UL 429 1/32. RA /09.10 Replaces: Directional Control Valves. Rexroth Directional Control Valves Meet UL 429 Recognized Standards

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1 Courtesy of CM/Flodyne/Hydrdyne Motion Control Hydrulic neumtic Electricl Mechnicl (8) UL 9 R 8 31/9.1 Replces:.3 Directionl Control Vlves Rexroth Directionl Control Vlves Meet UL 9 Recognized Stndrds Wht is UL 9? Underwriters Lortories Inc. is one of the most recognized nd reputle conformity ssessment providers in the world. UL 9 is the industry recognized stndrd for Electro Hydrulic vlve sfety. UL 9 recognized components re essentil in tody s world for ensuring pulic sfety nd oosting confi dence in products tht hve pssed rigorous test regimen conducted y Under-writers Lortories, Inc. UL 9 recognized directionl control vlves re ville cross our full redth of spool confi gurtions. oth direct nd pilot operted designs pply rnging from size (D3), through size (D8). Directionl control vlves re ville with oth C nd DC voltge solenoids. Refer to dt sheet R 8 31/.3 for technicl informtion regrding UL 9 recognized vlves. dvntges of UL 9 roven Rexroth qulity, reliility, nd dependility. Representtive smples of these vlves hve een evluted y UL nd meet ll sfety requirements. pproved for use in UL Listed nd/or UL Clssifi ed OEM systems. 1/3 Recognized under the Component Recognition rogrm of Underwriters Lortores, Inc. UL File MH87 he UL recognized component mrk,ul File MH87, ensures our vlves successfully meet UL stndrds for sfety. Contents ge Ordering Code... D3 Direct Operted Directionl Control Vlves...3 D5 Direct Operted Directionl Control Vlves...8 echnicl Dt (D3 & D5) Soft Shift Vlves (D3 & D5)... 1 D5 & D8 ilot Operted Directionl Control Vlves... 19

2 /3 osch Rexroth Corp. Industril Hydrulics UL 9 Recognized Directionl Control Vlves R 8 31/9.1 Courtesy of CM/Flodyne/Hydrdyne Motion Control Hydrulic neumtic Electricl Mechnicl (8) Ordering code Service orts 3-wy* = 3 (hree service ports) -wy = (Four service ports) *Not ville with pilot operted vlves Opertion Direct operted ilot operted = WE = WEH Size (D3) = 1 (D5) = 1 (D8) = Spool type (ex. C, E, etc.) for possile spool confi gurtion 3-position vlve 3-position vlve with position only 3-position vlve with position only = no code = = Series Size Series to 9* = X Size 1 Series 3 to 39* = 3X Size 1 Series to 9* = X 1) Size Series 7 to 79* = 7X *externlly interchngele Solenoid type High performnce solenoid wet-pin (oil immersed) with removle coil (Size only) High performnce dul frequency, piece, wet-pin solenoid with removle coil (Size 1 only) ilot vlve (D3), with wet-pin solenoids ilot vlve (DO3), with removle solenoids = E = C = = E C voltge 11 Volts C, Hz = W11 DC voltge V DC = G 1) Series X housing used only with D or DL centrl connection electricl option ) With internl piloting, note the minimum pilot pressure vlues, see R ) Not ville for direct operted models / N9 / S * K = D = DL = no code = V = Further detils to e written in cler text S = UL recognized vlve NR sels, suitle for petroleum oils (HM, HL, L) FM sels, suitle for phosphte ester (HFD R) no code = Without pilot pressure insert.5 = po = 5 SI (.5 r) 7 = po = 1 SI (7 r) (For spool types C, F, G, H,,, V, Z, S) For pilot operted vlves only no code = 8 = 1 = 1 = 15 = 3) no code = 1 = DK3 = DK5 = DK3L = DK5L = DKL = Orifice insert (instlled in port) Without orifi ce insert Orifi ce Ø.31 (.8 mm) Orifi ce Ø.39 (1. mm) Orifi ce Ø.7 (1. mm) Orifi ce Ø.59 (1.5 mm) Stndrd switching option Switching time dely (Size & 1, Direct operted only) (Not ville with C coils) Electricl connections Individul solenoid plug-in electricl connections without ngled plug connector(s) Centrl electricl connections erminl ox with 1/ N conduit connection erminl ox with 1/ N conduit connection nd light(s) NSI M plug-pin type connectors (without femle end) erminl ox with3-pin conn. (single solenoid) erminl ox with 5-pin conn. (doule solenoid) erminl with 3-pin conn. & light(s) (single solenoid) erminl with 5-pin conn. & light(s) (doule solenoid) erminl ox with surge suppression ilot options (ilot operted vlves only) no code = Externlly piloted, externlly drined E = Internlly piloted, externlly drined E = Internlly piloted, internlly drined ) = Externlly piloted, internlly drined Override N9 = With protected mnul overrides (stndrd E)

3 R 8 31/9.1 UL 9 Recognized Directionl Control Vlves Industril Hydrulics osch Rexroth Corp. 3/3 Courtesy of CM/Flodyne/Hydrdyne Motion Control Hydrulic neumtic Electricl Mechnicl (8) Functionl description, WE X/E Model WE E X/...E Directionl control vlves Model WE re solenoid operted directionl spool vlves. hey control the strt, stop nd direction of fl ow. hey consist of housing (1), one or two solenoids (), control spool (3) return spring(s) (). Unengged, control spool (3) is held centered, y mens of return spring(s) () (except for detented spool). Control spool (3) is shifted y wet pin solenoids (). o gurntee stisfctory opertion, ensure tht the solenoid core tue is filled with oil. Cycling the vlve will typiclly ensure core tues hve filled with oil. he force of solenoid () extends push-pin (5) ginst control spool (3), moving it left or right from neutrl position. his provides fl ow from to nd to or to nd to. When solenoid () is de-energized, control spool (3) returns to center y return springs (). Mnul override () llows ctivting the control spool (3) without electricl power () Model WE.. X/ O E... (only for spools, C nd D) his design permits switching positions with solenoids nd no detent. When the solenoids re de-energised there is no defined neutrl position. Model WE..X/ OF E... (only for spools, C nd D) his design permits switching positions with solenoids nd detent. Energizing either solenoid, however, only one t time, for pprox. 1 ms is suffi cient to shift spool (3) nd mintin position on the detent. Orifice Insert (Model WE..X/E /..) o limit mximum fl ows, orifi ce inserts re optionlly ville. rimrily, the orifi ce insert is intended to prevent fl ow rtes in excess of the mximum performnce dt of the vlve (see pge ). he insert is instlled in port, however, will fi t ny of the vlve ports. Exmple: WE E X/EGND/1 = 1. mm orifi ce in port. R ring 9.81 x 1.5 x 1.78

