3/2, 4/2 and 4/3 directional valves, internally pilot operated, externally pilot operated

Transcription

1 3/2, /2 nd /3 directionl vlves, internlly pilot operted, externlly pilot operted RE 275/08.08 Replces: /38 ypes WEH nd WH Sizes 0 to 32 Component series ; ; 7 Mximum operting pressure 350 r [507 psi] Mximum flow 00 l/min [290 US gpm] H le of contents Content ge Fetures Ordering code 2, 3 Spool symols to 8 Function, section 9 to ilot oil supply 2, 3 echnicl dt to Switching times Chrcteristic curves, performnce limits 7 to 2 Unit dimensions 27 to 33 Stroke djustment, ttchment options 3, 35 Switching time djustment 3 ressure reducing vlve D3 3 re-lod vlve 37 Fetures 2 types of ctution: Electrohydrulic (type WEH) Hydrulic (type WH) For suplte mounting orting pttern to ISO 0 nd NF 3.5. R2 For supltes to dt sheets RE 5 to RE 0 (seprte order), see pge 32 Spring- or pressure-centering, spring end position or hydrulic end position Wet-pin DC or C voltge solenoids, optionl Mnul override, optionl Electricl connection s individul or centrl connection, see RE 2378 nd RE 0800 Switching time djustment, optionl re-lod vlve in chnnel of min vlve, optionl Stroke djustment of min spool, optionl Stroke djustment nd/or end position control, optionl Inductive position switches nd proximity sensors (contctless), see RE 2830 Informtion on ville spre prts:

2 2/38 osch Rexroth G Hydrulics WEH /WH RE 275/08.08 Ordering code Up to 280 r = No code Up to 350 r = H 3-wy design = 3 -wy design = ypes of ctution Electrohydrulic = WEH Hydrulic = WH Size NG0 = 0 NG = NG25 (type W.H 22.7/ ) = 22 NG25 (type W.H 25./ ) = 25 NG32 = 32 Spool return in min vlve y springs = No code Hydrulic ) = H For spool symols, see pges nd 5 Component series 0 to 9 NG0 = (0 to 9: unchnged instlltion nd connection dimensions) 0 to 9 NG25 (W.H 25.) nd NG32 = (0 to 9: unchnged instlltion nd connection dimensions) 70 to 79 NG (series 72 or higher) nd NG25 (W.H 22.) = 7 (70 to 79: unchnged instlltion nd connection dimensions) Spool return in pilot vlve with 2 spool positions nd 2 solenoids Only possile with spools,, C, D, K, Z nd hydrulic spool return in min vlve: With spring return = No code Without spring return = O Without spring return with detent 2) = OF ilot vlve 2) High-performnce vlve (RE 2378) = E DC voltge 2 V 2) = G2 C voltge 230 V 50/0 Hz 2) = W230 For further voltges, frequencies nd electric dt, see dt sheet RE 2378 Without mnul override = No code With mnul override = N With conceled mnul override = N9 Externl pilot oil supply, externl pilot oil drin 3) = No code Internl pilot oil supply, externl pilot oil drin 3; ) = E Internl pilot oil supply, internl pilot oil drin ) = E Externl pilot oil supply, internl pilot oil drin 3) = (for type WH only No code possile!) (Vrints E nd for 3-position vlve, pressure-centering only possile, if p St 2 x p nk + p St min!) p St = pilot pressure p St min = pilot pressure, min, p nk p ö = tnk pressure = crcking pressure Stndrd types nd components re shown in the ES (stndrd price list). For explntion of footnotes, see pge 3!

3 RE 275/08.08 WEH /WH Hydrulics osch Rexroth G 3/38 * No code = QMG2 = QMG2 = QMG2 = QM0G2 = No code = V = No code = D3 5) = Further detils in cler text Sel mteril NR sels FKM sels (other sels on request) ttention! Oserve comptiility of sels with hydrulic fluid used! Without pressure reducing vlve With pressure reducing vlve re-lod vlve (not for NG0) 2; 5) No code = Without pre-lod vlve,5 = With pre-lod vlve (p ö =.5 r [5 psi]) No code = 08 = 0 = 2 = 5 = 20 = 25 = hrottle insert 2) Without throttle insert hrottle Ø 0.8 mm [0.035 inch] hrottle Ø.0 mm [0.039 inch] hrottle Ø.2 mm [0.072 inch] hrottle Ø.5 mm [0.059 inch] hrottle Ø 2.0 mm [ inch] hrottle Ø 2.5 mm [0.098 inch] Stroke djustment For ordering code, see pges 3 nd 35 Spool position monitoring Without position switch Monitored spool position Monitored spool position Monitored spool positions nd Monitored rest position For further detils, see RE 2830 Electricl connection 2) K ) = Without mting connector, individul connection with component plug to DIN EN For further electricl connections, see RE 2378 nd RE 0800 No code = S = S2 = Without switching time djustment Switching time djustment s meter-in control Switching time djustment s meter-out control ) 2 spool positions (hydrulic end position): Spools C, D, K, Z, only 3 spool positions (hydruliclly centered): Only with NG, NG25 (type W.H 25 ) nd NG32 2) Only with electrohydrulic ctution 3) ilot oil supply or drin externl: In the cse of NG0, vrint SO30 must e provided for the use of sndwich pltes. Code SO30 must e entered t the end of the type code (sndwich plte). Mke sure tht the permissile operting prmeters of the pilot oil re not exceeded (see RE 2378)! Mximum pilot pressure: lese oserve pge! ) Internl pilot oil supply (version E nd E ): Minimum pilot pressure: lese oserve pge 5! o void impermissily high pressure peks, throttle insert 0 must e provided in the port of the pilot vlve (see pge 3). In conjunction with version H-, pressure reducing vlve D3 must e provided dditionlly. 5) Only in conjunction with throttle insert 0 ) Mting connectors, seprte order, see RE 2378

4 /38 osch Rexroth G Hydrulics WEH /WH RE 275/08.08 Spool symols: 2 spool positions = ) = ) = C = = D = K = Z ) Only for NG0 nd 25 (W.H 22.) If operting pressure > tnk pressure, port must e used s lekge port! 2) Exmple: Symol E with ctuting side ordering code..e.. 3) Spool symol S for NG only Ordering code ype of ctution Spool symol Spool return Hydrulic ype WH Electrohydrulic ype WEH../..,,, C, D, K, Z..H../..,,..H../O..H../OF,../..,,..H../..

