Reusable contamination basket prevents loss of retained contaminants into the reservoir during element replacement.

Transcription

1 APPLICATION RETURN LINE FILTERS Series RF & RFD Pressures to 36 PSI Flows to 3 GPM HYDAC RF and RFD In-Tank Return Line Filters are designed for use on hydraulic power units, machine tools, plastics machinery, mobile equipment, and hydraulic test equipment. These filters are also suitable for lubrication and coolant filtration applications. These filters can be installed in the reservoir on the return side of the system to capture all system-generated contamination. These filters can also be used as In-line Return Line Filters. PRODUCT FEATURES RF/RFD 6-33 housings and lids are aluminum castings. RF/RFD housings and lids are ductile iron. Non-welded housing design reduces stress concentrations and prevents fatigue failure. Inlet/outlet port options include NPT port, SAE straight thread O- ring boss, and SAE 4-bolt flange to allow easy installation without costly adapters. O-ring seals are used to provide positive, reliable sealing. Choice of O-ring materials (Nitrile, Fluoro Rubber, EPDM) provides compatibility with petroleum oils, synthetic fluids, water-glycols, oil/water emulsions, and high water base fluids. Bolt-on lid requires minimal clearance for removal. RF Filters Reusable contamination basket prevents loss of retained contaminants into the reservoir during element replacement. Clogging indicators can be serviced without interruption of the hydraulic system. All RFD duplex filters have a balltype selector valve to provide continuous filtration without system shut-down to change clogged elements. FILTER ELEMENTS HYDAC RF and RFD filters are available with disposable Betamicron BN3HC elements having 2 psid collapse pressure and absolute ratings of 3,, 1, and 2 micron. HYDAC RF and RFD filters are also available with cleanable elements. Wire Screen (W/HC) elements have a 2 psid collapse pressure and nominal ratings of 2, 74, and 149 micron. For applications which do not require fine filtration, disposable HYDAC Polyester (P/HC) elements may be selected. Polyester elements have 14 RFD Filters psid collapse pressure and nominal ratings of 1 and 2 micron. All filter media is supported to achieve flow fatigue resistance. Proper support of the filter media also provides high Beta Ratio values (particle removal efficiency) even at high differential pressures. The efficiency of many competitive elements drastically deteriorates as the element clogs and differential pressure increases. High quality epoxy adhesive is used to bond the end caps to the media and to bond the seam of the media. All elements available for HYDAC RF and RFD filters have the bypass valve built into the filter element. As a result, a new bypass valve is provided each time the element is changed, making it less likely that a bypass valve will stick open, jam, or fail through fatigue.

2 Filter Type RF RFD = In-Tank Return Line Filter = Duplex In-Tank Return Line Filter RF Filter Media BN3HC = Betamicron AM = Aquamicron Disposable BN/AM = Betamicron Aquamicron (1 P/HC = Polyester W/HC = Wire Screen Cleanable Size RF 6, 11, 16, 24, 33, 66, 9, 13 RFD 61, 111, 161, 241, 331, 661, 91, 131 Type of Connection G = Threaded (Sizes RF 6 RF 33 & RFD 61 RFD 241) F = Flange (Sizes RF 33 RF 13 & RFD 331 RFD 131) Filtration Rating (Microns) 3 Betamicron Absolute 1 (BN3HC) 2 Filtration Rating 3 Betamicron Aquamicron ß x ³2 1 (BN/AM) (1 4 Aquamicron (AM) ß 4 ³1 Type of Static Clogging Indicator Model Code: Filter Assembly RF & RFD Filters A = no clogging indicator Indicator Model B = visual (pop-up) clogging indicato VR2B. H = electrical clogging indicator (AC Electric Switch) VR2H. D = electrical/visual (lamp) clogging indicator VR2D./L... E = color-coded pressure gauge (also Type ES) VR2E. F = pressure switch (42 volt max.) (DC Electric Switch) VR2F. (For additional information, see HYDAC brochure Clogging Indicators ) Type Number 1 = Standard Connection Modification Number Port Configuration 3 = NPT Inlet/Outlet Connections 12 = SAE Straight Thread Inlet/Outlet Connections 16 = SAE Flange Code 61 Inlet Connections Seals (omit) = Nitrile (NBR) (Standard) V = Fluoro Rubber (FKM) EPR = Ethylene Propylene (EPDM) Bypass Valve BN3HC 33 G 1 H 1. 1 / 3 - V - B6 1 Polyester 2 (P/HC) Nominal 2 Fitration 74 Wire Screen Rating (W/HC) 149 (omit) = 43 psid (3 bar) - Return line (standard) KB = No Bypass - Flushing system B6 = 87 psid (6 bar) - Return line (extended service life) B1 = 1 psid (1 bar) - Lubrication or coolant applications B.2 = 3 psid (.2 bar) - Suction line Supplementary SO 13H = Modification of BN3HC Elements For Phosphate Ester Fluids SO 1H = Anodized Housing For Water Based Fluids (Sizes 6-33) L24 = Lamp for 24 Volt L48 = Lamp for 48 Volt D-type clogging L11 = Lamp for 11 Volt indicator only L23 = Lamp for 23 Volt T7 T1 = Indicator Thermal Lockout, 7 F = Indicator Thermal Lockout, 1 F Consult factory for B and BM indicators 1) Betamicron Aquamicron Combination Absolute and Water Removal Elements available in sizes 33, 66, 9, and 13. Model Codes containing RED are non-stock items Contact HYDAC for availability 2