4 /3 osch Rexroth Corp. Industril Hydrulics UL 9 Recognized Directionl Control Vlves R 8 31/9.1 Courtesy of CM/Flodyne/Hydrdyne Motion Control Hydrulic neumtic Electricl Mechnicl (8) Directionl vlve solenoid power limits, mesured t ν = 19 SUS (1 mm /s) nd t = 1 F (5 C) ecuse of silting, the shifting function of the vlves is dependent upon fi ltrtion. o otin the mximum fl ow vlues shown, full fi ltrtion of 5 μm is recommended. he fl ow forces cting within the vlve lso infl uence performnce. In -wy vlves, the dt provided is for pplictions with directions of fl ow (fl ow from to nd n equl, simultneous return from to, see tle). If only one direction of fl ow is required, for exmple, when -wy vlve hs one port plugged, or unlnced fl ows from lrge rod cylinders, the permissile fl ow in criticl cses cn e considerly lower. he or spool (3-wy) cn e used s n pproximtion of the limited fl ow performnce. erformnce limits mesured with solenoids t operting temperture, 1 % undervoltge nd without tnk port pressure. DC solenoid C solenoid e.g. G : V e.g. W11: 11 V, Hz (see elow) Curve Symol Curve Symol 1, 1 ) 19, 1 ) V V 3, 1, F, F, 5 J 3 G, G, H, J, L, U 7 /O, /OF, L, U 5 /O, /OF, Q, W 8 C, D, Y C, D, Y 9 M 7 H 1 E,E1 ), R 3 ), C/O, C/OF 8 C/O, C/OF, D/O, D/OF, E, D/O, D/OF, Q, W E1 ), M, R 3 ) Operting pressure in SI (r) Operting pressure in SI (r) (35) (3) () (1) (35) (3) () (1) DC Solenoid C Solenoid (1) () (3) () (5) () (7) (8) Flow in GM (L/min) (1) () (3) () (5) () Flow in GM (L/min) ) With mnul override ) / pre-opening 3) Return flow from ctutor to tnk

5 R 8 31/9.1 UL 9 Recognized Directionl Control Vlves Industril Hydrulics osch Rexroth Corp. 5/3 Courtesy of CM/Flodyne/Hydrdyne Motion Control Hydrulic neumtic Electricl Mechnicl (8) Symols Model WE X/E erformnce curves, mesured t ν = 19 SUS (1 mm /s) nd t = 1 F (5 C) ressure drop in SI (r) (11) (1) (8) () () () Δp-q V -curves /O...../OF.. 8 = = C = D = = Y () () () Flow in GM (L/min) =. 1) =. = E 1) = E1- ) = F = G = H = J = L 1 ) Exmple: Spool E with switching position Order code WE E X/EW 11 NK ) Symol E1 : / pre-opening Cution: e wre of pressure intensifiction in differentil cylinders (8) = M = = Q = R = = U = V = W Symol hrough flow direction , 3 3 C D, Y E F H J, Q L M R 5 5 V W 1 1 U G 9 9

6 /3 osch Rexroth Corp. Industril Hydrulics UL 9 Recognized Directionl Control Vlves R 8 31/9.1 Courtesy of CM/Flodyne/Hydrdyne Motion Control Hydrulic neumtic Electricl Mechnicl (8) Unit dimensions, WE..X/E vlve with C solenoid: dimensions in inches (millimeters) 1.75 (.5) 3.55 (1).7 (17) 1. (5.5) (3.5) 1. (31) 8 ø.37 (9.) 1.59 (.5) 1.5 () ø.9 (5.3).59 (15) 1.77 (5) 1/" N.. (15) (15) (8.5) (9) (8.5) (3) (13.5) (13.5) (17) (1) (.5) (31) 1.8 (3.5).33 (8.5) ø.37 (9.) 1.59 (.5).7 (9) 5.7 (15.7) 8.9 (5.) øl.9 (5.3).591 (15) 5.7 (15.7).33 (8.5) (5).9 (3). (5.5) 9 3. (9) 3.8 (98) 1/" N 3.37 (85.5) 3. (91.5).55 (1) 3.1 (8.9) (3.5) Unit dimensions, WE X/E vlve with DC solenoid: dimensions in inches (millimeters) () (15) 9. (15) (8.9) (3.5) (87.8) 3.55 (87.8)

7 R 8 31/9.1 UL 9 Recognized Directionl Control Vlves Industril Hydrulics osch Rexroth Corp. 7/3 Courtesy of CM/Flodyne/Hydrdyne Motion Control Hydrulic neumtic Electricl Mechnicl (8) Unit dimensions, WE X/E vlve: dimensions in inches (millimeters) 1.1 Solenoid 1. Solenoid Mnul override N9 (stndrd) only possile mnul opertion to 75 SI (5 r). Do not dmge the mnul override ore. Hndkno prt # RR 93 my e used. 3 Dimension for solenoid with mnul override N, (ruer oot covered) Nmeplte 7 R-ring 9.81mm x 1.5mm x 1.78mm 8 Screw cp for single solenoid vlve 9 Spce required to remove plug 1 Spce required to remove coil 11 Locknut ightening torque = 35 in-ls ( Nm) 1 Mounting pttern to ISO/DIS 1-3 NF MR1 nd NSI 93.7 D 3 Supltes: G31/1 (SE-), G3/1 (SE-8), G5/1 (SE-1) to dt sheet R 5 5 nd Vlve mounting olts 1- UNC x (M5 x 5mm), ightening torque =.5 ft-ls (8.9 Nm), must e ordered seprtely. 13 Hole for locting pin, Δ.3 in (3 mm) 1 Conduit ox vrition, model D or DL./. in.1/1 mm 3 (R mx ) Required surfce fi nish of interfce when mounting the vlve without our suplte

8 8/3 osch Rexroth Corp. Industril Hydrulics UL 9 Recognized Directionl Control Vlves R 8 31/9.1 Courtesy of CM/Flodyne/Hydrdyne Motion Control Hydrulic neumtic Electricl Mechnicl (8) Functionl description, WE1 Directionl vlve (without ngled plug-in connector) model WE re solenoid ctuted directionl spool vlves. hey re used to control the strt, stop nd direction of fl ow. Directionl vlves re siclly comprised of housing (1), one or two solenoids (), control spool (3), nd one or two return springs (). In the de-energized condition, control spool (3) is held in its centrl or initil position y mens of return springs () (except for detented spools). Control spool (3) is ctuted y wet pin solenoids () "" Model WE 1 EX/CGN9K Model.WE 1.3X/OC... (only possile with symols, C nd D) his model is -position directionl vlve with solenoids nd no detent. Spool position when solenoids re de-energized is not defi ned. Model.WE 1.3X/OFC... (detented spool), with detent (only possile with symols, C nd D) his model is -position directionl vlve with solenoids nd detents. When solenoids re de-energized, the spool is held in detented position nd the solenoids do not need to e continuously energized. Crtridge throttle (model WE 1 /.../..) crtridge throttle is required, if due to operting conditions, fl ows cn occur which re higher thn the permitted performnce limits of the vlve. he throttle is inserted into the port of the directionl vlve. In order to ensure correct functioning, the solenoid pole tue must e filled with oil. Norml switching opertion is usully sufficient; however low SI check vlve my e instlled in the tnk line to ssure proper filling. he force of solenoid () cts on control spool (3) nd moves it from initil position to desired end position. his permits free fl ow from to nd to or to nd to. Upon de-energizing solenoid () control spool (3) is returned to initil position y return spring (). he optionl mnul override (5) permits control spool (3) to e moved without solenoid power. Detent "" "" Model.WE 1.3X/OFC (impulse spool) O-ring 1 x

