HYDAC return line filters type RF are designed to be mounted directly on tank tops. Inline mounting is also possible. Return Line Filter RF Flow rates up to 5, l/min Pressure range up to 25 bar Material: PA 66 / Al / GGG 4 / St E 7.6.2/2.4 Buy: www.valinonline.com Phone: 844-385-399 Email: CustomerService@valin.com
E 7.6.2/2.4 2. TECHNICAL SPECIFICATIONS.. FILTER HOUSING Construction The return line filter consists of a one-piece housing with bolt-on cover plate. A connection for a clogging indicator is standard. The filter is designed to be used in hydraulic tanks to DIN 24339, cover plate Form C..2. FILTER ELEMENTS Original Hydac filter elements guarantee reliable function and protect hydraulic components and systems which are sensitive to contamination from wear and tear. Performance and quality tests according to international standards guarantee reliable operation of the filter. HYDAC filters are validated and their quality is continuously monitored according to the following standards: DIN ISO 294: Verification of collapse / burst resistance DIN ISO 2942: Verification of fabrication integrity and determination of first bubble point DIN ISO 2943: Verification of material compatibility with fluids ISO 3724: Verification of flow fatigue characteristics ISO 3968: Evaluation of pressure drop versus flow characteristics ISO 4572/ISO6889: Multi-pass method for evaluating filtration performance In addition to guaranteeing retention and flow rate characteristics, the filter elements have excellent structural stability. The careful construction and mechanically stable support of the filter media guarantee aboveaverage beta value stability and flow fatigue characteristics of the filter elements. The filter elements are available with the following collapse/burst stability values: Betamicron (BN3HC) : 25 bar Paper (P/HC) : bar Wire mesh (W/HC) : 3 bar Stainless steel fibre (V) : 2 bar Betamicron / Aquamicron (BN/AM) : bar Aquamicron (AM) : bar Note: When changing from the old BN, P, W and V elements to BN3HC, P/HC, W/HC and V/HC elements, the contamination retainer must also be changed..3. CLOGGING INDICATORS Type of indicator VR = return line indicator Pressure setting 2 = 2 bar standard Indicator type code B. = visual C. = electrical D. = visual/electrical Modification number X = the latest version is always supplied Supplementary details V = FPM seals, filter suitable for rapidly biodegradable oils and phosphate ester (HFD-R) LED= 2 light-emitting diodes up to 24 volt L... = light with corresponding voltage (24, 48,, 22 volt) For further details on clogging indicators, please see: Brochure no.: E 7.5../...4. SEALS Choice of Perbunan (NBR) or Viton (FPM) for HFD fluids.5. SPECIAL MODELS AND ACCESSORIES Filter housing for sizes 6, 6 and 33 in GGG 4 (SG iron) Filter housing surface electro-less nickel-plated (only possible on GGG 4) On sizes 25 and over, supplied with cover plate lifting device Mating flanges available for filters from size 33 and above.6. SPARE PARTS See Original Spare Parts List and Maintenance Instructions, brochure no. E 7.3.E./...7. COMPATIBILITY WITH OPERATING FLUIDS DIN ISO 2943: Hydraulic oils H to HLPD to DIN 5524 Lubrication oils to DIN 557, APJ, ACEA, DIN 555, ISO 6743 Compressor oils to DIN 556 Rapidly biodegradable operating fluids to VDMA 24568 HETG, HEES, HEPG Non-flam operating fluids HFC and HFD Operating fluids with high water content (>5 % water content) on request For further details on filter elements: Brochure no.: E 7.2../.. 