5 RE 275/08.08 WEH /WH Hydrulics osch Rexroth G 5/38 Spool symols: 3 spool positions = E 2) = Q = F = R = G = S 3) = H = = J = L = M = U = V = W = For explntion of footnotes, see pge! Ordering code ype of ctution Spool symol ctuting side Spool return Hydrulic ype WH Electrohydrulic ype WEH../.., 0, 0. 0 E, F, G, H, J, L, M, Q, R, S,, U, V, W. 0..H../.., 0, 0 H. 0 H. 0

6 /38 osch Rexroth G Hydrulics WEH /WH RE 275/08.08 Vlve with spring end position Vlve with hydrulic end position = externl; = externl ype WEH /.. ype WEH. H../... ype WEH. H../O... ype WEH. H../OF...,,,,,,,, = internl; = externl ype WEH / E ype WEH. H../ E ype WEH. H../O E ype WEH. H../OF E,,,,,,,, = internl; = internl ype WEH / E ype WEH. H../ E ype WEH. H../O E ype WEH. H../OF E,,,,,,,, Symols for vlves with 2 spool positions

7 RE 275/08.08 WEH /WH Hydrulics osch Rexroth G 7/38 Symols for vlves with 2 spool positions Vlve with spring end position Vlve with hydrulic end position ype WEH / ype WEH. H../ ype WEH. H../O ype WEH. H../OF = externl; = internl,,,,,,,, Symols for vlves with 3 spool positions Vlve with spring-centered zero position ype WEH / Vlve with pressure-centered zero position only NG, 25 (type W.H 25./ ) nd 32 ype WEH. H../ = externl; = externl 0,, 0 0,, L 0 L ype WEH / E ype WEH. H../ E = internl; = externl 0,, 0 0,, L 0 L

8 8/38 osch Rexroth G Hydrulics WEH /WH RE 275/08.08 Symols for vlves with 3 spool positions = internl; = internl Vlve with spring-centered zero position ype WEH / E 0,, 0 Vlve with pressure-centered zero position nur NG, 25 (ype W.H 25./ ) nd 32 3-position vlves, pressure-centered, preferly with externl pilot oil supply nd/or drin ( No code, E ) For the preconditions for internl pilot oil supply nd/or drin ( E, ), see pges nd 5. ype WEH / = externl; = internl 0,, 0

9 RE 275/08.08 WEH /WH Hydrulics osch Rexroth G 9/38 Function, section: ype WEH Directionl vlves of type WEH Vlves of type WEH re directionl spool vlves with electrohydrulic ctution. he control the strt, stop nd direction of flow. hese directionl vlves siclly consist of the min vlve with housing (), min control spool (2), one or two return springs (3.) nd (3.2), s well s pilot vlve () with one or two solenoids (5.) nd/or (5.2). Min control spool (2) in the min vlve is held in the zero or initil position y springs or through pressuriztion. In the depressurized condition, the two spring chmers () nd (8) re pressureless connected to the tnk vi pilot vlve (). he pilot vlve is supplied with pilot oil vi pilot line (7). he supply cn e provided internlly or externlly (externlly vi port ). When the pilot vlve is operted, e.g. solenoid, pilot spool (0) is pushed to the left nd spring chmer (8) is therefore pressurized to pilot pressure. Spring chmer () remins pressureless. he pilot pressure cts on the left side of min control spool (2) nd shifts the ltter ginst spring (3.). In the min vlve, port is consequently connected to nd to. When the solenoid is de-energized, pilot spool (0) returns to its strting position (except for impulse spool). Spring chmer (8) is unloded to the tnk. he pilot oil is drined internlly (vi chnnel ) or externlly (vi chnnel ). n optionl mnul override (9) llows pilot spool (0) to e moved without energiztion of the solenoid. Note! Return springs (3.) nd (3.2) in spring chmers () nd (8) hold the min control spool (2) in the centrl position, even if the vlve is rrnged, for exmple, verticlly. ilot oil supply (sections nd ), see pges 2 nd 3.

10 0/38 osch Rexroth G Hydrulics WEH /WH RE 275/08.08 Function, section: ype WH Directionl vlves of type WH Vlves of type WH re directionl spool vlves with hydrulic ctution. hey control the strt, stop nd direction of flow. hese directionl vlves siclly consist of vlve housing (), min control spool (2), one or two return springs (3.) nd (3.2) on vlves with spring return or spring centering, s well s reconnection plte (). he min control spool (2) is ctuted directly through pressuriztion. Min control spool (2) is held in the zero or initil position y springs or through pressuriztion. he pilot oil is supplied nd drined externlly (see pge 2). /3 directionl vlve with spring centering of the pilot spool With this version, min control spool (2) is held y two return springs (3.) nd (3.2) in the zero position. he two spring chmers () nd (8) re connected vi reconnection plte () to ports nd. When min control spool (2) is pressurized to pilot pressure on one of the two front fces, it is pushed to the operted position. he connections within the vlve re estlished s required. When the pressurized spool is depressurized, the spring on the opposite side cuses the spool to e returned to the zero or initil position. ilot oil supply (sections nd ), see pges 2 nd 3.

11 RE 275/08.08 WEH /WH Hydrulics osch Rexroth G /38 Function, section: ype WEH H L /3 directionl vlves with pressure-centering of the min control spool, type WEH H Min control spool (2) in the min vlve is held in the zero position through pressuriztion of the two spool fces. Centering ushing (2) is supported within the housing nd holds the spool in position. y depressuriztion of one spool fce, min control spool (2) is rought to the operted position. he unloded spool re displces the returning pilot oil vi the pilot vlve into chnnel (externl). Note! In this vrint, springs (3.) nd (3.2) do not ssume return function. he hold the horizontlly instlled min control spool (2) in the centrl position when de-pressurized.

12 2/38 osch Rexroth G Hydrulics WEH /WH RE 275/08.08 ilot oil supply NG0 Section NG Section NG25 (type W.H 22.7/ ) NG25 (type W.H 25./ ) 3 Section 2 Section 2 Section 3 5 NG32 Section 3 2 Ilot oil supply ilot oil drin Externl: 2 closed Externl: closed internl: 2 open Internl: open For further detils nd explntions of items, see next pge.

13 RE 275/08.08 WEH /WH Hydrulics osch Rexroth G 3/38 ilot oil supply ype WH he pilot oil is supplied nd drined externlly vi chnnels nd. ype WEH he pilot oil is supplied externlly - vi chnnel - from seprte pressure supply. he pilot oil is drined externlly - vi chnnel - to the tnk. ype WEH E he pilot oil is supplied internlly from chnnel of the min vlve. (See pge 5, footnotes 8) nd 9) ) he pilot oil is drined externlly - vi chnnel - to the tnk. ort in the suplte is plugged. 3 ilot vlve Min vlve 5 Cover hrottle insert ightening torques M for cover mounting screws: NG: 35 Nm [25.8 ft-ls]; NG25: 8 Nm [50.2 ft-ls] ightening torques M for mounting screws of the pilot vlve: NG0 to 32: 9 Nm [. ft-ls] ype WEH E he pilot oil is supplied internlly from chnnel of the min vlve. he pilot oil is drined internlly - vi chnnel - to the tnk. orts nd in the suplte re plugged. ype WEH he pilot oil is supplied externlly - vi chnnel - from seprte pressure supply. he pilot oil is drined internlly - vi chnnel - to the tnk. ort in the suplte is plugged. lug screw M, 3 /F pilot oil drin 2 lug screw M, 3 /F pilot oil supply hrottle insert he use of throttle insert () is required, if the pilot oil supply in chnnel of the pilot vlve is to e restricted (see elow). hrottle insert () is to e instlled in chnnel of the pilot vlve. 3 ttention! he pilot oil supply my only e chnged y uthorized specilists or in the fctory! Externl pilot oil supply or drin : For NG0, version SO30 must e provided for the use of sndwich pltes. Code SO30 must e entered t the end of the type designtion (sndwich plte). Mke sure tht the permissile mximum prmeters of the pilot vlve re not exceeded (see RE 2378)! Mximum pilot pressure: lese oserve pge! Internl pilot oil supply (versions E nd E ): Minimum pilot pressure: lese oserve pge 5! o void impermissily high pressure peks, throttle insert 0 must e provided in port of the pilot vlve (see ove). In conjunction with version H-, pressure reducing vlve D3 must e provided dditionlly (see pge 3).