9 R 8 31/9.1 UL 9 Recognized Directionl Control Vlves Industril Hydrulics osch Rexroth Corp. 9/3 Courtesy of CM/Flodyne/Hydrdyne Motion Control Hydrulic neumtic Electricl Mechnicl (8) Symols, WE1 /C /O.. /OF.. = = C = D = = Y = F = G = H = M =. 1) =. = E 1) = J = L 1) Exmple: Spool E with switching position Ordering detil..e.. Flow vs. pressure drop curves, WE1 /C, mesured t ν = 19 SUS (1 mm /s) nd t = 1 F (5 C) ressure differentil in SI (r) (1) (13) (1) (11) (1) (9) (8) (7) () (5) () (3) () (1) () () () (8) (1) (1) Flow in GM (L/min) = = Q = R = = U = V = W Spool Flow direction type, C 5 D, Y 7 7 E 5 5 F 1 5 G 7 8 H 7 8 J L 3 3 M Q 3 R U, V 3 3 W Cross-over pos. R 1 Center position F G, 1 H

10 1/3 osch Rexroth Corp. Industril Hydrulics UL 9 Recognized Directionl Control Vlves R 8 31/9.1 Courtesy of CM/Flodyne/Hydrdyne Motion Control Hydrulic neumtic Electricl Mechnicl (8) Operting pressure in SI (r) Operting pressure in SI (r) erformnce limits, WE1 /C mesured t ν = 19 SUS (1 mm /s) nd t = 1 F (5 C) ecuse of silting, the shifting function of the vlves is dependent upon fi ltrtion. o otin the mximum fl ow vlues shown, full fi ltrtion of 5 μm is recommended. he fl ow forces cting within the vlve lso infl uence performnce. In -wy vlves, the dt provided is for pplictions with directions of fl ow (fl ow from to nd n equl, simultneous return from to, see tle). Vlves with DC solenoids 5 If only one direction of fl ow is required, for exmple, when -wy vlve hs one port plugged, or unlnced fl ows from lrge rod cylinders, the permissile fl ow in criticl cses cn e considerly lower. he or spool (3-wy) cn e used s n pproximtion of the limited fl ow performnce. erformnce limits mesured with solenoids t operting temperture, 1 % undervoltge nd without tnk port pressure. (315) (3) (5) () (15) (1) (5) (315) (3) (5) () (15) (1) (5) Vlves with C solenoids () () () (8) (1) (1) Flow in GM (L/min) () () () (8) (1) (1) Operting pressure in SI (r) Curve Spool type 1 C, C/O, C/OF D, D/O, D/OF Y, M E 3 /O, /OF L, U, J, Q, W H 5 1 ) R G 7 8 F, 9, 1 V 1 ) Return fl ow (independent of re rtio) Curve Symols 1 C, C/O, C/OF D, D/O, D/OF Y /O, /OF 3 E M 5 V H 11 V, Hz; erformnce limits for other spools on request.

11 R 8 31/9.1 UL 9 Recognized Directionl Control Vlves Industril Hydrulics osch Rexroth Corp. 11/3 Courtesy of CM/Flodyne/Hydrdyne Motion Control Hydrulic neumtic Electricl Mechnicl (8) Unit dimensions, WE1 3X/ vlve with DC solenoids: dimensions in inches (millimeters).7 (7).9 (119). (5.5).95 (75). (15) () 7 ø. (.) (3).83.1 (5) (9) ; ø.33 (11) (1) 8.1 (91) (1). (13.5) (5.5) 8.1 (13.5).78 (18.5) 5. 8 Unit dimensions, WE1 3X/ vlve with C solenoids: dimensions in inches (millimeters) (15).9 (119) () 1.81 ().7 (7). (15) (3).83 (1) ø. (.) 7. (189).1 (5) ø.33 (11) (91) 9.57 (3) 7. (189) (18.5).83 (1).9 (17.5).95 (75).9 (17.5). (15) 1.81 () 1.81() 9 11; /" N 1.81 (). (15 ) 1.8 (13 ). (15).8 (13)

12 1/3 osch Rexroth Corp. Industril Hydrulics UL 9 Recognized Directionl Control Vlves R 8 31/9.1 Courtesy of CM/Flodyne/Hydrdyne Motion Control Hydrulic neumtic Electricl Mechnicl (8) Unit dimensions, WE1 3X/ vlve: dimensions in inches (millimeters) 1 3 position vlve without mnul override with mnul override N9 position vlve with 1 solenoid (, C, D, E...) without mnul override with mnul override N9 3 position vlve with 1 solenoid (, Y, E...) without mnul override with mnul override N9 Cover for vlve with 1 solenoid 5.1 Solenoid 5. Solenoid Spce required to remove solenoid 7 Stndrd 1/ N electricl conduit connector (suffi x ) 8 Spce required to remove plug 9 Mnul override N9 (stndrd) permissile mnul opertion only to 75 SI (5 r) tightening torque = 5.9 l-ft (8 ± Nm) do not dmge the mnul override ore. Hndkno prt # RR 93 my e used. 1 Spce required for N option 11 Nmeplte 1 5) O-Rings 1 mm x mm (for vlve with crtridge throttle) R-Rings 13 mm x 1. mm x mm 13 dditionl port () my e used in conjunction with pressure reducing vlve Model ZDR 1 D.. (R 585) when mounted on suitly drilled interfce 1 orting pttern to ISO 1-5, NF 3.5.1M R1 nd NSI 93.7 D 5 15 Conduit ox version, D 1 Conduit ox with lights, DL Supltes G /5 (3/8 N); G /1 (SE-; 9/1-18); G 7/5 (1/ N); G /1 (SE-1; 7/8-1); G 53/5 (3/ N); G 53/1 (SE-1; 1-1/1-1) Vlve mounting olts ) 1/ - UNC x 1-1/ (M x mm) socket hed cp screws (SE grde 8 or etter) ightening torque 11. l-ft (15.5 Nm) Suplte nd vlve mounting olts must e ordered seprtely, see R /. in.1/1 mm (R mx ) Required surfce fi nish of interfce when mounting the vlve without our suplte erminl connections for conduit version For 1 solenoid: Solenoid lwys to terminls 1 nd Erth to terminl For solenoids: Solenoid to terminls 1 nd Solenoid to terminls 3 nd Erth to terminl