2. GENERAL Buy: www.valinonline.com Phone: 844-385-399 Email: CustomerService@valin.com Mounting Tank-top filter or inline filter Direction of flow Inlet: side Outlet: vertically down Temperature range - C... + C Other temperature ranges on request Pressure setting of the return line indicator p a = 2 bar -.2 bar (compared to atmospheric pressure) Other pressure settings on request Cracking pressure of bypass valve p O = 3 bar +.5 bar Other cracking pressures on request Hydraulic symbol VR 2 D. X /-L22
3. MODEL CODE (also order example) 3.. COMPLETE FILTER RF BN/HC 33 D L D.X /-L24 Filter type Filter material of element BN/HC Betamicron (BN3HC) AM Aquamicron BN/AM Betamicron /Aquamicron P/HC paper W/HC stainless steel wire mesh V stainless steel fibre Size / Housing material PA 66: 3 Al: 6,, 6, 24, 33 SG iron (GGG4): 66, 95, 3 Welded steel: 25, 4, 52, 65, 78, 5 Operating pressure B = bar (Size 3, 25-5) D = 25 bar (Size 6-3) Type of connection / Connection size Code Type of Filter size connection 3 6 6 24 33 66 95 3 25 4 52 65 78 5 B G ½ C G ¾ E G ¼ G G 2 L SAE DN 5 (2") N SAE DN 8 (3") O SAE DN 9 (3 /2") P SAE DN (4") R DIN DN U DIN DN 25 V DIN DN 5 W DIN DN 2 X DIN DN 25 Y DIN DN 3 Z According to customer specification Filtration rating in µm BN3HC, V : 3, 5,, 2 BN/AM : 3, P/HC :, 2 W/HC : 25, 5,, 2 AM : 4 Type of clogging indicator Y with plastic blanking plug in indicator port A with steel blanking plug in indicator port B with visual indicator for other clogging indicators, C with electrical indicator see brochure no. E 7.5../.. D with combined visual/electrical indicator Type code standard connection 2 size 25 5: outlet for each filter element location spigot with threaded connection for pipe extension 3 size 25 5: common elbow outlet Modification number X the latest version is always supplied Supplementary details V FPM seals, filter suitable for rapidly biodegradable oils and phosphate ester (HFD-R) L... light with corresponding voltage (24V, 48V, V, 22V) only on clogging LED 2 light-emitting diodes up to 24 volt indicators type D KB without bypass valve B. special cracking pressure of the bypass valve (B = bar, B6 = 6 bar) T with tank breather filter (only on size 3) DH cover plate lifting device (only for sizes 25 to 5) OR O-ring groove on the DIN inlet flange (only for sizes 25 to 5) GA mating weld connection flange E 7.6.2/2.4 Buy: www.valinonline.com Phone: 844-385-399 Email: CustomerService@valin.com 3
