2-way cartridge valves-pressure functions Cartridge valves type LC... Control covers type LFA...

Transcription

1 2-wy crtridge vlves-pressure functions Crtridge vlves type LC... Control covers type LF... Nominl size 6 to Series 6; 7 Mximum operting pressure 2 br Mximum flow 7 L/min H//D 93 Crtridge vlve type LC 2 DE-7 Control cover with mnul pressure djustment, electricl unloding type LF 2 DW2-7/3 with built-on directionl vlve. Overview of contents Description ge Function, section, symbols Generl 2 ressure relief function 2 ressure reducing function 2 to 3 ressure sequencing function 3 Cvity nd porting pttern ressure relief function: Crtridge vlve type LC. D : Ordering detils Symbols echnicl dt Chrcteristic curves 6 to Sel kits 2 Compression springs 2 Control cover type LF. D : Ordering detils (generl) 3 to echnicl dt ilot vlves Symbols (bsic symbols) 6 R-rings for pilot oil connections 7 Sel kits 7 Fixing screws 7 Orifice dimensions 7 Ordering detils, symbols nd unit dimensions: ype D 8 to 2 ypes DW; DS 2 to 2 ype DWD 26 to 28 ype DU2 29 to 32 ype DU3D 33 to 37 ype DE 38 ype DEM 39 to 2 Description ge ressure reducing function: Crtridge vlve type LC. DR : Ordering detils 3 Symbol 3 echnicl dt 3 Chrcteristic curves to 6 Sel kits 7 Compression springs 7 Control cover type LF. DR : Ordering detils (generl) 8 Symbol 8 echnicl dt 9 ilot vlve 9 Symbols (bsic symbols) R-rings for the pilot oil connections Fixing screws Generl dimensions 2 Ordering detils, symbols nd unit dimensions: ype DR 3 to ype DRW to 6 ypes DREV; DREZ 7 to 8 ypes DREWV; DREWZ 9 to 6 ressure sequencing function: Control cover type LF. DZ : Ordering detils (generl) 6 Symbols (bsic symbols) 6 echnicl dt 62 R-rings for pilot oil connections 62 Sel kits 63 Fixing screws 63 Orifice dimensions 63 Ordering detils, symbols nd unit dimensions: ype DZ 6 to 6 ype DZW 66 to 67

2 Function, section, symbols Generl he 2-wy crtridge vlves for pressure control functions re pilot operted poppet or spool vlves. he min component designed s crtridge vlve ( is inserted in cvity bore stndrdised to DIN ISO 7368 nd is seled by control cover (2). he pilot vlve () for either mnul or electricl proportionl pressure control is integrted into the control cover (2) or mounted onto the control cover s pilot vlve with interfce connections to DIN 2 3 (2). y combining the crtridge vlve with the control covers different pressure functions cn be relised LC..D.D... LC..D.E... ressure relief function Control cover type LF..D... Crtridge vlve type LC..D... he crtridge vlve ( for the pressure relief function (type LC. D ) is poppet vlve without n re differentil (no effective re t port ). he pressure cting t port is fed vi the pilot oil spply orifice () to the spring side (6) of the element. t pressures below the setting of pilot vlve () the forces on spool (3) re blnced nd the spool remins closed due to the spring force. On reching the set pressure, spool (3) opens nd limits the pressure t port in line with the pressure-flow chrcteristics. ** ype LF..D... ype LC..D... ressure reducing function ) Normlly open: Control cover type LF..D... Crtridge vlve type LC..DR... he crtridge vlve for the pressure reducing function is spool vlve without n re differentil (no effective re t port ). he sme types of cover re used s pilot vlves s re used for the pressure relief functions (type LF..D...). he pressure cting t port is fed to the spring side of the spool vi the pilot oil supply orifice. elow the performnce limit nd pressure set t the pilot vlve, the spool is pressure blnced nd is held open by the spring force, so tht oil is free to flow from port to port. On reching the set pressure, the spool closes nd reduces the pressure t port in line with the pressure-flow chrcteristics. ** e.g. ype LF..D... ype LC..DR...

3 Function, symbols b) Normlly closed: Control cover type LF..DR... Crtridge vlve type LC..DD... For the pressure reducing function with opening chrcteristics pressure relief vlve crtridge (type LC..DD...) nd control cover with pressure reducing vlve (type LF..DR...) s the pilot vlve re used. he pilot oil is fed from port vi the pilot supply orifice nd the open pressure reducing pilot vlve to side. he min spool opens nd llows free flow from port to port. On reching the set pressure, the spool closes nd reduces the pressure t port in line with the pressure-flow chrcteristics. ossible excess pressures occurring on the secondry side re led wy to tnk vi the third port of the pilot vlve. y fitting directionl vlve, n dditionl isolting function cn lso be ttined (type LF..DRW...). ** M e.g. ype LF..DR... ype LC..DD... ressure sequencing function Control cover type LF..DZ... Crtridge vlve type LC..D... his function enbles pressure-dependent sequencing of second system. he required sequencing pressure is set by the pilot vlve which is integrted into the control cover. he pilot oil supply my be either externl (pilot oil port ) or internl (from port vi pilot oil port or ). he spring chmber of the pilot control is drined t zero pressure vi ports or to tnk. When the pressure set t the pilot control spring is reched, the pilot vlve switches nd unlods the spring chmber of the min vlve to tnk. he min spools opens nd mkes the connection from port to possible. In model LF..DZW..., the required spool position my be selected by mens of n electriclly operted pilot vlve (not included within the supply of control cover LF..DZW...) in ddition to the norml hydrulic control. ypicl circuits Exmple : (Circuit for the pressure dependent unloding of the low pressure system) In the circuit shown, the system is fed by high pressure pump nd low pressure pump. he system pressure p S cts externlly from the high pressure side vi the pilot oil port on the pilot vlve which, on reching the set pressure, switches the low pressure side to give zero pressure circultion. he check vlve RV (not included within the scope of supply) prevents the high pressure system from flowing into the low pressure system which is now t zero pressure. Exmple 2: (circuit for the pressure dependent sequencing of 2nd system) With this circuit, oil is llowed to flow into system 2 when the pressure in system hs reched pre-set vlue. he pilot oil supply is internl from port of the min vlve. e.g. e.g. p S ype LF..DZ... ype LC..D2D... ype LF..DZ... ype LC..D2D... RV System 2 HD ND System

4 Instlltion cvity nd porting pttern to DIN ISO 7368 (Dimensions in mm) Z = = = 6 H (H*) H8 ØD3 (D3*) H9 3 2 R mx R mx 8 R Z NS 6 to 63 W Z Z ØD H7 ØD2 ØD H7 L L2±,2 Z 7 H7 H6 H H3±, 7, x D; H H2 +, NS ØD H ØD ØD (ØD3*) ØD H ØD M8 M2 M6 M2 M2 M3 M2 M3 ØD ØD7 H H (H*) H H ±,2 2 ±,2 H H H H H H L 6/ Ø2 Ø3 L Ø Ø2 L L L W mx. dim. L ØD7 H3 ; L±,2 L±,2 L3±,2 ØD6 mx. (,,,) L±,2 L3±,2 L±,2 L±,2 ØD6 mx. (,,,) L±,2 L2±,2 ØD7 H3 ; 8 Depth of fit 2 Reference dimension 3 For dimeters of port other thn ØD3 or (ØD3*), the distnce from the cover mounting surfce to the centre of this hole must be clculted. ort my be moved bout the centl xis of port. Cre must however be tken to ensure tht the fixing holes nd control holes re not dmged. Drilling for loction pin (cover loction pin fitted to DIN 2 32) 6 Note on NS 6 porting pttern: Length L (xis x y drilling) is 8 mm. 7 For Ø mm fit H8 is permitted! NS 8, 3 22, 8 Drilling for locting pin with functions s min pressure relief vlve (cover locting pin hs to be ppropritely relocted during ssembly) ØD7 H3 ; 8 x D; H ØD6 mx. (,,,) L2±,3 L

