 0 0 Size 3 Piston Seals Blank No seals S With seals 4 Seals Blank Buna-N V Viton 5 Seating type P Poppet 6 Port size 7 Special Features 8B BSPP (Light duty) 00 None 6T SAE 6 (Light duty) (Only required if valve has 0T SAE 0 (Light duty) special features - omitted if 00 ) Dimensions mm (inch) CV-0(V)-P-O-5 Torque cartridge in housing 8-55 Nm (95-5 ft. lbs) 63,5 (.50) HOUSIN ALL PART PORT SIZE PORTS NUMBER 8B BSPP T SAE T SAE ,8 (.5) 3,8 (.5),7 (0.5) Cylinder 5,4 (6.00), (4.38) 4,3 (4.50) 0,6 (4,00) Pilot 57, (.5) 6,3 (4.6) 6,3 (0.4) 73.0 (.88) Valve 3,5 (0.53) plcs. EATON Vickers Screw-In Cartridge Valves V-VLOV-MC00-E4 September,

36 POC-0 Pilot operated check valve Description The POC-0 is a pilot-toopen, screw-in cartridge type check valve. Operation The POC-0 will positively lock a load from port to port, but will release the load by applying pressure to the pilot port (port 3). The load can also be released by adjusting the optional override. Functional Symbols 3 F Type 3 S Type Sectional View RATINS AND SPECIFICATIONS Performance data is typical with fluid at,8 cst (05 SUS) and 49 C (0 F) Typical application pressure (all ports) 350 bar (5000 psi) Cartridge fatigue pressure (infinite life) 30 bar (4500 psi) Rated flow 57 L/min (5 USgpm) Pilot ratio 3: Internal leakage, Port to Less than 5 drops / min. 350 bar (5000 psi) Free flow cracking L/min (0.5 USgpm) 0,3 bar (5 psi);,0 bar (30 psi); 5, bar (75 psi); 6,9 bar (00 psi) Hysteresis less than 3 bar (45 psi) Temperature range 40 to 0 C ( 40 to 48 F) Cavity C 0 3S Fluids All general purpose hydraulic fluids such as: MIL H 5606, SAE 0, SAE 0, etc. Filtration Cleanliness code 8/6/3 Standard housing materials Aluminum or Steel Weight cartridge w/out override 0,0 kg (0.3 lb) cartridge w/override 0,7 kg (0.36 lb) Seal kit Buna-N Viton Viton is a registered trademark of E.I.DuPont 3 Pressure Drop - psi Pressure Drop Curves Cartridge only Flow in L/min (,8 cst 49 C) C 7 D E Flow in USgpm (05 SUS 0 F) 3: Ratio A Pilot pressure, nominal at Port 3 = B (Crack Pressure + Port Pressure - Port Pressure 3 4 Pressure Drop - bar A 00 psi B 75 psi C 30 psi D 5 psi E Full Pilot WARNIN Do not use Pilotto-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. + Port Pressure -36 EATON Vickers Screw-In Cartridge Valves V-VLOV-MC00-E4 September, 007

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