4/2, 4/3 and 5/2, 5/3 proportional directional valves, pilot operated, without electrical position feedback Types.WRZ,.WRZE und.

Transcription

1 RE 9 /. Replces:. /, / nd /, / proportionl directionl vlves, pilot operted, without electricl position feedck ypes.wrz,.wrze und.wrh Nominl sizes, 6,,, Series 7 Mximum operting pressure r Mximum flow 8 L/min H//D 7/97 yp WRZ -7/6EGN9 K /M with plug-in connector nd ssocited control electronics (seprte order) Overview of contents Contents ge Fetures Ordering detils nd referred types Symols Function, section 6 nd 7 echnicl dt 8 nd 9 Electricl connections Integrted control electronics Chrcteristic curves to 6 Unit dimensions 7 to ilot oil supply, throttle insert Fetures H//D 78/97 ype WRZE -7/6EGN9 K /M with integrted control electronics ilot operted -stge proportionl directionl vlve for the control of direction nd rte of flow roportionl solenoid opertion, with centrl thred nd removle coil For suplte mounting: orting pttern to DIN prt form, ISO nd CEO-RH (WRZ, NS to ) orting pttern to DIN prt form (WRZ, NS ) Supltes to ctlogue sheets RE to RE 6 (seprte order), see pges 7 to Hnd override, optionl Spring centred control spool ype WRZE with integrted control electronics, interfce or F Externl control electronics for type WRZ: nlogue mplifier type V-VS--/ in Eurocrd formt (seprte order), see pge 9 Digitl mplifier type V-VSD--/ in Eurocrd formt (seprte order), see pge 9 nlogue mplifier types V 8 nd V of modulr design (seprte order), see pge 9 y osch Rexroth G, Industril Hydrulics, D-978 Lohr m Min ll rights reserved. No prt of this document my e reproduced or stored, processed, duplicted or circulted using electronic systems, in ny form or y ny mens, without the prior written uthoristion of osch Rexroth G. In the event of contrvention of the ove provisions, the contrvening prty is oliged to py compenstion. his document ws prepred with the gretest of cre, nd ll stements hve een exmined for correctness. his document is suject to ltertions for reson of the continuing further developments of products. No liility cn e ccepted for ny incorrect or incomplete sttements..wrz;.wrze;.wrh / RE 9 /.

2 Ordering detils for WRZ nd WRH; NS to suplte mounting; NS flnge connections Hydrulic = H opertion Electro-hydrulic = Z opertion Only for WRZ: for externl = No code electronics With integrted electronics = E Nominl size = Nominl size 6 = 6 Nominl size = Nominl size = Nominl size = Symols WR _ 7 / / = E E- = E- = W6- W8- = W9- = E = W6 With symols E- nd W8-: to : q V mx to : q V / to : q V / to : q V mx With symols E- nd W9-: to : q V mx to : closed to : q V / to : q V mx (Regenrtive circuit, se of spool t port ) Note: With spools W6-, W8-, W9-, W6 in their switched position "", there is connection from to nd to with n opening of less thn % of the relevnt cross-section. ) Suitle for minerl oil (HL, HL) to DIN ) Omitted for WRH nd WRZ without pilot vlve ) With version "J" "N" insted of "N9" ) With version "J" = se wter resistnt only "K" ) For detils regrding the se wter resistnce see RE 9 -M Specil electricl protection on request! * Further detils in cler text M = ) NR sels V = FKM sels No code = Without pressure reducing vlve D = ) With pressure reducing vlve ZDR 6 D-/YM-W8 (fixed setting) No code = For WRH nd WRZ for WRZE: = Com. vlue input ± V F = Com. vlue input to m Electricl connection only for WRZ: K =, ) Without plug-in connector with component plug to DIN EN 7-8 lug-in connector seprte order, see pge For WRZE: K =, ) Without plug-in connector with component plug to E DIN 6-M6- lug-in connector seprte order, see pge ilot oil supply nd drin No code = Externl pilot oil supply, externl pilot oil drin E = Internl pilot oil supply, externl pilot oil drin E = Internl pilot oil supply, internl pilot oil drin = Externl pilot oil supply, internl pilot oil drin (for NS nd type WRH only possile without code) No code = Without specil protection J = ) Se wter resistnt No code = Without hnd override N9 =, ) With protected hnd override Electronic control supply voltge G = ) V DC (stndrd version) 6E = ) roportionl solenoid with removle coil No code = For suplte mounting F = For flnge mounting (only NS ) 7 = Series 7 to 79 (7 to 79: unchnged instlltion nd connection dimensions) Nominl flow in L/m with vlve pressure differentil p = r = = 8 = For nominl size = = For nominl size 6 = = For nominl size 6 = = For nominl size = For nominl size RE 9 /. /.98 /.WRZ;.WRZE;.WRH