5 ressure relief function Ordering detils: pressure relief crtridge vlves (without control cover) LC D Nominl size 6 = 6 Nominl size 2 = 2 Nominl size 32 = 32 (Series 7) Nominl size = Nominl size = Nominl size 63 = 63 Nominl size 8 (Series 6) = 8 Nominl size = Crcking pressure pprox. br (without spring) = Crcking pressure pprox. 2 br = 2 Crcking pressure pprox. 3 br = 3 Crcking pressure pprox. br = Crcking pressure pprox. br = 2) Crcking pressure pprox. 8 br = 8 3) Crcking pressure 3. br only with NS6 for fitting pilot operted pressure relief vlve type DC. -/ SO87 (see ctlogue sheet RE 2 82) 2) Only with NS 6, 2 nd 32 3) Specil instlltion re required (see pge 2) E = D = = = No code = NR sels V = FKM sels (other sels on request) ttention! he comptibility of the sels nd pressure fluid hs to be tken into ccount! 7 = (NS 6 to 63) Series 7 to 79 (7 to 79: unchnged instlltion nd connection dimensions) 6 = (NS 8 nd ) Series 6 to 69 (6 to 69: unchnged instlltion nd connection dimensions) oppet vlve without orifice (stndrd) Spool poppet vlve without orifice (stndrd) oppet vlve with orifice Spool poppet vlve with orifice referred types nd stndrd components re highlighted in the RS (Rexroth rice list Stndrd). Symbols: crtridge vlves (for versions see ordering detils) oppet vlve without orifice Version E Spool poppet vlve with orifice Version Spool poppet vlve without orifice Version D Spool poppet vlve with orifice Version echnicl dt (for pplictions outside these prmeters, plese consult us!) ressure fluid minerl oil (HL, HL) to DIN 2 ; suitble for NR nd FKM sels 2) only suitble for FKM sels ressure fluid temperture rnge C 3 to + 8 for NR sels fst bio-degrdble pressure fluids to VDM 2 68 (lso see RE 9 22; HEG (rpe seed oil) ; HEG (polyglycole) 2) ; HEES (synthetic ester) 2) ; other pressure fluids on request 2 to + 8 for FKM sels Viscosity rnge mm 2 /s 2.8 to 38 Degree of contmintion Mximum permissible degree of contmintion of the pressure fluid is to NS 638 clss 9. We, therefore, recommend filter with minimum retention rte of ß 7. 2-wy crtridge vlve Mx. operting pressure orts nd br 2 Mx. flow (recommendtion) NS6 NS2 NS32 NS NS NS63 NS8 NS oppet vlve crtridge E nd L/min Spool vlve crtridge D nd L/min

6 Chrcteristic curves: nominl size 6 (mesured t ν = mm 2 /s nd ϑ = C) he chrcteristic curves were mesured with n externl pilot oil drin t zero pressure. With n internl pilot oil drin the inlet pressure is incresed to the pressure being pplied t port. Mnul pressure djustment, type LF 6 D nd type LF 6 DW ypss pressure in br Lowest settble pressure 2) in br ype LC 6 D.E (with poppet vlve) 2)..D....D2.. 2 Inlet pressure in br ypss pressure in br Lowest settble pressure 2) in br ype LC 6 D.D (with poppet spool vlve)..d.. 2)..D2.. 2 Inlet pressure in br Electricl proportionl pressure djustment, type LF 6 DE Lowest settble pressure in br ype LC 6 D.E (with poppet vlve)..d....d2.. Inlet pressure in br Lowest settble pressure in br 2 ype LC 6 D.D (with poppet spool vlve)..d....d2.. Inlet pressurein br

7 Chrcteristic curves: nominl size 2 (mesured t ν = mm 2 /s nd ϑ = C) he chrcterisitc curves were mesured with n externl pilot oil drin t zero pressure. With n internl pilot oil drin the inlet pressure is incresed to the pressure being pplied t port. Mnul pressure djustment, type LF 2 D nd type LF 2 DW ypss pressure in br Lowest settble pressure 2) in br ypss pressure in br Lowest settble pressure 2) in br ype LC 2 D.E (with poppet vlve) 2)..D....D ype LC 2 D.D (with poppet spool vlve)..d.. 2)..D Inlet pressure in br Inlet pressure in br Electricl proportionl pressure djustment, type LF 2 DE Lowest settble pressure in br ype LC 2 D.E (with poppet vlve)..d2....d.. Inlet pressure in br Lowest settble pressure in br ype LC 2 D.D (with poppet spool vlve)..d....d Inlet pressure in br 3 3 2

8 Chrcterisitic curves: nominl size 32 (mesured t ν = mm 2 /s nd ϑ = C) he chrcteristic curves were mesured with n externl pilot oil drin t zero pressure. With n internl pilot oil drin the inlet pressue is incresed to the pressure being pplied t port. Mnul pressure djustment, type LF 32 D nd type LF 32 DW ypss pressure in br Lowest settble pressure 2) in br yp LC 32 D.E (with poppet vlve) 2)..D....D Inlet pressure in br ypss pressure in br Lowest settble pressure 2) in br ype LC 32 D.D (with poppet spool vlve)..d.. 2)..D Inlet pressure in br Electricl proportionl pressure djustment, type LF 32 DE Lowest settble pressure in br ype LC 32 D.E (with poppet vlve)..d....d2.. Inlet pressure in br Lowest settble pressure in br ype LC 32 D.D (with poppet spool vlve) 3 2..D....D2.. Inlet pressure in br

9 Chrcteristic curves: nominl size (mesured t ν = mm 2 /s nd ϑ = C) he chrcteristic curves were mesured with n externl pilot oil drin t zero pressure. With n internl pilot oil drin the inlet pressure is incresed to the pressure being pplied t port. Mnul pressure djustment, type LF D nd type LF DW ypss pressure in br Lowest settble pressure 2) in br ype LC D.E (with poppet vlve) 2 2)..D....D Inlet pressure in br ypss pressure in br Lowest settble pressure 2) in br ype LC D.D (with poppet spool vlve) 2 2)..D....D Inlet pressure in br Electricl proportionl pressure djustment, type LF DE ype LC D.E (with poppet vlve) 2 3 Lowest settble pressure in br..d....d2.. Inlet pressure in br Lowest settble pressure in br ype LC D.D (with poppet spool vlve) 2..D....D2.. Inlet pressure in br

10 Chrcteristic curves: nominl size (mesured t ν = mm 2 /s nd ϑ = C) he chrcteristic curves were mesured with n externl pilot oil drin t zero pressure. With n internl pilot oil drin the inlet pressure is incresed to the pressure being pplied t port. Mnul pressure djustment, type LF D nd type LF DW ypss pressure in br Lowest settble pressure 2) in br ypss pressure in br Lowest settble pressure 2) in br ype LC D.E (with poppet vlve) D....D....D2.. ype LC D.D (with poppet spool vlve) 3 2..D2.. 2) 2) Inlet pressure in br Inlet pressure in br Electricl proportionl pressure djustment, type LF DE Lowest settble pressure in br Lowest settble pressure in br ype LC D.E (with poppet vlve) D....D2.. ype LC D.D (with poppet spool vlve) D....D2.. Inlet pressure in br Inlet pressure in br