3 Model Code: Return Line Filter Elements Element Size Housing Application RF RFD ( Return Line Elements 33 R 1 BN3HC / - Filtration Rating (Micron) 3 = 3 µm = µm Betamicron 1 = 1 µm (BN3HC) ß x ³ 2 Absolute 2 = 2 µm Filtration 3 = 3 µm Betamicron Aquamicron (2 1 = 1 µm (BN/AM) ß x ³ 2 4 = 4 µm Aquamicron (AM) (3 ß 4 ³ 1 Water Removal 1 = 1 µm Polyester 2 = 2 µm (P/HC) Nominal 2 = 2 µm 74 = 74 µm Wire Screen Filtration (W/HC) 149 = 149 µm Type of Media BN3HC = Betamicron P/HC AM = Polyester = Aquamicron Disposable BN/AM = Betamicron Aquamicron W/HC = Wire Screen Cleanable Seals (omit) = Nitrile (NBR) (standard) V = Fluoro Rubber (FKM) EPR = Ethylene Propylene (EPDM) Bypass Valve Cracking Pressure (omit) = 43 psid (3 bar) - Return line (standard) KB = No Bypass - Flushing system B6 = 87 psid (6 bar) - Return line (extended service life) B1 = 1 psid (1 bar) - Lubrication or coolant applications B.2 = 3 psid (.2) bar - Suction line Supplementary SO 13H = Modification of BN3HC Elements for Phosphate Ester Fluids 1) RFD Filters require two elements. 2) Betamicron Aquamicron Combination Absolute and Water Removal Elements available in Sizes 33, 66, 9, and 13 3) Aquamicron Water Removal Elements Available in Size 33 and Larger. Model Codes containing RED are non-stock items Contact HYDAC for availability 3