14 /38 osch Rexroth G Hydrulics WEH /WH RE 275/08.08 echnicl dt (for pplictions outside these prmeters, plese consult us!) Generl Sizes NG 0 25 W.H 22 Weight, c. Vlve with one solenoid kg [ls]. [.] Vlve with two solenoids, spring-centered Vlve with two solenoids, pressure-centered Vlve with hydrulic ctution (type WH ) kg [ls].8 [5.0] kg [ls].8 [5.0] kg [ls] 5.5 [2.] 8.5 [8.7] 8.9 [9.] 8.9 [9.] 7.3 [.].5 [25.3].9 [2.2].9 [2.2] 0.5 [23.] 25 W.H [38.8] 9.0 [.9] 9.0 [.9].5 [3.] [38.8].0 [90.].0 [90.] 39.5 [87.] Switching time djustment kg [ls] 0.8 [.8] 0.8 [.8] 0.8 [.8] 0.8 [.8] 0.8 [.8] ressure reducing vlve kg [ls] 0. [0.9] 0. [0.9] 0. [0.9] 0. [0.9] 0. [0.9] Instlltion position Optionl; horizontl in the cse of vlves with hydrulic spool return H nd spool symols,, C, D, K, Z, mient temperture rnge C [ F] 30 to +50 [ 22 to +22] Storge temperture rnge C [ F] 20 to +70 [ to +58] Surfce protection (vlve ody) int-coting, lyer thickness mx. 00 μm Hydrulic Mximum operting pressure orts,, ort ilot oil drin externl ype WEH r [psi] 280 [0] ype H-WEH r [psi] 350 [507] ype WEH r [psi] 280 [0] ype H-WEH 35 [58] 280 [0] 350 [507] 250 [32] 250 [32] 280 [0] 350 [507] 250 [32] 250 [32] 280 [0] 350 [507] 250 [32] 250 [32] 280 [0] 350 [507] 250 [32] 250 [32] ilot oil drin internl ) r [psi] 20 [30] with DC voltge; 0 [2320] with C voltge ort Externl pilot oil drin r [psi] 20 [30] with DC voltge; 0 [2320] with C voltge ype WH r [psi] 250 [32] ype H-WH r [psi] 35 [58] 250 [32] 35 [58] 20 [30] 270 [39] 250 [32] 35 [58] 250 [32] 35 [58] Hydrulic fluid 2) Minerl oil (HL, HL) to DIN 552 3) ; fst io-degrdle hydrulic fluids to VDM 258 (see lso RE 9022); HEG (rpe seed oil) 3) ; HEG (polyglycols) ; HEES (synthetic esters) ) ; other hydrulic fluids on request Hydrulic fluid temperture rnge C [ F] 30 to +80 [ 22 to +7] (NR sels) 20 to +80 [ to +7] (FKM sels) Viscosity rnge mm 2 /s [SUS] 2,8 to 500 [35 to 2320] ermissile mx. degree of contmintion of the hydrulic fluid - clenliness clss to ISO 0 (c) Clss 20/8/5 5) Mximum pilot pressure ) r [psi] 250 [32] 250 [32] 20 [30] 250 [32] 250 [32]

15 RE 275/08.08 WEH /WH Hydrulics osch Rexroth G 5/38 echnicl dt (for pplictions outside these prmeters, plese consult us!) Hydrulic Size NG 0 25 W.H 22 Minimum pilot pressure (see lso chrcteristic curves on pge 7) ilot oil supply externl, pilot oil supply internl (with spools: D, K, E, J, L, M, Q, R, U, W) 3-position vlve, spring-centered ype H-WEH r [psi] 0 [5] [203] 2,5 [8] ype WEH r [psi] 0 [5] [203] 0,5 [52] 25 W.H [88] 8,5 [23] 3 [88] 8,5 [23] 3-position vlve, pressure-centered r [psi] [203] 8 [2] 8,5 [23] 2-position vlve with spring ype H-WEH r [psi] 0 [5] [203] [203] 3 [88] 0 [5] end position ype WEH r [psi] 0 [5] [203] [59] 3 [88] 0 [5] 2-position vlve with hydrulic end position r [psi] 7 [0] [203] 8 [] 8 [] 5 [72] ilot oil supply internl (with spools C, F, G, H,,, V, Z, S 7) ) r [psi].5 [5] 8).5 [5] 9).5 [5] 9).5 [5] 9).5 [5] 9) ) With 3-position vlve, pressure-centering is only possile, if p St 2 x p nk + p St min. 2) he ignition temperture of the process nd operting medium used must e higher thn the mximum solenoid surfce temperture. 3) Suitle for NR nd FKM sels ) Suitle only for FKM sels 5) he clenliness clsses specified for components must e dhered to in hydrulic systems. Effective filtrtion prevents mlfunction nd, t the sme time, prolongs the service life of components. For the selection of filters, see dt sheets RE 50070, RE 5007, RE 5008, RE 5008, RE nd RE ) Internl pilot oil supply: 8) With symols C, F, G, H,,, V, Z, n internl pilot oil supply is only possile, if the flow from to in the centrl position (with 3-position vlve) or while pssing the centrl position (with 2-position vlve) is so high tht the pressure differentil from to reches vlue of t lest.5 r [9 psi]. 9) For spools C, F, G, J, H,,, V, Z, S 7) y mens of prelod vlve (not NG0) or correspondingly greter flow. (For the estlishment of the required flow, see chrcteristic curves re-lod vlve on pge 37.) In the cse of higher pilot pressure, pressure reducing vlve D3 must e used. In conjunction with version H-, pressure reducing vlve D3 must e provided dditionlly. (If not used, pilot pressure = operting pressure in the port) Externl pilot oil supply: In conjunction with version H-, the dherence to the mximum pilot pressure must e ensured y tking suitle mesures (e.g. instlltion of pressure relief vlve to protect the seprte pilot oil circuit)! 7) Spool S only for NG