3.2. REPLACEMENT ELEMENT 33 R BN3HC /-KB Size 3, 6,, 6, 24, 33, 66, 85, 95, 3 Type R Filtration rating in µm BN3HC, V : 3, 5,, 2 BN/AM : 3, P/HC :, 2 W/HC : 25, 5,, 2 AM : 4 Filter material BN3HC, V, BN/AM, P/HC, W/HC, AM Supplementary details V = FPM seals, filter suitable for rapidly biodegradable oils and phosphate ester (HFD-R) W = NBR seals, filter suitable for oil-water emulsions (HFA, HFC) (only for V and W/HC elements) KB = without bypass valve B. = special bypass cracking pressure (B = bar, B6 = 6 bar) 4. FILTER SPECIFICATIONS Filter type Connection Element size Number of elements Weight [kg] with element(s) 3 G ½ 3 R....4 6 G ¾ 6 R....9 G ¾ R.... 6 G ¼ 6 R....8 24 G ¼ 24 R... 2.2 33 G2 33 R... 4. SAE DN 5 (2") 4. 66 SAE DN 8 (3") 66 R... 2. 95 SAE DN 9 (3 /2") 95 R... 4.5 3 SAE DN (4") 3 R... 46. 25 DIN DN 85 R... 3 55.3 DIN DN 25 58.3 4 DIN DN 25 85 R... 5 97.3 DIN DN 5.3 52 DIN DN 25 3 R... 4 9. DIN DN 5 26. 65 DIN DN 5 3 R... 5 75. DIN DN 2 86. 78 DIN DN 2 3 R... 6 87. DIN DN 25 22. 5 DIN DN 25 3 R... 329. DIN DN 3 382. E 7.6.2/2.4 4 Buy: www.valinonline.com Phone: 844-385-399 Email: CustomerService@valin.com
5. FILTER CALCULATION / SIZING The total pressure drop of a filter at a certain flow rate is the sum of the housing p and the element p. The pressure drop can either be determined with the aid of our FSP Filter Sizing Program, which can be ordered via our website www.hydac.com, or by using the following graphs. 5.. p-q HOUSING GRAPHS TO ISO 3968 The housing graphs apply to mineral oil with a density of.86 kg/dm 3 and a kinematic viscosity of 3 mm 2 /s for, in each case, the largest nominal width per size. For turbulent flows, the differential pressure changes proportionally to the density. For laminar flows it changes proportionally to the density and the viscosity. RF 3 RF 25 RF 4.3.25.2.5..5. 5 5 2 25.3.25.2.5..5 RF 52. 5 5 2 25 3 35 4.25.2 RF 6/.5. RF 65.5. 2 3 4 5 6.2.8 RF 6/24 RF 33/66 RF 78.6.4.2..8.6.4.2. 2 3 4 5 6 7.6.4.2..8.6.4.2 RF 95/3. 2 3 4 5 6 7 8 RF 5.25.2 Buy: www.valinonline.com Phone: 844-385-399 Email: CustomerService@valin.com.5..5. 2 4 6 8 2 4 6 E 7.6.2/2.4 5
5.2. p-q GRAPHS - FILTER ELEMENTS The element graphs apply to mineral oil with a kinematic viscosity of 3 mm 2 /s. The pressure drop changes proportionally to the change in viscosity (see Example 5.3.)..9.8.7 Size 3.2 BN3HC Size 3 µm.6.5.4.3 µm.8.2.6.4. 2 3 4 5 6 7 8 9.2 2 4 6.9 V Elements Size 3.2.8 Size 6 Size Size 6 µm µm µm.8.7.6.5.4 µm.6.4.3.2..2 2 4 6 8.9.8.7.6.5.4.3 5 5 2 Size 24 Size 33 µm µm.2.8.6.4.2 Size 6 Size Size 6 µm µm µm E 7.6.2/2.4.2..9.8.7.6.5.4.3.2. 2 3 4 Size 66 Size 85 Size 95 2 3 4 5 6 7 µm µm µm.9.8.7.6.5.4.3.2. 2 3 4 Size 24 Size 33 2 3 4 µm µm 6 Buy: www.valinonline.com Phone: 844-385-399 Email: CustomerService@valin.com
.8.7.6.5.4.3.2. Size 66 Size 85 Size 95 µm µm µm.9.8.7.6.5.4.3.2. P/HC ( µm) Size 3 Size 6 Size Size 6 Size 24 Size 33 2 3 4 5 6 7 5 5 2 25 3 35 4.6 Size 3.25 Size 66 Size 85 Size 95.5.2 Size 3.4.3.2 µm.5...5.6 E 7.6.2/2.4 W/HC 2 3 4 5 6 7 8 9 Size 3.6 3 6 9 2 5 8 2 24 P/HC (2 µm) Size 3.5.5.4 Size 6.4 Size 6.3.2 Size.3.2 Size Size 6 Size 6. Size 24 Size 33. Size 24 Size 33 5 5 2 25 3 35 4 5 5 2 25 3 35 4 45 5.9 Size 66 Size 85 Size 95 Size 3.8.6 Size 66.8.4 Size 85.7.6.5.4.3.2..8.6 Size 95 Size 3.2.4..2 2 3 4 5 6 7 8 9 3 6 9 2 5 8 2 24 Buy: www.valinonline.com Phone: 844-385-399 Email: CustomerService@valin.com 7
