RA / /3-, 4/2- and 3/2-Way Directional Valves Mechanical/Model WM.6 (Series 5X) Mechanical Manual Operation 1/

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1 /3-, /- nd 3/-Wy Directionl Vlves Mechnicl/Model WM.6 (Series X) Mechnicl Mnul Oertion Size 6 (D 3).. 6 SI (3 r) GM (6 L/min) RA 8/6.98 RA 8/6.98 Relces: 6.97 Direct oerted sool tye directionl control vlves Mounts on stndrd ISO -3, NFA 3..M R nd ANSI B 93.7 D 3, interfce For sultes, see dt sheet RA 7 stndrd sool configurtions ville Aville oertor otions; roller/lunger, hnd lever, rotry hnd kno K 98-6 Mechnicl/mnul oertion Directionl control vlves model WM. re direct oerted sool vlves. hey control the strt, sto nd direction of fluid flow. hese directionl vlves consist of the housing (), n oerting element () (roller/lunger, hnd lever or rotry hnd kno), control sool (3) nd one or two return srings (). In the non-engged condition, control sool (3) is held y return srings () in the center, or sring offset, osition (or y detent with rotry hnd kno oertion). Control sool (3) moves to the required osition y mens of n oerting element (). 3 Model WMR 6 E X/.. A B () Detent Directionl vlves with rotry hnd kno oertion re sulied stndrd with detent. Hnd lever oerted vlves re ville s - or 3-osition vlves with detent. Directionl vlves with roller/ lunger oertion re sulied without detent. When using detented oertor, the control sool is held in shifted osition, so tht continuous force is not required. 3 Orifice Inserts o limit mximum flow, orifice inserts re otionlly ville. rimrily, the orifice insert is intended to revent flow rtes in excess of the mximum erformnce dt of the vlve (see ge ). he insert is instlled in the ort, however, will fit ny of the vlve orts, llowing for design flexiility. Model WMM 6 D X/F A B () 3 Model WM. 6.. X/.. B.. Model WMDA 6 E X/F A B () /8

2 RA 8/6.98 Ordering code 3 service orts = 3 service orts = Roller/lunger see = WMR Roller/lunger } ge 6 = WMU Hnd lever = WMM Rotry kno = WMD Lockle rotry hnd kno = WMDA Size 6 = 6 Sool tye e.g. C, E, EA ), EB etc.; see elow nd ge 3 for ossile sool configurtions Series to 9 ( to 9, externlly interchngele) ) Key with rt no. RR 6 98 for series to 8 8 for Series 3 is rt of suly schedule ) Exmle: Sool tye E, with control osition "" Ordering code..ea.. Sool tye E, with control osition "" Ordering code..eb.. 6 X = X * Further detils to e written in cler text No code = NBR sels, suitle for etroleum oils (HM, HL, HL) V = FM sels, (stndrd) suitle for hoshte ester fluids (HFD-R) No code = without orifice insert *B8 = orifice.3 in (.8 mm) di. *B = orifice.39 in (. mm) di. *B = orifice.7 in (. mm) di. Use if flow > vlve erformnce limit, licle in ort No code = with sring return (ville for WMR, WMU, WMM) F = with detent (ville for WMM, WMD, WMDA) * ort in which orifice(s) is instlled: B = ort R = B ort H = A ort N = A & B orts Exmle: WMM6E X/B =. orifice in. Sool tyes Ordering Code Sool /8 A, C, D B, Y E, E, F, G, H, J, L, M,,, R,, U, V, W control osition "" ) =.A control osition"" ) =.B Detent Vlve tyes WMR, WMU WMM WMD, WMDA (Roller/lunger) (Hnd lever) (Rotry kno)

3 RA 8/6.98 Sool tyes = A = C = D = B = Y 3 ) A B =.A =.B = E, EA, EB ) = E ) = F = G = H = J = L ) 3 ) Sool tye B & Y re only ville with Model WMM nd WMR/WMU ) Sool tye E = A/B oens efore A/B Note: With single rod cylinders, cre must e tken ecuse of ossile ressure intensifiction = = = R = = U = V = M = W echnicl dt (For lictions outside these rmeters, lese consult us!) Generl Instlltion osition otionl Weight ls (kg) rox. 3. (.) Hydrulic oerting ressure mx orts A, B, SI (r) 6 (3) ort : for WMM, WMD, WMDA SI (r) 3 (6) With sool tyes A or B, ort must e used s drin ort if the oerting ressure for WMR, WMU SI (r) 9 (6) is higher thn the ermissile tnk ressure. mx. volume flow GM (L/min) 6. (6) Flow section with sool tye 6% of nominl section (Control osition ) with sool tye W 3% of nominl section Hydrulic fluid etroleum oils (HM, HL,HL); hoshte ester fluids (HFD-R) Fluid temerture rnge F ( C) NBR sels ( ) FM sels (... 8) Viscosity rnge SUS (mm /s) (.8 to ) Mximum degree of fluid contmintion Clss 8/ ccording to ISO 6. herefore, we recommend filter with retention rte of ß 7. Oerting force/-torque Vlve tye WMR/WMU WMM WMD/WMDA Oerting ressure orts A, B, SI (r) 9 () 6 (3) Oerting force on roller/lunger without tnk ressure ls (N).. () 7. () with tnk ressure ls (N). (8). (96) 6. () = 87 SI (6 r) mx = ^. ls er SI (. N er r) tnk ressure Oerting torque mx. l-in (Ncm) 3.3 () Oerting force without tnk ressure ls (N). () with nd without detent r tnk ressure ls (N) 6.7 (3) Formul for clculting oerting force ls N on roller/lunger (F R ) when there is F R = F without -ressure + x. or (. ) SI r tnk ressure 3/8