3 Ordering detils for WRZ nd WRH ; suplte mounting WR _ 7 / / * Hydrulic opertion = H Electro-hydrulic = Z opertion Only for WRZ: For externl = No code control electronics With integrted control electronics = E Nominl size = Symols R R = E E- = E- = W6- W8- = W9- = E = W6 With symols E- nd W8-: to : q V = L/min to : q V = L/min to : q V = L/min to R: q V = L/min With symols E- nd W9-: to : q V = L/min to : closed to : q V = L/min to R: q V = L/min (Regenertive circuit, se of spool t port ) Note: ilot oil supply nd drin only possile externlly With spools W6-, W8-, W9-, W6 in their switched position "", there is connection from to nd to with n opening of less thn % of the relevnt cross-section. Further detils in cler text M = ) NR sels V = FKM sels No code = Without pressure reducing vlve D = ) With pressure reducing vlve ZDR 6 D-/YM-W8 (fixed setting) No code = For WRZ nd WRH For WRZE: = Com. vlue input ± V F = Com. vlue input to m Electricl connections only for WRZ: K =, ) Without plug-in connector with component plug to DIN EN 7-8 lug-in connector seprte order, see pge For WRZE: K =, ) Without plug-in connector with component plug to E DIN 6-M6- lug-in connector seprte order, see pge No code = Without specil protection J = ) Se wter resistnt No code = Without hnd override N9 =, ) With protected hnd override Electronic control supply voltge G = ) V DC 6E = ) roportionl solenoid with removle coil 7 = Series 7 to 79 (7 to 79: unchnged instlltion nd connection dimensions) Nominl flow with vlve pressure differentil p = r = L/min ) Suitle for minerl oil (HL, HL) to DIN ) Omitted for WRH nd WRZ without pilot vlve ) With version "J" "N" insted of "N9" ) With version "J" = se wter resistnt only "K" ) For detils regrding the se wter resistnce see RE 9 -M Specil electricl protection on request!.wrz;.wrze;.wrh / RE 9 /. /.98

4 referred types NS Mteril No. ype 96 WRZE E--7/6EGEK/DM 96 WRZE E--7/6EGEK/DM 96 WRZE E-8-7/6EGEK/DM 966 WRZE E-7/6EGEK/DM 967 WRZE E-7/6EGEK/DM 968 WRZE E8-7/6EGEK/DM 96 WRZE E8-7/6EGEK/M 96 WRZE E-7/6EGEK/DM 96 WRZE E8-7/6EGEK/DM 967 WRZE W8--7/6EGEK/DM 968 WRZE W8-8-7/6EGEK/DM 969 WRZE W6--7/6EGEK/DM 96 WRZE W6-8-7/6EGEK/DM 96 WRZE W6-8-7/6EGK/DM NS Mteril No. ype 9668 WRZE E--7/6EGEK/DM 9669 WRZE E--7/6EGEK/DM 967 WRZE E-7/6EGEK/DM 967 WRZE E-7/6EGK/M 967 WRZE E-7/6EGEK/DM 967 WRZE E-7/6EGK/DM 967 WRZE E-7/6EGEK/M 967 WRZE W8--7/6EGK/DM 9678 WRZE W8--7/6EGEK/DM 9679 WRZE W6--7/6EGEK/DM 968 WRZE W6--7/6EGK/M 968 WRZE W6--7/6EGEK/DM NS 6 Mteril No. ype 96 WRZE 6 E--7/6EGEK/DM 966 WRZE 6 E--7/6EGEK/DM 967 WRZE 6 E-7/6EGEK/DM 968 WRZE 6 E-7/6EGN9K/M 969 WRZE 6 E-7/6EGEK/DM 966 WRZE 6 E-7/6EGK/DM 966 WRZE 6 E-7/6EGEK/M 966 WRZE 6 W8--7/6EGK/DM 966 WRZE 6 W8--7/6EGEK/DM 966 WRZE 6 W6--7/6EGEK/DM 966 WRZE 6 W6--7/6EGK/M 9666 WRZE 6 W6--7/6EGEK/DM NS Mteril No. ype 969 WRZE E-6-7/6EGEK/DM 969 WRZE E--7/6EGEK/DM 969 WRZE E6-7/6EGEK/DM 9696 WRZE E6-7/6EGK/M 9697 WRZE E-7/6EGEK/DM 9698 WRZE E-7/6EGK/DM 9699 WRZE E-7/6EGEK/M 97 WRZE W8-6-7/6EGK/DM 97 WRZE W8--7/6EGEK/DM 97 WRZE W6-6-7/6EGEK/DM 97 WRZE W6--7/6EGK/M 97 WRZE W6--7/6EGEK/DM RE 9 /.98 /.WRZ;.WRZE;.WRH

