2-way cartridge valves; pressure functions

Transcription

1 Electric Drives nd Controls Hydrulics Liner Motion nd ssembly echnologies neumtics Service 2-wy crtridge vlves; pressure functions R 2 5/2.3 Replces: 6.98 /68 Models LC nd LF Nominl sizes 6 to Series 6; 7 Mximum operting pressure 2 br (692 SI) Mximum flow 7 L/min (85 GM) ble of contents H//D 5593 Contents ge Contents ge Function, section, symbols Generl 2 ressure relief function 2 ressure reducing function 2, 3 ressure sequencing function 3 Cvity nd porting pttern ressure relief function: Crtridge vlve type LC. D : Ordering detils 5 Symbols 5 echnicl dt 5 Chrcteristic curves 6 Sel kits 2 Compression springs 2 referred types 2 Control cover type LF. D : Ordering detils (generl) 3 echnicl dt ilot vlves 5 Symbols (bsic symbols) 6 R-rings for pilot oil connections 7 Sel kits 7 Fixing screws 7 Orifi ce dimensions 7 Ordering detils, symbols nd unit dimensions: ype D 8 2 ypes DW; DS 2 25 ype DWD ype DU ype DU3D ype DE 38 ype DEM 39 2 ressure reducing function: Crtridge vlve type LC. DR : Ordering detils 3 Symbol 3 echnicl dt 3 Chrcteristic curves 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) 5 Continued on pge 2

2 2/68 osch Rexroth Corp. Industril Hydrulics Models LC nd LF R 25/2.3 Overview of contents Contents ge R-rings for the pilot oil connections 5 Fixing screws 5 Generl dimensions 52 Ordering detils, symbols nd unit dimensions: ype DR 53, 5 ype DRW ypes DREV; DREZ 57, 58 ypes DREWV; DREWZ Contents ge ressure sequencing function: Control cover type LF. DZ : Ordering detils (generl) 6 Symbols (bsic symbols) 6 echnicl dt 62 R-rings for the pilot oil connections 62 Sel kits 63 Fixing screws 63 Orifi ce dimensions 63 Ordering detils, symbols nd unit dimensions: ype DZ 6, 65 ype DZW 66, 67 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 into cvity which is stndrdised to DIN ISO 7368 nd is seled by the 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 (2) s pilot vlve with interfce connections to DIN 2 3. y combining the crtridge vlve with the control covers different pressure functions cn be relised ressure relief function 3 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 supply orifi ce (5) 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 reltion to the pressure-fl ow chrcteristics. LC..D.D... ** LC..D.E... ype LF..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 tht 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 orifi ce. 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 fl ow from port to port. On reching the set pressure, the spool closes nd reduces the pressure t port in reltion to the pressure-fl ow chrcteristics. ** ype LC..D... E.g. ype LF..D... ype LC..DR...

3 Models LC nd LF R 25/2.3 Industril Hydrulics osch Rexroth Corp. 3/68 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 orifi ce nd the open pilot vlve to side. he min spool opens nd llows free-fl ow from port to port. On reching the set pressure, the spool closes nd reduces the pressure t port in reltion to the pressure-fl ow chrcteristics. ossible excess pressures occurring on the secondry side re led wy to tnk vi the third port of the pilot vlve. y fi tting 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 Z 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 version LF..DZW..., the required spool position my be selected by mens of n electriclly operted pilot vlve (not included with the scope of control cover LF..DZW... supply) in ddition to the norml hydrulic control. Circuit exmples 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 fl owing 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 fl ow 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 Z ype LF..DZ... ype LC..D2D... Z ype LF..DZ... ype LC..D2D... RV System 2 HD ND System