16 /38 osch Rexroth G Hydrulics WEH /WH RE 275/08.08 echnicl dt (for pplictions outside these prmeters, plese consult us!) Hydrulic Size NG 0 25 W.H 22 ilot oil volume for switching process 3-position vlve, spring-centered cm 3 [inch 3 ] 2.0 [0.2] 2-position vlve cm 3 [inch 3 ].08 [0.29] 3-position vlve, pressure-centered from zero position to spool position from spool position to zero position from zero position to spool position from spool position to zero position 5.72 [0.39].5 [0.99] ype WH cm 3 [inch 3 ] 2.83 [0.73] ype WEH cm 3 [inch 3 ] 2.83 [0.73] ype WH cm 3 [inch 3 ] 5.72 [0.39] ype WEH cm 3 [inch 3 ] 2.9 [0.77] ype WH cm 3 [inch 3 ] 5.72 [0.39] ype WEH cm 3 [inch 3 ] 5.72 [0.39] ype WH cm 3 [inch 3 ] 8.55 [0.522] ype WEH cm 3 [inch 3 ] 2.83 [0.73] 7. [0.] 5.28 [0.932] 25 W.H 25.2 [0.8] 28. [.733] 7.5 [0.3] 7.5 [0.3].8 [0.85] 7.0 [0.27].8 [0.85].5 [0.83] 9.88 [.23] 5.73 [0.39] [.79] 58.8 [3.588]. [0.879]. [0.879] 29. [.79] 5. [0.92] 29. [.79] 29. [.79] 3.8 [2.73]. [0.879] ilot oil flow for shortest switching time, c. l/min [US gpm] 35 [9.2] 35 [9.2] 35 [9.2] 35 [9.2] 5 [.9] Switching times (= closing of contct on the pilot vlve until the control lnd strts to open in the min vlve nd chnge of spool stroke y 95%) ilot pressure r [psi] 70 [05] 20 [30] 250 [32] Spring NG0 Without throttle insert ms 0 to 0 0 to 0 20 to 30 With throttle insert ms 0 to to to 30 NG Without throttle insert ms 50 to 80 0 to 0 50 to 80 With throttle insert ms 0 to to to 80 NG25 (W.H 22) Without throttle insert ms 0 to 70 0 to 0 50 to 70 With throttle insert ms 0 to 0 80 to 0 50 to 70 NG25 (W.H 25) Without throttle insert ms 70 to to to 30 With throttle insert ms 200 to to to 30 NG32 Without throttle insert ms 80 to to 00 0 to 0 Notes! With throttle insert ms 20 to to to 0 he switching times re mesured in ccordnce with ISO 03 with HL, ϑ oil = 0 C ±5 C [0 F ±9 F]. t different oil tempertures, devitions re possile! he switching times were estlished using DC voltge solenoids. hey re reduced y c. 20 ms when C voltge solenoids re used. ON OFF he de-energiztion of the solenoid genertes voltge peks, which cn e prevented y instlling suitle diodes. When pressure reducing vlve D3 is used, the switching times increse y c. 30 ms. he switching times were estlished under idel conditions nd cn devite within the system depending on the operting conditions.

17 RE 275/08.08 WEH /WH Hydrulics osch Rexroth G 7/38 Free flow cross-sections in zero position with spools Q, V nd W Size NG 0 25 W.H 22 Spool Q ; mm 2 [inch 2 ] 3 [0.02] Spool V ; mm 2 [inch 2 ] 3 [0.02] ; mm 2 [inch 2 ] 3 [0.02] Spool W ; mm 2 [inch 2 ] 2, [0.00] 32 [0.05] 32 [0.05] 32 [0.05] [0.009] 78 [0.2] 73 [0.3] 8 [0.3] 0 [0.05] 25 W.H [0.29] 83 [0.29] 83 [0.29] [0.022] [0.2] 73 [0.3] 8 [0.3] 20 [0.03] Chrcteristic curves (mesured with HL, ϑ oil = 0 C ±5 C [0 F ±9 F]) Minimum pilot pressure in dependence on tnk pressure ilot pressure in r [psi] [00] [90] [80] [70] [0] [50] [0] [30] [20] [0] [0] t higher tnk pressure the minimum pilot pressure must e rised in ccordnce with this digrm. [000] [200] [00] [00] [800] [2000] [2200] nk pressure in r [psi]

18 8/38 osch Rexroth G Hydrulics WEH /WH RE 275/08.08 Chrcteristic curves: NG0 (mesured with HL, ϑ oil = 0 C ±5 C [0 F ±9 F]) [0] p-q V chrcteristic curves 7 5 ressure differentil in r [psi] [0] [20] [00] [80] [0] [0] [20] [0] [0] [5] [0] [5] [20] [25] [30] [35] [0][2.3] Flow in l/min [US gpm] Spool Spool position Spool Zero position E,, D F F 3 G, 2 2 G, 7 H, C H 3 5 J, K 2 3 L 2 3 L 3 M Q, V, W, Z R U U, 2 2 erformnce limits: NG0 (mesured with HL, ϑ oil = 0 C ±5 C [0 F ±9 F]) 2-position vlves q V mx in l/min [US gpm] Spool E, J, L, M, Q, R, U, V, W, C, D, K, Z, Operting pressure p mx in r [psi] 200 [2900] 250 [32] 35 [58] 0 [2] 0 [2] 0 [2] H 0 [2] 50 [39] 20 [32] G, 0 [2] 0 [2] 0 [37] F, 0 [2] 0 [37] 20 [32] ttention! Importnt notes - see pge 2!

19 RE 275/08.08 WEH /WH Hydrulics osch Rexroth G 9/38 Chrcteristic curves: NG (mesured with HL, ϑ oil = 0 C ±5 C [0 F ±9 F]) [0] 28 p-q V chrcteristic curves 9 8 ressure differentil in r [psi] [250] [300] [250] [200] [50] [00] [50] [0] [0] [5] [0] [5] [20] [25] [30] [35] [0] [5] [50] [55] [0] [5] [70] [75] [79.2] Flow in l/min [US gpm] Spool Spool position Zero position D, E 3 3 F G C, H 5 2 K, J L M Spool Spool position Zero position Q R 2 7 S U V, Z W 3 erformnce limits: NG (mesured with HL, ϑ oil = 0 C ±5 C [0 F ±9 F]) 2-position vlves q V mx in l/min [US gpm] Spool 70 [05] Operting pressure p mx in r [psi] 0 [2030] 20 [30] 280 [0] 350 [507] externl spring end position in min vlve (t p St min = 2 r [7 psi]) C, D, K,, Z 300 [79] 300 [79] 300 [79] 300 [79] 300 [79] externl spring end position in min vlve ) C 300 [79] 300 [79] 300 [79] 300 [79] 300 [79] D, 300 [79] 270 [7] 20 [8] 250 [] 230 [0] K 300 [79] 250 [] 20 [3] 230 [0] 20 [55] Z 300 [79] 20 [8] 90 [50] 80 [7] 0 [2] externl hydrulic end position in min vlve HC, HD, HK, HZ, H 300 [79] 300 [79] 300 [79] 300 [79] 300 [79] ttention! ) When the specified flow vlues re exceeded, the function of the return springs cn no longer e gurnteed in the event of pilot pressure filure! 3-position vlves q V mx in l/min [US gpm] Spool 70 [05] Operting pressure p mx in r [psi] 0 [2030] 20 [30] 280 [0] 350 [507] 300 [79] externl spring-centered E, H, J, 300 [79] 300 [79] 300 [79] 300 [79] 300 [79] L, M, Q, U, W, R F, 300 [79] 250 [] 80 [7] 70 [5] 50 [39] G, 300 [79] 300 [79] 20 [3] 20 [55] 90 [50] S 300 [79] 300 [79] 300 [79] 250 [] 220 [58] V 300 [79] 250 [] 20 [55] 200 [53] 80 [7] externl pressure-centered (t minimum pilot pressure of r [232 psi]) ll 300 [79] 300 [79] 300 [79] 300 [79] spools 2) 2) With spool V, the pilot vlve is not required in the cse of flows > 0 l/min [2 US gpm]. For further importnt notes, see pge 2!

