4/2 and 4/3-way Directional Valves Pilot Operated Model 4 WEH Externally Pilot Operated Model 4 WH

Transcription

1 R 24 75/9.99 R 24 75/9.99 Replces: /2 nd 4/3-wy Directionl Vlves ilot Operted Model 4 WEH Externlly ilot Operted Model 4 WH Sizes to 32 Series 4, 6, 7 Mximum pressure up to 576 SI (35 r) Mximum volume up to 29.6 GM ( L/min) Fetures Solenoid pilot operted directionl vlves (WEH) Hydrulic pilot operted directionl vlves (WH) Mounts on stndrd ISO 44-5, 7, 8 or, NF 3.5. M Model 4WEH.4/..6EW K4.. with plug-in connector R nd NSI 93.7 D 5, D 7, D 8 or D interfces For supltes, see dt sheets R R 45 6, my e ordered seprtely 3-position spring centered (sizes to 32) 3-position spring or hydrulic centering (sizes 6, 25 nd 32) 2-position hydrulic or spring offset (sizes to 32) Wet pin C or DC solenoids s required Mnul overrides stndrd (WEH) Individul solenoid plug-in connectors or centrl wiring ox, see dtsheet R 8 6 Optionl meter-in or meter-out pilot choke option Optionl stroke limiter nd/or spool position indictor upon request (Size 6 or 32), see dt sheet R Optionl inductive limit switches to monitor min spool position, upon request, see dt sheet R "" port pilot pressure insert (sizes 6 to 32), for open center spools Model 4WEH 22 E 7/..6EG..N9..D.. with plug-in connector 4WEH.tif 4WEH22.tif K 384/4 Model 4WH 32.6/.. 4WEH25.tif Model 4WEH 25 E6/..6EG..N9...K4.. with plug-in connector /24

2 R 24 75/9.99 ilot oil supply 4WEH ll Rexroth solenoid pilot operted directionl vlves re field convertle from externl to internl pilot or drin. his requires removing or replcing internl plugs s shown in sectionl views on this pge. For plug loction within the sectionl views, plese refer to the pproprite instlltion drwing. Since the method of piloting is designted y model code, nmepltes should e corrected when conversions re mde. 4WEH/ (no designtion = externl pilot nd externl drin) his model is externlly piloted vi port "" nd externlly drined vi port "". ll internl plugs (), () re instlled. 4WEH/...E (E = internl pilot nd externl drin) ilot fluid is supplied internlly from "", while externlly drined through port "". ort "" in the suplte must e plugged. o convert vlve Model 4WEH 6..., the port "" side end cp must e removed. Spool (see section c-c) with O-ring sel is removed nd rotted round the verticl xis. he vlve is re-ssemled y re-instlling the spool nd replcing the end cp. orque on olts t = 27 l-ft (37 Nm). 4WEH/... ( = externl pilot nd internl drin) his model is externlly piloted through port "" nd internlly drined to port "". ort "" in the suplte must e plugged. 4WEH/...E (E = internl pilot nd internl drin) On this model, pilot fluid supply is internl from port "" nd the drin is internl through port "". oth ports "" nd "" in the suplte re plugged. lug M6 DIN , 3 /F pilot oil drin 2 lug M6 DIN , 3 /F pilot oil supply 3 lug M8 x DIN , 4 /F for externl seling ightening torques M for cover mounting olts: Size 6: 35.8 l-ft (35 Nm) Size 25: 5.2 l-ft (68 Nm) ightening torque M for pilot vlve mounting olts: Sizes to 32: 6.64 l-ft (9 Nm) ilot orifice insert (option 8,, 2, 5) o limit mximum flow, orifice inserts re optionlly ville. rimrily, the orifice insert is intended to prevent flow rtes in excess of the mximum performnce dt of the pilot vlve (see pge 9). For this purpose the insert is instlled in ilot vlve the "" port however, will fit ny of the ports, llowing for design flexiility. Min vlve Size 6 Section D D* 2 Section * 2 Cover Min vlve 2 Min vlve Size 22 (model 4W.H 22.7/ ) Section * ilot oil supply externl: 2 plugged internl: 2 open Size 25 (model 4W.H 25.6/ ) ilot oil supply externl: 2 plugged internl: 2 open 3 3 Cover Min vlve Size 6 Section C C ilot oil supply externl: 2 plugged internl: 2 open ilot oil drin externl: plugged internl: open ilot vlve Section ilot vlve ilot oil drin externl: plugged internl: open ilot oil drin externl: plugged internl: open Size Section * 2 ilot vlve ilot oil supply Min vlve ilot oil drin externl: 2 plugged externl: plugged internl: 2 open internl: open ilot vlve Size 32 Section C C Section * 2 Rexroth Hydrulics 2/24 4WE(H) ilot oil supply ilot oil drin externl: 2 plugged externl: plugged internl: 2 open internl: open * See pge 3 /F = cross Flts

3 Functionl description, section R 24 75/ C 2 7 Model 4WH 3.2 C 3. 8 D D 6 Model 4WEH 6... Directionl Controls Model 4WEH Directionl vlves Model 4WEH... re solenoid pilot operted spool type vlves. In the stndrd version, 3-position spools re spring centered, while 2-position spools re hydruliclly offset. spring offset twoposition, nd hydruliclly centered three-position, option is lso ville for most sizes. Directionl control vlves control the strt, stop nd direction of fluid flow. 3-osition Vlves,Exmple 4WEH 22 E-7/6... In spring centered versions, the pilot vlve vents oth chmers (6) to tnk in center position. his llows return springs (3., 3.2) to center spool (2) with respect to housing (). ilot vlve (4) is supplied vi pssge (7), either internlly from min port "" or externlly through pilot port "". When solenoid is energized, one of the two end cps (6) is pressurized, while the other is drined to tnk. Min spool (2) moves to shifted position, (flow pttern "" to "" nd "" to "" or "" to "" nd "" to ""), depending on which solenoid (5) is energized. lese refer to symols on pge 6, 7, nd 8 for exct flow ptterns/solenoid reltionships. ilot vlve (4) cn e internlly drined through min port "" or externlly drined through pilot port "". Mnul overrides re provided to operte the vlve without electriclly energizing the solenoid. For three-position vlves (except sizes nd 22), hydrulic centered option is ville (not shown). In this model, hydrulic centering requires oth end cp chmers (6) e pressurized in the non-energized condition. n "L" drin port (not shown) is provided through the min vlve interfce. 2-osition Vlves, Exmple 4WEH 22C7/6... In this model, the min spool (2) is normlly hydruliclly offset y 2- position pilot vlve (4). he end cp chmers (6) re supplied without springs (3., 3.2). he pilot vlve my e 2-position, single solenoid (spool type "D"); 2-position, doule solenoid (spool type "D/O"); or doule solenoid with detent (spool type "D/OF"). lese refer to dt sheet R for dditionl informtion on the pilot vlve. spring offset, 2- position min spool (not shown) is lso ville. his option ssures the position of the min spool (2) during strt-up nd is prticulrly intended to e used with externlly piloted systems, where the min pumps re strted efore the pilot oil supply system. Directionl Controls Model 4WH... Directionl control vlves Model 4WH... re identicl to Model 4WEH... except tht the solenoid operted pilot vlve (4) is replced y cover plte (). he cover plte connects pilot port "" to chmer (6) on "" port side nd pilot port "" to chmer "6" on the "" port side. ilot pressure on port "" provides shifted position "", while pilot pressure on port "" provides shifted position "". During system design, plese consider the following: o chieve center position, the spring centered version requires venting oth end cp chmers (6). he pressure centered version requires pressuriztion of oth end cp chmers (6); nd two-position hydruliclly offset versions, spool (2) position cn only e ssured y mintining pilot pressure on either "" or port "". 4WE(H) 3/24 Rexroth Hydrulics