13 R 8 31/9.1 UL 9 Recognized Directionl Control Vlves Industril Hydrulics osch Rexroth Corp. 13/3 Courtesy of CM/Flodyne/Hydrdyne Motion Control Hydrulic neumtic Electricl Mechnicl (8) Unit dimensions, WE1 X/ vlve with DC solenoids: dimensions in inches (millimeters).18 (157).7 (7).51 (11.5) 1.81 () (9.5).3 (1) (5) 3.3 (9.).13 (5) (19.1) Unit dimensions, WE1 X/ vlve with C solenoids: dimensions in inches (millimeters).18 (157).7 (7).59 (15) ().3 (1) (11.5) 3.8 (9.5) (5) 3.3 (9.).13 (5) (19.1)

14 1/3 osch Rexroth Corp. Industril Hydrulics UL 9 Recognized Directionl Control Vlves R 8 31/9.1 Courtesy of CM/Flodyne/Hydrdyne Motion Control Hydrulic neumtic Electricl Mechnicl (8) Unit dimensions, WE1 X/ vlve: dimensions in inches (millimeters) 1 3-position vlve 1) -position vlve with 1 solenoid (, C, D, E...) 1) 3 -position vlve with 1 solenoid (, Y, E...) 1) lug for vlve with 1 solenoid 1 Cle glnd 1/ N DL (g 1 DL ) 11 lug-in connector (red plug-in connector, must e ordered seprtely, mteril no. RR 5538) 1 Spce required to remove plug-in connector 13 Mnul override N9 (stndrd) the mnul override cn only e operted up to mx. tnk pressure of 75 SI (5 r) void dmge to the mnul override pin ore! 15 Nme plte 1 R-ring.51 x.3 x.79 (13 mm x 1. mm x mm) for vlves with crtridge throttle: O-ring.7 x.79 (1 mm x mm) 17 dditionl connection () cn e used with mnifolds where this connection is required, i.e. reducing vlve model ZDR1D... (see R 585). 18 orting pttern to NF/NSI 93.7 D 5, ISO 1-5 nd CEO R 11 H. Supltes: G /1 (SE-; 9/1-18), G /1 (SE-1; 7/8-1), G 53/1 (SE-1; 1-1/1-1), Vlve mounting olts ) 1/- UNC x 1-1/ (M x mm) socket hed cp screws, M = 11. l-ft (15.5 Nm) Suplte nd vlve mounting olts must e ordered seprtely, see R ightening torque M =.3 l-ft l-ft ( + Nm) 1) Dim. without mnul override nd with protected mnul override N9 ) Must e ordered seprtely, see pge 3../. in.1/1 mm 3 (R mx ) Required surfce fi nish of mting piece erminl connection for centrl ox : For 1 solenoid: Solenoid lwys to terminls 1 nd Erth to terminl E For solenoids: Solenoid to terminls 1 nd Solenoid to terminls 3 nd Erth to terminl E

15 R 8 31/9.1 UL 9 Recognized Directionl Control Vlves Industril Hydrulics osch Rexroth Corp. 15/3 Courtesy of CM/Flodyne/Hydrdyne Motion Control Hydrulic neumtic Electricl Mechnicl (8) echnicl dt (for pplictions outside these prmeters, plese consult us!) Generl Nominl size Size 1 Instlltion position optionl Mx. mient temperture F ( C) 1 (5) Weight Single solenoid vlve ls (kg) 3. (1.5) (.5) Vlve with solenoids ls (kg).3 (1.95) 13. (.1) Hydrulic Mx. operting pressure orts,, SI (r) 57 (35) 59 (315) orts SI (r) 3 (1) 3 (1) 1) ressure fl uid Minerl oil (HL, HL) to DIN 51 5 ) ; Fst io-degrdle pressure fl uids to VDM 58 (lso see R 9 1); HEG (rpe seed oil) ) ; HEG (olyglycol) 3) ; HEES (synthetic ester) 3) ; other fl uids on request ressure fl uid temperture rnge F ( C) to +17 ( 3 to +8) (for NR sels) to +17 ( to +8) (for FM sels) Viscosity rnge SUS (mm /s) 35 to 318 (.8 to 5) Degree of contmintion Mximum permissile degree of contmintion of the fl uid is to ISO Clss 18/15. We, therefore, recommend fi lter with minimum retention rte of ß Electricl DC voltge ville voltges V Voltge tolernce (nominl voltge) % ±1 ±1 ower consumption W 3 35 Duty cycle D D Switching time t S to ISO 3 ) On ms Off ms ccelertion in ft/s (m/s ) % see r chrt on pge 1 Switching frequency cyles/hr up to 7 up to 7 rotection to DIN 5 I 5 I 5 Insultion clss VDE 58 F F Mx. coil temperture 5) F ( C) 3 (15) 3 (15) Duty cycle continuous continuous Electricl 11 VC voltge Holding power V 5 9 In rush power V 55 Mx. coil temperture 5) F ( C) up to 35 (18) up to 35 (18) Shifting frequency cycles/hr up to 15, up to 15, Insultion clss H H rotection to DIN 5 I 5 I 5 Shifting time On ms Off ms ) With spools &, ort must e used s drin line if the operting pressure exceeds the permissile pressure t ort ) Suitle for NR nd FM sels 3) Only suitle for FM sels ) Slow shift option (1), switching time is pproximtely 3 to times longer thn stndrd vlve 5) Due to the occurring surfce tempertures of the solenoid coils the Europen Stndrds EN53 nd EN98 must e tken into ccount! In order to comply with sfety regultions, the erth line (E ) must e connected.