5 Symols (simplified) With electro-hydrulic opertion nd for externl control electronics ype WRZ -7./ nd ype WRZ -7F/ Y = externl Y = externl ype WRZ -7./ nd ype WRZ -7F/ Y ype WRZ -7./ R Y ype WRZ -7./ E = externl Y = externl = internl Y = internl ype WRZ -7./ Y R ype WRZ. -7./ E With electro-hydrulic opertion nd for integrted control electronics ype WRZE -7./ nd ype WRZE -7F/ ype WRZE -7./ nd ype WRZE -7F/ ype WRZE -7./ R ype WRZE -7./ E Y Y = externl Y = externl = externl Y = externl = internl Y = internl Y ype WRZE -7./ Y R ype WRZE. -7./ E With hydrulic opertion ype WRH -7./ nd ype WRH -7F/,, Y ype WRH -7.,, Y R = externl Y = externl = externl Y = externl ype WRH -7./ nd ype WRH -7F/, Y ype WRH -7./, R Y.WRZ;.WRZE;.WRH / RE 9 /.98

6 Function, section ilot vlve type DRE 6 he pilot vlve is proportionl solenoid operted -wy pressure reducing vlve. It is used to convert n electricl input signl into proportionl pressure output signl nd is used on ll WRZ nd WRZ vlves. he proportionl solenoids re controllle DC wet pin solenoids with centrl thred nd removle coil. he solenoid is optionlly controlled y externl control electronics (type.wrz) or vi integrted control electronics (type.wrze). Design: he vlve siclly comprises of: Housing () with connection interfce Control spool () with pressure mesuring spools ( nd ) Solenoids ( nd 6) with centrl thred Optionlly with integrted control electronics (7) Functionl description: With the solenoids ( nd 6) in the de-energised condition the control spool () is held in the centre position y springs Direct opertion of the control spool () y energising one of the proportionl solenoids, e.g. solenoid "" energised () Movement of the pressure mesuring spool () nd control spool () to the left in proportion to the electricl input signl he connection from to nd to is vi orifice type cross-sections with progressive flow chrcteristics De-energistion of the solenoid () he control spool () is returned to the centre position vi the springs In the centre position ports nd re open to, therefore the pressure fluid cn flow unhindered to the reservoir. 6 "" "" ype DRE hrottle insert, see pge "" "" ype DREE 6 Vlve with two switching positions (type DRE 6 ) he function of this version of the vlve is siclly the sme s tht of the vlve with three switching positions. he position vlves re however only fitted with solenoid "" (). plug (8) is fitted in plce of the nd proportionl solenoid. RE 9 /.98 6/.WRZ;.WRZE;.WRH Note for type DRE 6: Drining of the tnk line is to e prevented. With pproprite instlltion conditions suitle ck pressure vlve is to e fitted (ck pressure pprox. r).

7 Function, section ilot operted proportionl directionl vlve ypes WRZ nd WRZ he type WRZ... vlves re pilot operted -wy vlves tht re operted vi proportionl solenoids. hey control the direction nd rte of flow. he type WRZ vlves hve n dditionl R connection. Design: he vlve siclly comprises of: ilot vlve (9) with proportionl solenoids ( nd 6) Min vlve () with min spool () nd centering spring () Functionl description: With the solenoids ( nd 6) in the de-energised condition the control spool () is held in the centre position y the centering springs () he min spool () is operted vi the pilot vlve (9) the min spool is moved proportionlly, e.g. energistion of solenoid "" (6) Movement of the min spool () to the right, pilot oil flows vi the pilot vlve (9) into the pressure chmer () nd moves the min spool () in proportion to the electricl input signl he connection from to nd to is vi orifice type crosssections with progressive flow chrcteristics he pilot oil supply to the pilot vlve is internl vi port or externl vi port De-energistion of the solenoid (6) he control spool () nd pilot spool () re moved ck into their centre positions Flow which is dependent on the switched position is either from to nd to (R) or to nd to (R). n optionl hnd override ( nd ), mkes it possile to move the pilot spool () without energising the solenoids. ttention! Unintended use of the hnd override cn led to uncontrolled mchine movements! 6 9 "" "" ype WRZE -7/ roportionl vlves with externl pilot opertion ypes WRH nd WRH he type.wrh vlves re pilot operted proportionl directionl vlves for externl opertion vi pressure control vlves. Design: he vlve siclly comprises of: Min vlve () with min spool () nd centering spring () Inter-connecting plte (6) Functionl description: he inter-connecting plte (6) connects the pilot connection with connection (Y) nd pilot connection with () he pilot pressure t the min vlve must not exceed r (6 r for NS )! Y ype.wrh -7/ 6.WRZ;.WRZE;.WRH 7/ RE 9 /.98