4 R 24 75/9.99 Functionl description, section Model 4WEH 6 H... 2 L 4/3-wy directionl vlve with pressure centering of the min control spool, model 4WEH H he min control spool (2) in the min vlve is held in the neutrl position y pressuriztion of the two front fces. centering sleeve (2) is supported in the housing nd holds the spool in position. y removing the pressure from one of the spool ends, the min control spool (2) is moved to the shifted position. he unloded spool re displces the returning pilot oil vi the pilot vlve into the chnnel (externl). Rexroth Hydrulics 4/24 4WE(H)

5 Shifting time djustment, pressure reducing vlve, pre-lod vlve R 24 75/9.99 ilot choke djustment (option S or S2) he shifting time of the min vlve () cn e djusted y using sndwich mounted throttle vlve with reverse free flow check (2), model Z2FS 6 (dt sheet R 27 56). urning djustment (3) clockwise will increse the shifting time. Conversion from option "S" meter-in (3) to option "S2" meter-out (4) requires removl of the pilot vlve (4). he O-ring plte (5) remins with the min vlve housing (), while the throttle vlve is rotted round the longitudinl xis. ilot vlve (4) is then re-instlled. ightening torque for olts (6) is 6.5 l-ft (8.9 Nm). ilot pressure reducing vlve (option "D3") o chieve smoother shifts with internlly piloted vlves, reduce internl pilot pressure to minimum vlues, nd optimize the pilot choke, meter-out throttle (S2). Option D3, model ZDR 6 D2-5x/75M sndwich mounted reducing vlve (see dt sheet R ) cn e djusted from pproximtely 3 SI (2 r) to SI (75 r). pressure setting of 2 SI (4 r) to 4 SI (28 r) is usully dequte. lese note: he minimum pilot pressures stted on pge 9, must e incresed y.55 when the fixed rtio pilot pressure vlve is pplied. (, ) () 4 (, ) 3 () Model 4WEH..4/ S or S2 7 Model 4WEH..4/ /..D ort "" pilot pressure insert (option 4.5) (not ville for size, order sndwich plte Model ZS 3-3 S) For internlly piloted vves with open or tndem center Min vlve spools (types C, F, G, H,,, V, Z, S), minimum pilot pressure requirements cn e chieved y using pilot pressure insert (8) in port "" of the min vlve. his Suplte design permits the min vlve to e internlly piloted nd internlly drined. he pressure drop of the pilot pressure insert (see grph elow) is in ddition to the presure drop of the min vlve (see performnce curves). he crcking pressure of 4.5 pilot pressure insert is pproximtely 65 SI (4.5 r). 8 Order numer Size RR (model 4W.H 22.7/ ) RR (model 4W.H 25.6/ ) RR RR 3766 p/q V chrcteristic curve, mesured t ν = 9 SUS (4 mm 2 /s) nd t = 22 F (5 C) ressure differentil in SI (r) (4) (2) () (8) (6) (4) (2) Size 6 2 Size 25 (model 4W.H 25.6/ ) 3 Size 25 (model 4W.H 22.7/ ) 4 Size () (2) (3) (4) (5) (6) (7) Flow in GM (L/min) 4WE(H) 5/24 Rexroth Hydrulics

6 R 24 75/9.99 Ordering code SI (28 r) = no code 5 SI (35 r) = H 4-wy (Four service ports) = 4 Opertion Solenoid operted pilot vlve = WEH Hydruliclly operted = WH Size (D 5) = 6 (D 7) = 6 22 (D 8) 6) = (D 8) 7) = (D ) = 32 Spool return 9) (min ody) Spring return (size to 32) = no code Hydrulic return (size to 32)* = H *(Size nd 22 with spool types C, D, K, Z, only) Spool type (ex. C, E, etc.) for possile spool configurtion, see pge 6 3-position vlve = no code 3-position vlve with position "" only ) = 3-position vlve with position "" only ) = Series Size Series 4 to 49* = 4 Size 25, 32 Series 6 to 69* = 6 Size 6, 22 Series 7 to 79* = 7 *externlly interchngele Vrition to the pilot vlve For 2-position vlves with 2 solenoids: Only possile with spool types C, D, K, Z, nd hydrulic spool return "H" in the min vlve Without spring return = O Without spring return with detent = OF ilot vlve WE 6 (D 3), with removle solenoids = 6E C voltge ) 2 Volts C, 5/6 Hz = W 8) DC solenoid with rectifier = W R for C opertion (only for voltges V nd with Z 55 (Z5) plug-in connector DC voltge: ) (Ex. 2, 24 V DC) = G + voltge 8) Without mnul overrides = no code With mnul overrides; ) = N With protected mnul overrides ) (stndrd 6E) = N9 Externlly piloted, externlly drined 5) = no code Internlly piloted, externlly drined2; 5) = E Internlly piloted, internlly drined 2) = E Externlly piloted, internlly drined 5) = (On sizes 6, 25, 32 models "E" nd "" with hydruliclly centered three-position vlves, re only possile if: p pilot 2 x p tnk + p pilot min D = DL = Further detils to e written in cler text no code = NR sels, suitle for petroleum oils (HM, HL, HL) V = FM sels, suitle for phosphte ester (HFD-R) no code = without pilot pressure control vlve D = Fixed rtio pressure reducing vlve; 3) D3 = djustle pressure reducing vlve; 3) (recommended with meter-out pilot chokes) no code = Without pilot pressure insert 4.5 = p o = 65 SI (4.5 r) 4; 3) 7 = p o = SI (7 r) 4; 3) (For spool types C, F, G, H,,, V, Z, S) Orifice insert no code = Without orifice insert 8 = Orifice Ø.3" (.8 mm) = Orifice Ø.39" (. mm) 2 = Orifice Ø.47" (.2 mm) 5 = Orifice Ø.59" (.5 mm) uxiliry ccessories Mechnicl limit switch, stroke limiters, end position monitor, etc. see R uxiliry ccessories Inductive limit switch, see R Electricl connections to dt sheet R 86 ) Centrl electricl connections erminl ox with /2" N conduit connection erminl ox with /2" N conduit connection nd light(s) NSI M plug-in type connections (without femle end) erminl ox w/3-pin connector (single solenoid) erminl ox w/5-pin connector (doule solenoid) erminl ox w/3-pin connector & light (single sol.) erminl ox w/5-pin connector & light (single sol.) DK23 = DK25 = DK23L = DK25L = DK24L2 = erminl ox with lights & surge suppression 2) Individul solenoid plug-in connection K4 3) = without ngled plug connector(s) no code = without pilot choke djustment S = With meter-in pilot choke djustment S2 = With meter-out pilot choke djustment * p pilot p pilot min = pilot pressure = minimum pilot pressure p tnk p o = nk pressure = Crcking pressure ) Enter only for solenoid operted vlves, Model WEH 2) With internl piloting, note the minimum pilot pressure vlues, see pge. 3) When comining pressure reducing option D, D3 with pilot pressure insert, use Model 7 only 4) For size vlves pilot pressure sndwich plte Model ZS 3-3 S my e used 5) With externlly piloted or drined size vlves, order sndwich pltes (ZD..., ZDR..., Z2FS...) with "SO 3" designtion t the end of the model code, for & through ports 6) Model 4W.H (stndrd model) 7) Model 4W.H (high flow model) 8) Removle solenoids (6E) re dul frequency; dditionl voltges see R ) Defines method to return to min spool ) Defines 3-position spool, i.e. J, E, W, M where only one side is required. See pg. 6 Exmple 4WEH22-E-7/6E ) For WE6.6/E pilots, N is covered override with ruer oot 2) With surge suppression, 24 V DC only, with 4-pin micro connector; Exmple: 4WEH22.7/6EG24EN9DK24L2 3) For dditionl connectors, plese see pge 8. Rexroth Hydrulics 6/24 4WE(H)