11 Chrcteristic curves: nominl size 63 (mesured t ν = mm 2 /s nd ϑ = C) he chrcteristic curves were mesured with n externl pilot oil drin t zero pressure. With n internl pilot oil drin the inlet pressure is incresed to the pressure being pplied t port. Mnul pressure djustment, type LF 63 D nd type LF 63 DW ypss pressure in br Lowest settble pressure 2) in br ypss pressure in br Lowest settble pressure 2) in br ype LC 63 D.E (with poppet vlve) ) D....D2.. ype LC 63 D.D (with poppet spool vlve) ) 2 2..D....D2.. Inlet pressure in br Inlet pressure in br Electricl proportionl pressure djustment, type LF 63 DE Lowest settble pressure in br Lowest settble pressure in br ype LC 63 D.E (with poppet vlve) D....D2.. ype LC 63 D.D (with poppet spool vlve) 3 2..D....D2.. Inlet pressure in br Inlet pressure in br

12 Sel kits for crtridge vlves type LC... Nominl size Mteril no. NR sels FKM sels Nominl size Mteril no. NR sels FKM sels Compression springs for crtridge vlves type LC... NS Spring dimensions Crcking pressure Mteril in mm in br no..2/.3 x./ /.6 x 38.2/ /.7 x 38./ /.9 x 3.7/ /2. x 6./ /2.2 x./ /2.7 x 3./ /2.8 x 3./ /3. x 2./ /3. x 78./ /2.8 x 69./ /3.2 x 7./ /3. x 72./ /3. x 72.8/ /. x 9/ NS Spring dimensions Crcking pressure Mteril in mm in br no. 2.9/.2 x 63./ /. x 68./ /.3 x./ /. x 82./ /.3 x 92./ /6. x 37./ /6. x 8./ /6. x 27./ /8. x 83./ /8 x 38/ /8 x 2./ /9. x 76/ /9. x 9./ hese springs require n dditionl instlltion length. When using stndrd control covers n dditionl sndwich plte type LF..D22... must be used. Exception: Control cover type D cn be replced by type LF..D8-../F (no sndwich plte required).

13 Generl notes on the ordering detils for control covers LF D mx D D2 = vilble Nominl size ype Control Series ressure rting in br Sel ge type for nominl sizes mteril to 32 to D 8 to 2 DW to 2 2 2; ; DS ; ; 2 to 2 3; DWD 2 2 DU2 29 to 32 DU2 29 to DU3D 33 to 37 2 DE 38 2; ; 2; ; DEM ; ; ; ; 39 to 2 For functions, see selection tble on pge 3; 2 3; For ordering detils, see pges giving detils of the individul cover vritions 26 to 28 6 ypes of djuster for pressure relief vlves = Rotry knob 2 = Hexgon with protective cp 3 = Locble rotry knob with scle (H-lock to utomotive industry stndrds) = Rotry knob with scle, not lockble Series 7 = Series 7 to 79 nd 6 = Series 6 to 69 (unchnged instlltion nd connection dimensions) ressure rtings Dependent on size nd permissible working pressure of the pilot vlve. For further detils see ordering detils for the control cover referred types nd stndrd components re highlighted in the RS (Rexroth rice list Stndrd). ressure dt for D, only required for types DU2 nd DU3D ressure dt for D2, only required for types DU3D Ordering exmple for type DU3D /3* (D mx. /D/D2) *D mx. lwys first he control covers re lwys fitted with, optimised on our test rig, stndrd orifice. Orifice detils re therefore not required in the type code. Deviting operting conditions could mke it necessry to mtch the orifice size. he orifices re of the threded type. Orifice s shown within the min symbol

14 Generl notes on the ordering detils for control covers: pilot control vlve (mx. operting pressure) ilot control vlve Control cover Mx. operting pressure in br, ype Ctlogue NS ype For pressure sheet no. control Sttic DD. 2 K2/ on request 6 to 32 D, DW, DWD, 2 3 DD. 6 K/ 2) 2 2 to 63 DU2., DU3D, 3 DD. K/ 2) 2 2 8, DEM, DS 3.WE to 63 DW, DWD, 3 2 (=); 6 (~).WE , DU2., DU3D 3 2 (=); 6 (~) M-3SEW to 63 DW, DS 2 M-3SED to 63 DW, DS 3 - M-3SEW , DW, DS 2 M-3SED 22 8, DW, DS 3 - DE-/.G2-3) to 32 DE, DEM 3 DE-/.G DE, DEM 3 DE-/.G2-3) on request to DE, DEM 3 DER on request 6 to on request ossible pressure stges: 2,,,, 3, 2 2) ossible pressure stges: 2,,,, 3, 3) ossible pressure stges:,,, 3, 3 = G / threded connection ; specil poppet Fixing screws: S.H.C.S. to DIN ilot control vlve Dimensions ightening torque ype in Nm M-3SEW 6 M x 8.9 M-3SEW M6 x. M-3SED 6 M x 8.9 M-3SED M6 x. Zero pressure (up to 2 br) Included in type code Hs to be specilly ordered Note: y combining 2-wy crtridge vlve with pilot vlve, vrious vlve functions my be implemented. he following components my be considered with porting pttern form 6 (up to NS63) nd form (NS 8 to ) to DIN 2 3. Vlve fixing screws re included within the control cover scope of supply. ilot control vlve Dimensions ightening torque ype in Nm.WE 6 M x 8.9.WE M6 x. DE M x echnicl dt (for pplictions outside these prmeters, plese consult us!) ressure fluid minerl oil (HL, HL) to DIN 2 ; suitble for NR nd FKM sels 2) only suitble for FKM sels ressure fluid temperture rnge C 3 to + 8 for NR sels fst bio-degrdble pressure fluids to VDM 2 68 (lso see RE 9 22; HEG (rpe seed oil) ; HEG (polyglycole) 2) ; HEES (synthetic ester) 2) ; other pressure fluids on request 2 to + 8 tor FKM sels Viscosity rnge mm 2 /s 2.8 to 38 Degree of contmintion Mximum permissible degree of contmintion of the pressure fluid is to NS 638 clss 9. We, therefore recommend filter with minimum retention rte of ß 7. Mx. operting pressure br 2 ttention: p mx of the pilot control vlve is to be tken into ccount!

15 ilot control vlves (selection tble) Nom. size to 63 6 to 32 = vilble 8 nd ype ilot control vlve D b b b 3WE osition "" open Mnul pressure setting Without directionl vlve With directionl vlve osition "b" osition "" osition "" osition "b" D function Symbols (see pge 6) Directionl vlve unloding DW M-3SE.6C... WE6D... M-3SE.6U... 3WE9-... WED... M-3SE.6C... D function open D function open open D function open D function Isolting function 3 pressure stges 2 pressure stges DS DWD DU2 DU2 DU3D M-3SE.6U... M-3SE.C./... M-3SE.U./... 3WE WE WE6-... WE6M.. 3WE... WEM... WE6H... WEH... WE6D... WED... WE6D... WED... WE6H... WEH... WE6E... WEE... WE6D... WED... D function open D function D function closed D mx. function D function D2 function open D function open closed D function open D function D mx. function open D mx. function D function roportionl pressure setting version open open D function D function 6 7 roportionl vlves DE DEM DE-/... DE-/... without mx. pressure sfety limittion with mx. pressure sfety limittion 8 9 Open = bypss circuit Closed = crtridge vlve is hydruliclly blocked D function = pressure relief function