5.3. EXAMPLE General p total = p housing + p element viscosity (mm²/s) 3 mm²/s p housing = to be determined from point 5.. p element = element pressure drop at flow rate Q/n and viscosity 3 mm 2 /s according to point 5.2. n = number of elements according to table at Point 4, Filter specifications Example System data: RF with BN3HC element ( µm) viscosity = 46 mm²/s (ISO VG 46 at 4 C) Q = 5 l/min p housing =.3 bar (at Q) p element =.46 bar =.59 bar p total For ease of calculation, our FSP Filter Sizing Program can be ordered from our website www.hydac.com. 6. DIMENSIONS 6.. RF 3 label with model code t4 outlet hole drilled in the tank cover plate only on version with tank breather filter d5 vent screw or clogging indicator inlet E 7.6.2/2.4 Type b b3 d d3 ) d5 d6 d7 h h2 h3 h4 h5 h6 t t2 t4 Size 3 7 38 6 G ½ 78 M4 86 7 27 8 9 4 4 ) threaded connection to ISO 228 8 Buy: www.valinonline.com Phone: 844-385-399 Email: CustomerService@valin.com
6.2. RF 6-24 label with model code outlet vent screw or clogging indicator inlet Type b b3 d d3 2) d5 d6 ) h h2 h3 h4 h5 h6 t Size 6 96 55 8 G ¾ M5 63 88 44 6 2 8 7 Size 96 55 8 G ¾ M5 3 88 44 6 2 45 7 Size 6 26 72 6 G ¼ 35 M6 89 8 54 6 2 2 2 Size 24 26 72 6 G ¼ 35 M6 5 8 54 6 2 8 2 ) mounting hole for screw 2) threaded connection to ISO 228 E 7.6.2/2.4 Buy: www.valinonline.com Phone: 844-385-399 Email: CustomerService@valin.com 9
6.3. RF 33-3 Size 33, 66 Size 95, 3 outlet outlet label with model code vent screw or clogging indicator label with model code vent screw or clogging indicator inlet inlet Type b b3 b5 b6 d d3 d4 d5 d6 ) d7 Size 33 5 85 35 G2 G2 7 M8 77.8 42.9 SAE DN 5 (2") M2 Size 66 96 6.4 6.9 8 SAE DN 8 (3") G3 22 M2 M6 Size 95 255 35 2.7 69.5 28 SAE DN 9 (3½") SAE DN 9 (3½") 29 M6 M6 Size 3 255 45 3.2 77.8 28 SAE DN (4") SAE DN (4") 29 M6 M6 E 7.6.2/2.4 Type h h2 h3 h4 h5 h6 t t2 t4 Size 33 38 3 63 3 2 8 27 27 23 Size 66 243 67 84 3 2 32 28 32 Size 95 25 98 93 3 2 35 22 Size 3 332 24 2 3 2 46 22 Filter connection for SAE flanges to SAE-J 58c / 3 psi ) Mounting hole for screw Buy: www.valinonline.com Phone: 844-385-399 Email: CustomerService@valin.com
6.4. RF 25-5 clogging indicator cover plate lifting device vent G ½ inlet drain G top of tank oil level outlet Type Flanged connection h h2 h3 h4 h5 h6 b b2 d d2 d3 d4 d5 No.of cover plate screws 25 DIN DN 732 578 59 992 496 88 395 24 273 36 8 32 G2 8 DIN DN 25 55 925 3 4 DIN DN 25 738 5 596 94 496 88 355 282 356 45 8 4 G2 2 DIN DN 5 54 995 388 52 DIN DN 25 82 576 67 3 57 98 382 38 46 5 23 46 G3 8 DIN DN 5 65 85 46 65 DIN DN 5 87 65 68 57 98 47 358 58 62 26 572 G3 8 DIN DN 2 72 2 535 78 DIN DN 2 87 72 68 2 57 98 535 358 58 62 26 572 G3 8 DIN DN 25 8 35 65 5 DIN DN 25 87 8 79 36 57 98 72 46 7 84 26 78 G3 8 DIN DN 3 866 46 777 7. NOTE The information in this brochure relates to the operating conditions and applications described. For applications or operating conditions not described, please contact the relevant technical department. Subject to technical modifications. Buy: www.valinonline.com Phone: 844-385-399 Email: CustomerService@valin.com E 7.6.2/2.4