7 Symols (to ISO 29) R 24 75/9.99 WH WEH,,,, = C = D = K../....H../..../....H../....H../O..H../OF WH WEH,,,,../....H../...). H../.. H. H. = Z WH WEH,,../..../....H../.. = = E ) = F = G = H = J = = L = M = ) Exmple: Spool E, solenoid on side "" Order exmple: H-4WEH 6 E7/6EG24N9ESK4...V.. 2) Spool S only for size 6 = Q = R = S 2) = = U = V = W 4WE(H) 7/24 Rexroth Hydrulics

8 R 24 75/9.99 Vlve opening in neutrl position for spools Q, V nd W Size Vlve opening in neutrl position in in 2 (mm 2 ) Spool (model 4W.H 22.7/ ) (model 4W.H 25.6/ ) Q.2 (3).5 (32).2 (78).29 (83).2 (78).2 (3).5 (32).2 (78).29 (83).2 (78) V.2 (3).5 (32).3 (73).29 (83).3 (73).2 (3).5 (32).3 (73).29 (83).3 (73).2 (3).5 (32).3 (84).29 (83).3 (84).2 (3).5 (32).3 (84).29 (83).3 (84) W.37 (2.4).93 (6).55 ().27 (4).3 (2).37 (2.4).93 (6).55 ().27 (4).3 (2) Detiled nd simplified symols for 3-position vlves (to DIN ISO 29) Vlve with spring-centered neutrl position Vlve with pressure-centered neutrl position {only sizes 6, 25 (model 4W.H 25.6/ ) nd 32} = externl; = externl,, Model 4WEH../.. L,, Model 4WEH..H../.. L = internl; = externl,, Model 4WEH../..E.. L,, Model 4WEH..H../..E.. L = internl; = internl,, Model 4WEH../..E.. 3-position vlves, pressure-centered, preferrly with externl pilot oil supply nd/or drin (No code, E) For the preconditions for internl pilot oil supply nd/or drin (E, ) see pge 6 or. = externl; = internl,, Model 4WEH../... Rexroth Hydrulics 8/24 4WE(H)

9 4WE(H) 9/24 Rexroth Hydrulics R 24 75/9.99 Vlves with hydrulic offset Vlves with spring offset Model 4WEH.../... Model 4WEH..H.../... Model 4WEH..H.../OF... Model 4WEH..H.../O... Model 4WEH.../...E... Model 4WEH..H.../...E... Model 4WEH..H.../O...E... Model 4WEH..H.../OF...E... Model 4WEH.../...E... Model 4WEH..H.../...E... Model 4WEH..H.../O...E... Model 4WEH..H.../OF...E... Model 4WEH.../... Model 4WEH..H.../... Model 4WEH..H.../O... Model 4WEH..H.../OF... = externl = externl = internl = internl = internl = externl = externl = internl,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Detiled nd simplified symols for 2-position vlves (to DIN ISO 29)