16 Symbol overview (bsic symbols), pressure relief function Vlid symboles re shown in the following type descriptions! 2 3 LF..D.-../..NS6 to LF..DW.-../..NS6 to 32 LF..DW.-../..NS to ** ** ** ** see pges 8 to 2 see pges 2, 22 see pges 2 to 2 6 LF..DS.-../..NS to LF..DWD.-../..NS6 to LF..DU2.-../..NS6 to ** ** ** ** D ** D mx see pges 2 to 2 see pges 26 to 28 see pges 29 to LF..DU3D.-../..NS6 to LF..DE-../..NS6 to 63 LF..DEM-../..NS6 to D ** ** D mx D 2 ** ** ** ** see pges 33 to 37 see pge 38 see pges 39 to 2

17 R-rings dimensions for ports, (included within the scope of supply) NS Dimensions Mteril no. mm NR FKM 6 8. x. x x. x x.6 x , 3. x 2.3 x x 2.62 x x 3.3 x x 3.3 x Sel kits for control cover type LF.. Sel kit for LF... Mteril no. NS 6 NS 2 NS 32 NS NR FKM NR FKM NR FKM NR FKM..D..; DW..;..DS....DWD..;..DEM DU2..;..DU DE Sel kit for LF... Mteril no. NS NS 63 NS 8 NS NR FKM NR FKM NR FKM NR FKM..D..; DW..;..DS....DWD..; DU2..;..DU DE DEM Fixing screws (included within the scope of supply) S.H.C.S. to DIN NS Qty. Dimensions ightening torque in Nm 6 M 8 x 32 2 M 2 x 32 M 6 x 6 27 M 2 x 7 2 M 2 x M 3 x M 2 x M 3 x 2 8 Orifice thred size D-orifices for type..de.. NS 2 to 63 Orifices for NS 8, Other built-in orifices M8 x tpered M8 x tpered (**, **, **, ) or G / (**, ) M6 tpered

18 Control cover with mnul pressure djustment NS 6 to LF D No code = NR sels V = FKM sels Nominl size 6 = 6 (other sels on request) Nominl size 2 = 2 Nominl size 32 = 32 ttention! Series 7 Nominl size = he comptibility of the sels nd pressure Nominl size = fluid hs to be tken into ccount! Nominl size 63 = 63 ressure rtings Nominl size 8 = 8 NS 6, 2,32 NS,, 63, 8, Series 6 Nominl size = 2 = 2 br 2 = 2 br djuster type = br = br = br = br Rotry knob = = br = br Hexgon with protective cp = 2 3 = 3 br 3 = 3 br 2 = 2 br = br Lockble rotry knob with scle = 3 (H-lock to utomotive industry stndrds) 6 = Series 6 (NS 8 nd ) Rotry knob with scle not lockble = 7 = Series 7 (NS 6 to 63) with NS 32 NS 6, 2,32 ** LF..D.-7/.. NS 6, 2, 32 Dimensions in mm with NS 6, 2 H3 H L 2 H2 G / /2 only with version LF 32 D. D F 2 2 mx 3 9 L2 DD.2K. /F SW 22 SW /F 8 mx Ø3 H Ø NS ** H H2 H3 H L L2 L3 L Ø ; 7 L3 L ** Orifice - Ø Orifice M6 tpered ort optionlly s threded port 3 Locting pin djuster type "2" djuster type "" 6 djuster type "3" 7 djuster type "" 8 Spce require to remove the key 9 Nme plte Lock nut

19 Control cover with mnul pressure djustment LF..D.-7/.. NS,, 63 NS, 9 mx Dimensions in mm D/ ; 7 H H2 D/ D F Ø 3 H Ø 6 Ø 6 H3 9 mx L3 /F SW32 /F SW3 SW9 /F 9 SW6 /F 6 DD.6K.. 8 NS 63 L L2 H H2 G/2; /F SW9 /F SW32 D Ø 3 F DD.6K.. 9 L L 8 SW6 /F 6 Ø 6 /F SW3 72 G/2; H 9 mx mx 6; 7 Ø 6 NS D H H2 H3 H L L2 L3 L L.2. G/ H3. 2. G/2 68 9, ** Orifice - Ø Orifice M6 tpered ort optionlly s threded port 2 ort optionlly s threded port 3 Locting pin djuster type "2" L djuster type "" 6 djuster type "3" 7 djuster type "" 9 8 Spce required to remove key 9 Nme plte 9 9 Lock nut

20 Control cover with mnul pressure djustment ** LF...D.-6/... NS 8, NS 8, Dimensions in mm DD.K.. /F SW9 SW3 /F Ø 38 /F SW36 /F SW66 G/2; 68 Ø mx mx Ø 6 H H2 F H3 H 6; 7 G/2; 2, 3 F L8 D2 2, G/2; 2 NS ** D2 H H2 H3 H L ** Orifice - Ø Orifice G / tpered ort optionlly s threded port 2 ort optionlly s threded port 3 Locting pin djuster type "2" djuster type "" 6 djuster type "3" 7 djuster type "" 8 Spce required to remove key 9 Nme plte Lock nut

21 Control cover with mnul pressure djustment, with electricl unloding NS 6 to NS 6 NS 2 NS 32 NS NS NS 63 Series 7 = 6 = 2 = 32 = = = 63 NS 8 NS Series LF = 8 = Control cover type For mounting = DW directionl spool (NS 6 to ) or directionl poppet vlve (for NS 6, 2, 32) For mounting directionl poppet vlve = DS (for NS,, 63, 8, ) djuster type Rotry = Hexgon with protective cp = 2 Lockble rotry knob with scle = 3 (H-lock to utomotive industry stndrds) Rotry knot with scle not lockble = No code = V = NR sels FKM sels (other sels on request) ttention! he comptibility of the sels nd pressure fluid hs to be tken into ccount! ressure rtings (tke mx. perm. pressure of pilot vlve into ccount) NS 6, 2, 32 2 = 2 br = br = br = br 3 = 3 br 2 = 2 br NS,, 63, 8, 2 = 2 br = br = br = br 3 = 3 br = br 6 = Series 6 (NS 8 nd ) 7 = Series 7 (NS 6 to 63) NS 6 to 63 WE 6 D../.. 3WE /.. M-3SED 6 C../3 ** ** M-3SED 6 U../3 M-3SEW 6 U../2 M-3SEW 6 C../2 LF..DW.-7/... NS 6, 2, 32 WE 6 D../.. 3WE /.. M-3SED 6 U../3 M-3SEW 6 U../2 M-3SED 6 C../3 ** ** M-3SEW 6 C../2 LF..DW.-7/... NS,, 63 LF..DS.-7/... NS,, 63

22 Control cover with mnul pressure djustment, for electricl unloding NS 6, 2, 32 Dimensions in mm Directionl spool vlve. WE 6... Directionl poppet vlve U M-3SEW 6../ C Directionl poppet vlve M-3SED 6 U G / /2 H3 H H2 D F H DD.2K L 2 L3 32, 3 9 L6 L L2, /F SW 22 /F SW 2 Ø 3 L 2 mx 8 mx Ø Ø 32 2 G / /2 6;7 8 NS ** ** H H2 H3 H H L L2 L3 L L L6 L ** Orifice - Ø Orifice M6 tpered ort optionlly s threded port 2 ort optionlly s threded port 3 Locting pin djuster type "2" djuster type "" 6 djuster type "3" 7 djuster type "" 8 Spce required to remove key 9 Nme plte Lock nut Vlve fixing screws re included within the control cover scope of supply