8 echnicl dt (for pplictions outside these prmeters, plese consult us!) Generl Vlve type WRZ WRZE Instlltion Optionl, preferly horizontl (for commissioning guidelines see RE 7 8) Storge temperture C to + 8 C mient temperture rnge C to + 7 to + Weights for Suplte mounting NS kg 7.8 version NS 6 kg..wrz NS kg 8. (for.wrze NS kg. dditionlly NS kg 79.. kg) Flnge connections NS kg 77. Hydrulic (mesured with HL6, ϑ oil = C ± C nd p = r) Nominl size NS 6 Operting pressure ilot vlve, ilot oil supply externl r to to ilot oil supply internl r to only to only with "D" with "D" Min vlve r Up to Up to Up to Up to Up to Return line ort (port R) r Up to Up to Up to Up to Up to (pilot oil drin externl) ort r Up to Up to Up to Up to (pilot oil drin internl) ort Y r Up to Up to Up to Up to Up to ilot oil volume cm for spool movement % ilot oil flow t ports nd Y L/min for stepped form of input signl % Flow through min vlve L/min Up to 7 Up to 6 Up to 87 Up to 6 Up to 8 ressure fluid Minerl oil (HL, HL) to DIN further pressure fluids on request! ressure fluid temperture rnge C to + 8 (preferly + to + ) Viscosity rnge mm /s to 8 (preferly to 6) Degree of contmintion Mximum permissile degree filter with minimum of contmintion of the retention rte of pressure fluid is to NS 68 ß 7 is recommended ilot vlve Clss 7 x = Min vlve Clss 9 x = Hysteresis % 6 RE 9 /.98 /. 8/.WRZ;.WRZE;.WRH

9 echnicl dt (for pplictions outside these prmeters, plese consult us!) Electricl Vlve type WRZ ) WRZE rotection I6 with mounted nd fixed plug-in connector Voltge type DC Commnd vlue overlp % Mx. current.. Solenoid coil Cold vlue t C Ω.8 resistnce Mx. wrm vlue Ω 7. Duty % Coil temperture ) C Up to Electricl connections WRZ With component plug to DIN EN 7-8 lug-in connector to DIN EN 7-8 ) WRZE With component plug to E DIN 6-M6- lug-in connector E DIN 6-F6-/g ) Control electronics Integrted control electronics for type WRZE Integrted in the vlve, see pges nd Current consumption I mx,8 Impulse current Commnd vlue signl Voltge input "" V ± Suitle for type WRZE Current input "F" m to nlogue commnd vlue crd ) V-SWK--/ to ctlogue sheet RE V-SWKD--/ to ctlogue sheet RE nlogue commnd vlue module ) V-SWM--/ to ctlogue sheet RE 9 9 Externl control electronics for type WRZ V-SWMK--/ to ctlogue sheet RE 9 9 nlogue mplifier With rmp time V- VS--/, to ctlogue sheet RE In Eurocrd formt ) With rmp times V- VS--/, to ctlogue sheet RE Digitl mplifier in Eurocrd formt ) V-VSD--/, to ctlogue sheet RE nlogue mplifier of modulr design ) V 8-/, to ctlogue sheet RE 8 Note: V -/, to ctlogue sheet RE 9 77 ) With osch Rexroth control electronics ) Seprte order ) Due to the occuring surfce temperture of the solenoid coils, the Europen Stndrds EN 6 nd EN 98 must e tken into ccount! For detils regrding the environmentl simultion test covering EMC (electro-mgnetic comptiility), climte nd mechnicl loding see RE 9 -U (declrtion regrding environmentl comptiility)..wrz;.wrze;.wrh 9/ RD RE 9 /. /.98