10 R 24 75/9.99 echnicl dt (For pplictions outside these prmeters, plese consult us!) Sizes (ordering code) W.H 22.7/. 4W.H 25.6/. Operting pressure, mx. ort,, Model 4WEH SI (r) 46 (28) 46 (28) 46 (28) 46 (28) Model H-4WEH SI (r) 576 (35) 576 (35) 576 (35) 576 (35) 576 (35) ort ilot oil drin externl SI (r) 4569 (35) 5) 3626 (25) 3626 (25) 3626 (25) 3626 (25) ilot oil drin internl ) SI (r) 346 (2) 7) DC SI (r) 232 (6) 7) C ort ilot oil drin externl: SI (r) 346 (2) 7) DC, 232 (6) 7) C with version 4WH SI (r) 3626 (25) 3626 (25) 346 (2) 3626 (25) 3626 (25) ilot pressure, mx. SI (r) 3626 (25) 3626 (25) 346 (2) 3626 (25) 3626 (25) (With higher pilot pressures, pressure reducing vlve is required.) ilot pressure, min. ilot oil supply externl, pilot oil supply internl H-4W.. 4W.. (not with spools: C, F, G, H,,, V, Z, S 2) ) position vlve, spring-centred SI (r) 45 () 23 (4) (2.5) (.5) 89 (3) 23 (8.5) 3-position vlve, pressure-centred SI (r) 23 (4) 8 23 (8.5) 2-position vlve, with spring offset SI (r) 45 () 23 (4) 23 (4) 6 () 89 (3) 45 () 2-position vlve, with hydrulic offset SI (r) 2 (7) 23 (4) 6 (8) 6 (8) 72.5 (5) pilot oil supply internl (with spools C, F, G, H,,, V, Z, S 2) ) SI (r) 65.3 (4.5) 3) 65.3 (4.5) 4) 65.3 (4.5) 4) 65.3 (4.5) 4) 65.3 (4.5) 4) ) s 3-position vlve with spring-centering only possile if p pilot 2 x p tnk + p pilot min. 4) For spools C, F, G, H,,, V, Z, S 2) (y mens of 2) Spool S only for size 6 prelod vlve or sufficiently lrge flow) 3) 5) For symols C, F, G, H,,, V, Z internl pilot oil supply is only possile, if the flow Model 4WEH...: 46 SI (28 r), from to in the neutrl position (in 3-position vlve) or when the vlve is Model H-4WEH...: 4569 SI (35 r) moving through the neutrl position (in 2-position vlve) is lrge enough to 7) High-performnce vlve "6E" (RD 23 78) ensure minimum pressure differentil of 94.3 SI (6.5 r) from to. Hydrulic fluid Minerl oil (HL, HL) to DIN ) ; Fst io-degrdle 8) Suitle for NR nd FM sels hydrulic fluids to VDM (see lso R 9 22); HEG 9) Only suitle for FM sels (rpe seed oil) 8) ; HEG (polyglycols) 9) ; HEES (synthetic esters) 9) ; other hydrulic fluids on inquiry Fluid temperture rnge F ( C) 22 to +76 ( 3 to +8), NR sels; 4 to +76 ( 2 to +8), FM sels Viscosity rnge SUS (mm 2 /s) 35 to 238 (2.8 to 5) Clenliness Mximum permissile degree of contmintion of the hydrulic NS 638 clss 9. We therefore recommend filter with minimum retention rte of ß 75. ilot oil volume for shifting opertion 3-position vlve, spring-centred in 3 (cm 3 ).25 (2.4).349 (5.72).466 (7.64).867 (4.2).8 (29.4) 2-position vlve in 3 (cm 3 ).249 (4.8).699 (.5).932 (5.3).733 (28.4) 3.59 (58.8) 3-position vlve, pressure-centred in 3 (cm 3 ) WH WEH WH WEH WH WEH from neutrl position to shifted position in 3 (cm 3 ) (2.83) (2.83) (7.5) (7.5) (4.4)(4.4) from shifted position to neutrl position in 3 (cm 3 ) (5.72) (2.9) (4.2) (7.) (29.4)(5.) from neutrl position to shifted position in 3 (cm 3 ) (5.72) (5.72) (4.2) (4.2) (29.4)(29.4) from shifted position to neutrl position in 3 (cm 3 ) (8.55) (2.83) (9.88) (5.73) (43.8) (4.4) ilot oil flow for shortest shifting time (pprox.) GM (L/min) 9.25 (35) 9.25 (35) 9.25 (35) 9.25 (35).9 (45) Weight (pprox.) Vlve with one solenoid ls (kg) 4. (6.4) 8.7 (8.5) 25.4 (.5) 38.8 (7.6) 89.3 (4.5) Vlve with two solenoids, spring-centred ls (kg) 5 (6.8) 9.6 (8.9) 26.2 (.9) 39.7 (8.) 9.4 ( 4.) Vlve with two solenoids, pressure-centred ls (kg) 5 (6.8) 9.6 (8.9) 26.2 (.9) 4.9 (9.) 9.4 ( 4.) Vlve with hydrulic opertion (4 WH ) ls (kg) 2. (5.5) 6. (7.3) 23. (.5) 36.4 (6.5) 87. (39.5) Shifting time djustment ls (kg).76 (.8).76 (.8).76 (.8).76 (.8).76 (.8) ressure reducing vlve ls (kg).882 (.4).882 (.4).882 (.4).882 (.4).882 (.4) Instlltion position optionl; vlve with hydrulic spool return H (spools C, D, K, Z, ) horizontl Rexroth Hydrulics /24 4WE(H)

11 Shifting times ) ) Shifting time = Contcting t the pilot vlve up to strt of opening of the control lnd in the min vlve R 24 75/9.99 Size 32 Size 25 (4W.H 25.6) Size 22 (4W.H 22.7) Size 6 Size Shifting time of the vlve from neutrl position to shifted position with C (~) nd DC (=) opertion t pilot pressure SI (r) ~ 5 (7) = ~ 23 (4) = ~ 346 (2) = ~ 3626 (25) = 3-position vlve ms position vlve ms Shifting time of the vlve from shifted position to neutrl position 3-position vlve ms 3 2-position vlve ms Shifting time of the vlve from neutrl position to shifted position with C (~) nd DC (=) opertion t pilot pressure SI (r) ~ 5 (7) = ~ 23 (4) = ~ 346 (2) = ~ 3626 (25) = 3-position vlve, spring-centered ms position vlve ms position vlve, Solenoid operted pressure-centeed ms Shifting time of the vlve from shifted position to neutrl position 3-position vlve, spring-centered ms 2 to 35 for ~ / 3 for = 2-position vlve ms position vlve, from pressure-centeed ms Shifting time of the vlve from neutrl position to shifted position with C (~) nd DC (=) opertion t pilot pressure SI (r) ~ 58 (35) = ~ 5 (7) = ~ 23 (4) = ~ 346 (2) = 3-position vlve, spring-centered ms position vlve ms Shifting time of the vlve from shifted position to neutrl position 3-position vlve, spring-centered ms 35 to 5 for ~ / 35 for = 2-position vlve ms Shifting time of the vlve from neutrl position to shifted position with C (~) nd DC (=) opertion t pilot pressure SI (r) ~ 5 (7) = ~ 23 (4) =~ 346 (2) = ~ 3626 (25) = 3-position vlve, spring-centered ms position vlve ms position vlve, Solenoid operted pressure-centered ms Shifting time of the vlve from shifted position to neutrl position 3-position vlve, spring-centered ms 4 to 55 for ~ / 4 for = 2-position vlve ms position vlve, from pressure-centered ms Shifting time of the vlve from neutrl position to shifted position with C (~) nd DC (=) opertion t pilot pressure SI (r) ~ 725 (5) = ~ 276 (5) = ~ 3626 (25) = 3-position vlve, spring-centered ms position vlve ms position vlve, Solenoid operted pressure-centered ms Shifting time of the vlve from shifted position to neutrl position 3-position vlve, spring-centered ms 6 to 75 for ~ / 5 for = 2-position vlve ms position vlve, from pressure-centered ms WE(H) /24 Rexroth Hydrulics

