APPLICATION Series RFL In-Line Filter Pressures 2 bar Flows to 400 l/min HYDAC RFL In-Line Filters are designed for in-line mounting. These filters can be used in hydraulic, flushing, and for extraction of solid particles from fluids used in industrial process engineering. The standard models are suitable for filtering mineral oils and lubricating oils. For filtration of other fluids, such as water, nonflammable fluids, and synthetic oils, please contact the HYDAC office. PRODUCT FEATURES Models 81 and 101 are made of nodular cast iron and consist of a two part filter housing with bolt-on cast iron lid. The two part construction makes it possible to arrange the inlet and outlet either one above the other on one side or, by turning the base part through 180, on opposite sides of the housing. Inlet/outlet ports for models 81 and 101 comply with SAE 4-bolt flange Code 61 configuration. Model 101 uses filter element (size 100R) allowing maximum standardization in multiple filter element housings. Clogging indicators have no external dynamic seal. High reliability is achieved and magnetic actuation eliminates a leak point. RFL In-Line Filters FILTER ELEMENTS HYDAC RFL filters are available with disposable Betamicron (BNHC) elements having 20 psid collapse pressure and absolute ratings of,, 10 and 20 micron. HYDAC RFL filters are also available with cleanable Wire Screen (W/HC) elements having a 20,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 a 14 collapse pressure and nominal rating of 10 and 20 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 RFL 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.
Model Code: Filter Assembly Filter Type RFL BNHC 81 F A 1 X / V Filter Media BNHC = Betamicron low collapse AM = BN/AM = Aquamicron Betamicron /Aquamicron Disposable P/HC = Polyester W/HC = Stainless Steel Wire Screen V = Stainless Steel Fiber Cleanable Size 81 = inlet & outlet with 1 (080R) element 101 = 4 inlet & outlet with 1 (100R) element Type of Connection F = flange connection Filtration Rating in µm Betamicron Absolute Filtration Low Collapse 10 Rating (BNHC) 20 ßx 200 Betamicron / 10 Aquamicron ßx 200 40 Aquamicron ßx 100 10 Polyester 20 (P/HC) Metal Fleece Nominal 10 (V) Filtration 20 Rating 2 Wire Screen 74 (W/HC) 149 Type of Clogging Indicator A = no indicator Indicator Model Codes B = visual (auto-reset) VM2B.1 BM = visual (manual-reset) VM2BM.1 C = electric switch VM2C.0 D = electric switch and light VM2D.0/L Type Code 1 Modification Number X filter is always supplied in the latest version Seals (omit) = Buna N (NBR)(standard) V = Fluorocarbon (FKM) EPR = Ethylene Propylene (EPDM) Bypass Valve Cracking Pressure (omit) = 4 psid ( 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 application) B0.2 = psid (0.2 bar) (pump inlet) Supplementary SO 10H = Modification of BNHC Elements for Phosphate Ester Fluids Model Codes Containing Red are non-stock items Consult Factory For Delivery Lead Times For All Standard Products 2