16 1/3 osch Rexroth Corp. Industril Hydrulics UL 9 Recognized Directionl Control Vlves R 8 31/9.1 Courtesy of CM/Flodyne/Hydrdyne Motion Control Hydrulic neumtic Electricl Mechnicl (8) Functionl description, Model WE 73 / /1 soft shift () Model WE directionl control vlves re solenoid operted directionl spool vlves with soft switching chrcteristics. hey control the strt, stop nd direction of fl ow. Due to the design of the vlve spool nd solenoid, shocks which occur during switching the vlve on or off re gretly reduced. he switching shocks, mesured s n ccelertion vlue in ft/s (m/s ), re reduced y up to pprox. 85 %, dependent on the spool model, when compred to stndrd vlve (see r chrt on pge 5). Essentilly the directionl control vlves consist of housing (1), one or two solenoids (), the control spool (3), nd one or two return springs (). In the de-energized condition the control spool (3) is held in the neutrl or initil position y mens of return springs () (except for impulse spool). he control spool (3) is operted y wet pin solenoids (). o gurntee stisfctory opertion, cre should e tken to ensure tht the solenoid pressure chmer is filled with oil. Symols = 73 = D73.../OF.. = D73 3) Exmple: Spool E73 with switching position ordering detils..e73.. ) Not with size 1 he force of the solenoid ( ) cts vi the plunger (5) on the control spool (3) nd pushes this from its neutrl position to the required end position. his gives free-fl ow from to nd to or to nd to. When solenoid () is de-energized, control spool (3) is returned to its neutrl position y mens of return springs (). mnul override (), llows movement of the control spool (3) without energizing the solenoid. Crtridge throttle If, due to prticulr operting conditions during the switching sequences, fl ows cn occur which re lrger thn the vlve performnce curves llow, then it is necessry to fi t crtridge throttle. his is inserted in the port of the directionl control vlve. = 73 = Y73 ccelertion in m/s ccelertion vlue % 1 8 Stndrd M =.73 3) =.73 = E73 3) = G73 = H73 = J73 = R73 = W73 ) Soft Switching F M F M = solenoid F = spring Model WE / /..

17 R 8 31/9.1 UL 9 Recognized Directionl Control Vlves Industril Hydrulics osch Rexroth Corp. 17/3 Courtesy of CM/Flodyne/Hydrdyne Motion Control Hydrulic neumtic Electricl Mechnicl (8) Chrcteristic curves, mesured t ν = 19 SUS (1 mm /s) nd t = 1 F (5 C) ressure differentil in SI (r) ressure differentil in SI (r) (11) (1) (8) () () () (15) (1) (1) (1) (8) () () () Δp-qv-chrcteristic curves, size () () () Flow in GM (L/min) Δp-qv-chrcteristic curves, size () () () (8) (9) Flow in GM (L/min) Symol Flow direction E J H /73 D/Y G R W Symol Flow direction /73 D/Y E73 G73 3 H J73 R Symol R73 in switched position (Diff.) Symol R73 in switched position (Diff.)

18 18/3 osch Rexroth Corp. Industril Hydrulics UL 9 Recognized Directionl Control Vlves R 8 31/9.1 Courtesy of CM/Flodyne/Hydrdyne Motion Control Hydrulic neumtic Electricl Mechnicl (8) Operting limits, mesured t ν = 19 SUS (1 mm /s) nd t = 1 F (5 C) ttention! he given operting limits re vlid for the use with two fl ow directions (e. g. from to nd simultneous return fl ow from to ). Due to the fl ow forces ctive inside the vlves the permissile operting limit my e signifi cntly lower if only one fl ow direction (e. g. from to nd closed port ) is used! Operting pressure in SI (r) Operting pressure in SI (r) (35) (3) (5) () (15) (1) (5) (3) (5) () (15) (1) (5) Size Size (1) () (3) () (5) () Flow in GM (L/min) () () () (8) (1) Flow in GM (L/min) (For such pplictions, plese consult us.) he operting limits were mesured with solenoids t operting temperture, 1% under voltge nd without tnk ck pressure. 5 3 Curve Symol 1 73, 73 G73 3 D73, Y73 J73 5 R73 E73, W73, D73/OF 7 H73 Curve Symol 1 73, 73 G73 3 H73 J73, D73, Y73, E73, R73, D73/OF

19 R 8 31/9.1 UL 9 Recognized Directionl Control Vlves Industril Hydrulics osch Rexroth Corp. 19/3 Courtesy of CM/Flodyne/Hydrdyne Motion Control Hydrulic neumtic Electricl Mechnicl (8) Functionl description X Y Directionl Controls Model WEH Directionl vlves Model WEH... re solenoid pilot operted spool type vlves. In the stndrd version, 3-position spools re spring centered, while -position spools re hydruliclly offset. spring offset two-position, nd hydruliclly centered threeposition, option is lso ville for most sizes. Directionl control vlves control the strt, stop nd direction of fl uid fl ow. 3-osition Vlves,Exmple WEH E-7X/... In spring centered versions, the pilot vlve vents oth chmers () to tnk in center position. his llows return springs (3) to center spool () with respect to housing (1). ilot vlve () is supplied vi pssge (7), either internlly from min port or externlly through pilot port X. When solenoid is energized, one of the two end cps () is pressurized, while the other is drined to tnk. Min spool () moves to shifted position, (fl ow pttern to nd to or to nd to ), depending on which solenoid (5) is energized. lese refer to symols on pge, 7, nd 8 for exct fl ow ptterns/solenoid reltionships. ilot vlve () cn e internlly drined through min port or externlly drined through pilot port Y. Mnul overrides re provided to operte the vlve without electriclly energizing the solenoid. For three-position vlves (except sizes 1 nd ), hydrulic centered option is ville (not shown). In this model, hydrulic centering requires oth end cp chmers () e pressurized in the non-energized condition. n L drin port (not shown) is provided through the min vlve interfce. D C C D Model WH Connection plte -osition Vlves, Exmple WEH C7X/... In this model, the min spool () is normlly hydruliclly offset y -position pilot vlve (). he end cp chmers () re supplied without springs (3). he pilot vlve my e -position, single solenoid (spool type D ); -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, -position min spool (not shown) is lso ville. his option ssures the position of the min spool () 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 WH... Directionl control vlves Model WH... re identicl to Model WEH... except tht the solenoid operted pilot vlve () is replced y cover plte (1). he cover plte connects pilot port X to chmer () on port side nd pilot port Y to chmer on the port side. ilot pressure on port X provides shifted position, while pilot pressure on port Y provides shifted position. During system design, plese consider the following: o chieve center position, the spring centered version requires venting oth end cp chmers (). he pressure centered version requires pressuriztion of oth end cp chmers (); nd two-position hydruliclly offset versions, spool () position cn only e ssured y mintining pilot pressure on either X or port Y.