12 R 24 75/9.99 Chrcteristic curves: Model 4 WEH mesured t ν = 9 SUS (4 mm 2 /s) nd t = 22 F (5 C) () 59.5 p/q V chrcteristic curves () 45 4 (9) ressure differentil in SI (r) (8) (7) (6) (5) (4) (3) (2) 29 () (2) (4) (6) (8) () (2) (4) (6) Flow in GM (L/min) Spool Shifted position E,, D F 4 4 G, H, C J, K 2 3 L M Q, V, W, Z R U Spool Neutrl position F 3 6 G, 7 H 3 5 L U 4 Shifting performnce limits: Model 4 WEH mesured t ν = 9 SUS (4 mm 2 /s) nd t = 22 F (5 C) 2 nd 3-position vlves ermissile flow q V in GM (L/min) Operting pressure p mx in SI (r) Spool 29 (2) 3626 (25) 4569 (35) E, J, L, M, Q, R, U, V, 42.3 (6) W, C, D, K, Z, H 42.3 (6) 39.6 (5) 3.7 (2) G, 42.3 (6) 42.3 (6) 37 (4) F, 42.3 (6) 37 (4) 3.7 (2) Generl: ecuse of silting, the shifting function of the vlves is dependent upon filtrtion. o otin the mximum flow vlues shown, full filtrtion of 25 µm is recommended. he flow forces cting within the vlve lso influence performnce. In 4-wy vlves, the dt provided is for pplictions with 2 directions of flow (flow from to nd n equl, simultneous return flow from to ) (see left). If only one direction of flow is required, for exmple, when 4-wy vlve hs one port plugged, or unlnced flows from lrge rod cylinders, permissile flow in criticl cses cn e considerly lower. erformnce limits mesured with solenoids t operting temperture, % undervoltge nd without tnk port pressure. Rexroth Hydrulics 2/24 4WE(H)

13 Chrcteristic curves: Model 4 WEH 6 mesured t ν = 9 SUS (4 mm 2 /s) nd t = 22 F (5 C) R 24 75/9.99 ressure differentil in SI (r) (4) (2) () (8) (6) (4) (2) p/q V chrcteristic curves Spool (5) () (5) (2) (25) (3) Flow in GM (L/min) Shifted position E, D, 3 F G, H, C, Q, V, Z J, K, L 3 3 M, W R U 4 7 S erformnce limits: Model 4 WEH 6 mesured t ν = 9 SUS (4 mm 2 /s) nd t = 22 F (5 C) 2-position vlves ermissile flow q V in GM (L/min) re-lod vlve, required for = internl Operting pressure p mx in SI (r) Spool 5 (7) 23 (4) 346 (2) 46 (28) 576 (35) with spring offset in the min vlve ) C, D, K, Z, 79.3 (3) 79.3 (3) 79.3 (3) 79.3 (3) 79.3 (3) with spring offset in the min vlve 2) C 79.3 (3) 79.3 (3) 79.3 (3) 79.3 (3) 79.3 (3) D, 79.3 (3) 7.3 (27) 68.7 (26) 66 (25) 6.8 (23) K 79.3 (3) 66 (25) 63.4 (24) 6.8 (23) 55.5 (2) Z 79.3 (3) 68.7 (26) 5.2 (9) 47.6 (8) 42.3 (6) with hydrulic offset in the min vlve HC, HD, HK 79.3 (3) 79.3 (3) 79.3 (3) 79.3 (3) 79.3 (3) HZ, H 79.3 (3) 79.3 (3) 79.3 (3) 79.3 (3) 79.3 (3) 3-position vlves ermissile flow q V in GM (L/min) Spools C, Z up to pprox GM (6 L/min) Spools HC, HZ up to c GM (6 L/min) re-lod vlve, required for = internl Regrding the performnce limits, see Generl, pges 2, 3. ttention! When using 4/3-wy directionl vlves with spring-centering of the control spool in the min vlve, ove given performnce limits, higher pilot pressure is required. Exmple: t n operting pressure of p mx = 576 SI (35 r) nd flow of q V = 79.3 GM (3 L/min), pilot pressure of 232 SI (6 r) is required. he mximum flow for those vlves is therefore only dependent on the p vlue which is cceptle for the system. spring-centred E, H, J, L, M, 79.3 (3) 79.3 (3) 79.3 (3) 79.3 (3) 79.3 (3) Q, U, W, R Spools ) he flow vlues given re chieved F, 79.3 (3) 66 (25) 47.6 (8) 44.9 (7) 39.6 (5) F, G, H, when the minimum pilot pressure nd S G, 79.3 (3) 79.3 (3) 63.4 (24) 55.5 (2) 5.2 (9) of 74 SI (2 r) is present. in generl S 79.3 (3) 79.3 (3) 79.3 (3) 66 (25) 58. (22) 2) he flow vlues given re limiting V 79.3 (3) 66 (25) 55.5 (2) 52.8 (2) 47.6 (8) vlues t which the return spring cn pressure-centred; t min. pilot pressure of 232 SI (6 r) Spool V up to c. return the vlve when the pilot for ll spools 79.3 (3) 79.3 (3) 79.3 (3) 79.3 (3) 79.3 (3) 42.3 GM pressure fils. (6 L/min) 4WE(H) 3/24 Rexroth Hydrulics

14 R 24 75/9.99 Chrcteristic curves: Model 4 WEH 22 mesured t ν = 9 SUS (4 mm 2 /s) nd t = 22 F (5 C) (4) 23 p/q V chrcteristic curves ressure differentil in SI (r) (2) () (8) (6) (4) (2) spool R (5) () (5) (2) (25) (3) (35) (4) (45) Flow in GM (L/min) Spool Shifted position E F 2 2 G H J L M Spool Shifted position Q R 2 U V W Spool Neutrl position F 4 G 6 H 2 L U 6 erformnce limits: Model 4 WEH 22 mesured t ν = 9 SUS (4 mm 2 /s) nd t = 22 F (5 C) 2-position vlves ermissile flow q V in GM (L/min) Operting pressure p mx in SI (r) Spool 5 (7) 23 (4) 346 (2) 46 (28) 576 (35) with spring offset in the min vlve ) C, D, K, Z, 9 (45) 9 (45) 9 (45) 9 (45) 9 (45) with spring offset in the min vlve 2) C 9 (45) 9 (45) 84.5 (32) 66 (25) 52.8 (2) D, 9 (45) 9 (45) 9 (45) 6 (4) 84.5 (32) K 9 (45) 56.8 (25) 39.6 (5) 3.7 (2) 26.4 () Z 92.5 (35) 79.3 (3) 76.6 (29) 68.7 (26) 42.3 (6) with hydrulic offset in the min vlve HC, HD, HK 9 (45) 9 (45) 9 (45) 9 (45) 9 (45) HZ, H 9 (45) 9 (45) 9 (45) 9 (45) 9 (45) HC../O.. 9 (45) 9 (45) 9 (45) 9 (45) 9 (45) HD../O.. 9 (45) 9 (45) 9 (45) 9 (45) 9 (45) HK../O.. 9 (45) 9 (45) 9 (45) 9 (45) 9 (45) HZ../O.. 9 (45) 9 (45) 9 (45) 9 (45) 9 (45) HC../OF.. 9 (45) 9 (45) 9 (45) 9 (45) 9 (45) HD../OF.. 9 (45) 9 (45) 9 (45) 9 (45) 9 (45) HK../OF.. 9 (45) 9 (45) 9 (45) 9 (45) 9 (45) HZ../OF.. 9 (45) 9 (45) 9 (45) 9 (45) 9 (45) 3-position vlves ermissile flow q V in GM (L/min) spring-centered E, J, L, M, 9 (45) 9 (45) 9 (45) 9 (45) 9 (45) Q, U, W, R H 9 (45) 9 (45) 79.3 (3) 68.7 (26) 6.8 (23) G 6 (4) 92.5 (35) 66 (25) 52.8 (2) 47.6 (8) F 9 (45) 7.3 (27) 46.2 (75) 34.3 (3) 29. () V 9 (45) 79.3 (3) 63.4 (24) 58. (22) 42.3 (6) 6 (4) 79.3 (3) 63.4 (24) 52.8 (2) 42.3 (6) 9 (45) 7.3 (27) 47.6 (8) 44.9 (7) 29. () re-lod vlve, required for = internl Spool Z up to pprox GM (8 L/min) Spools HZ up to pprox GM (8 L/min) re-lod vlve, required for = internl Spools F, G, H, nd in generl, spool V up to pprox GM (8 L/min) Regrding the performnce limits, see Generl, pges 2 nd 3. ) he flow vlues given re chieved when the minimum pilot pressure of 6 or 23 SI ( or 4 r) is present. 2) he flow vlues given re limiting vlues t which the return spring cn return the vlve when the pilot pressure fils. Rexroth Hydrulics 4/24 4WE(H)