4 RA 8/6.98 vs - erformnce curves, mesured t ν = 9 SUS ( mm /s) nd t = F ( C) ressure differentil SI (r) () (8) (6) () () 8 6 () () (3) () () (6) Flow GM ( L/min) Sool Flow direction tye -A -B A- B- A 3 3 B 3 3 C 3 D 3 3 E 3 3 F 3 G H J L M R 9 9 U V W Y Sool tye "R" in shifted osition A - B 8 Sool tye "G" nd "" in center osition - Vlve erformnce limits, mesured t ν = 9 SUS ( mm /s) nd t = F ( C) Becuse of silting, the shifting function of the vlves is deendent uon filtrtion. o otin the mximum flow vlues shown, full filtrtion of µm is recommended. Flow forces cting within the vlve lso influence erformnce. In -wy vlves, the dt rovided is for lictions with directions of flow (flow from to Vlve model WMR/WMU A nd n equl, simultneous return flow from B to ) (see tle). If only one direction of flow is required, for exmle, when -wy vlve hs one ort lugged, or unlnced flows with lrge rod cylinders, the ermissile flow in criticl cses my e considerly lower. he A or B sool (3-wy) cn e used s n roximtion of the limited flow erformnce. Oert. ressure SI (r) Oert. ressure SI (r) () () Flow GM (L/min) Flow GM (L/min) 6 Oert. ressure SI (r) () Flow GM (L/min) Sool tye A, B C, D, Y, E, E, H, M,, U, W 6 R G J, L 8 V 3 F, 7 /8

5 Vlve erformnce limits, mesured t ν = 9 SUS ( mm /s) nd t = F ( C) Vlve model WMM - sring return RA 8/6.98 Oert. ressure SI (r) () Flow GM (L/min) Sool tye E, E, M, J, L,, U, W, C, D, Y, G, H, R A, B 3 V F, Vlve model WMM - with detent Oert. ressure SI (r) () ; Oert. ressure SI (r) () Flow GM (L/min) Flow GM (L/min) Sool tye 3 A, B F 6 V 8 R Sool tye E, M, H, C, D, Y E, J,, L, U, W G, 7 9 Vlve model WMD/WMDA Oert. ressure SI (r) () Oert. ressure SI (r) () Flow GM (L/min) Flow GM (L/min) Sool tye E, E, M, H, C, D, Y,, U, W J, L G, 8 Sool tye 3 A, B F 6 V 7 R /8

6 RA 8/6.98 Unit dimensions: dimensions in inches (millimeters) Model WMM Model WMD.8 (7).7 () B, Y.. B... (3.8). ().9 (3) Ø.98 (). () A, C, D.. A.. 3-os. vlve.6 () -os. vlve 6 Ø.37 (9.) Ø.9 (.3).8 (7).8 () 8 9 Ø.69 (3)..B.. ) Model WMDA. (). (3) A, C, ) D 7..A. ). 3-os. vlve.8 (). (.8).9 (3) 9 () 9 ) or rotte 9 clockwise ) rotte 9 nti-clockwise.9 (3) -osition vlve.37 (3.7). (6) (38) (.). (.8) rox. 3.6 (9.) 3.7 (.).79 (8). (3) A B.8 (3.).73 () 3./. in./ mm (R mx ).9 (.).9 (.) Required surfce finish of mting surfce when mounting vlve without our sulte Model WMR.36 (6).9 (63.3).8 (6) Model WMU.9 (63.3). (.8) -os. vlve 3-os. vlve.39 (). (.8). (.8) Ø.63 (6). (.8) Nmelte orting ttern to ISO -3, NFA D 3, ANSI B 93.7 D Sultes (see RA ) G 3/ (/" N) G 3/ (SAE-6; 9/6-8) G 3/ (3/8" N) G 3/ (SAE-8; 3/-6) G / (/" N) G / (SAE-8; 3/-6) Vlve mounting olts ) - UNC x " (M x ) socket hed c screws (SAE grde 8 or etter) ightening torque 8 l-in (8.9 Nm) Sulte nd vvle mounting olts must e ordered sertely mx. 3 3 O-ring 9. mm x.78 mm R-ring 9.8 mm x. mm x.78 mm for orts A, B, nd Vlve model WMM Control osition Control osition 6 Control ositions, nd ( nd for -osition vlves) Vlve model WMD/WMDA 7 Control osition 8 Control ositions nd ( for -osition vlves) 9 Control osition Oer. ngle 9 clockwise nd 9 counterclockwise for 3-os.vlves rt No. for the key RR R Vlve model WM U Control osition Control osition nd ( for -os. vlves) 3 Control osition Overrun, my not e used s oertionl stroke 6/8

7 Ordering detils: ville sels RA 8/6.98 WMR/WMU WMM WMD/WMDA Order no. Sel kit, os. ye NBR sels FM sels WMR/WMU WMM WMD/WMDA /8

8 RA 8/6.98 Notes 8/8 Mnnesmnn Rexroth Corortion Rexroth Hydrulics Div., Industril, 3 City Line Rod, Bethlehem, A 87-3 el. (6) Fx: (6) Rexroth Hydrulics Div., Moile, 7 Old Mnsfield Rod, Wooster, OH el. (33) 63-3 Fx: (33) All rights reserved Suject to revision rinted in U.S.A.