23 Control cover with mnul pressure djustment, for electricl unloding NS, Dimensions in mm LF..DW.-7/... LF..DS.-../... Directionl spool vlve. WE 6... Directionl poppet vlve M-3SEW 6 U../ C Dirrectionl poppet vlve M-3SED 6 U D/ D L H3 H H2 32, 3 F H 3 /F SW3 SW32 /F Ø 3 H H2* /F SW9 /F SW66 9 mx DD.6K.. D F D/ mx Ø 6 Ø 6 L3 L3* L7 L L6, 9 L D/ 2 6; 7 8 NS ** ** D H H2 H2* H3 H H L L3 L3* L L L6 L G/ G/ * Dimensions for control cover LF..DS.. ** Orifice - Ø Orifice M6 tpered ort optionlly s threded port 2 ort optionlly s threded port 3 Locting pin djuster type "2" djuster type "" 6 djuster type "3" 7 djuster type "" 8 Spce required to remove key 9 Nme plte Lock nut Vlve fixing screws re included within the control cover scope of supply

24 Control cover with mnul pressure djustment, for electricl unloding NS 63 Dimensions in mm LF..DW.-7/ G/2; /F SW66 /F SW9 DD.6K.. Directionl spool vlve WE 6... Ø 3 D F G/2; /F SW3 /F SW32 Ø 6 9 mx mx 6; 7 Ø , 7, 9 LF..DS.-.../ Directionl poppet vlve M-3SED 6 U ort optionlly s threded port 2 ort optionlly s threded port 3 Locting pin djuster type "2" djuster type "" 6 djuster type "3" 7 djuster type "" 8 Spce required to remove key 9 Nme plte Lock nut Vlve fixing screws re included within the control cover scope of supply Directionl poppet vlve U M-3SEW 6../ C D ** ** DW DS ** Orifice - Ø Orifice M6 tpered F

25 Control cover with mnul pressure djustment, for electricl unloding NS 8, WE D... 3WE 9... M-3SED U../3 M-3SEW U../2 M-3SED C../3 ** ** ** ** M-3SEW C../2 LF..DW.-6/... NS 8, LF..DS.-6/... NS 8, Directionl poppet vlve U M-3SEW../ C Directionl poppet vlve M-3SED U Dimensions in mm H3 H H2 G/2; DD.K.. /F SW66 /F SW9 /F SW3 /F SW36 Wege-Schieberventil WE... Ø 38 F 68 G/2; 2, 2, 3 9 H 2 Ø mx mx 6; 7 Ø 6 NS ** ** ** ** 2) 2) D2 H H2 H3 H L ** Orifice - Ø Orifice M8 x tpered 2) Orifice G / tpered L8 D2 F 3 ort optionlly s threded port 2 ort optionlly s threded port 3 Locting pin djuster type "2" djuster type "" 6 djuster type "3" 7 djsuter type "" 8 Spce required to remove key 9 Nme plte Lock nut Vlve fixing screws re included within the control cover scope of supply

26 Control cover with mnul pressure djustment, for isoltion functions NS 6 to NS 6 NS 2 NS 32 NS NS NS 63 Series 7 = 6 = 2 = 32 = = = 63 NS 8 NS Series LF = 8 = DWD djuster type Rotry knob = Hexgon with protective cp = 2 Lockble rotry knob with scle = 3 (H-lock to utomotive industry stndrds) Rotry knob with scle not lockble = Series 6 (NS 8 nd ) Series 7 (NS 6 to 63) = 6 = 7 No code = V = NR sels FKM sels (other sels on request) ttention! he comptibility of the sels nd pressure fluid hs to be tken into ccount! ressure rtings (tke mx. perm. pressure of pilot vlve into ccount) NS 6, 2,32 2 = 2 br = br = br = br 3 = 3 br 2 = 2 br NS,, 63, 8, 2 = 2 br = br = br = br 3 = 3 br = br 3 WE 6../... 3 WE /... 3 WE /... ** ** WE 6 M../... b ** LF..DWD.-7/... NS 6 ** LF..DWD.-7/... NS 2, 32 3 WE /... 3 WE... 3 WE 9... ** WE M... b ** ** LF..DWD.-7/... NS,, 63 LF..DWD.-6/... NS 8,

27 Control cover with mnul pressure djustment, for isoltion functions NS 6, 2, 32 Dimensions in mm Directionl spool vlve. WE H H2 G /; 2 H F /F SW22 /F SW Ø3 H 8 mx Ø Ø 32 H3 2 2 mx 2 3 L2 DD.2K. 9 6; 7 8 NS, L L3 32, G /; 2 L6 L, 3 L7 L H H2 D/ Directionl spool vlve. WE 6... D H F 72 H3 Ø 3 H ort optionlly s threded port 2 ort optionlly s threded port 3 Locting pin djuster type "2" djuster type "" 6 djuster type "3" 7 djuster type "" 8 Spce required to remove key 9 Nme plte Lock nut Vlve fixing screws re included within the control cover scope of supply L L3 32, 9 3 L6, L 2 6; 7 3 D/ DD.6K.. /F SW32 /F SW3 /F SW9 /F SW66 L7 L Ø mx mx For dimension tble see pge 28 Ø 6

28 Control cover with mnul pressure djustment, for isoltion functions NS ** ** 2) ) D G / G /2 D2 2 3 H H H H H L 6 8 L 2 8 L2 8 8 L L L L L L ** Orifice - Ø Orifice M6 tpered (NS ) or M8 x tpered (NS 8 nd ) 2) Orifice M6 tpered (NS ) or G / tpered (NS 8 nd ) NS 63 ; 7 72 H H3 L H2 3 G/2; 32, DD.6K.. 3 D Dimensions in mm Directionl spool vlve.we 6... Ø 3 F G/2; H NS 8, 7 9, H3 H L8 H2 DD.K.. Directionl spool vlve.we... /F SW66 /F SW9 /F SW3 /F SW36 G/2; Ø 38 F 2, 2, D mx H 8 Ø 6 G/2; mx 6; 7 Ø 6 ort optionlly s threded port 2 ort optionlly s threded port 3 Locting pin djuster type "2" djuster type "" 6 djuster type "3" 7 djuster type "" 8 Spce required to remove key 9 Nme plte Lock nut Vlve fixing screws re included within the control cover scope of supply

29 Control cover with 2 mnul pressure djustments, electriclly selectble NS 6 to NS 6 NS 2 NS 32 NS NS NS 63 Series 7 = 6 = 2 = 32 = = = 63 NS 8 NS Control cover type De-energised - D ( WE.. D) De-energised - open ( WE.. H) De-energised - D mx. ( WE.. D) (see symbols) b Series LF = 8 = djuster type (detils only required for D Rotry knob = Hexgon with protective cp = 2 Lockble rotry knob with scle = 3 (H-lock to utomotive industry stndrds) Rotry knob with scle not lockble = WE 6 H../... = DU2 = DU2 D mx.... D b No code = V = NR sels FKM sels (other sels on request) ttention! he comptibility of the sels nd pressure fluid hs to be tken into ccount! ressure rtings (tke mx. perm. pressure of pilot vlve into ccount) NS 6, 2,32 2 = 2 br = br = br = br 3 = 3 br 2 = 2 br NS,, 63, 8, 2 = 2 br = br = br = br 3 = 3 br = br 6 = Series 6 (NS 8 nd ) 7 = Series 7 (NS 6 to 63) WE 6 H../... WE 6 D../... D WE 6 D../... WE 6 D../... WE 6 D../... D D D ** ** D mx ** ** D mx ** D mx ** D mx LF..DU NS 6, 2, 32 LF..DU2.-7/... NS 6, 2, 32 LF..DU2.-7/... NS,, 63 LF..DU2.-7/... NS,, 63 WE H../... WE D../... WE D../... b D D ** ** D mx D mx LF...DU2.-6/... NS 8, LF...DU2.-6/... NS 8,