4 Engineering Data: RF & RFD Filters Design Mounting Method In-Tank Return Line Filter 4 Mounting Holes in Filter Housing Connections Inlet Outlet RF 6/11 1² NPT 1² NPT SAE-16 (1-/16-12UN-2B) SAE-16 (1-/16-12UN-2B) RF 16/24 1-1/4² NPT 1-1/4² NPT SAE-2 (1-/8-12UN-2B) SAE-2 (1-/8-12UN-2B) RF 33 2² NPT 2² NPT SAE-32 Flange, Code 61 2² NPT RF 66 SAE-48 Flange, Code 61 3² NPT RF 9 SAE-6 Flange, Code 61 SAE-6 Flange, Code 61 RF 13 SAE-64 Flange, Code 61 SAE-64 Flange, Code 61 RFD 61/111 3/4² NPT 1² NPT RFD 161/241 1² NPT 1-1/2² NPT RFD 331 SAE-32 Flange, Code 61 2² NPT RFD 661 SAE-48 Flange, Code 61 3² NPT RFD 91 SAE-64 Flange, Code 61 SAE-6 Flange, Code 61 RFD 131 SAE-64 Flange, Code 61 SAE-64 Flange, Code 61 Direction of Flow Inlet: Side of Housing Outlet: Bottom of Housing Housing Pressure Ratings Operating: 36 psi (2 bar) Proof: 72 psi ( bar) Fatigue: Contact HYDAC office Burst: Contact HYDAC office Element Collapse Pressure Ratings Standard Elements: BN3HC: 2 psid (17 bar) (ISO 2941) W/HC: 2 psid (17 bar) P/HC, AM, BN/AM: 14 psid (1 bar) Fluid Temperature Range RF/RFD 6-33: -4 F to +2 F (-4 C to 121 C) RF/RFD 66-13: -1 F to +2 F (-26 C to 121 C) Based on Nitrile Seals under maximum continuous operating pressure. Please contact HYDAC for information on extreme low temperature applications (below -1 F) on RF/RFD Fluid Compatibility Compatible with all petroleum oils and synthetic fluids rated for use (ISO 2943) with Fluoro Rubber or EPDM seals. Contact HYDAC office for information on special housing and element constructions available for use with water glycols, oil/water emulsions, and HWBF. Flow Fatigue Resistance Filter medium is supported to achieve flow fatigue resistance. (ISO 3724) Contact HYDAC office for information. Trip Pressure of Static Indicators P = 29 psi (2 bar) - 1% (standard) P = 72 psi ( bar) - 1% (optional) Cracking Pressure of ÆP = 43 psid (3 bar) + 1% (standard) Bypass Valve ÆP = 87 psid (6 bar) + 1% (optional) Hydraulic Symbol RF RFD A A B B1 B2 Above Subject to Technical Modifications 4

5 Weights: RF/RFD MODEL WITH ELEMENT WITHOUT ELEMENT lbs. kg. lbs. kg. RF RF RF RF RF RF RF RF MODEL WITH ELEMENTS WITHOUT ELEMENTS lbs. kg. lbs. kg. RFD RFD RFD RFD RFD RFD RFD RFD Filtration Efficiency Multi-Pass Filtration Efficiency Ratings to ISO/DIN 472 for Betamicron Elements Filter Sizing Calculations Betamicron Element 1. ÆP Assembly = ÆP Housing + ÆP Element Housing Curves Absolute Rating Terminal ÆP Across Filter Element 3BN3HC ß3 ³ 2 72 psi BN3HC ß ³ 2 72 psi 1BN3HC ß1 ³ 2 72 psi 2BN3HC ß2 ³ 2 72 psi The housing curves are based on test results using mineral oil with a Specific Gravity of.86. Differential pressure increases in proportion to specific gravity of applicable fluid. RF FILTERS ÆP Housing = ÆP Chart x Actual Specific Gravity.86 RF 6/11 HOUSING RF 16/24 HOUSING Æ P in psi Æ P in psi Æ P in psi RF 33 HOUSING Æ P in psi RF 66HOUSING Æ P in psi RF 9/13 HOUSING 4

6 RFD FILTERS 1. 1 RFD 61/111 HOUSING & TRANSFER VALVE 1. 1 RFD 161/241 HOUSING & TRANSFER VALVE 1. 1 RFD 331 HOUSING & TRANSFER VALVE Æ in psi Æ in psi Æ in psi Æ in psi 1 1 RFD 661 HOUSING & TRANSFER VALVE Æ in psi RFD 91/131 HOUSING & TRANSFER VALVE Bypass Valve Curve Curve shown is applicable for mineral oil with a specific gravity of.86. Differential pressure increases in proportion to the specific gravity of the fluid. To find ÆP across a bypass valve divide Application Flow by Maximum Recommended and find percentage; then read ÆP from graph. ÆP Curve x Actual Specific Gravity ÆP Valve =.86 Element ÆP Calculations Polyester (P/HC) and Wire Screen (W/HC) Elements To find ÆP across a clean element divide Application Flow by Maximum Recommended Flow and find percentage; then read P from the appropriate graph top of next page Æ in psi A C 2% 4% 6% 8%1%12% as % value of flow SIZE A: 11R.../24R... SIZE B: 6R.../16R... 33R.../66R.../13R... SIZE C: 9R... B Application Flow x 1 Max. Recommended Flow = % of Flow Example: 2µm Wire Screen, 1 gpm, Size 6 Viscosity = 242 SUS Specific Gravity =.86 1 gpm x 1 = 63% of Flow (Flow%) 6 gpm ÆP Element =.2 psid x 242 x.86 (from graph pg 7) Element Size Max. Recommended Flow 6 16 gpm gpm gpm gpm gpm gpm 9 21 gpm gpm ÆP Element =.4 psid 6

