Inline Filter RFLD. Change-Over. Cast Version Flow Rates up to 1300 l/min* Pressure Range 25/40/64 bar With Ball Change-Over Valve E /01.

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1 Change-Over Inline Filter RFLD Cast Version Flow Rates up to 3 l/min* Pressure Range 25/4/64 bar With Ball Change-Over Valve * For higher flow rates, please refer to brochure RFLD Welded Version E 7.9.2/.4

2 . TECHNICAL SPECIFICATIONS.. FILTER HOUSING Construction The filter housings and connecting elements have been designed in accordance with international regulations. The two filter housings are connected by means of a ball change-over valve with negative overlap and single lever operation. All filters size DN 8 and over are fitted with a pressure compensation line and ball shutoff valve. This enables filling to be carried out and the pressure between the two filter sides to be equalised. Connections for venting, draining and for the clogging indicator are part of the standard model. WARNING When using W/HC and P/HC elements please follow the sizing recommendation given on page 5. An electrostatic charge can build up across the element on all inline filters. Ensure that the filters are earthed before use to allow equalisation of potential. E 7.9.2/.4.2. 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 6889: Multi-pass method for evaluating filtration performance of a filter element 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) : 3 bar Betamicron /Aquamicron (BN/AM) : bar Aquamicron (AM) : bar 2

3 .3. CLOGGING INDICATORS Type of indicator VM differential pressure measurement up to 2 bar operating pressure Pressure setting 2 2 bar standard, others on request Indicator type code (options) B. = visual C. = electrical D. = visual/electrical VE. = visual, analogue/electrical Modification number X the latest version is always supplied VM 2 D. X /-L22 Supplementary details -V Viton -LED 2 light-emitting diodes up to 24 Volt -L.. light with corresponding voltage (24, 48,. 22 Volt) -W only for oil/water emulsions HFA, HFC (only possible for "VD" version) 2. GENERAL Mounting Filters must be flexibly mounted and not fixed rigidly to the floor or used as a pipe support. Direction of flow Inlet: above Outlet:below Temperature range - C to + C Pressure setting of differential pressure clogging indicator p a = 2 bar -.2 bar Other pressure settings on request! Cracking pressure of bypass valve p O = 3 bar +.5 bar Other cracking pressures on request! Hydraulic systems Clogging indicators are fitted as standard between the inlet and outlet of the filter. Option: p measurement across the element. 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 Orifice in the pressure compensation line Stand Draining and venting connections with ball valves or other shut-off valves Mating flanges available for all sizes Change-over valve lockable Other sealing materials Venting line with sight glasses visual control.6. SPARE PARTS See Original Spare Parts List and Maintenance Instructions..7. CERTIFICATION AND APPROVAL The filters can be supplied with manufacturer s certificates O and M to DIN 5535, Part 8. Test certificates 3..B to EN 24 and material certificates from the approval authorities Germanischer Lloyd (GL), Lloyd s Register (LR), American Bureau of Shipping (ABS), Bureau Veritas (BV) and Det Norske Veritas (DNV) can be supplied..8. 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 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../.. differential pressure indicator Lubrication systems differential pressure indicator Change-over inline filters, type RFLD, are designed for inline mounting in hydraulic and lubrication systems which operate non-stop. The filter materials can be selected according to the application. E 7.9.2/.4 3

4 3. MODEL CODE (also order example) 3.. COMPLETE FILTER RFLD BN/HC 3 D A S 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 Cast iron GGG4: / 24 / 33 / 5 / 66 / 85 / 95 / 3 / 32 Cast steel GS: 332 / 52 / 662 / 852 / 952 / 32 / 322 Cast stainless steel.458: 53 / 853 Operating pressure D = 25 bar (size 33-3, 853) E = 4 bar (size - 24, 53, ) F = 64 bar (size ) Type of change-over A = ball all nominal widths Type of connection / Connection sizes Material of filter housing: GGG4 ( ), GS + cast stainless steel ( ), GS ( ) E 7.9.2/.4 Type Connection Filter size D G" F G /2 I SAE DN 25 J DIN DN 5 K SAE DN 4 L SAE DN 5 M SAE DN 65 Q DIN DN 8 R DIN DN S SAE/DIN DN 8 T SAE/DIN DN Other nominal widths and ANSI flange version on request! 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 A without clogging indicator, steel blanking plug in indicator port B with visual indicator C with electrical indicator D with combined visual/electrical indicator Type code Modification number X the latest version is always supplied Supplementary details V L lamp with corresponding voltage (24V, 48V, V, 22V) LED 2 light-emitting diodes up to 24 volt KB without bypass valve FPM seals, filter suitable for rapidly biodegradable oils and phosphate ester (HFD-R) B. special cracking pressure of the bypass valve (B = bar, B6 = 6 bar) STV stand SB pressure compensation line SB2 pressure compensation line with 2mm orifice DE differential pressure measurement across the element for other clogging indicators, see brochure no. E 7.5../.. 4