10 Electricl connections, plug-in connectors (Dimensions in mm) For type.wrz (for externl control electronics not for version J = se wter resistnt) Connection t component plug Connection t plug-in connector E E E E o mplifier o mplifier lug-in connector to DIN EN 7-8 Solenoid, colour grey Seprte order under Mteril No. 768 Solenoid, colour lck Seprte order under Mteril No , 6 7, For type.wrze (with integrted control electronics nd for version "J" = se wter resistnt) lug-in connector to E DIN 6-F6-/g Seprte order under Mteril No. 67 (plstic version) For pin lloction see lock circuit digrm on pge 9 Ø7 Ø, lug lloction for version "J" = se wter resistnt C D E F Externl control electronics Slot lloc. C D E F E Connect with Solenoid Solenoid Solenoid Solenoid n.. n.. Vlve housing lug-in connector to E DIN 6-F6-/g. Seprte order under Mteril No. 89 (metl version) For pin lloction see lock circuit digrm on pge Ø6, C D F E 8 Ø8 Ø, RE 9 /. /.98 /.WRZ;.WRZE;.WRH

11 Integrted control electronics for type WRZE Component plug pin lloction Integrted control electronics (see elow) C D E F Slot lloc. Signl ower VDC (9 to VDC) supply GND C n.. ) Differentil D Com. vlue (± V / to m) mplifier input E Ref. potentil F n.. ) Commnd vlue: positive commnd vlue ( to V or to m) t D nd reference potentil t E results in flow from to nd to. negtive commnd vlue ( to V or to m) t D nd reference potentil t E results in flow from to nd to. For vlves with solenoid on side (spool vrint E nd W6) with the reference potentil t E nd positive commnd vlue t D ( to V or to m) results in flow from to nd to. Connection cle: Recommended: Up to m cle length, type LiYCY x.7 mm Up to m cle length, type LiYCY x. mm Outside dimeter 6. to mm or 8 to. mm Only ttch screen to E on the supply side. ) Slots C nd F must not e connected! lock circuit digrm / connection lloction for the integrted electronics Interfce Integrted control electronics Vlve Commnd vlue Ref. potentil D E Differentil mplifier U U Rmp genertor ) Summtor Output stge ) U I Under voltge recognition Step function genertor Interlock Output stge ) U I Supply voltge: V GND Erth, ) E ower supply U U + U i V U i ) Connection E is connected to cooling ody nd vlve housing ) Erth is screwed to vlve housing nd cover ) Rmps cn e externlly djusted from to. s up nd down ) Current controlled output stges ).WRZ;.WRZE;.WRH / RE 9 /. /.98

12 Chrcteristic curves (mesured with spools E, W6-, E, W6 nd HL6, ϑ oil = C ± C nd p = r) NS L/min nominl flow with r vlve pressure differentil 8 / p = r constnt 6 or p = r constnt / p = r constnt p = r constnt p = r constnt Flow in L/min L/min nominl flow with r vlve pressure differentil p = r constnt p = r constnt p = r constnt p = r constnt p = r constnt Flow in L/min 6 7 Commnd vlue in % Commnd vlue in % 8 L/min nominl flow with r vlve pressure differentil 7 p = r constnt / p = r constnt or p = r constnt / p = r constnt p = r constnt Commnd vlue in % p = vlve pressure differentil to DIN (input pressure p minus lod pressure p L minus return line pressure p ) Flow in L/min / or / rnsient function with stepped form of electricl input signt p St = r ype WRZ Signl chnge in % Stroke in % 7 7 ype WRZE 6 8 ime in ms 6 8 ime in ms Signl chnge in % Stroke in % ime in ms 6 8 ime in ms RE 9 /. /.98 /.WRZ;.WRZE;.WRH

13 Chrcteristic curves (mesured with spools E, W6-, E, W6 nd HL6, ϑ oil = C ± C nd p = r) NS 6 L/min nominl flow with r vlve pressure differentil 8 / p = r constnt or p = r constnt / p = r constnt 6 p = r constnt p = r constnt Commnd vlue in % p = r constnt p = r constnt p = r constnt p = r constnt p = r constnt Flow in L/min L/min nominl flow with r vlve pressue differentil Flow in L/min 6 / or / Commnd vlue in % p = vlve pressure differentil to DIN (input pressure p minus lod pressure p L minus return line pressure p ) rnsient function with stepped form of electricl input signl p St = r ype WRZ Signl chnge in % Stroke in % 7 7 ype WRZE ime in ms ime in ms Signl chnge in % Stroke in % ime in ms 6 9 ime in ms.wrz;.wrze;.wrh / RE 9 /. /.98