Model Code: Replacement Elements Size 080 = RFL 81 100 = RFL 101 Type R Filtration Rating 00 = µm Absolute 00 = µm Betamicron Filtration 010 = 10 µm Low Collapse Rating (BNHC) 020 = 20 µm ßx 200 080 R 00 BNHC / V 00 = µm Betamicron / 010 = 10 µm Aquamicron ßx 200 040 = 40 µm Aquamicron ßx 100 010 = 10 µm Polyester 020 = 20 µm (P/HC) 00 = µm 00 = µm Metal Fleece Nominal 010 = 10 µm (V) Filtration 020 = 20 µm Rating 02 = 10 µm Wire 074 = 74 µm Screen 149 = 149 µm (W/HC) Type of Media BNHC = Betamicron BN/AM = Betamicron / Aquamicron AM = Aquamicron P/HC = Polyester W/HC = Stainless Steel Wire Screen Seals (omit) = Nitrile (NBR) (standard) V = Fluoro Rubber (FKM) EPR = Ethylene Propylene (EPDM) Bypass Valve Cracking Pressure (omit) = 4 psid ( 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 B0.2 = psid (0.20 bar) - Suction line Supplementary SO 10H = Modification of BNHC Elements for Phosphate Ester Fluids 1) Betamicron/Aquamicron Combination Absolute and Water Removal Elements available in Size 100 2) Aquamicron Water Removal Elements Available in Size 80 and 100. Model Codes containing RED are non-stock items Consult Factory For Delivery Lead Times For All Standard Products
Engineering Data: Design In-line Filter Mounting Method Support by means of pipe clamps Connections RFL 81 F SAE-48 Flange (code 61) RFL 101 F SAE-64 flange (code 61) Direction of Flow Inlet and outlet are horizontal and on opposite side (180 apart) of the housing. As an option, inlet and outlet can both be positioned on the front of the housing. Element Collapse Betamicron BNHC: 20 psid / 17 bar Pressure Ratings Betamicron /Aquamicron BN/AM: 14 psid / 10 bar (ISO 2941) Aquamicron AM: 14 psid / 10 bar Wire Screen W/HC: 20 psid / 17 bar Polyester P/HC: 14 psid / 10 bar Metal Fleece V: 20 psid / 17 bar Fluid Temperature Range -1 F to +20 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). Fluid Compatibility Compatible with petroleum oils, water glycols, oil/water (ISO 294) emulsions, high water base fluids and synthetic fluids compatible with Fluoro Rubber or EPR seals. Element Flow Fatigue Resistance Filter medium is constructed to achieve flow fatigue resistance. (ISO 724) Contact HYDAC office for information. Trip Pressure of Indicator P = 29 psi / 2 bar - 10% (standard) P = 72 psi / bar - 10% (optional) Cracking Pressure of Bypass Valve P = 4 psi / bar - 10% (standard) P = 87 psi / 6 bar - 10% (optional) Weights Model with element without element lbs. kg. lbs. kg. RFL 81 F. 2.4.1 2. RFL 101 F 10.8 4.9 10.4 4.7 Filtration Efficiency Multi-pass Filtration Efficiency Ratings to ISO 472 for Betamicron Elements Betamicron Absolute Terminal P Across Element Rating Filter Element 00BNHC ß 200 72 psi 00BNHC ß 200 72 psi 010BNHC ß 10 200 72 psi 020BNHC ß 20 200 72 psi 4
Filtration Efficiency: Multi-Pass Filtration Efficiency Ratings to ISO 472 for Betamicron Elements For all micron ratings (,, 10, & 20) Betamicron Elements Absolute Filtration Rating = ßx 200 Terminal P Across Element = 72 psid ( bar) Housing Curves: The housing curve is based on test results using mineral oil with a specific gravity of 0.86. Differential pressure increases in proportion to specific gravity of applicable fluid. P Housing = P Chart x Actual Specific Gravity 0.86 RFL 81 HOUSING RFL 101 HOUSING P in bar 0. 0.4 0. 0.2 0.1 P in psid 8 7 6 4 2 1 P in bar 0. 0.4 0. 0.2 0.1 P in psid 8 7 6 4 2 1 0 0 2 0 7 100 12 10 17 200 22 0 0 0 100 10 200 20 27 00 Q in gpm Q in gpm 0 100 200 00 400 00 600 700 800 900 0 200 400 600 800 1000 1200 1400 Q in l/min Q in l/min Bypass Valve Curve: Curve shown is applicable for mineral oil with a specific gravity of 0.86. Differential pressure increases in proportion to the specific gravity of fluid. Valve = Curve x Actual Specific Gravity 0.86 P in bar 6 4 2 1 P in psid 100 80 60 40 20 080R... 100R... 0 0 0 100 10 200 20 00 0 Q in gpm 0 200 400 600 800 100012001400 Q in l/min