20 /3 osch Rexroth Corp. Industril Hydrulics UL 9 Recognized Directionl Control Vlves R 8 31/9.1 Courtesy of CM/Flodyne/Hydrdyne Motion Control Hydrulic neumtic Electricl Mechnicl (8) Functionl description /3-wy directionl vlve with pressure centring of the min control spool, type WEH H he min control spool () in the min vlve is held in the neutrl position y pressuristion of the two front fces. centring sleeve (1) 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 () is moved to the shifted position. he unloded spool re displces the returning pilot oil vi the pilot vlve into the Y chnnel (externl). D X Y C C D

21 R 8 31/9.1 UL 9 Recognized Directionl Control Vlves Industril Hydrulics osch Rexroth Corp. 1/3 Courtesy of CM/Flodyne/Hydrdyne Motion Control Hydrulic neumtic Electricl Mechnicl (8) Spool symols (to ISO 119) WEH.. E.xx/ WEH.. HD.xx/OF WEH.. D.xx/OF WEH.. D.xx/ WH WEH WH WEH 1) Exmple: spool E, -position vlve with position only (solenoid on side ) Order exmple: H-WEH HE7X/GNESZ..1..V.., X, Y, X, Y = C = D = K = Z, X, Y = -position min vlve with single solenoid pilot = -position min vlve with detented pilot, min stge hydruliclly offset = -position min vlve with detented pilot, min stge spring offset = -position min vlve with single solenoid pilot, min stge spring offset = Y../....H../..../....H../....H../O..H../OF../..../....H../.. WH WEH, X, Y, y, X = Y../....H../... * ). H../.. H. H. = E 1) = F = G = H = J = L = M = = Q = R = = U = V = W

22 /3 osch Rexroth Corp. Industril Hydrulics UL 9 Recognized Directionl Control Vlves R 8 31/9.1 Courtesy of CM/Flodyne/Hydrdyne Motion Control Hydrulic neumtic Electricl Mechnicl (8) ilot fluid supply WEH ll Rexroth solenoid pilot operted directionl vlves re fi eld 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. WEH/ (no designtion = externl pilot nd externl drin) his model is externlly piloted vi port X nd externlly drined vi port Y. ll internl plugs (1), (11) re instlled. WEH/...E (E = internl pilot nd externl drin) ilot fl uid is supplied internlly from, while externlly drined through port Y. ort X in the suplte must e plugged. WEH/... ( = externl pilot nd internl drin) his model is externlly piloted through port X nd internlly drined to port. ort Y in the suplte must e plugged. WEH/...E (E = internl pilot nd internl drin) On this model, pilot fl uid supply is internl from port nd the drin is internl through port. oth ports X nd Y in the suplte re plugged. Note: See R 5 5 (size 1) nd R 5 58 (size ) for suplte vilility nd port sizes. Item (1) nd () M plug, requires 3 mm llen wrench ilot orifice insert (option 8, 1, 1, 15) o limit mximum fl ow, orifi ce inserts re optionlly ville. rimrily, the orifi ce insert is intended to prevent fl ow rtes in excess of the mximum performnce dt of the pilot vlve (see pge 9). For this purpose the insert is instlled in the port however, will fi t ny of the ports, llowing for design fl exiility. ilot vlve, model with orifi ce insert, 1, 1,... Min vlve Size 1 Section XY Section ilot vlve Y Min vlve ilot fl uid supply ilot fl uid drin externl: plugged externl: 1 plugged internl: open internl: 1 open Size (model W.H.7X/ ) Section E E ilot vlve Min vlve 1 Y X ilot oil supply ilot oil drin externl: plugged externl: 1 plugged internl: open internl: 1 open 1

23 R 8 31/9.1 UL 9 Recognized Directionl Control Vlves Industril Hydrulics osch Rexroth Corp. 3/3 Courtesy of CM/Flodyne/Hydrdyne Motion Control Hydrulic neumtic Electricl Mechnicl (8) Flow re: spools Q, V, W in center position Flow re in center position in (cm) Spool type Vlve size nd flow pth 1 Q. (13).11 (78). (13).11 (78) V. (13).113 (73). (13).113 (73). (13).13 (8). (13).13 (8) W.37 (.).155 (1).37 (.).155 (1) Simplified nd detiled symol for 3-position vlves (to DIN ISO 119) X = externl; Y = externl X = internl; Y = externl X = internl; Y = internl X = externl; Y = internl Spring centered vlve, X, Y X Y, X, Y X Y, X, Y X Y, X, Y X Y Model WEH../.. X Model WEH../..E.. Model WEH../..E.. Model WEH../... X Y Y

24 /3 osch Rexroth Corp. Industril Hydrulics R 8 31/9.1 UL 9 Recognized Directionl Control Vlves Simplified nd detiled symols for -position vlves (to DIN ISO 119) Model WEH.../... Model WEH..H.../... Model WEH..H.../OF... Model WEH..H.../O... Model WEH.../...E... Model WEH..H.../...E... Model WEH..H.../O...E... Model WEH..H.../OF...E... Model WEH.../...E... Model WEH..H.../...E... Model WEH..H.../O...E... Model WEH..H.../OF...E... Model WEH.../... Model WEH..H.../... Model WEH..H.../O... Model WEH..H.../OF... X = externl Y = externl X = internl Y = internl X = internl Y = externl X = externl Y = internl X Y, X, Y X Y, X, Y X Y, X, Y X Y, X, Y X Y, X, Y X Y, X, Y X Y, X, Y X Y, X, Y X Y, X, Y X Y, X, Y X Y, X, Y X Y, X, Y X Y, X, Y X Y, X, Y X Y, X, Y X Y, X, Y X Y X Y X Y X Y Y Y Y X X X X Courtesy of CM/Flodyne/Hydrdyne Motion Control Hydrulic neumtic Electricl Mechnicl (8) -58