7 The element curves tables are based on test results using mineral oil with a kinematic viscosity of 141 SUS and a specific gravity of.86. The differential pressure across the element changes proportionally to the viscosity and specific gravity. ÆP Element = ÆP Curve x Actual Viscosity Actual Specific Gravity 141 x.86 POLYESTER ELEMENTS WIRE SCREEN ELEMENTS ÆP in bar ÆP in psid % 2% 4% 6% 8% 1% 12% 1 µm P/HC 2 µm P/HC as % of Max. recommended flow ÆP in bar % 2% 4% 6% 8% 1% 12% as % of Max. recommended flow Note: ÆP across the...r 74 W/HC and...r 149 W/HC elements are approximately the same as for the...r 2 W/HC elements....r...bn3hc Betamicron 3 Plus &...R...BN/AM Betamicron Aquamicron Elements x Actual Viscosity (SUS) x Actual Specific Gravity ÆP Elements = Elements (K) Flow Factor x Flow Rate (gpm) 141 (SUS).86 (from tables below) ÆP in psid all µm W/HC Element (K) Factors for Filter Sizing...R...BN3HC (psi/gpm) size 3 µm µm 1 µm 2 µm Element (K) Flow Factors for Filter Sizing...R...BN/AM (psi/gpm) Size 3µm 1µm 6 NA NA 11 NA NA 16 NA NA 24 NA NA Sizing Aquamicron Filters Factors in Selection Aquamicron elements remove water most effectively when flow is relatively low and stable. Consequently, they should be installed in off-line filters when possible. Whether located in an off-line loop or return line, care should be taken to size the NFHD adequately, according to the Guidelines below. In some cases, it may be necessary to increase the number of housings beyond that required for dirt removal, especially when: Water contamination is a serious, persistent problem Maximum water retention is desired Cost savings resulting from longer equipment and fluid life often justify a filtration system that is optimal for both dirt and water removal. The elements have an absolute rating of ß 4 ³ 1 for particulate filtration, but are intended primarily for water removal. Guidelines Size 33: Retained Water Per Element (1 Highest Capacity 3 gpm (or less) 2.3 Quarts Intermediate Capacity 1 gpm 2. Quarts Maximum Allowable Flow 23 gpm 1.6 Quarts Size 66: Highest Capacity 1 gpm (or less) 1.2 Quarts Intermediate Capacity gpm 1. Quarts Maximum Allowable Flow 11 gpm.8 Quarts Size 9: Highest Capacity 1 gpm (or less) 1.2 Quarts Intermediate Capacity gpm 1. Quarts Maximum Allowable Flow 11 gpm.8 Quarts Size 13: Highest Capacity 1 gpm (or less) 1.2 Quarts Intermediate Capacity gpm 1. Quarts Maximum Allowable Flow 11 gpm.8 Quarts Notes: 1) Capacity based on mineral oil at 141 SUS, assuming 2 or more passes of fluid through filter. Capacity is moderately lower at elevated viscosity. 7

8 Dimensons: RF Filters RF 6-33 G D6 D (Bolt Circle) B1 B3 Hex 1 1/16 27 in G 1/2 Indicator Port B1 B H6 (Clearance required for element changeout) H D3 D7 x T2 (4 places) B6 OUTLET H4 H3 H2 H1 INLET D4 D1 RF 9-13 F D6 D (Bolt Circle) B1 B3 Hex 1 1/16 27 in G 1/2 Indicator Port B1 B H6 (Clearance required for element changeout) H VIEW X-X B B6 D7 x T2 (4 places) D3 OUTLET H4 H3 H2 B6 H1 D7 x T2 (4 places) INLET D4 X D1 X 8