14 Chrcteristic curves (mesured with spools E, W6-, E, W6 nd HL6, ϑ oil = C ± C nd p = r) NS L/min nominl flow with r vlve pressure differentil p = r constnt p = r constnt p = r constnt p = r constnt p = r constnt Flow in L/min 8 7 / 6 or / 6 7 Commnd vlue in % 8 9 L/min nominl flow with r vlve pressure differentil p = r constnt p = r constnt p = r constnt p = r constnt p = r constnt Flow in L/min / or / Commnd vlue in % p = vlve pressure differentil to DIN (input pressure p minus lod pressure p L minus return line pressure p ) rnsient function with stepped form of electricl input signl, mesured t p St = r ype WRZ Signl chnge in % Stroke in % 7 7 ype WRZE 6 8 ime in ms 6 8 ime in ms Signl chnge in % Stroke in % ime in ms 6 8 ime in ms RE 9 /. /.98 /.WRZ;.WRZE;.WRH

15 Chrcteristic curves (mesured with spools E, W6-, E, W6 nd HL6, ϑ oil = C ± C nd p = r) NS 6 L/min nominl flow with r vlve pressure differentil p = r constnt p = r constnt p = r constnt p = r constnt p = r constnt p = r constnt p = r constnt p = r constnt p = r constnt p = r constnt Flow in L/min / or / L/min nominl flow with r vlve pressure differentil Flow in L/min Commnd vlue in % / or / Commnd vlue in % p = vlve pressure differentil to DIN (input pressure p minus lod pressure p L minus return line pressure p ) rnsient function with stepped form of electricl input singl, mesured t p St = r ype WRZ Signl chnge in % Stroke in % 7 7 ype WRZE 8 6 ime in ms Signl chnge in % 8 6 ime in ms Stroke in % ime in ms 8 6 ime in ms.wrz;.wrze;.wrh / RE 9 /.98 /.

16 Chrcteristic curves (mesured with spools E, W6-, E, W6 nd HL6, ϑ oil = C ± C nd p = r) NS L/min nominl flow with r vlve pressure differentil p = r constnt p = r constnt p = r constnt p = r constnt p = r constnt 8 6 / or / Flow in L/min Commnd vlue in % p = vlve pressure differentil to DIN (input pressure p minus lod pressure p L minus return line pressure p ) rnsient function with stepped form of electricl input signl, mesured t p St = r ype.wrz Signl chnge in % Stroke in % 7 7 ype.wrze ime in ms ime in ms Signl chnge in % Stroke in % ime in ms 6 ime in ms 8 RE 9 /. /.98 6/.WRZ;.WRZE;.WRH

17 Unit dimensions: (Dimensions in mm) NS g 8 86, 87 g "" 7 6, "" without pressure reducing vlve 9 with D Ø Ø 6,6 6, 7 7,9 6, , Y 7, 8 Supltes to ctlogue sheet RE nd vlve fixing screws must e ordered seprtely. Supltes: G / (G /) without ports nd Y G / (G /) with ports nd Y G 6/ (G ) with ports nd Y Vlve fixing screws: off M6 x DIN 9-.9; M =. Nm Min vlve ilot vlve Dim. for version WRZ (not se wter resistnt) Dim. for version WRZE roportionl solenoid 6 roportionl solenoid 7 lug-in connector, seprte order, see pge 8 lug-in connector, seprte order, see pge 9 lug-in connector to E-DIN 6, seprte order, see pge rotected hnd override N9,/mm R mx Required surfce finish of mting piece For section detils see pge. Cover for vlve with one solenoid Nme plte for pilot vlve Nme plte for min vlve Integrted control electronics ressure reducing vlve 6 R-ring x.6 x ; ports,,, 7 R-ring.8 x.6 x.78; ports, Y 8 Spce required to remove plug-in connector 9 Inter-connecting plte (type WRH ) Mchined vlve mounting fce, connection loctions to DIN form, ISO nd CEO-RH (, Y s required).wrz;.wrze;.wrh 7/ RE 9 /. /.98