4 /68 osch Rexroth Corp. Industril Hydrulics Models LC nd LF R 25/2.3 Instlltion cvity nd porting pttern to DIN ISO dimensions in mm (inches) H (H*) H8 ØD7 H3 ; L L±,2 L3±,2 L±,2 ØD3 (D3*) H9 3 2 ØD6 mx. (,,Z,) ØD7 H3 ; 8 x D5; H ØD6 mx. (,,Z,) W 5 = R mx = R mx 8 Z = R z NS 6 to 63 NS 8, Z L L2±,2 L5±,2 L±,2 35 Z ØD H7 5 Z L3±,2 L±,2 Z Z ØD2 ØD H x D5; H L5±,2 7 ØD6 mx. (,,Z,) L2±,2 ØD7 H3 ; 5 H7 7 H6 H5 H3±,.5 H2 +, L2±,3 L 8 NS ØD H (.26) (.77 (2.362) (2.953) (3.53) (.72) (5.79) (7.87) ØD (.63) (.98) (.26) (.569) (.969) (2.8) (3.5) (3.937) ØD (.63) (.98) (.26) (.575) (.969) (2.8) (3.5) (3.937) (ØD3*) (.98) (.26) (.575) (.969) (2.8) (3.5) (3.937) (.92 ØD H (.98) (.339) (.772) (2.65) (2.677) (3.53) (.33 (5.35) ØD5 M8 M2 M6 M2 M2 M3 M2 M3 (5/6 ) (/2 ) (5/8 ) (3/ ) (7/8 ) (-/ ) ( ) (-/ ) ØD (.57) (.236) (.35) (.39) (.39) (.72) (.63) (.787) ØD7 H (.57) (.236) (.236)) (.236) (.35) (.35) (.39) (.39) H (.3) (.73) (2.5) (2.52) (2.83) (3.7) (5.2) (6.) (H*) (.6) (.59) (.89) (2.32) (2.58) (3.) (.72) (5.59) H (2.2) (2.83) (3.35) (.3) (.8) (6.) (8.7) (9.65) H ±.2 2 ±.2 (.69) (2.28) (2.76) (3.3) (3.9) (5.2) (6.89) (8.27) H (.79) (.98) (.38) (.77) (.77) (2.56) (.97) (2.8) H (.3) (.7) (.5 (.59) (.67) (.79) (.98) (. H (.8) (.) (.) (.2) (.2) (.6) (.2) (.2) H (.79) (.8) (.8) (.8) (.38) (.57) (.57) (.97) H (.8) (.) (.) (.2) (.6) (.6) (.2) (.2) H (.2) (.) (.6) (.) (.) (.2) (.8) (.8) L 65/ Ø25 Ø3 (2.56/3.5) (3.35) (.2) (.92) (5.5 (7.9) (9.8) (.8 L Ø2 Ø25 (.8 (2.28) (2.76) (3.35) (3.9) (.92) (7.87) (9.65) L (.9 (. (.38) (.67) (.97) (2.6) L (.98) (.3) (.6 (.97) (2.28) (2.95) L (. (.63) (.67) (.9 (.8) (.5) W (.2) (.2) (.) (.) (.) (.8) (.8) (.8) Depth of fi t Mx. dim. 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 centrl xis of port. Cre must however be tken to ensure tht the fi xing holes nd control holes re not dmged. 5 Drilling for loction pin (cover loction pin fi tted to DIN 2 32) 6 Note on NS 6 porting pttern: Length L (xis x y drilling) is 8 mm. 7 For Ø 5 mm fi t H8 is permitted! 8 Drilling for locting pin with functions s min pressure relief vlve (cover locting pin hs to be ppropritely relocted during ssembly)

5 Models LC nd LF R 25/2.3 Industril Hydrulics osch Rexroth Corp. 5/68 ressure relief function Ordering detils: pressure relief crtridge vlve (without control cover) LC D Nominl size 6 = 6 Nominl size 25 = 25 Nominl size 32 = 32 (Series 7) Nominl size = Nominl size 5 = 5 Nominl size 63 = 63 Nominl size 8 (Series 6) = 8 Nominl size = Opening pressure pprox. br (without spring) = Opening pressure pprox. 2 br (29 SI) = 2 Opening pressure pprox. 3 br ( SI) = 3 Opening pressure pprox. br (58 SI) = Opening pressure pprox. 5 br (73 SI) = 5 2) Opening pressure pprox. 8 br (6 SI) = 8 3) E = D = = = No code = NR sels V FKM sels (other sels on request) ttention! he comptibility of the sels nd pressure fl uid 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 orifi ce (stndrd) Spool poppet vlve without orifi ce (stndrd) oppet vlve with orifi ce Spool poppet vlve with orifi ce Opening pressure 3. br only with NS6 for fi tting pilot operted pressure relief vlve type DC. -5/ SO87 (see ctlogue sheet RE 25 82) 2) Only with NS 6, 25 nd 32 3) Specil instlltion spce is required (see pge 2) Symbols: crtridge vlves (for versions see ordering detils) oppet vlve without orifi ce Version E oppet vlve with orifi ce Version Spool poppet vlve without orifi ce Version D Spool poppet vlve with orifi ce Version echnicl dt (for pplictions outside these prmeters, plese consult us!) ressure fl uid Minerl oil (HL, HL) to DIN 5 52 ; Fst bio-degrdble pressure fl uids to Suitble for NR nd FKM sels VDM (lso see RE 9 22; HEG (rpe seed oil) ; 2) Only suitble for FKM sels HEG (polyglycols) 2) ; HEES (synthetic ester) 2) ; Other pressure fl uids on request ressure fl uid temperture rnge C (F ) 3 to + 8 ( 86 to + 76) for NR sels 2 to + 8 ( 68 to + 76) for FKM sels Viscosity rnge mm 2 /s (SUS) 2.8 to 38 (3 to 76 Clenliness clss to ISO code Mximum permissible degree of contmintion of the pressure fl uid is to ISO 6 (C) clss 2/8/5 3) 2-wy crtridge vlve Mximum operting pressure orts nd br (SI) 2 Mximum fl ow (recommended) NS oppet vlve crtridges E nd L/min (GM) (79) (9) (59) (26) (23) (66) (89) (89) Spool vlve crtridges D nd L/min (GM) (6) (79) (9) (8) (37) (62) (85) (29) 3) he clenliness clss stted for the components must be dhered to in hydrulic systems. Effective fi ltrtion prevents fults from occurring nd t the sme time increses the component service life. For the selection of fi lters see ctlogue sheets RE 5 7, RE 5 76 nd RE 5 8.