5 3.2. REPLACEMENT ELEMENT Size, 24, 33, 5, 66, 85, 95, 3 (for element size, see point 4. Filter Specifications) 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 = filter suitable for oil-water emulsions (HFA, HFC), NBR seals KB = without bypass valve B. = special bypass cracking pressures (B = bar, B6 = 6 bar) 3 R BN3HC /-KB 5. FILTER CALCULATION / SIZING The total pressure drop of a filter at a certain flow rate is the sum of the housing p (including change-over valve!) and the element p. The pressure drop can either be determined with the aid of our Filter Sizing Program, which can be ordered via our website or by using the following graphs. It must be stressed that all of the technical documentation at HYDAC Filtertechnik always gives the total housing pressure drop, i.e. including change-over valve. 4. FILTER SPECIFICATIONS Filter type Connection Element size Weight [kg] Q max when using with element W/HC and P/HC elements G 7 7 SAE DN 25 R G / SAE DN 4 24 R SAE DN /332 SAE DN 5 33 R DIN DN SAE DN /52 SAE DN 5 5 R /53 DIN DN SAE DN SAE DN R SAE/DIN DN DIN DN SAE DN SAE DN R /853 SAE/DIN DN DIN DN SAE/DIN DN SAE/DIN DN 95 R DIN DN SAE/DIN DN SAE/DIN DN 3 R DIN DN 25 9 No. of elements per side = Housing material: Size/ Pressure Nom. flow Material range rate l/min Spherical cast p = 4 bar - 24 iron GGG 4 p = 25 bar 33-3 Cast steel p = 64 bar GS p = 4 bar Cast stainless p = 4 bar 53 steel.458 p = 25 bar 853 E 7.9.2/.4 5

6 5.. P-Q HOUSING GRAPHS (INCLUDING CHANGE-OVER VALVE!) TO ISO 3968 The housing graphs apply to mineral oil with a density of.86 kg/dm³ and a kinematic viscosity of 3 mm²/s for, in each case, the largest nominal width per size. In this case, the differential pressure changes proportionally to the density. In each case, the p given is for the largest possible flange nominal width. RFLD 5.2. P-Q GRAPHS - FILTER ELEMENTS The element graphs apply to mineral oil with a kinematic viscosity of 3 mm²/s. The pressure drop changes proportionally to the change in viscosity (see Example 5.3.). BN3HC,9.9,8.8,7.7,6.6,5.5,4.4,3.3,2.2,. Reihe BG Size Reihe8 BG Size 24 µm 2µm µm 2µm 2 3 Q in l/min RFLD 24,9.9,8.8 Reihe Size BG 33 Reihe8 Size BG 5 µm RFLD 33 5 RFLD Q in l/min Q in l/min,7.7 µm,6.6 2µm,5.5,4.4 2µm,3.3,2.2, ,9.9 Reihe Size BG 66 Reihe8 Size BG 85,8.8,7.7,6.6 µm µm,5.5 2µm,4.4 2µm,3.3,2.2, Q in l/min RFLD 95 3,9.9,8.8,7.7,6.6,5.5,4.4,3.3 Reihe BG Size 95 Reihe8 BG Size 3 µm µm 2mm 2µm,2.2,. E 7.9.2/.4 Q in l/min