25 R 8 31/9.1 UL 9 Recognized Directionl Control Vlves Industril Hydrulics osch Rexroth Corp. 5/3 Courtesy of CM/Flodyne/Hydrdyne Motion Control Hydrulic neumtic Electricl Mechnicl (8) echnicl dt (For pplictions outside these prmeters, plese consult us!) Sizes 1 Operting pressure, mx. ort,, Model WEH SI (r) (8) (8) Model H-WEH SI (r) 575 (35) 575 (35) ort (externlly drined) SI (r) 57 (315) 35 (5) (internlly drined) SI (r) 3 (1) with DC solenoids SI (r) 15 (1) with C solenoids ort Y (externlly drined) 1) with DC solenoids, ype E solenoids ) SI (r) 3 (1) 3 (1) with DC solenoids, ype solenoids 7) SI (r) 3 (1) 3 (1) with C solenoids, ype E solenoids ) SI (r) 3 (1) 3 (1) with DC solenoids, ype solenoids 7) SI (r) 15 (1) 15 (1) Model WH SI (r) 35 (5) 35 (1) Mximum pilot pressure* SI (r) 35 (5) 35 (1) *for higher pilot pressure, pressure reducing vlve is required Mximum pilot pressure 5) externlly piloted, internlly drined H-W.. W.. (pplicle with spools: C, F, G, H,,, V, Z, S ) ) 3-position vlve, spring centered SI (r) 15 (1) 18 (1.5) 15 (1.5) 3-position vlve, hydruliclly centered SI (r) -position vlve, with spring offset SI (r) 15 (1) 5 (1) 1 (11) -position vlve, with hydrulic offset SI (r) 1 (7) 115 (8) internlly piloted (pplicle with spools, C, F, G, H,,, V, Z, S ) ) 5 (.5) ) 5 (.5) ) Hydrulic fluid etroleum oils (HM, HL, HL) hosphte ester fl uids (HFD-R) Fluid temperture rnge F ( C) NR sels: to +17 (_3 to +8) FM sels: to +17 (_ to +8) Viscosity rnge SUS (mm /s) 35 to 3 (.8 to 5) Mximum degree of fluid contmintion Clss 18/15 ccording to ISO. herefore, we recommend fi lter with minimum retention rte of ß1 75. ilot fluid volume for vlve opertion 3-position vlve, spring centered in 3 (cm 3 ).1 (.. (7. -position vlve in 3 (cm 3 ).9 (.8).93 (15.8) ilot fluid flow qv (pprox.) for shortest shifting time GM (L/min) 9. (35) 9. (35) Weight (pprox.) Vlve with 1 solenoid ls (kg) 1.1 (.) 5. (11.5) Vlve with solenoids, spring centered ls (kg) 15 (.8). (11.9) Vlve with solenoids, hydruliclly centered ls (kg) 15 (.8). (11.9) Hydruliclly operted (WH ) ls (kg) 1.1 (5.5) 3.1 (1.5) ilot choke djustment ls (kg) 1.8 (.8) 1.8 (.8) ressure rtio vlve ls (kg) 1.1 (.5) 1.1 (5) 1) In 3-position vlve, hydrulic centering is only possile if p pilot x p tnk + p pilot min ) Spool S only ville with size 1 vlve 3) Internlly piloted vlves with spool types C, F, G, H,,, V, Z will only shift if the fl ow from to in the center position (3-position vlves) or during spool crossover (-position vlves) is lrge enough tht the pressure drop from to reches minimum of 95 SI (.5 r), which is required to shift the pilot vlve. ) For spools C, F, G, H,,, V, Z, S ) (with pilot pressure insert or considerly high fl ows) 5) Externl pilot for closed center vlves is greter thn the???? center vlves, requied due to pressure nd fl ow infl uences during shift. ) For pilot vlves with removele solenoids E 7) For pilot vlves with wet pin solenoids,

26 /3 osch Rexroth Corp. Industril Hydrulics UL 9 Recognized Directionl Control Vlves R 8 31/9.1 Courtesy of CM/Flodyne/Hydrdyne Motion Control Hydrulic neumtic Electricl Mechnicl (8) Size Size 1 echnicl dt, operting time 1) (For pplictions outside these prmeters, plese consult us!) Operting time of vlve from center to shifted position (for C nd DC solenoids) 1) with pilot pressure of SI (r) C 115 (7) DC C 3 (1) DC C 35 (1) DC C 35 (5) DC 3-position vlves, spring centered ms position vlves ms Operting time of vlve from shifted ck to center position 3-position vlves, spring centered ms 3 -position vlves ms Operting time of vlve from center to shifted position (for C nd DC solenoids) 1) with pilot pressure of SI (r) C 51 (35) DC C 115 (7) DC C 3 (1) DC C 35 (1) DC 3-position vlves, spring centered ms position vlves ms Operting time of vlve from shifted ck to center position 3-position vlves, spring centered ms 35 to 5 for C / 35 for DC -position vlves ms

27 R 8 31/9.1 UL 9 Recognized Directionl Control Vlves Industril Hydrulics osch Rexroth Corp. 7/3 Courtesy of CM/Flodyne/Hydrdyne Motion Control Hydrulic neumtic Electricl Mechnicl (8) Δp-q v curves, Model WEH 1, mesured t ν = 19 SUS (1 mm /s) nd t = 1 F (5 C) ressure drop Δp in SI (r) (11) (1) (8) () () () Spool Shifted position type E, Y, D 5 F 1 1 G, H, C 1 J, K L 3 1 M Q, V, W, Z 3 5 R 3 5 U ower limits, Model WEH 1, mesured t ν = 19 SUS (1 mm /s) nd t = 1 F (5 C) Flow q V in GM (L/min)* Operting pressure in SI (r) spool types 9 () 35 (5) 57 (315) E, J, L, M, Q, R, U, V, W, * (1) C, D, K, Z, Y H * (1) (15) 3 (1) G, * (1) (1) 37 (1) F, * (1) 37 (1) 3 (1) 1 3 () (8) (1) (1) Flow q v in GM (L/min) 7 Spool Centrl position type F 3 G, 7 H L U Generl: ecuse of silting, the shifting function of the vlves is dependent upon fi ltrtion. o otin the mximum fl ow vlues shown, full fi ltrtion of 5 μm is recommended. he fl ow forces cting within the vlve lso infl uence performnce. In -wy vlves, the dt provided is for pplictions with directions of fl ow (fl ow from to nd n equl, simultneous return fl ow from to ) (see left). If only one direction of fl ow is required, for exmple, when -wy vlve hs one port plugged, or unlnced fl ows from lrge rod cylinders, permissile fl ow in criticl cses cn e considerly lower. erformnce limits mesured with solenoids t operting temperture, 1% undervoltge nd without tnk port pressure