9 Dimensions: RF Filters RF INLET OUTLET Size B1 B2 B3 B B6 D1 (1 D3 (2 D4 (2 D (3 6 G RF 11 G RF 16 G RF 24 G RF 33 G RF 33 F RF 66 F RF 9 F RF 13 F NPT or 1 NPT or mm 73mm 48mm 8mm SAE 16 SAE 16 1mm NPT or 1 NPT or mm 73mm 48mm 8mm SAE 16 SAE 16 1mm mm mm mm mm 1 1/2 NPT or 1-1/2 NPT or SAE 2 SAE mm mm mm mm mm 1 1/4 NPT or 1 1/4 NPT or SAE 2 SAE mm NPT 2 NPT mm 126mm 8mm 13mm 1mm NPT mm 126mm 8mm 77.8mm 42.9mm 13mm.8mm 17mm NPT mm 166mm 11mm 16.4mm 61.9mm 17mm 76.2mm 22mm mm 21mm 13mm 12.7mm 69.8mm 28mm 88.9mm 88.9mm 29mm mm 21mm 14mm mm 28mm 11.6mm 11.6mm 29mm RF UNC Size D6 (4 D7 H1 H2 H3 H4 H H6 T2 6 G.217 _ _.mm 92mm 74mm 34mm 11mm 11mm 9mm RF 11 G RF 16 G.217 _ _.mm 19mm 74mm 34mm 11mm 11mm 16mm.26 _ _ 6.mm 12mm 89mm 4mm 11mm 11mm 19mm RF 24 G.26 6.mm _ mm mm mm _.43 11mm mm _ RF 33 G.34 9mm _ mm mm mm.1 13mm.43 11mm mm _ RF 33 F.34 9mm 1/ mm mm mm.1 13mm.43 11mm mm.91 23mm RF 66 F.1 14mm / mm mm mm.1 13mm.43 11mm mm mm RF 9 F.79 18mm / mm mm mm.1 13mm.43 11mm mm.87 22mm RF 13 F.79 18mm / mm mm mm.1 13mm.43 11mm mm.87 22mm 1) Dimension D1 is the opening on the reservoir. 2) RF 6,11, 24 G Inlet/Outlet ports can be either NPT or SAE straight thread, not a combination. Refer to dimensions D3 and D4. 3) Dimension D is the diameter for the mounting bolt pattern circle. 4) Dimension D6 is the bore for the mounting screws. Dimensions are for general information only. Due to constant development and updating of details, we ask that all critical dimensions be verified by requsting a certified print. 9

10 Dimensions: RFD D6 D Mounting Bolt Circle L B3 Notch On Shaft Indicates Flow Direction B4 H H6 D3 D7 x T2 Hex 1 1/16 27 G 1/2" Indicator Port H7 H2 H3 H4 B6 H1 OUTLET 1 D1 B B2 OUTLET 2 D1 RFD G RFD 91/131 F B7 B8 D7 x T2 (4 places) D4 D4 1 O S O S