15 Chrcteristic curves: Model 4 WEH 25 mesured t ν = 9 SUS (4 mm 2 /s) nd ϑ = 22 F (5 C) ressure differentil in SI (r) (4) (2) () (8) (6) (4) (2) Spool Shifted position E 3 F G H J p/q V chrcteristic curves spool R () (2) (3) (4) (5) (6) (65) Flow in GM (L/min) Spool Shifted position L M Q R 2 Operting pressure p mx in SI (r) Spool 5 (7) 23 (4) 346 (2) 46 (28) 576 (35) with spring offset in the min vlve ) C, D, K, Z, 85 (7) 85 (7) 85 (7) 85 (7) 72 (65) with spring offset in the min vlve 2) C 85 (7) 85 (7) 85 (7) 85 (7) 72 (65) D, 85 (7) 72 (65) 6 (4) 92.5 (35) 79.3 (3) K 85 (7) 72 (65) (42) 97.7 (37) 84.5 (32) Z 85 (7) 85 (7) 72 (65) 27 (48) 6 (4) with hydrulic offset in the min vlve HC, HD, HK 85 (7) 85 (7) 85 (7) 85 (7) 85 (7) HZ, H 85 (7) 85 (7) 85 (7) 85 (7) 85 (7) HC../O.. 85 (7) 85 (7) 85 (7) 85 (7) 85 (7) HD../O.. 85 (7) 85 (7) 85 (7) 85 (7) 85 (7) HK../O.. 85 (7) 85 (7) 85 (7) 85 (7) 85 (7) HZ../O.. 85 (7) 85 (7) 85 (7) 85 (7) 85 (7) HC../OF.. 85 (7) 85 (7) 85 (7) 85 (7) 85 (7) HD../OF.. 85 (7) 85 (7) 85 (7) 85 (7) 85 (7) HK../OF.. 85 (7) 85 (7) 85 (7) 85 (7) 85 (7) HZ../OF.. 85 (7) 85 (7) 85 (7) 85 (7) 85 (7) 3-position vlves ermissile flow q V in GM (L/min) spring-centered R 24 75/ spool G centrl position 8 spool centrl position Spool Shifted position U 2 6 V W erformnce limits: Model 4 WEH 25 mesured t ν = 9 SUS (4 mm 2 /s) nd t = 22 F (5 C) 2-position vlves ermissile flow q V in GM (L/min) re-lod vlve, required for = internl Spool C in generl, spool Z up to pprox GM (8 L/min) Spool HC in generl, spool HZ up to pprox GM (8 L/min) re-lod vlve, required for =int. Regrding the performnce limits, see Generl, pges 2 nd 3. E, L, M, Q, U, W 85 (7) 85 (7) 85 (7) 85 (7) 72 (65) G, 6 (4) 6 (4) 6 (4) 6 (4) 6 (4) F 72 (65) 45 (55) 4 (43) 87.2 (33) 79.3 (3) H 85 (7) 72 (65) 45 (55) 6 (4) 95. (36) J 85 (7) 85 (7) 72 (65) 58 (6) 37 (52) 72 (65) 45 (55) 4 (43) 87.2 (33) 79.3 (3) he flow vlues given re chieved V 72 (65) 45 (55) 6 (4) 92.5 (35) 82 (3) Spools when the minimum pilot pressure R 85 (7) 85 (7) 85 (7) 72 (65) 53 (58) F, G, H, of 89 SI (3 r) is present. pressure-centered (t min. pilot pressure of 26 SI (8 r) nd E, F, H, J 85 (7) 85 (7) 85 (7) 85 (7) 72 (65) in generl, he flow vlues given re limiting L, M,, Q 85 (7) 85 (7) 85 (7) 85 (7) 72 (65) spool V vlues t which the return spring R, U, V, W 85 (7) 85 (7) 85 (7) 85 (7) 72 (65) up to pprox. cn return the vlve when the G, 6 (4) 6 (4) 6 (4) 6 (4) 6 (4) 47.6 GM pilot pressure fils. t > 435 SI (3 r) pilot pressure (8 L/min) G, 85 (7) 85 (7) 85 (7) 85 (7) 72 (65) 4WE(H) 5/24 Rexroth Hydrulics