20 20/38 osch Rexroth G Hydrulics WEH /WH RE 275/08.08 Chrcteristic curves: NG25 (type W.H 22) (mesured with HL, ϑ oil = 0 C ±5 C [0 F ±9 F]) p-q V chrcteristic curves [203] 5 ressure differentil in r [psi] [75] [50] [25] [00] [75] [50] [25] [0] [0] [0] [20] [30] [0] [50] [0] [70] [80] [90] [00] [0] Flow in l/min [US gpm] Spool E, M,, Q, U, V, Z, C Spool position 2 2 F 2 2 G, H, J, W, K, D L R 2 5, 2 2 Spool Zero position F G, H 2 L 5 U

21 RE 275/08.08 WEH /WH Hydrulics osch Rexroth G 2/38 erformnce limits: NG25 (type W.H 22) (mesured with HL, ϑ oil = 0 C ±5 C [0 F ±9 F]) 2-position vlves q V mx in l/min [US gpm] Spool Operting pressure p mx in r [psi] 70 [05] 0 [2030] 20 [30] 280 [0] externl spring end position in min vlve (t p St min = r / r [59 / 203 psi]) C, D, K,, Z externl spring end position in min vlve ) C D, K Z 350 [92] 25 [57] 300 [79] 320 [8] 50 [39] 290 [7] 250 [] 00 [05] 20 [32] 20 [8] externl hydrulic end position in min vlve HC, HD, HK, HZ, H HC./O, HD./O, HK./O, HZ./O HC./OF, HD./OF, HK./OF, HZ./OF 350 [507] 200 [53] 320 [8] 00 [2] 0 [2] 3-position vlves q V mx in l/min [US gpm] Spool Operting pressure p mx in r [psi] 70 [05] externl spring-centered E, J, L, M, Q, U, W, R H G 00 [05] F V 00 [05] 0 [2030] 350 [92] 270 [7] 300 [79] 300 [79] 270 [7] 20 [30] 300 [79] 250 [] 75 [] 20 [3] 20 [3] 80 [7] 280 [0] 20 [8] 200 [53] 30 [3] 220 [58] 200 [53] 70 [5] 350 [507] 230 [] 80 [7] 0 [29] 0 [2] 0 [2] 0 [29] ttention! ) When the specified flow vlues re exceeded, the function of the return springs cn no longer e gurnteed in the event of pilot pressure filure! For further importnt notes, see pge 2!

22 22/38 osch Rexroth G Hydrulics WEH /WH RE 275/08.08 Chrcteristic curves: NG25 (type W.H 25) (mesured with HL, ϑ oil = 0 C ±5 C [0 F ±9 F]) [203] p-q V chrcteristic curves ressure differentil in r [psi] [75] [50] [25] [00] [75] [50] [25] [0] [20] [0] [0] [80] [00] [20] [0] [0] [7.7] Flow in l/min [US gpm] Spool Spool position E, C 3 F 3 3 G 3 2 H, D 3 J, Q, K L M Spool Spool position 5 R 2 8 U V, Z 2 3 W Spool G, centrl position 8 Spool, centrl position

23 RE 275/08.08 WEH /WH Hydrulics osch Rexroth G 23/38 erformnce limits: NG25 (type W.H 25) (mesured with HL, ϑ oil = 0 C ±5 C [0 F ±9 F]) 2-position vlves q V mx in l/min [US gpm] Spool Operting pressure p mx in r [psi] 70 [05] 0 [2030] 20 [30] 280 [0] externl spring end position in min vlve (t p St min = 3 r [88 psi]) C, D, K,, Z externl spring end position in min vlve ) C D, K Z 50 [72 ] 50 [72 ] 00 [05 ] 20 [] 50 [72 ] 350 [92 ] 370 [98] 80 [27 ] externl hydrulic end position in min vlve HC, HD, HK, HZ, H HC./O, HD./O, HK./O, HZ./O HC./OF, HD./OF, HK./OF, HZ./OF ttention! 350 [507] 50 [72 ] 50 [72 ] 300 [79 ] 320 [8 ] 00 [05 ] ) When the specified flow vlues re exceeded, the function of the return springs cn no longer e gurnteed in the event of pilot pressure filure! 3-position vlves q V mx in l/min [US gpm] Spool Operting pressure p mx in r [psi] 70 [05] externl spring-centered E, L, M, Q, U, W G, 00 [05 ] F 50 [72 ] H J 50 [72 ] V 50 [72 ] R 0 [2030] 00 [05 ] 550 [5] 50 [72 ] 550 [5] 550 [5] 20 [30] 00 [05 ] 30 [3] 550 [5] 50 [72 ] 30 [3] 00 [05 ] externl pressure-centered (t minimum pilot pressure of 8 r [2 psi]) E, F, H, J, L, M,, Q, R, U, V, W G, 00 [05 ] 00 [05 ] externl pressure-centered (t pilot pressure > 30 r [35 psi]) G, 00 [05 ] 280 [0] 00 [05 ] 330 [87 ] 00 [05 ] 00 [58 ] 330 [87 ] 350 [92 ] 50 [72 ] 00 [05 ] 350 [507] 50 [72 ] 00 [05 ] 300 [79 ] 30 [95] 520 [37 ] 300 [79 ] 30 [82 ] 580 [53 ] 50 [72 ] 00 [05 ] 50 [72 ] For further importnt notes, see pge 2!

24 2/38 osch Rexroth G Hydrulics WEH /WH RE 275/08.08 Chrcteristic curves: NG32 (mesured with HL, ϑ oil = 0 C ±5 C [0 F ±9 F]) ressure differentil in r [psi] [2] [200] [50] [00] [50] [0] p-q V chrcteristic curves spools E, R nd W Spool Spool position E 3 2 R 3 W 3 2 [0] [0] [80] [20] [0] [200] [20] [285] Flow in l/min [US gpm] ressure differentil in r [psi] [2] [200] [50] [00] [50] [0] p-q V chrcteristic curves spools G nd Spool Spool position G [0] [0] [80] [20] [0] [200] [20] [285] Flow in l/min [US gpm]

25 RE 275/08.08 WEH /WH Hydrulics osch Rexroth G 25/38 erformnce limits: NG32 (mesured with HL, ϑ oil = 0 C ±5 C [0 F ±9 F]) 2-position vlves q V mx in l/min [US gpm] Spool 70 [05] Operting pressure p mx in r [psi] 0 [2030] 20 [30] 280 [0] externl spring end position in min vlve (t p St min = 0 r [5 psi]) C, D, K,, Z 00 [290] 00 [275] 80 [227] 750 [98] externl spring end position in min vlve ) C 00 [290] D, 00 [290] K 00 [290] Z 00 [290] 00 [275] 00 [275] 00 [275] 00 [275] 80 [227] 50 [2] 80 [227] 80 [227] 800 [2] 80 [27] 500 [32] [85] externl hydrulic end position in min vlve HC, HD, HK, HZ, H 00 [290] 00 [275] 80 [227] 750 [98] 350 [507] 80 [79] [85] 20 [] 50 [72] 80 [79] 3-position vlves q V mx in l/min [US gpm] Spool 70 [05] Operting pressure p mx in r [psi] 0 [2030] externl spring-centered E, J, L, M, Q, R, U, W 00 [290] G,, H, F, 900 [238] V 00 [290] 00 [275] 900 [238] 000 [2] 20 [30] 80 [227] 800 [2] 80 [79] externl pressure-centered (t minimum pilot pressure 8,5 r [23 psi]) ll spools 00 [290] 00 [275] 80 [227] 280 [0] 750 [98] 50 [72] 500 [32] 750 [98] 350 [507] 80 [79] 80 [79] ttention! ) When the specified flow vlues re exceeded, the function of the return springs cn no longer e gurnteed in the event of pilot pressure filure! For further importnt notes, see pge 2!