30 Control cover with 2 mnul pressure djustments, electriclly selectble NS 6, 2, 32 Dimensions in mm Directionl spool vlve WE H H2 G / /2 D F D D mx *) H 2 H DD.2K. DDS2K. 3, 7 H3 2 3 L2 9 /F SW 22 /F SW 6; mx 8 L 32, Ø 32 L3 Ø L 3 Ø3 L7 L6 L, 2 mx 2 G / /2 NS ** ** H H2 H3 H H L L2 L3 L L L6 L ** Orifice - Ø Orifice M6 tpered ort optionlly s threded port 2 ort optionlly s threded port 3 Locting pin djuster type "2" djuster type "" 6 djuster type "3" 7 djuster type "" 8 Spce required to remove key 9 Nme plte Lock nut Vlve fixing screws M x 9 re included within the scope of the control cover supply 2 lug M6 tpered for..du lug M6 tpered for..du 2.. *) For D mx. only djuster type "2" is possible

31 Control cover with 2 mnul pressure djustments, electriclly selectble NS, NS 63 Dimensions in mm H 2 H2 D/ Directionl spool vlve WE 6... Directionl spool vlve WE 6... DD.6K.., 7 D Dmx*) F H D 2 Ø 3 H 3 2 H H2 D Ø 3 Dmx*) D F H 2 3 DD.6K.., 7 H3 72 H3 G/2; 2 L L3 32, 3 3 DDS6K.. /F SW32 /F SW3 /F SW9 SW6 /F 6 L L 3 32, G/2; /F SW32 /F SW3 /F SW9 /F SW6 6 9 L L6, L ort optionlly s threded port 2 ort optionlly s threded port 3 Locting pin djuster type "2" djuster type "" 6 djuster type "3" 7 djuster type "" D/ 2 7, 9 DDS6K.. 8 Spce required to remove key 9 Nme plte Lock nut Vlve fixing screws M x 9 re included within the control cover scope of supply 2 lug M6 tpered for..du lug M6 tpered for..du 2.. *) For D mx. only djuster type "2" is possible 6; 7 9 mx Ø mx Ø 6 NS ** D H H2 H3 H H L L3 L L L6 L G/ G/ ** Orifice - Ø Orifice M6 tpered

32 Control cover with 2 mnul pressure djustments, electriclly selectble NS 8, Dimensions in mm Directionl spool vlve WE mx mx 7 D Ø 38 3 Ø 6 Ø 6 H H2 F H H3 2, 2, G/2; 2 6; 7 8 G/2; 3 DD.K.., 7 DDSK ** Orifice - Ø Orifice M8 x tpered 2) Orifice G / tpered *) Dmx F 3 D2 L8 /F SW36 /F SW66 /F SW9 /F SW3 NS ** ** 2) 2) D2 H H2 H3 H L ort optionlly s threded port 2 ort optionlly s threded port 3 Locting pin djuster type "2" djuster type "" 6 djuster type "3" 7 djuster type "" 8 Spce required to remove key 9 Nme plte Lock nut Vlve fixing screws re included within the control cover scope of supply 2 lug M8 x tpered for...du lug M8 x tpered for...du2... *) For D mx. only djuster type "2" is possible

33 Control cover with 3 mnul pressure djustments, electriclly selectble NS 6 to Nom. size 6 = 6 Nom. size 2 = 2 Nom. size 32 = 32 Series 7 Nom. size = Nom. size = Nom. size 63 = 63 Nom. size 8 Series 6 = 8 Nom. size = djuster type (detils only for D or D2)*) Rotry knob = Hexgon with protective cp = 2 Lockble rotry knob with scle = 3 (H-lock to utomotive industry stndrds) Rotry knob with scle not lockble = Series 6 (NS 8 nd ) Series 7 (NS 6 to 63) *) For D nd D2 select the sme djuster type LF DU3D = 6 = 7 D mx D D2 No code = V = NR sels FKM sels (other sels on request) ttention! he comptibility of the sels nd pressure fluid hs to be tken into ccount! ressure rtings (tke mx. perm. pressure of pilot vlve into ccount) NS 6, 2, 32 NS,, 63, 8, 2 = 2 br 2 = 2 br = br = br = br = br = br = br 3 = 3 br 3 = 3 br 2 = 2 br = br WE 6 H.. /... WE 6 H.. /... WE H.. /... b b b WE 6 E.. /... WE 6 E.. /... WE E.. /... b b b WE 6 D.. /... WE 6 D.. /... WE D.. /... D D 2 D D 2 D D 2 ** ** D mx ** D mx ** D mx LF..DU3D.-7/... NS 6, 2, 32 LF..DU3D.-7/... NS,, 63 LF...DU3D.-6/... NS 8,

34 Control cover with 3 mnul pressure djustments, electriclly selectble NS 6, 2, 32 Dimensions in mm Directionl spool vlve WE 6... ort optionlly s threded port 2 ort optionlly s threded port 3 Locting pin H H2 79 G / /2 2 D D *) D2 *) H F D mx **) H DD.2K. DD.2K. DDS2K..., 7, 7 djuster type "2" djuster type "" 6 djuster type "3" 7 djuster type "" 8 Spce required to remove key 9 Nme plte Lock nut Vlve fixing screws re included within the control cover scope of supply *) for D nd D2 select the sme djuster type H3 2 **) For D mx. only djuster type "2" is possible 3 L2 9 /F SW 22 /F SW 6; mx 8 L L3 Ø 32 L Ø 32, 3 Ø3 L7 L6 L, 2 mx 2 G / /2 NS ** ** H H2 H3 H H L L2 L3 L L L6 L ** Orifice - Ø Orifice M6 tpered

35 Control cover with 3 mnul pressure djustments, electriclly selectble NS, Dimensions in mm Directionl spool vlve WE H3 H H2 D/ 2 D F 72 3 D *) D2 *) H Dmx**) DD.6K.. Ø 3 H DDS6K.. ; 7 ort optionlly s threded port 2 ort optionlly s threded port 3 Locting pin djuster type "2" djuster type "" 6 djuster type "3" 7 djuster type "" 8 Spce required to remove key 9 Nme plte Lock nut Vlve fixing screws re included within the control cover scope supply *) For D nd D2 select the sme djuster type **) For D mx. only djuster type "2" is possible 9 mx mx /F SW32 /F SW3 L L3 32, 3 /F SW9 /F SW66 L Ø 6 L7 Ø 6 9 L6, L D/ 2 6; 7 8 NS ** D H H2 H3 H H L L3 L L L6 L G/ G/ ** Orifice - Ø Orifice M6 tpered

36 Control cover with 3 mnul pressure djustments, electriclly selectble NS 63 Dimensions in mm Directionl spool vlve WE 6... D *) DD.6K.. ; G /2; Dmx**) D F 72 G/2;, Ø 3 DD.6K.. ; 7 3 /F SW32 /F SW , 9 87 D2 *) DDS6K.. NS 63 ** ** Orifice - Ø Orifice M6 tpered mx 9 mx 3 SW9 /F SW6 /F 6 3 Ø 6 Ø 6 7, 9 6; 7 8 ort optionlly s threded port 2 ort optionlly s threded port 3 Locting pin djuster type "2" djuster type "" 6 djuster type "3" 7 djuster type "" 8 Spce required to remove key 9 Nme plte Lock nut Vlve fixing screws re included within the control cover scope of supply *) For D nd D2 select the sme djuster type **) For D mx. only djuster type "2" is possible