Element P Calculations All element curves are based on test results using mineral oil with a kinematic viscosity of 141 SUS and a specific gravity of 0.86. The differential pressure across the element changes proportionally to the viscosity and specific gravity. P Element = K Factor x Flow (gpm) x Actual Specific Gravity Actual Viscosity (SUS) x 0.86 141 SUS Betamicron K Factors for...r...bnhc Elements Size µm µm 10µm 20µm 080R 0.09271 0.0767 0.06647 0.0988 100R 0.0616 0.04891 0.04414 0.02648 Metal Fiber K Factors for...r...v Elements Size µm µm 10µm 20µm 080R 0.0490 0.012 0.0260 0.01482 100R 0.02744 0.0219 0.01482 0.009 Polyester K Factors for...r...p/hc Elements Size 10µm 20µm 080R 0.0069 0.0029 100R 0.0049 0.00220 Wire Screen K Factors for...r...w/hc Elements Size 2, 74, 149 µm 080R 0.0084 100R 0.00274 Betamicron /Aquamicron K Factors for...r...bn/am Elements Size µm 10µm 100R 0.087871 0.048 Aquamicron Element Size Recommendations Size Recommended Flow Rate Water Retention Capacity Cw at P = 6 psi (2. bar) with an oil Viscosity of 141 SUS (0mm 2 /sec) 080 9.2 gpm ( l/min) advised 0.77 quarts (70 cm ) 7.6 gpm (286 l/min) max. 0. quarts (20 cm ) 100 14. gpm (4 l/min) advised 1.18 quarts (1120 cm ) 11.4 gpm (47 l/min) max. 0.8 quarts (790 cm ) Water Removal Needs The amount of water that can be removed from a system depends on the total volume of oil and percentages of saturated and unsaturated water expressed in parts per million, or PPM, where 1,000 PPM = 0.1%. Water content may be established by evaluating a representative sample fluid. HYDAC s Fluid Analysis Program provides information on water content, as well as the level of particulate contamination. Example based on 1,000 Gallon tank Water Content: PPM Gallons Quarts Total 1,000 1.0 4.0 Saturated 00 0. 1.2 Unsaturated 700 0.7 2.8 Three size 100 elements would remove the 2.8 quarts of free and emulsified water. 6
Dimensions: RFL 81 and 101 name plate B8 B7 max (with indicator installed) H4 Clearance Required for Element Removal B B6 B6 vent plug B4 B2 D2 x T1 B1 B H H H2 inlet ø D max drain (180 design) D1 SAE flange connection (code 61) inlet/outlet D drain (standard design) H1 D4 drain outlet turned 180 on request outlet standard outlet connection Model B1 B2 B B4 B B6 B7 B8 D1 D2 RFL 81 F RFL 101 F 4.19 2.44 6.10.1 8.98.24 7.09 7.6.00 /8-11 UNC 106mm 62mm 1mm 1mm 228mm 1mm 180mm 192mm ø 76mm.1.06 6.8 6.10 10.00.6 7.68 8.78 4.00 /8-11 UNC 10mm 78mm 162mm 1mm 24mm 14mm 19mm 22mm ø 102mm Model D D4 D H1 H2 H H4 H T1 RFL 81 F G 1/2 G 1/4 6.77 2.66 9.06 8.27 16.9 24.9 1.19 ø 172mm 68mm 20mm 210mm 40mm 620mm 0mm RFL 101 F G 1/2 G 1/4 7.87.19 9.84 9.7 19.68 28. 1.19 ø 200mm 81mm 20mm 28mm 00mm 720mm 0mm Dimensions are in inches/millimeters. Dimensions are for general information only. Due to constant development and updating of details, we ask that all critical dimensions be verified by requesting a certified print. 7
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 6,000 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 # 0206974 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 # 020706 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 # 02068118 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 # 02068117 Copyright 2000 HYDAC TECHNOLOGY CORPORATION - Brochure - In-line Filters Series RFL #0207070 / 07.00 HYDAC TECHNOLOGY CORPORATION 2260 City Line Road Bethlehem, PA 18017 Phone (610) 266-0100 Fax (610) 264-40 www.hydacusa.com powerup@hydacusa.com