26 2/38 osch Rexroth G Hydrulics WEH /WH RE 275/08.08 erformnce limits: Importnt notes Generl: ttention! he specified switching performnce limits re vlid for opertion with two directions of flow (e.g. from to nd simultneous return flow from to in the rtio of :). Due to the flow forces cting within the vlve, the permissi- le switching performnce limits my e considerly lower with only one direction of flow (e.g. from to while port is locked with flow in only one direction or different flows)! In the cse of such pplictions, plese consult us! he switching performnce limit ws estlished when the solenoids were t operting temperture, t 0% undervoltge nd without tnk pre-loding. ttention! NG NG25 NG32 With internl pilot oil supply, pre-lod vlve must e used t flows < 0 l/min [2 US gpm] due to the negtive overlp of spools C, Z nd HC, HZ. When /3 directionl vlves with pressure-centered control spool in the min vlve re used eyond the specified performnce limit, higher pilot pressure is required. t, for exmple, n operting pressure of p mx = 350 r [507 psi] nd flow of q V = 300 l/min [79 US gpm] pilot pressure of r [232 psi] is required. he mximum flow for these vlves therefore depends on the p vlue, which is cceptle for the system. With internl pilot oil supply, pre-lod vlve must generlly e used (see pge 37) due to the negtive overlp of spools F, G, H, J,, S, nd. With internl pilot oil supply, pre-lod vlve must e used t flows < 80 l/min [7.5 US gpm] due to the negtive overlp of spools Z, HZ, nd V. With internl pilot oil supply, pre-lod vlve must generlly e used due to the negtive overlp of spools C, HC, F, G, H,, nd. With internl pilot oil supply, pre-lod vlve must e used t flows < 80 l/min [7.5 US gpm] due to the negtive overlp of spools Z, HZ, nd V. When /3 directionl vlves with pressure-centered control spool in the min vlve re used eyond the specified performnce limit, higher pilot pressure is required. t, for exmple, n operting pressure of p mx = 350 r [507 psi] nd flow of q V = 00 l/min [290 US gpm] pilot pressure of 5 r [27 psi] is required. he mximum flow for these vlves therefore depends on the p vlue, which is cceptle for the system. With internl pilot oil supply, pre-lod vlve must generlly e used due to the negtive overlp of spools C, HC, F, G, H, nd.

27 RE 275/08.08 WEH /WH Hydrulics osch Rexroth G 27/38 Unit dimensions: NG0 (dimensions in mm [inch]) ,8 [5.7] 3,5 [0.] [0.55] 205, [8.09] [0.59] [0.75] [3.2] [.57] [0.79] 9 [0.75] [3.39] 3 Ø, [Ø0.2] Ø [Ø0.3] 25,5 [.00] 7 [.93] 30,5 [.20] [0.53] 3,5 27 [.0] 0. [2.7] 70 [2.87] 73 F F F2 F3 08 [.25] 0,0/00 [0.000/.0] Rzmx Required surfce qulity of the vlve mounting fce For the explntion of items nd supltes, see pge 32. For vlve mounting screws, see pge 33.

28 28/38 osch Rexroth G Hydrulics WEH /WH RE 275/08.08 Unit dimensions: NG (dimensions in mm [inch]) , [8.09] 3. [0.59] [2.58] 5,5 9 [3.78] 9 [0.75] 2.; 2.2 3,5 [0.] [0.55] [.9] [0.78] 20 0 [.57] 27 [.0] 55 [2.7] 55 [.0] 3 [2.8] 3 [.2] 7 [0.8] 3 Ø3 [Ø0.8] 9 8 [3.9] 7 5 Ø [Ø0.3] Ø8 [Ø0.7] Ø,[Ø0.2] Ø [Ø0.3] 2 [0.83] 2 [5.59] [3.] 92, [0.7] 2 F L F5 F2 G [3.70] F G2 F F3 0,0/00 [0.000/.0] For the explntion of items nd supltes, see pge 32. For vlve mounting screws, see pge 33. Rzmx Required surfce qulity of the vlve mounting fce

29 RE 275/08.08 WEH /WH Hydrulics osch Rexroth G 29/38 Unit dimensions: NG25 (type W.H 22) (dimensions in mm [inch]) , [8.09] [0.59] [.33] 9 [0.75] 2.; 2.2 3,5 [0.] [0.55] [0.78] [3.2] [.57] [0.55] 93 [7.0] 2[9.9] [0.57] [.] Ø [Ø0.2] 9 3 Ø [Ø0.55] Ø20 [Ø0.79] [0.55] 7,5 [0.9] 80 [7.09] [.] 7 F L ) F5 G F2 [.72] F G2 F F3 ) ort L only on vlves with pressure-centered zero position 0,0/00 [0.000/.0] For the explntion of items nd supltes, see pge 32. For vlve mounting screws, see pge 33. Rzmx Required surfce qulity of the vlve mounting fce

30 30/38 osch Rexroth G Hydrulics WEH /WH RE 275/08.08 Unit dimensions: NG25 (type W.H 25) (dimensions in mm [inch]) 205, [8.09] [0.59] [3.2] 2.; [0.75] 9 3,5 [0.] [0.55] 5 [.57] [0.78] [0.75] [8.8] 279 [0.98] 297 [.7] 32,5 [2.78] 332 [3.07] 32,5 [2.78] 27,5 2 [.9] [.08] 3 5 [0.57] [.] [Ø0.2] [Ø0.55] 20 [Ø0.79] 2 [0.83] 95 [7.8] [.] 7 [0.55] F F L ) G2 F5 G F2 F F3 20 [.72] 0.3 ) ort L only on vlves with pressure-centered zero position 0,0/00 [0.000/.0] For the explntion of items nd supltes, see pge 32. For vlve mounting screws, see pge 33. Rzmx Required surfce qulity of the vlve mounting fce

31 RE 275/08.08 WEH /WH Hydrulics osch Rexroth G 3/38 Unit dimensions: NG32 (dimensions in mm [inch]) , [8.09] [0.59] [5.98] 9 [0.75] ; ,5 [0.85] 28,5 32 [.25] 39 [5.39] 39 [5.39] 0 [5.98] 3,5 [0.] [0.55] [.93] [Ø0.2] 9 [0.78] [3.2] [.57] [0.57] 0,2 +0,3 [ ] [Ø.30] 22 [Ø0.87] 23 [0.9] 257 [0.2] [7.7] 97 20,5 [0.8] F L F5 G F2 [7.87] F G2 F F3 0,0/00 [0.000/.0] For the explntion of items nd supltes, see pge 32. For vlve mounting screws, see pge 33. Rzmx Required surfce qulity of the vlve mounting fce