18 Unit dimensions: (Dimensions in mm) NS ,6 69,9,6, 87 g "", Y 7, 7 9, 7 Ø Ø 6,6,6 Y "" Ø 8 Ø g 8 6, Ø 8 Y 8 without pressure reducing vlve with D 9 Supltes to ctlogue sheet RE 6 nd vlve fixing screws must e ordered seprtely. Supltes: G 7/ (G /) G 7/ (M7 x ) G 7/ (G ) G 7/ (M x ) G 7/8 (flnge) Vlve fixing screws: off M6 x 6 DIN 9-.9; M =. Nm off M x 6 DIN 9-.9; M = 7 Nm Min vlve ilot vlve Dim. for version WRZ (not se wter resistnt) Dim. for version WRZE roportionl solenoid 6 roportionl solenoid 7 lug-in connector, seprte order, see pge 8 lug-in connector, seprte order, see pge 9 lug-in connector to E-DIN 6, seprte order, see pge,/mm R mx Required surfce finish of mting piece For section detils see pge. rotected hnd override N9 Cover for vlve with one solenoid Nme plte for pilot vlve Nme plte for min vlve Intergrted control electronics ressure reducing vlve 6 R-ring. x. x.6; ports,,, 7 R-ring x x ; ports, Y 8 Spce required to remove plug-in connector 9 Inter-connecting plte (type WRH ) Mchined vlve mounting fce, connection loctions to DIN form, ISO nd CEO-RH Locting pin RE 9 /. /.98 8/.WRZ;.WRZE;.WRH

19 Unit dimensions: (Dimensions in mm) NS g 8 6 6, 87 g "" 7 6, "" 7 9 Ø Ø 8 without pressure reducing vlve with D Ø Y 6 Y 9 Supltes to ctlogue sheet RE 8 nd vlve fixing screws must e ordered seprtely. Supltes: G / (G ) G / (G /); G /8 (flnge) G 6/ (G /) Vlve fixing screws: 6 off M x 6 DIN 9-.9; M = Nm Min vlve ilot vlve Dim. for version WRZ (not se wter resistnt) Dim. for version WRZE roportionl solenoid 6 roportionl solenoid 7 lug-in connector, seprte order, see pge 8 lug-in connector, seprte order, see pge 9 lug-in connector to E-DIN 6, seprte order, see pge,/mm R mx Required surfce finish of mting piece For section detils see pge. rotected hnd override N9 Cover for vlve with one solenoid Nme plte for pilot vlve Nme plte for min vlve Integrted control electronics ressure reducing vlve 6 R-ring 7.8 x.6 x ; ports,,, 7 R-ring 9 x x ; ports, Y 8 Spce required to remove plug-in connector 9 Inter-connecting plte (type WRH ) Mchined vlve mounting fce, connection loctions to DIN rorm, ISO nd CEO-RH Locting pin.wrz;.wrze;.wrh 9/ RE 9 /. /.98

20 Unit dimensions: (Dimensions in mm) NS , 87 g "" 7 6, "" g 7 Ø Ø without pressure reducing vlve 9 with D 76, 7 Ø Y Y 9 79,, 9,, 7 Supltes to ctlogue sheet RE 6 nd vlve fixing screws must e ordered seprtely. Supltes: G 7/ (G /) G 8/ (flnge) G 7/ (M8 x ) Vlve fixing screws: 6 off M x 8 DIN 9-.9; M = Nm Min vlve ilot vlve Dim. for version WRZ (not se wter resistnt) Dim. for version WRZE roportionl solenoid 6 roportionl solenoid 7 lug-in connector, seprte order, see pge 8 lug-in connector, seprte order, see pge 9 lug-in connector to E-DIN 6, seprte order, see pge,/mm R mx Required surfce finish of mting piece For section detils see pge. rotected hnd override N9 Cover for vlve with one solenoid Nme plte for pilot vlve Nme plte for min vlve Integrted control electronics ressure reducing vlve 6 R-ring. x x ; ports,,, 7 R-ring 9 x x ; ports, Y 8 Spce required to remove plug-in connector 9 Inter-connecting plte (type WRH ) Mchined vlve mounting fce, connection loctions to DIN form, ISO nd CEO-RH Locting pin RE 9 /. /.98 /.WRZ;.WRZE;.WRH