11 Dimensions: RFD Filters RFD Size B1 B2 B3 B4 B B6 B7 B8 61 G RFD 111 G RFD 161 G RFD 241 G RFD 331 G RFD 661 F RFD 91 F RFD 131 F mm 17mm 4mm 26mm mm 17mm 4mm 26mm mm 21mm 42mm 33mm mm 21mm 42mm 33mm _ - 1mm 24mm 69mm 44mm mm 33mm 1mm 2mm 16.4mm 61.9mm mm 39mm 14mm 64mm 13.2mm 77.8mm 12.7mm 69.8mm mm 41mm 14mm 66mm 13.2mm 77.8mm 13.2mm 77.8mm RFD INLET OUTLET UNC Size D1 (1 D3 D4 D D6 (2 D7 61 G 3.1 3/4 NPT 1 NPT mm 1mm RFD 111 G RFD 161 G RFD 241 G RFD 331 G RFD 661 F RFD 91 F RFD 131 F 3.1 3/4 NPT 1 NPT mm 1mm NPT 1 1/2 NPT mm 1mm NPT 1 1/2 NPT mm 1mm NPT _ 1/ mm.8mm 17mm NPT / mm 76.2mm 22mm 14mm / mm 11.6mm 88.9mm 29mm 18mm / mm 11.6mm 11.6mm 29mm 18mm RFD Size H1 H2 H3 H4 H H6 H7 L T2 T3 61 G RFD 111 G RFD 161 G RFD 241 G RFD 331 G RFD 661 F RFD 91 F RFD 131 F mm 74mm 34mm 11mm 11mm 9mm 1mm 173mm mm 74mm 34mm 11mm 11mm 16mm 1mm 173mm mm 89mm 4mm 11mm 11mm 13mm 1mm 173mm mm 89mm 4mm 11mm 11mm 13mm 1mm 173mm _ 138mm 133mm 63mm 13mm 11mm 18mm 12mm 216mm 17mm _ 243mm 168mm 83mm 13mm 11mm 32mm 13mm 216mm 2mm mm 198mm 93mm 13mm 11mm 3mm 18mm 31mm 2mm 22mm mm 241mm 121mm 13mm 11mm 46mm 18mm 31mm 2mm 22mm 1) Dimension D1 is the opening on the reservoir. 2) Dimension D6 is the bore for the mounting screws. Dimensions are for general information only. Due to constant development and updating of details, we ask that all critical dimensions be verified by requsting a certified print. 11

12 Other Products from HYDAC s Filtration Line Filtration Solutions For Mobile Equipment Although there is great diversity in mobile equipment designs, the common demand in the industry for improved performance has resulted in systems growing in complexity and cost. Precision hydraulic components variable displacement pumps and motors, load control valves, and proportional controls are increasingly applied to enhance machine power, speed and versatility. Higher operating pressures in excess of 6, psi are increasing in usage in order to generate higher force and torque from a smaller and lighter package. As fluid power systems are built to function more precisely at higher pressures, protection against wear and malfunction becomes vital. HYDAC s range of filtration products are designed to provide the necessary level of protection to maintain the efficiency, useful life and safety of high performance fluid power systems. BETAFIT Filter Elements Condensed Filter Catalog Filtration Technology Request catalog # BETAFIT Filter Elements HYDAC manufactures high quality filter elements that are dimensionally similar to other manufacturer's elements and will fit interchangeably into their filter housings. This catalog lists the interchange elements and the models which they replace and is organized by manufacturer. Even When your hydraulic or lube oil system doesn t have a HYDAC filter assembly, it doesn t mean that you cannot benefit from our Betamicron Element technology. The high beta ratios and leading dirt holding capacities of these elements extend service life and provide a greater price to maintenance cost ratio than elements from other manufacturers. Request catalog # 2736 Condensed Filter Catalog This condensed catalog serves as a quick reference guide for selecting HYDAC filters. The models are divided into high, medium, and low pressure groups. Charts then describe each filter in the group. Each model description includes mounting method, maximum operating pressure, maximum flow rates, number of sizes and connection size range, flow path, clogging indicator type, and a brief description of features and benefits. General information about clogging indicators, element types, breathers, and filler breathers is also included. Request catalog # Filtration Technology HYDAC Filter Technology is the result of many years of research, development and performance evaluation both in test stands and actual applications. HYDAC s Filter Division produces a complete range of filters. This range includes in-line, in-tank, inside-tank, direct mount, and manifold mount, modular stacking filters. Also available are duplex models for systems requiring continuous operation. This catalog provides a general overview and photos of HYDAC filter families with information on pressure and flow ratings, and mounting types. It serves as a handy reference to select the appropriate series of filter(s) for the application in need of filtration. More detailed literature that includes specific technical data and dimensioned drawings is available for all models. Request catalog # Copyright 1999 HYDAC TECHNOLOGY CORPORATION - Brochure - Return Line Filters Series RF & RFD # / 7.99 HYDAC TECHNOLOGY CORPORATION 226 City Line Road Bethlehem, PA 1817 Phone (61) Fax (61) powerup@hydacusa.com