37 Control cover with 3 mnul pressure djustments, electriclly selectble NS 8, Dimensions in mm Directionl spool vlve WE mx 9 mx 2 2 D *) 3 Ø 38 Ø 6 Ø 6 D2 *) DD.K.., 7 6; 7 8 H3 H H2 G/2; 7 6 F 2, 2, D2 H L8 G/2; DDSK.. Dmx **) F /F SW6 6 /F SW9 /F SW3 3 /F SW36 ort optionlly s threded port 2 ort optionlly s threded port 3 Locting pin djuster type "2" djuster type "" 6 djuster type "3" 7 djuster type "" 8 Spce required to remove key 9 Nme plte Lock nut Vlve fixing screws re included within the control cover scope of supply *) For D nd D2 select the sme djuster type **) For D mx. only djuster type "2" is possible NS ** ** 2) 2) D2 H H2 H3 H L ** Orifice - Ø Orifice M8 x tpered 2) Orifice G / tpered

38 Control cover for electricl-proportionl pressure djustment, without mximum pressure limittion NS 6 to 63 NS 6 NS 2 NS 32 = 6 = 2 = 32 NS NS NS 63 = = = 63 For mounting proportionl pressure relief vlve without electricl feedbck Series 7 (NS 6 to 63) LF DE 7 = DE = 7 Dimensions in mm No code = NR sels V = FKM sels (other sels on request) ttention! he comptibility of the sels nd pressure fluid hs to be tken into ccount! ** ** ** ** ** ** zero pressure LF...DE-7/ NG 6 LF...DE-7/ NG 2, 32, LF...DE-7/ NG, 63 NS 6 to NS, 63 L 39, 6 H H3 2 L H2 L3 D/ 32, only NS 6 D 3 L2 F not NS 6 D/ 3 L6 H L L, NG NS,, 63 NS NG 6, 2, 32 ** Orifice - Ø Orifice M6 tpered 2) Orifice M6 tpered (NS6), M8 x tpered (NS ) H H3 H2 D/ NS **.8.8 ** ** ) D G/ G/ G/ G/2 G/2 G/2 H H H H L L L , 72 8 L L L D F D/ H ort optionlly s threded port 2 ort optionlly s threded port 3 Locting pin 9 Nme plte Vlve fixing screws re included within the control cover scope of supply rop. pressure relief vlve type DE-/... (see summry on pge, nd ctlogue sheet RE 29 6) ressure relief vlve NS 6 (is included within the scope of supply)

39 Control cover for electricl-proportionl pressure djustment, with mximum pressure limittion NS 6 to Nom. size 6 Nom. size 2 Nom. size 32 Nom. size Nom. size Nom. size 63 Nom. size 8 Nom. size Series 7 Series LF = 6 = 2 = 32 = = = 63 = 8 = For mounting proportionl pressure relief vlve Without electricl feedbck nd With mximum pressure sfety = DEM Series 6 (NS 8 to ) Series 7 (NS 6 to 63) DEM = 6 = 7 No code = V = NR sels FKM sels (other sels on request) ttention! he comptibility of the sels nd pressure fluid hs to be tken into ccount! ressure rtings (tke mx. perm. pressure of pilot vlve into ccount) NS 6, 2, 32 2 = 2 br = br = br = br 3 = 3 br 2 = 2 br NS,, 63, 8, 2 = 2 br = br = br = br 3 = 3 br = br ** ** ** LF..DEM-7/... NS 6, 2, 32 LF..DEM-7/... NS ** ** zero pressure zero pressure ** ** ** LF..DEM-7/... NS, 63 LF..DEM-6/... NS 8, For item nos. see pge

40 Control cover for electricl-proportionl pressure djustment, with mximum pressure limittion NS 6, 2, 32 Dimensions in mm SW22 /F SW /F H H2 G/; 2 D F H Ø 3 H H DDS2K.. 2 L2 orts nd - zero pressure ort optionlly s threded port L L3 32, 3 L 2 ort optionlly s threded port 3 Locting pin djuster type "2" 9 Nme plte L6 Lock nut L, L7 G/; 2 2 Vlve fixing screws re included within the control cover scope of supply roportionl pressure relief vlve type DE-/ 3) (see summry on pge, lso ctlogue sheet RE 29 6) 3) = G / threded port, specil poppet NS ** ** H H2 H3 H H L L2 L3 L L L6 L ** Orifice - Ø Orifice M6 typered

41 Control cover for electricl-proportionl pressure djustment, with mximum pressure limition NS NS Dimensions in mm 6 G/; 2 G/; , H H2 D F H H G/2; G/2; 2 H3 3 SW3 /F 3 SW6 /F 6 SW32 /F 32 SW9 /F 9 H3 H H2 D F H 72 H 3 DDS6K.. 72 L L3 32, L, L7 3 9 L6 L Ø 3 DDS6K.. ort optionlly s threded port 2 ort optionlly s threded port 3 Locting pin djustment type "2" 9 Nme plte Lock nut Vlve fixing screws re included within the control cover scope of supply roportionl pressure relief vlve type DE-/ G2 (NS ) type DE-/ G2-3) (NS ) (see summry on pge, nd ctlogue sheet RE 29 6) ressure relief vlve NS 6 (is included within the scope of supply) 3) = G / threded port, specil poppet NS ** ** H H2 H3 H H L L3 L L L6 L ** Orifice - Ø Orifice M6 tpered

42 Control cover for electricl-proportionl pressure djustment, with mximum pressure limittion NS 63 NS 8, Dimensions in mm H3 H H2 DDS6K , Ø 3 /F SW66 G /2; D F 3 9 H 72 SW9 /F 9 SW3 /F 3 /F SW32 H3 H 8 6 H2 3 9,, D F 2, 2, DDSK.. H 3 6, G/2; G/2; G/2; 2 L 3 32, D2 L8 7, ort optionlly s threded port 2 ort optionlly s threded port 3 Locting pin djuster type "2" 9 Nme plte Lock nut Vlve fixing screws re included within the control cover scope of supply roportionl pressure relief vlve type DE-/ G2-3) (see summry on pge, nd ctlogue sheet RE 29 6) ressure relief vlve NS 6 (is included within the scope of supply) 3) = G / threded port, specil poppet NS ** ** ** 2) 2) H H2 H3 H D2 L L ** Orifice - Ø Orifice M6 tpered (NS63) orifice M8 x tpered (NS8, ) 2) Orifice M6 tpered (NS63) orifice G / tpered (NS8, )