16 R 24 75/9.99 Chrcteristic curves: Model 4 WEH 32 mesured t ν = 9 SUS (4 mm 2 /s) nd t = 22 F (5 C) erssure differntil in SI (r) (8) (6) (4) (2) () (8) (6) (4) (2) p/q V chrcteristic curves spool E, R nd W 2) ) (2) (24) (36) (48) (6) (72) (84) (96) (8) Flow in GM (L/min) erssure differntil in SI (r) (8) (6) (4) (2) () (8) (6) (4) (2) p/q V chrcteristic curves spool G nd (2) (24) (36) (48) (6) (72) (84) (96)(8) Flow in GM (L/min) erssure differntil in SI (r) (8) (6) (4) (2) () (8) (6) (4) (2) p/q V chrcteristic curves ll other spools (2) (24) (36) (48) (6) (72) (84) (96)(8) Flow in GM (L/min) ) only with spool R 2) not with spool R erformnce limits: Model 4 WEH 32 mesured t ν = 9 SUS (4 mm 2 /s) nd t = 22 F (5 C) 2-position vlves ermissile flow q V in GM (L/min) Operting pressure p mx in SI (r) Spool 5 (7) 23 (4) 346 (2) 46 (28) 576 (35) with spring offset in the min vlve ) C, D, K, Z, 29 () 275 (4) 227 (86) 98 (75) 8 (68) with spring offset in the min vlve 2) C 29 () 275 (4) 227 (86) 2 (8) 85 (7) D, 29 () 275 (4) 43 (54) 27 (48) (42) K 29 () 275 (4) 227 (86) 32 (5) 9 (45) Z 29 () 275 (4) 227 (86) 85 (7) 72 (65) with hydrulic offset in the min vlve HC, HD, HK, 29 () 275 (4) 227 (86) 98 (75) 8 (68) HZ, H 29 () 275 (4) 227 (86) 98 (75) 8 (68) 3-position vlves ermissile flow q V in GM (L/min) spring-centered E, J, L, M, 29 () 275 (4) 227 (86) 98 (75) 8 (68) Q, R, U, W G,, H, F, 238 (9) 238 (9) 2 (8) 72 (65) 9 (45) V 29 () 264 () 8 (68) 32 (5) 9 (45) pressure-centered; t min. pilot pressure of 23 SI (8.5 r) for ll spools 29 () 275 (4) 227 (86) 98 (75) 8 (68) re-lod vlve, required for = internl Spool C in generl, spool Z up to pprox GM (8 L/min) Spool HC in generl, spool HZ up to ~47.6 GM (8 L/min) re-lod vlve, required for = internl Spools F, G, H, nd in generl, spool V up to ~47.6 GM (8 L/min) Regrding the performnce limits, see Generl, pges 2 nd 3. ttention! When using 4/3-wy directionl vlves with spring-centering of the control spool in the min vlve, ove performnce limits, higher pilot pressure is required. Exmple: t n operting pressure of p mx = 576 SI (35 r) nd flow of q V = 29 GM ( L/min), pilot pressure of 28 SI (5 r) is required. he mximum flow for those vlves is therefore only dependent on the p vlue which is cceptle for the system. ) he flow vlues given re chieved when the minimum pilot pressure of 45 SI ( r) is present. 2) he flow vlues given re limiting vlues t which the return spring cn return the vlve when the pilot pressure fils. Rexroth Hydrulics 6/24 4WE(H)

17 Unit dimensions Min vlve 2 ilot vlve model 4WE 6 to dt sheet R ) ttention! Dimensions of size, 22, 25 nd 32 correspond to the stndrd vlve "6" to dt sheet R Dimensions of size 6 correspond to the stndrd vlve "6E" to dt sheet R ilot vlve model 4WE 6 D ( solenoid) for min vlves with spools C, D, K, Z nd spools HC, HD, HK, HZ ilot vlve model 4WE 6 J ( solenoid "") for min vlves with spools E, F, etc., spring return ilot vlve model 4WE 6 M ( solenoid "") for min vlves with spools HE, HF, etc., hydrulic spool return 2.2 ilot vlve model 4WE 6 ( solenoid) for min vlves with spool nd spool H ilot vlve model 4WE 6 J ( solenoid "") for min vlves with spools E, F, etc., spring return ilot vlve model 4WE 6 M ( solenoid "") for min vlves with spools HE, HF, etc., hydrulic spool return 2.3 ilot vlve model 4WE 6 J (2 solenoids) for min vlves with 3 positions, spring-centered ilot vlve model 4WE 6 M (2 solenoids) for min vlves with 3 positions, pressure-centered 3. Solenoid "" (grey plug-in connector) 3.2 Solenoid "" (lck plug-in connector) 4 Mnul override "N", optionl he mnul override cn only e operted up to tnk pressure of up to pprox. 725 SI (5 r). ke cre not to dmge the mnul override ore! R 24 75/ Solenoid withut mnul override 6 Height of connector plte for hydrulic opertion (model 4WH ) 7 Optionl pilot choke djustment, Model Z2FS 6-2-4/QV, see R ressure reducing vlve, optionl 9 Mchined vlve mounting surfce, position of ports Nmeplte for the pilot vlve Nmeplte for the entire vlve 2 R-rings/O-rings 3 Spce required to remove the plug-in connector 4 2-position vlves with spring offset in the min vlve (C, D, K, Z) 5 2-position vlves with spring offset in the min vlve () 6 3-position vlves, spring-centered; 2-position vlves with hydrulic offset in the min vlve 7 3-position vlves, pressure-centered 8 Locting pin Order no. Sel kit for min vlve NR sels FM sels Size Size Size 25 6) Size 25 7) Size ) Model 4W.H 22.7/ 7) Model 4W.H 25.6/ /F = cross Flts orts,, 3),, L 3) Size,,, 4),, L R-ring R-ring.52 x.63 x x.63 x.7 (3 x.6 x 2) (.8 x.6 x.78) 6 R-ring R-ring O-ring.887 x.9 x.3.394x.79 x x.98 (22.53 x 2.3 x 2.62) ( x 2 x 2) (22 x 2.5) 25 5) R-ring R-ring O-ring. x.2 x x.8 x.8.63 x.8 (27.8 x 2.6 x 3) (9 x 3 x 3) (27 x 3) 32 R-ring R-ring O-ring.673 x.8 x x.8 x x.8 (42.5 x 3 x 3) (9 x 3 x 3) (42 x 3) 2) High-performnce vlve "6E" 3) re-lod vlve 4,5 (not for size ) 4) Without pre-lod vlve 5) Model 4W.H 22.7/ nd model 4W.H 25.6/ 4WE(H) 7/24 Rexroth Hydrulics

18 R 24 75/9.99 Ordering code, plug-in connectors to DIN nd ISO 44 for component plug "K4" For further plug-in connectors see R 8 6 Vlve side Color Without circuitry With indictor light 2 24 V Mteril no. With indictor light nd With LED & rectifier With rectifier Z diode protective circuit V 2 24 V 24 V hred grey RR g lck RR g / lck RR RR RR RR 3995 g red/rown RR 4823 /2 N lck RR 39 /2 N / lck RR RR RR /2 N Rexroth Hydrulics 8/24 4WE(H)

19 Unit dimensions, Model 4 WEH : dimensions in inches (millimeters) R 24 75/ (27).532 (3.5) 2.87 (73) Ø.26 (6.6) Ø.433 () 2.3 (54) 2.22 (56.5).4 (25.5).96 (23).8 (46) 2.76 (7) (8) 3.73 (44).59 (5) 9.2 (229) 7.8 (98).6 (5.5) (83) g (4) (2) 3.39 (86).38 (35) (67).2 (3.5) (9) 32.4/4. in./ mm (R mx 4) 5.6 (42.5) 6.22 (58) 5.6 (42.5) 6.22 (58) Required surfce finish of interfce when mounting the vlve without our suplte orting pttern to ISO 44-5 NF 3.5. M R nd NSI 93.7 D 5 Supltes, see dt sheet R 45 54; Internlly piloted, internlly drined vlves only: G 534/5 (3/4" N); G 534/2 (SE-2; /6-2); G 535/5 (3/4" N); G 535/2 (SE-2; /6-2); G 536/5 (" N); G 536/2 (SE-6; 5/6-2); For description of numered items, see pge 7 Vlve Mounting olts 4) /4-2 UNC x 3/4" (M6 x 45 mm) (UNC olt kit # US ) Socket hed cp screws, SE grde 8 or etter ightening torque.5 l-ft (5.5 Nm) Supltes nd vlve mounting olts must e ordered seprtely Note: ilot vlve dimensions for designtion 6E (removle solenoids), see dt sheet R WE(H) 9/24 Rexroth Hydrulics