32 32/38 osch Rexroth G Hydrulics WEH /WH RE 275/08.08 Unit dimensions Min vlve 2 ilot vlve type WE to dt sheet RE 2378: 2. ilot vlve type WE D ( solenoid) for min vlves with spools C, D, K, Z spools HC, HD, HK, HZ ilot vlve type WE J ( solenoid ) for min vlves with spools E, F, etc., spring return ilot vlve type WE M ( solenoid ) for min vlves with spools HE, HF, etc., hydrulic Spool return 2.2 ilot vlve type WE ( solenoid) for min vlves with spool spool H ilot vlve type WE J ( solenoid ) for min vlves with spools E, F, etc., spring return ilot vlve type WE M ( solenoid ) for min vlves with spools HE, HF, etc., hydrulic spool return 2.3 ilot vlve type WE J (2 solenoids) for min vlves with 3 spool positions, springcentered ilot vlve type WE M (2 solenoids) for min vlves with 3 spool positions, pressure-centered 3. Solenoid 3.2 Solenoid Mnul override N, optionl he mnul override cn only e ctuted up to tnk pressure of c. 50 r. void dmge to the ore for the mnul override! (Specil tool for opertion, seprte order, Mteril no. R ). When the mnul override is locked, opertion of the solenoids must e ruled out! he simultneous opertion of the solenoids must e ruled out! 5 Solenoid without mnul override Solenoid with mnul override 7 Height of reconnection plte for hydrulic opertion (type WH ) 8 Switching time djustment ( /F), optionl 9 ressure reducing vlve, optionl 0. Mchined vlve mounting fce; porting pttern to ISO nd NF 3.5. R2-D Mchined vlve mounting fce; porting pttern to ISO nd NF 3.5. R2-D Mchined vlve mounting fce; porting pttern to ISO nd NF 3.5. R2-D08 0. Mchined vlve mounting fce; porting pttern to ISO nd NF 3.5. R2-D0 Nmeplte of pilot vlve 2 Nmeplte of complete vlve 3 Sel rings Spce required to remove mting connector 5 2-position vlves with spring end position in min vlve (spool symols, C, D, K, Z) 2-position vlves with spring end position in min vlve (spool symols, ) 7 3-position vlves, spring-centered; 2-position vlves with hydrulic end position in min vlve 8 3-position vlves, pressure-centered 9 Locting pin Supltes (seprte order) NG0 (to dt sheet RE 5) Without ports, : G 53/0 (G3/) G 53/2 (SE-2; /-2) ) With port, : G 535/0 (G3/) G 53/0 (G) G 535/2 (SE-2; /-2) ) G 53/2 (SE-; 5/-2) ) NG (to dt sheet RE 5) G 72/0 (G3/) G 72/02 (M27 x 2) G 7/0 (G) G 7/02 (M33 x 2) G 7/08 (flnge) G 72/2 (SE-2; /-2) ) G 7/2 (SE-; 5/-2) ) NG25 (type W.H 22 to dt sheet RE 58) G 5/0 (G) G 5/0 (G /) G 5/0 (G /2) G 55/2 (SE-; 5/-2) ) G 5/2 (SE-20; 5/8-20) ) G 5/2 (SE-2; 7/8-20) ) NG25 (type W.H 25 to dt sheet RE 58) G 5/0 (G) G 53/0 (G), for vlves with pressure-centered zero position G 5/0 (G /) G 5/08 (flnge) G 5/0 (G /2) G 53/2 (SE-; 5/-2) ) G 5/2 (SE-20; 5/8-20) ) G 5/2 (SE-2; 7/8-20) ) NG32 (to dt sheet RE 0) G 57/0 (G /2) G 57/02 (M8 x 2) G 58/0 (flnge) G 57/2 (SE-2; 7/8-2) ) ) on request For vlve mounting screws, see pge 33.

33 RE 275/08.08 WEH /WH Hydrulics osch Rexroth G 33/38 Unit dimensions Vlve mounting screws (seprte order) NG0: hexgon socket hed cp screws, metric ISO 72 - M x flZn-20h-L (Friction coefficient µ totl = 0.09 to 0.); tightening torque M = 2.5 Nm [9.2 ft-ls] ±0%, Mteril no. R hexgon socket hed cp screws, UNC /-20 UNC x 3/ SM-57 on request NG: hexgon socket hed cp screws, metric ISO 72 - M0 x flZn-20h-L (Friction coefficient µ totl = 0.09 to 0.); tightening torque M = 75 Nm [55.3 ft-ls] ±0%, Mteril no. R hexgon socket hed cp screws metric ISO 72 - M x flZn-20h-L (Friction coefficient µ totl = 0.09 to 0.); tightening torque M = 2.5 Nm [9.2 ft-ls] ±0%, Mteril no. R NG25: hexgon socket hed cp screws, metric ISO 72 - M2 x flZn-20h-L (Friction coefficient µ totl = 0.09 to 0.); tightening torque M = 30 Nm [95.9 ft-ls] ±0%, Mteril no. R hexgon socket hed cp screws, UNC /2-3 UNC x 2 /2 SM-57 on request NG32: hexgon socket hed cp screws, metric ISO 72 - M20 x flZn-20h-L (Friction coefficient µ totl = 0.09 to 0.); tightening torque M = 30 Nm [37.2 ft-ls] ±0%, Mteril no. R hexgon socket hed cp screws, UNC 3/-0 UNC x 3 / SM-57 on request hexgon socket hed cp screws, UNC 3/8- UNC x 2 / SM-57 on request 2 hexgon socket hed cp screws, UNC /-20 UNC x 2 / SM-57 on request

34 3/38 osch Rexroth G Hydrulics WEH /WH RE 275/08.08 Stroke djustment, ttchment options (dimensions in mm [inch]) he stroke djustment feture limits the stroke of control spool (). o reduce the spool stroke, loosen locknut (2) nd turn djustment screw (3) clockwise. Control chmer () must e depressurized during this process. L L3 NG L 0,5 [0.2] 0 [0.39] 25 (type W.H 22) 9,5 [0.37] 25 (type W.H 25) 2,5 [0.9] 32 5 [0.59] For further dimensions, see elow nd pge Stroke limittion on side L3 5 djustment rnge NG0: turn = mm [0.039 inch] djustment trvel NG nd 32: turn =.5 mm [0.059 inch] djustment trvel Stroke limittion on side L3 L L2 L3 L2 L L L3 L2 ttchment options Stroke djustment on vlve sides nd Stroke djustment on vlve side Stroke djustment on vlve side Ordering code 0 2 ) With spool symol, only version possile, with spool symol, only version 2. Spring-centered 3-position vlve ) ressure-centered NG L L2 L3 L L2 L [3.5] [5.7] 23 [9.2] 00 [3.9] 200 [7.87] 300 [.8] 25 ) 9 [3.77] 2 [9.9] 337 [3.27] 25 2) 23 [.8] 27 [0.87] 399 [5.7] [5.2] 3 [3.5] 77 [8.78] 0 90 [3.5] 0 [.7] 9 [7.72] 00 [3.9] 5 [.] 25 [0.08] 25 ) 9 [3.77] 93 [7.0] 289 [.38] 25 2) 23 [.8] 225 [8.8] 38 [3.70] [5.2] 287 [.30] 20 [.5] 0 52 [2.05] [5.7] 9 [7.72] 5 [2.20] 200 [7.87] 25 [0.08] 8 [3.9] 200 [7.87] 28 [.0] 25 ) 8 [.89] 2 [9.9] 289 [.38] 25 2) 72 [2.83] 27 [0.87] 38 [3.70] 07 [.2] 27 [0.87] 283 [.] 32 7 [2.99] 3 [3.5] 20 [.5] 20 [.72] 3 [3.5] [8.27]