7 V Element W/HC Element,9.9,8.8 Size BG Reihe Size BG Reihe8 24 µm 2µm µm,5.5,45.45,4.4 BG Size,7.7,6.6,5.5,4.4,3.3,2.2, µm,35.35,3.3,25.25,2.2,5.5,., BG Size BG Size BG Size 5 5 BG Size BG Size BG Size Size BG 3 3,9.9 Size Reihe BG 33,8.8 Size Reihe8 BG 5,7.7,6.6,5.5,4.4,3.3,2.2 µm µm 2µm 2µm, ,9.9 Reihe Size BG 66,8.8 Reihe8 Size BG 85,7.7,6.6 µm,5.5 µm,4.4 2µm,3.3 2µm,2.2, P/HC Element ( µm P/HC) Size BG Size BG 24 Size BG 33 Size BG 5,2.2,8.8,6.6,4.4,2.2,.,8.8,6.6,4.4,2.2 (2 µm),9.9,8.8,7.7,6.6,5.5,4.4,3.3,2.2, BG Size BG Size BG Size BG Size 5, Size BG 66 Size BG 85 Size BG 95 Size BG 3 3 Size BG 66/ Size BG Size BG 95 Size BG 3 3,9.9,8.8,7.7,6.6,5.5,4.4,3.3,2.2,. Reihe Size BG 95 Reihe8 Size BG µm µm 2µm 2µm EXAMPLE General viscosity (mm²/s) p total = p housing + p element x 3 mm²/s p housing = to be determined from point 5.. p element = element pressure drop Q at viscosity 3 mm²/s ν according to point 5.2. Example System data: Q = 6 l/min; RFLD 66 with W/HC wire mesh element; viscosity = mm²/s (ISO VG at 4 C) p housing =.33 bar (RFLD 66) p element =.54 bar x mm²/s =.8 bar 3 mm²/s p total = p housing + p element =.5 bar For ease of calculation, our Filter Sizing Program is available and can be ordered via our website E 7.9.2/.4 7

8 6. DIMENSIONS RFLD - 5 connection for clogging indicator shape of cover plate for size 5 inlet outlet threaded/flanged connection drainage clean side G /4 drainage contaminated side RFLD /24 d drainage contaminated side RFLD 33/5 d label with model code flow direction is cut into spindle vent G /2 torque rating for cover plate screws M Dimensions in mm Type Flanged ) Threaded 2) b b 2 b 3 d d 2 h h 2 h 3 h 5 h 7 l M connection connection (Nm) t RFLD DN 25 (") G G ¼ M RFLD 24 DN 4 ( ½") G ½ G ¼ M RFLD 33 DN 4 ( ½") G ½ M RFLD 33 DN 5 (2") G ½ M RFLD 5 DN 4 ( ½") G ½ M RFLD 5 DN 5 (2") G ½ M ) flanged connection to SAE J 58 C (standard pressure range 3 psi) 2) threaded connection to ISO 228 E 7.9.2/.4 8

9 RFLD 66-3 shape of cover plate for sizes 85 connection for clogging indicator inlet outlet drainage contamination side G /2 flanged connection to DIN/SAE drainage clean side G /4 label with model code flow direction is cut into spindle vent G /2 torque rating for cover plate screws M pressure compensation line Dimensions in mm Type Flanged b b 2 b 3 h h 2 h 3 h 5 h 7 l M connection ) (Nm) d t RFLD 66 DN 5 (2") M2 8 RFLD 66 DN 65 (2 ½") M2 8 RFLD 66 DN 8 (3") M2 23 RFLD 85 DN 5 (2") M2 8 RFLD 85 DN 65 (2 ½") M2 8 RFLD 85 DN 8 (3") M2 23 RFLD 95 DN 8 (3") M2 23 RFLD 95 DN (4") M6 23 RFLD 3 DN 8 (3") M2 23 RFLD 3 DN (4") M6 23 ) flanged connection to SAE J 58 C (standard pressure range 3 psi) DIN flange connection to DIN 25/ for PN 25/4 (sealing strip "D" or "E") E 7.9.2/.4 9

10 RFLD 332/52/53 shape of cover plate for RFLD 52/53 vent G 3/4 clogging indicator drainage G drainage G 3/4 M 6 / 24 deep E 7.9.2/.4 approx. label with model code flow direction is cut into spindle

11 RFLD , 853 shape of cover plate for sizes 852/853/32 pressure compensation line vent G 3/4 drainage G 3/4 clogging indicator flow direction is cut into spindle label with model code torque rating for cover plate screws M Dimensions in mm Type Flanged b b 2 b 3 h h 2 h 3 h 5 h 4 l M connection ) (Nm) d t RFLD 662 DN 8 (3") M2 23 RFLD 852 DN 8 (3") M2 23 RFLD 853 DN 8 (3") M2 23 RFLD 952 DN (4") M6 7 RFLD 32 DN (4") M6 7 ) DIN flange connection to DIN 25/ for PN 25/4 (sealing strip "D" or "E") 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. E 7.9.2/.4