20 R 24 75/9.99 Unit dimensions, Model 4 WEH 6 : dimensions in inches (millimeters) 9.34 (34.) Ø.433 () Ø.26 (6.6) Ø.79 (8) Ø.433 ().63 (.6).472 (2) L.827 (2) 5.59 (42) 3.7 (94) 3.58 (9).97 (5) 4 (.6).63 (.6).38 (35) 2.75 (69.9).59 (5) 3.37 (85.5) g 9.93 (233.5) (43).8 (3).4/4. in./ mm 32 (R mx 4) Ø.8 (3) 8.58 (4).787 (2) Required surfce finish of interfce when mounting the vlve without our suplte 3.78 (96).748 (9) ; (27) 2.7 (55) 6. (55) 2.48 (63) 6. (55) 2.7 (55) 6.42 (63) 3.9 (8) 6. (55) orting pttern to ISO 44-7 NF 3.5. M R nd NSI 93.7 D 7 Supltes, see dt sheet R 45 56; G 72/5 (3/4" N); G 72/2 (SE-2; /6-2); G 74/5 (" N); G 74/2 (SE-6; 5/6-2); G 74/8 (3/4 ISO flnged ports) For description of numered items, see pge 7 Vlve Mounting olts 2) /4-2 UNC x 2 /4" (M6 x 6 mm) ightening torque.5 l-ft (5.5 Nm) 4) 3/8-6 UNC x 2 /4 (M x 6 mm) ightening torque 55 l-ft (75 Nm) (UNC olt kit # US ) Socket hed cp screws, SE grde 8 or etter Supltes nd vlve mounting olts must e ordered seprtely Note: ilot vlve dimensions for designtion 6E (removle solenoids), see R Rexroth Hydrulics 2/24 4WE(H)

21 Unit dimensions, Model 4 WEH 22 : dimensions in inches (millimeters) R 24 75/ (53) Ø.787 (2) Ø.55 (4).55 (4) 4.72 (2) 4.6 (7) 3.62 (92).8 (46).689 (7.5) 7.9 (8) 3.59 (5) 3.27 (83) g 3.3 (77) 5.2 (3) (4).787 (2) 4.33 ().748 (9) 2.; (.5) (4).6 (4) Ø.236 ( 6) 8.55 (4) 7.6 (93) 9.49 (24) 32.4/4. in./ mm (R mx 4) Required surfce finish of interfce when mounting the vlve without our suplte 2 orting pttern to ISO 44-8 NF 3.5. M R nd NSI 93.7 D 8 Supltes, see dt sheet R 45 58; G 53/5 (" N); G 55/2 (SE-6; 5/6-2); G 54/5 ( /4" N); G 54/2 (SE-2; 5/8-2); G 56/5 ( /2 N); G 56/2 (SE-24; 7/8-2) For description of numered items, see pge 7 Vlve Mounting olts 6) /2-3 UNC x 2 /2 (M2 x 6 mm) ightening torque 83 l-ft (2 Nm) (UNC olt kit # US ) Socket hed cp screws, SE grde 8 or etter Supltes nd vlve mounting olts must e ordered seprtely Note: ilot vlve dimensions for designtion 6E (removle solenoids), see R WE(H) 2/24 Rexroth Hydrulics

22 R 24 75/9.99 Unit dimensions, Model 4 WEH 25 : dimensions in inches (millimeters) (53) Ø.787 (2) Ø.55 (4).55 (4) 4.72 (2) 3.62 (92) 4.6 (7).83 (2) 7.68 (95) 3.3 (77) 5.2 (3) 3.59 (5) (83) 7.58 (4) 2., (9).32 (33.5) (2) 4.96 (26).58 (4).64 (4) Ø.236 (6) (9) 8.86 (225).7 (297) 2.8 (324.5) 2.8 (27.5) 3.7 (332) 2.8 (324.5) /4. in./ mm (R mx 4) Required surfce finish of interfce when mounting the vlve without our suplte orting pttern to ISO 44-8 NF 3.5. M R nd NSI 93.7 D 8 Supltes, see dt sheet R 45 58; G 53/5 (" N); G 55/2 (SE-6; 5/6-2); G 54/5 ( /4" N); G 54/2 (SE-2; 5/8-2); G 56/5 ( /2 N); G 56/2 (SE-24; 7/8-2); G 54/2 ( /4 ISO flnged ports) For description of numered items, see pge 7 Vlve Mounting olts 6) /2-3 UNC x 2 /2 (M2 x 6 mm) ightening torque 83 l-ft (2 Nm) (UNC olt kit # US ) Socket hed cp screws, SE grde 8 or etter Supltes nd vlve mounting olts must e ordered seprtely Note: ilot vlve dimensions for designtion 6E (removle solenoids), see R Rexroth Hydrulics 22/24 4WE(H)

23 Unit dimensions, Model 4 WEH 32 : dimensions in inches (millimeters) R 24 75/ (76).748 (9) 5.4 (39) 2.4 (35.5) Ø.3 (33) Ø.866 (22).87 (2.5) 7.87 (2) 7.76 (97) 6.26 (59) 3.3 (79.5).96 (23).2 (257) 4.5 (4.5) 7.5 (9.5) 3.59 (5) 3.27 (83) g (49).5 8 (4).4/4. in./ mm 32 (R mx 4) Ø.236 (6) 8.8 (3).58 (4).787 (2) Required surfce finish of interfce when mounting the vlve without our suplte ( ) 5.98 (52).748 (9) ; (2.5).28 (286.5) 4.25 (362) 5.4 (39) 5.98 (46) 3.43 (87) 2.28 (58) 2 5 orting pttern to ISO 44- NF 3.5. M R nd NSI 93.7, D Supltes, see dt sheet R 45 6; G 57/5 ( /2 N); G 57/2 (SE-24; 7/8-2); G 58/34 ( /2 ISO flnged ports) For description of numered items, see pge 7 Vlve Mounting olts 6) 3/4- UNC x 3 /4 (M2 x 8 mm) ightening torque 295/32 l-ft (4/43 Nm) (UNC olt kit # US ) Socket hed cp screws, SE grde 8 or etter Supltes nd vlve mounting olts must e ordered seprtely Note: ilot vlve dimensions for designtion 6E (removle solenoids), see R WE(H) 23/24 Rexroth Hydrulics

24 R 24 75/9.99 Notes Mnnesmnn Rexroth Corportion Rexroth Hydrulics Div., Industril, 235 City Line Rod, ethlehem, el. (6) Fx: (6) Rexroth Hydrulics Div., Moile, 7 Old Mnsfield Rod, Wooster, OH el. (33) Fx: (33) ll rights reserved Suject to revision rinted in U.S.. 24/24 4WE(H)