21 Unit dimensions: (suplte mounting) (Dimensions in mm) NS 6 7, g g "" 7 6, "" , 6,, 7, 77, 6, 7,, 7, 6 6 Y R R 7 Ø 6 M 86 mx. Ø 9 Vlve fixing screws (7 off; length is dependent on the mteril of the djoining prt) M x 9 DIN 9-.9; M = 6 Nm (for steel) or M x DIN 9-.9; M = 6 Nm (for cst iron) must e ordered seprtely. 8 8, 8 9, Ø 68 Ø,,/mm R mx Required surfce finish of mting piece without pressure reducing vlve 86. with D Min vlve ilot vlve Dim. for version WRZ (not se wter resistnt) Dim. for version WRZE roportionl solenoid 6 roportionl solenoid 7 lug-in connector, seprte order, see pge 8 lug-in connector, seprte order, see pge 9 lug-in connector to E DIN 6, seprte order, see pge rotected hnd override N9 Cover for vlve with one solenoid Nme plte for pilot vlve Nme plte for min vlve Integrted control electronics R-ring. x. x.; ports,,,, R 6 R-ring 8.6 x. x.; ports, Y, L 7 Spce required to remove plug-in connector 8 Inter-connecting plte (type WRH ) 9 Mchined vlve mounting fce, connection loctions to DIN form, ISO nd CEO-RH dptor plte Lifting eye.wrz;.wrze;.wrh / RE 9 /. /.98

22 Unit dimensions: (flnge connection) (Dimensions in mm) NS , 9, 7, 87 g g M6; 8 7 6, "" "" without pressure reducing vlve. with D Ø 66 Ø Ø Ø 7 6 Supltes to ctlogue sheet RE nd vlve fixing screws off M x 7 DIN 9-.9; M = Nm must e ordered seprtely. 8 Min vlve ilot vlve Dim. for version WRZ (not se wter resistnt) Dim. for version WRZE roportionl solenoid 6 roportionl solenoid 7 lug-in connector, seprte order, see pge 8 lug-in connector, seprte order, see pge Y 9 lug-in connector to E DIN 6, seprte order, see pge rotected hnd override N9 Cover for vlve with one solenoid Nme plte for pilot vlve Nme plte for min vlve Integrted control electronics Spce required to remove plug-in connector 6 Inter-connecting plte (type WRH ) 7 dptor plte 8 Lifting eye RE 9 /. /.98 /.WRZ;.WRZE;.WRH

23 ilot oil supply ype WRZ - / nd ilot oil supply externl ype WRH - / ilot oil drin externl With this version the pilot oil supply is from seprte control circuit (externl). he pilot oil drin is not vi the line in the min vlve, ut is routed seprtely into the tnk vi port Y (externl). ype WRZ - / E ilot oil supply internl ilot oil drin externl With this version the pilot oil supply is from the line in the min vlve (internl). he pilot oil drin is not vi the line in the min vlve, ut is routed seprtely into the tnk vi port Y (externl). ort hs to e plugged on the suplte. ype WRZ - / E ilot oil supply internl ilot oil drin internl On this version the pilot oil supply is from the line in the min vlve (internl). he pilot oil drin is directly into the line of the min vlve (internl). orts nd Y hve to e plugged on the suplte. ype WRZ - / ilot oil supply externl ilot oil drin internl On this version the pilot oil supply is from seprted control circuit (externl). ilot oil drins directly into the line in the min vlve (internl). ort Y hs to e plugged on the suplte. ositions nd : lug M6 DIN /F NS For section loction see pge 7 NS 6 For section loction see pge 8 Section ilot vlve Min vlve Section Y Y Section Y Section Min vlve Cover ilot oil supply externl: closed (section ) internl: open ilot oil drin externl: closed (section ) internl: open ilot oil supply externl: closed (section ) internl: open ilot oil drin externl: closed (section ) internl: open NS For section loction see pge 9 Cover Section Min vlve ilot oil supply externl: closed (section ) internl: open ilot oil drin externl: closed (section ) internl: open Section ilot vlve Y NS For section loction see pge Section ilot vlve Y ilot oil supply externl: closed internl: open ilot oil drin externl: closed intern: open Min vlve lug-in throttle vlves When using proportionl directionl vlve type WRZ the following plug-in throttle inserts should e used in lines nd of the pilot vlve: NS 6 Ø in mm.8..8 Mteril No WRZ;.WRZE;.WRH / RE 9 /6.99 /.98

24 Notes osch Rexroth G Industril Hydrulics D-978 Lohr m Min Zum Eisengießer D-9786 Lohr m Min elefon 9 / 8- elefx 9 / 8-8 elex emil documenttion@rexroth.de Internet osch Rexroth Limited Cromwell Rod, St Neots, Cms, E9 ES el: 8/ 6 Fx: 8/ 9 E-mil: info@rexroth.co.uk he dt specified ove only serve to descrie the product. No sttements concerning certin condition or suitility for cetin ppliction cn e derived from our informtion. It must e rememered tht our products re suject to nturl process of wer nd geing. RE 9 /. /.WRZ;.WRZE;.WRH