28 8/3 osch Rexroth Corp. Industril Hydrulics UL 9 Recognized Directionl Control Vlves R 8 31/9.1 Courtesy of CM/Flodyne/Hydrdyne Motion Control Hydrulic neumtic Electricl Mechnicl (8) Δp-q v Curves, Model WEH, mesured t n = 19 SUS (1 mm /s) nd t = 1 F (5 C) Spool Shifted position type E 1 F 1 1 G H 1 3 J 1 3 L 1 M 1 ressure drop Δp in SI (r) (1) (1) (1) (8) () () () ower limits, Model WEH, mesured t ν = 19 SUS (1 mm /s) nd t = 1 F (5 C) See Generl on pge 11 lso. Flow in GM (L/min) * 3-position vlve SI (r) Spool types 115 (7) 3 (1) 35 (1) (8) 575 (35) E, H, J, L, M, 119 (5) 119 (5) 119 (5) 119 (5) 119 (5) Q, U, W, R * H * 119 (5) 119 (5) 8 (3) 9 () 1 (3) G * 1 () 9 (35) 7 (5) 53 () 7 (18) F * 119 (5) 71 (7) (175) 3 (13) 9 (11) V * 119 (5) 8 (3) 3 () 58 () (1) * 1 () 8 (3) 3 () 53 () (1) ilot pressure insert (,5) required for internlly piloted models with these spools Spool type: C-G- F-G-H * 119 (5) 71 (7) 7 (18) 5 (17) 9 (11) -position vlve with min spool spring offset Spool type: V, Z to 1) C, D, K, Z, Y * 119 (5) 119 (5) 119 (5) 119 (5) 119 (5) pprox. -position vlve with min spool spring offset 7 GM ) C * 119 (5) 119 (5) 8 (3) (5) 53 () (18 L/min) D,Y * 119 (5) 119 (5) 119 (5) 1 () 8 (3) K * 119 (5) 57 (15) (15) 3 (1) (1) Z * 9 (35) 8 (3) 77 (9) 9 (5) (1) Spool Shifted position type 1 Q 1 R 1 1 U 1 V 1 W 1 3 Spool type R Spool Neutrl position type F G H L 5 U (1) () (3) () Flow q v in GM (L/min) Flow in GM (L/min) * -position vlve no springs on min spool SI (r) Spool types 115 (7) 3 (1) 35 (1) (8) 575 (35) HC-HD-HK 119 (5) 119 (5) 119 (5) 119 (5) 119 (5) HZ-HY * HC../O.. * 119 (5) 119 (5) 119 (5) 119 (5) 119 (5) HD../O.. * HK../O.. * HZ../O.. * HC../OF.. * 119 (5) 119 (5) 119 (5) 119 (5) 119 (5) HD../OF.. * HK../OF.. * HZ../OF.. * ilot pressure insert (.5) required for internlly piloted models with these spools Spool type: HC/HZ to pprox. 7 GM (18 L/min) 1) he fl ow vlues shown re otined with minimum pilot pressure of 1 or 3 SI (11 or 1 r). ) he fl ow vlues shown re limiting vlues t which the spring would return the vlve to its strting positon should pilot pressure fil. 3 1 (5)

29 R 8 31/9.1 UL 9 Recognized Directionl Control Vlves Industril Hydrulics osch Rexroth Corp. 9/3 Courtesy of CM/Flodyne/Hydrdyne Motion Control Hydrulic neumtic Electricl Mechnicl (8) Unit dimensions, NG1, Model WEH 1* :dimensions in millimeters (inches) orting pttern to ISO 1-5 NF M R1 nd NSI 93.7 D 5 Supltes, see dt sheet R 5 5; Internlly piloted, internlly drined vlves only: G 53/5 (3/ N); G 53/1 (SE-1; 1 1/1-1); G 535/5 (3/ N); G 535/1 (SE-1; 1 1/1-1); G 53/5 (1 N); G 53/1 (SE-1; 1 5/1-1); For description of numered items, see pge 3 * - show with DC solenoids Vlve Mounting olts ) 1/- UNC x 1 3/ (M x 5 mm) (UNC olt kit # US ) Socket hed cp screws, SE grde 8 or etter ightening torque 11.5 l-ft (15.5 Nm) Supltes nd vlve mounting olts must e ordered seprtely Note: ilot vlve dimensions for designtion ; for E (removle solenoids), see dt sheet R 3 178

30 3/3 osch Rexroth Corp. Industril Hydrulics UL 9 Recognized Directionl Control Vlves R 8 31/9.1 Courtesy of CM/Flodyne/Hydrdyne Motion Control Hydrulic neumtic Electricl Mechnicl (8) Unit dimensions, NG5, Model W.H * : dimensions in millimeters (inches) orting pttern to ISO 1-8 NF M R1 nd NSI 93.7 D 8 Supltes, see dt sheet R 5 58; G 153/5 (1 N); G 155/1 (SE-1; 1 5/1-1); G 15/5 (1 1/ N); G 15/1 (SE-; 1 5/8-); G 15/5 (1 1/ N); G 15/1 (SE-; 1 7/8-) For description of numered items, see pge 3 * - show with DC solenoids Vlve Mounting olts ) 1/-13 UNC x 1/ (M1 x mm) ightening torque 83 l-ft (11 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 E (removle solenoids), see R 3 178

31 R 8 31/9.1 UL 9 Recognized Directionl Control Vlves Industril Hydrulics osch Rexroth Corp. 31/3 Courtesy of CM/Flodyne/Hydrdyne Motion Control Hydrulic neumtic Electricl Mechnicl (8) Unit dimensions, Model WEH... : dimensions in millimeters (inches) 1 Min vlve ilot vlve Model WE, to dt sheet R with ngled plug(s) Z5 for other electricl connections, see dt sheet R 8 3 ilot vlve Model WE DX/.E... is used with the min spools C, D, K, Z nd HC, HD, HK, HZ ilot vlve Model WE JX/.E... is used with the min spools E, F etc. ilot vlve Model WE MX/.E... is used with the min spool HE, HF etc. ilot vlve Model WE YX/.E... is used with the min spool Y nd HY ilot vlve Model WE JX/.E... is used with the min spools E, F etc. ilot vlve Model WE MX/.E... is used with the min spool HE, HF etc. 5 ilot vlve Model WE JX/.E... is used with ll 3 position spring centered spools ilot vlve Model WE MX/.E... is used with ll 3 position hydrulic centered spools Optionl mnul override, see opertionl dt, ge, Item, or R Height of interconnecting cover plte for hydruliclly operted vlves 8 Mchined vlve mounting fce 9 Interfce port pttern relted to directionl vlve min stge 1 Nmeplte for pilot vlve 11 Nmeplte for complete vlve 1 O-Rings for ports Size 1 Size,,, x.5 7x3 X, Y 1x 19x3 R-Rings for ports Size 1 Size,,, 13x1.x. 7.8x.x3. X, Y 11.18x1.x x3x3 Note: /F = wrench size cross fl ts Required surfce fi nish of interfce when mounting the vlve without our surplte./. in.1/1 mm 3 (R mx )

32 3/3 osch Rexroth Corp. Industril Hydrulics UL 9 Recognized Directionl Control Vlves R 8 31/9.1 Courtesy of CM/Flodyne/Hydrdyne Motion Control Hydrulic neumtic Electricl Mechnicl (8) osch Rexroth Corp. Industril Hydrulics 315 City Line Rod ethlehem, US elephone (1) 9-83 Fcsimile (1) osch Rexroth Corportion ll rights reserved. Neither this document nor ny prt of it my e reproduced, duplicted circulted or disseminted, whether y copy, electronic formt or ny other mens, without the prior consent nd uthoriztion of osch Rexroth Cor po r tion. he dt nd illustrtions in this rochure/dt sheet re intended only to descrie or depict the products. No representtion or wrrnty, either express or implied, relting to merchntility or fi tness for intended use, is given or intended y virtue of the informtion contined in this rochure/dt sheet. he informtion contined in this rochure/dt sheet in no wy relieves the user of it oligtion to insure the proper use of the products for specifi c use or ppliction. ll products contined in this rochure/dt sheet re suject to norml wer nd ter from usge. Suject to chnge.