43 ressure reducing function Ordering detils: pressure reducing crtridge vlve (without ssocited control cover LF..D..) Nominl size 6 = 6 Nominl size 2 = 2 Nominl size 32 = 32 Nominl size = Nominl size = Nominl size 63 = 63 Closing pressure pprox. br (without spring) = Closing pressure pprox. 2 br = 2 Closing pressure pprox. 3 br = 3 Closing pressure pprox. br (stndrd spring) = Closing pressure pprox. br = 2) Closing pressure pprox. 8 br = 8 3) referred types nd stndrd components re highlighted in the RS (Rexroth rice list Stndrd). LC DR E 7 E = No code = NR sels V = FM sels (other sels on request) ttention! he comptibility of the sels nd pressure fluid hs to be tken into ccount! 7 = (NS 6 to 63) Series 7 to 79 (7 to 79: unchnged instlltion nd connection dimensions) Spool without fine control grooves Closing pressure 3. br only for NS6 for mounting pilot operted pressure relief vlve type DC. -/ SO87 (see ctlogue sheet RE 2 82) 2) Only for NS 6, 2 nd 32 3) Specil instlltion room required (see pge 7) Symbol: crtridge vlves ype LC..DR.. echnicl dt (for pplictions outside these prmeters, plese consult us!) ressure fluid minerl oil (HL, HL) to DIN 2 ; suitble for NR nd FKM sels 2) only suitble FKM sels ressure fluid temperture rnge C 3 to + 8 for NR sels fst bio-degrdble pressure fluids to VDM 2 68 (see lso RE 9 22; HEG (rpe seed oil) ; HEG (polyglycole) 2) ; HEES (synthetic ester) 2) ; other pressure fluids on request 2 bis + 8 for FKM sels Viscosity rnge mm 2 /s 2.8 to 38 Degree of contmintion mximum permissible degree of contmintion of the pressure fluid is to NS 638 clss 9. We, therefore recommend filter with minimum retention rte of ß 7. Mx. operting pressure orts nd br 3 Mx. flow (recommeded) NS 6 NS 2 NS 32 NS NS NS 63 LC..DR2.../.. L/min LC..DR.../.. L/min 3 3 referbly use nd 8 br springs for flow control. he usble p is vilble on request. ttention! 2-wy crtridge vlves LC..DR... re combined with control covers type LF..D... (for ordering detils see pge 3). ** ressure reducing function Normlly open e.g. ype LF...D... ype LC..DR...

44 Chrcteristic curves (mesured t ν = mm 2 /s nd ϑ = C) LC 6 DR... Outlet pressure in br ressure differentil in br Lowest settble pressure in br 2 br br 8 br Outlet pressure in br 3 2 ilot oil flow in L/min,2,,7,,2 2 br br 8 br 2 3 Inlet pressure in br Mesured t: p = br LC 2 DR... Outlet pressure in br 3 2 ressure differentil in br Lowest settble pressure in br br 2 br 8 br 3 3 Outlet pressure in br 3 2 ilot oil flow in L/min,6,,2,,8,6,,2 2 br br 8 br 2 3 Inlet pressure in br 3 Mesured t: p = br

45 Chrcteristic curves (mesured t ν = mm 2 /s nd ϑ = C) LC 32 DR... Outlet pressure in br ressure differentil in br Lowest settble pressure in br 8 br br 2 br 3 6 Outlet pressure in br 3 2 ilot oil flow in L/min,6,,2,,8,6,,2 2 br 8 br br 2 3 Inlet pressure in br 3 6 Mesured t: p = br LC DR... Outlet pressure in br 3 2 Version 2 ressure differentil in br Lowest settble pressure in br br 2 br 8 br ,2 Outlet pressure in br 2 ilot oil flow in L/min,,8,6,,2 2 br 8 br br 2 3 Inlet pressure in br 6 8 Mesured t: p = br

46 Chrcteristic curves (mesured t ν = mm 2 /s nd ϑ = C) LC DR... Outlet pressure in br 3 2 Version 2 Version ressure differentil in br Lowest settble pressure in br br br 2 br Outlet pressure in br 2 ilot oil flow in L/min br 8 br br 2 3 Inlet pressure in br LC 63 DR Mesured t: p = br p e = br p e = 3 br Outlet pressure in br 3 2 Version 2 ressure differentil in br Lowest settble pressure in br br 2 br 8 br Outlet pressure in br 2 ilot oil flow in L/min br br 8 br 2 3 Inlet pressure in br 8 6 Mesured t: p = br p e = br p e = 3 br

47 Sel kits for crtridge vlves type LC... Nominl size Mteril no. NR sels FKM sels Nominl size Mteril no. NR sels FKM sels Compression springs type LC... NS Spring dimensions Opening pressure Mteril in mm in br no..2/.3 x./ /.6 x 38.2/ /.7 x 38./ /.9 x 3.7/ /2. x 6./ /2.2 x./ /2.7 x 3./ /2.8 x 3./ /3. x 2./ /3. x 78./ /2.8 x 69./ /3.2 x 7./ /3. x 72./ /3. x 72.8/ /. x 9/ NS Spring dimensions Crcking pressure Mteril in mm in br no. 2.9/.2 x 63/ /. x 68./ /.3 x / / x 82/ /.3 x 92/ /6. x 37/ /6. x 8/ /6. x 27./ /8. x 83./ hese springs require n dditionl instlltion length. When using stndrd control covers n dditionl sndwich plte type LF. D22 must be used. Exception: Control cover type "D" cn be replced by type LF. D8-../F (no sndwich plte required).

48 Control cover for pressure reducing function Min spool normlly closed - LC..D D.. seprte order Generl notes LF 7 = vilble Nominl size ype djuster Series ressure rtings in br Sel ge type for nominl size mteril DR.....DRW...DRE.. DR 2 3, For ordering detils see pges for the individul control cover vrints DRW 7, 6 DREV 6 7, 8 DREZ 2 7, 8 DREWV 3 6 9, 6 DREWZ 3 9, 6 referred types nd stndrd components re highlighted in the RS (Rexroth rice list Stndrd). djustment elements for pressure reducing vlves = Rotry knob 2 = Hexgon with protective cp 3 = Lockble rotry knob with scle (H-lock to utomotive industry stndrds) = Rotry knob with scle Series 7 = Series 7 to 79 (unchnged instlltion nd connection dimensions) ttention! Control covers type LF..DR... re combined with 2-wy crtridge vlves type LC..D D... (for ordering detils see pge ) M ressure reducing function Normlly closed ** e.g. ype LF...DR... ype LC..D D..

49 Control cover for pressure reducing function Min spool normlly closed - LC..D D.. seprte order echnicl dt (for pplictions outside these prmeters, plese consult us!) ressure fluid minerl oil (HL, HL) to DIN 2 ; fst bio-degrdble pressure fluids to suitble for NR nd FKM sels VDM 2 68 (lso see RE 9 22; HEG (rpe seed oil) ; 2) not suitble for FKM sels HEG (polyglycole) 2) ; HEES (synthetic ester) 2) ; other pressure fluids on request ressure fluid temperture rnge C 3 to + 8 for NR sels Control cover 2 to + 8 for FKM sels Viscosity rnge mm 2 /s 2.8 to 38 Degree of contmintion Mximum permissible degree of contmintion of the fluid is to NS 638 clss 9. We, therefore recommend filter with minimum retention rte of ß 7. Mx. perm. operting pressure t port... Control cover type LF..DR.-../... LF..DRW.-../... LF..DRE..-../ (primry pressure) 3 br 3 br... (secondry pressure = mx. settble pressure) 3 br 3 br... When controlling pressure zero pressure (up to 2 br) Sttic 6 br 3 br... When controlling pressure Sttic (corresponds to the permissible tnk pressure of the pilot vlves) zero pressure (up to 2 br) br Notes on pilot control vlves (not included within the scope of supply, must be ordered seprtely!) Directionl spool vlve (porting pttern form 6 to DIN 2 3) Directionl spool vlve Nominl size Ctlogue sheet no. Control cover 3WE 6 -../ DREWV, DREWZ 3WE / DRW roportionl pressure relief vlve roportionl pressure vlve Nominl size Ctlogue sheet no. Control cover DE-/... G DREV, DREWV DER-/... on request on request DREZ, DREWZ ossible pressure rtings,,, 3, 3 Vlve fixing screws re included within the scope of the control cover supply.