35 RE 275/08.08 WEH /WH Hydrulics osch Rexroth G 35/38 Stroke djustment, ttchment options (dimensions in mm [inch]) 2-position vlve ttchment options Stroke djustment on vlve sides nd Stroke djustment on vlve side Stroke djustment on vlve side Ordering code 0 2 Spring end position Hydrulic end position, C, D, K, Z, HC, HD, HK, HZ, H NG L L2 L3 L L2 L3 L L2 L ) 9 [3.78] 2 [9.9] 337 [3.27] 9 [3.78] 2 [9.9] 337 [3.27] 25 2) [3.5] 00 [3.9] 25 ) 9 [3.78] 25 2) 23 [.8] [5.2] 0 [.7] 80 [7.09] 93 [7.0] 253 [9.9] 3 [2.] 9 [7.72] 280 [.02] 289 [.38] 37 [.8] 9 [7.8] 0 25 ) 8 [.89] 2 [9.9] 289 [.38] 25 2) 32 9 [3.78] 93 [7.0] 289 [.38] 52 [2.05] 80 [3.5] 8 [.89] 00 [3.9] 05 [.3] [5.7] 200 [7.87] 2 [9.9] 27 [0.87] 3 [3.5] 9 [7.72] 280 [.02] 289 [.38] 37 [.80] 9 [7.8] 90 [3.5] 00 [3.9] 9 [3.78] 23 [.8] 33 [5.2] 90 [3.5] 00 [3.9] 9 [3.78] 23 [.8] 33 [5.2] 52 [2.05] 5 [2.2] 8 [.89] 72 [2.8] 7 [2.99] [5.7] 200 [7.87] 2 [9.9] 27 [0.87] 3 [3.5] 0 [.7] 5 [.] 93 [7.0] 225 [8.8] 287 [.30] [5.7] 200 [7.87] 2 [9.9] 27 [0.87] 3 [3.5] 23 [9.2] 300 [.8] 337 [3.27] 399 [5.7] 77 [8.78] 9 [7.72] 25 [0.08] 289 [.38] 38 [3.70] 20 [.53] 9 [7.72] 25 [0.08] 289 [.38] 38 [3.70] 20 [.53] ) ypes WEH 22 nd WH 22 2) ypes WEH 25 nd WH 25

36 3/38 osch Rexroth G Hydrulics WEH /WH RE 275/08.08 Switching time djustment he switching time of min vlve () cn e influenced y using doule throttle check vlve (2) (type Z2FS to dt sheet RE 2750). Conversion of meter-in (3) into meter-out control (): Remove pilot vlve (5) plte () for ccommodting the sel rings remins in plce turn switching time djustment feture (2) round its longitudinl xis nd put it down gin, re-mount pilot vlve (5). ightening torque of screws (7) M = 9 Nm [. ft-ls] ttention! he conversion my only e crried out y uthorized specilists or in the fctory! ype WEH 0../ S ype WEH 0../ S2 ressure reducing vlve D3 ressure reducing vlve (8) must e used in the cse of pilot pressure ove 250 r [32 psi] (with type WEH 22 : 20 r [30 psi]) nd version H-. he secondry pressure is held constnt t 5 r [52 psi]. ttention! When pressure reducing vlve D3 (8) is used, throttle insert 0 must e provided in the chnnel of the pilot vlve. ightening torque of screws (7) M = 9 Nm [. ft-ls]. 8 7 ype WEH 0../ /..D3

37 RE 275/08.08 WEH /WH Hydrulics osch Rexroth G 37/38 re-lod vlve (not for NG0) For vlves with pressureless circultion nd internl pilot oil supply, pre-lod vlve (9) must e instlled in chnnel of the min vlve to uild up the minimum pilot pressure. he pressure differentil of the pre-lod vlve must e dded to the pressure differentil of the min vlve (see chrcteristic curves) to otin totl vlue. he crcking pressure is c..5 r [5 psi] re-lod vlve NG 9.2 re-lod vlve NG25 nd NG32 0 Min vlve Suplte ype W.H W.H 22 W.H 25 W.H 32 Mteril numer,5 R R R R p q V chrcteristic curve (mesured with HL, ϑ oil = 0 C ± 5 C [0 F ±9 F]) ressure differentil in r [psi] [203] [50] [00] [50] [0] [0] [20] [0] [0] [80] [00] [20] [0] [0] [85] Flow in l/min [US gpm] NG 2 NG25 (type W.H 25 ) 3 NG25 (type W.H 22 ) NG32

38 38/38 osch Rexroth G Hydrulics WEH /WH RE 275/08.08 Notes osch Rexroth G Hydrulics Zum Eisengießer 978 Lohr m Min, Germny hone +9 (0) / 8-0 Fx +9 (0) / documenttion@oschrexroth.de his document, s well s the dt, specifictions nd other informtion set forth in it, re the exclusive property of osch Rexroth G. It my not e reproduced or given to third prties without its consent. he dt specified ove only serve to descrie the product. No sttements concerning certin condition or suitility for certin ppliction cn e derived from our informtion. he informtion given does not relese the user from the oligtion of own judgment nd verifiction. It must e rememered tht our products re suject to nturl process of wer nd ging.

39 RE 275/08.08 WEH /WH Hydrulics osch Rexroth G 39/38 Notes osch Rexroth G Hydrulics Zum Eisengießer 978 Lohr m Min, Germny hone +9 (0) / 8-0 Fx +9 (0) / documenttion@oschrexroth.de his document, s well s the dt, specifictions nd other informtion set forth in it, re the exclusive property of osch Rexroth G. It my not e reproduced or given to third prties without its consent. he dt specified ove only serve to descrie the product. No sttements concerning certin condition or suitility for certin ppliction cn e derived from our informtion. he informtion given does not relese the user from the oligtion of own judgment nd verifiction. It must e rememered tht our products re suject to nturl process of wer nd ging.

40 0/38 osch Rexroth G Hydrulics WEH /WH RE 275/08.08 Notes osch Rexroth G Hydrulics Zum Eisengießer 978 Lohr m Min, Germny hone +9 (0) / 8-0 Fx +9 (0) / documenttion@oschrexroth.de his document, s well s the dt, specifictions nd other informtion set forth in it, re the exclusive property of osch Rexroth G. It my not e reproduced or given to third prties without its consent. he dt specified ove only serve to descrie the product. No sttements concerning certin condition or suitility for certin ppliction cn e derived from our informtion. he informtion given does not relese the user from the oligtion of own judgment nd verifiction. It must e rememered tht our products re suject to nturl process of wer nd ging.