6 6/68 osch Rexroth Corp. Industril Hydrulics Models LC nd LF R 25/2.3 Chrcteristic curves: NS 6 - mesured with HL 6; ϑ oil -/ = C ( F) ± 5 C ( F) 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 by the pressure being pplied t port. Mnul pressure djustment, type LF 6 D nd type LF 6 DW ypss pressure in br (SI) Lowest settble pressure 2) in br (SI) ypss pressure in br (SI) Lowest settble pressure 2) in br (SI) 5 (28) (5) 5 (73) 5 (28) (5) 5 (73) 5 (28) (5) 5 (73) 5 (28) (5) 5 (73) ype LC 6 D.E (with poppet vlve) 5 (3) 5 (3)..D....D2.. (26) 5 () 2 Flow in L/min (GM) ype LC 6 D.D (with poppet spool vlve) 5 (3) 5 (3)..D....D2.. (26) 5 () Flow in L/min (GM)..D....D (66) 25 (66) Electricl proportionl pressure djustment, type LF 6 DE Lowest settble pressure in br (SI) Lowest settble pressure in br (SI)..D....D2.. (26) (26) 5 () 5 () 2) 2) ype LC 6 D.E (with poppet vlve) Flow in L/min (GM) 2 ype LC 6 D.D (with poppet spool vlve) Flow in L/min (GM) 2 25 (66) 25 (66) Inlet pressure in br (SI) Inlet pressure in br (SI) Inlet pressure in br (SI) Inlet pressure in br (SI) 35 (576) 3 (35 25 (3626) 2 (29 5 (276) (5) 5 (725) 35 (576) 3 (35 25 (3626) 2 (29 5 (276) (5) 5 (725) 35 (576) 3 (35 25 (3626) 2 (29 5 (276) (5) 5 (725) 35 (576) 3 (35 25 (3626) 2 (29 5 (276) (5) 5 (725) 5 (3) (26) 5 () 2 Flow in L/min (GM) 5 (3) 5 (3) (26) 5 () 2 Flow in L/min (GM) 5 (26) () Flow in L/min (GM) 5 (3) (26) 5 () 2 2 Flow in L/min (GM) 25 (66) 25 (66) 25 (66) 25 (66)

7 Models LC nd LF R 25/2.3 Industril Hydrulics osch Rexroth Corp. 7/68 Chrcteristic curves: NS 25 - mesured with HL 6; ϑ oil -/ = C ( F) ± 5 C ( F) 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 by the pressure being pplied t port. Mnul pressure djustment, type LF 25 D nd type LF 25 DW 35 (576) ype LC 25 D.E (with poppet vlve) 5 (28) 3 (35 ypss pressure in br (SI) Lowest settble pressure 2) in br (SI) ypss pressure in br (SI) Lowest settble pressure 2) in br (SI) (5) 5 (73) 5 (28) (5) 5 (73) 5 (28) (5) 5 (73) 5 (28) (5) 5 (73) (26) (26) (26)..D....D.. 2..D2....D D2.. 3 (79) 3 (79) 3 (79)..D.. (6) ype LC 25 D.D (with poppet spool vlve) (6) Electricl proportionl pressure djustment, type LF 25 DE Lowest settble pressure in br (SI) Lowest settble pressure in br (SI) (26)..D....D ) Flow in L/min (GM) 2) Flow in L/min (GM) ype LC 25 D.E (with poppet vlve) Flow in L/min (GM) (6) ype LC 25 D.D (with poppet spool vlve) 3 (79) Flow in L/min (GM) (6) Inlet pressure in br (SI) Inlet pressure in br (SI) Inlet pressure in br (SI) Inlet pressure in br (SI) 25 (3626) 2 (29 5 (276) (5) 5 (725) 35 (576) 3 (35 25 (3626) 2 (29 5 (276) (5) 5 (725) 35 (576) 3 (35 25 (3626) 2 (29 5 (276) (5) 5 (725) 35 (576) 3 (35 25 (3626) 2 (29 5 (276) (5) 5 (725) 5 (3) 5 (3) 5 (26) () 5 (26) () (66) (79) Flow in L/min (GM) (66) (79) Flow in L/min (GM) 35 (92) (5) 35 (92) (5) (3) (26) () (66) (79) (92) (5) Flow in L/min (GM) (3) (26) () (66) (79) (92) (5) Flow in L/min (GM)

8 8/68 osch Rexroth Corp. Industril Hydrulics Models LC nd LF R 25/2.3 Chrcteristic curves: NS 32 - mesured with HL 6; ϑ oil -/ = C ( F) ± 5 C ( F) 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 by the pressure being pplied t port. Mnul pressure djustment, type LF 32 D nd type LF 32 DW ypss pressure in br (SI) Lowest settble pressure 2) in br (SI) ypss pressure in br (SI) Lowest settble pressure 2) in br (SI) 5 (28) (5) 5 (73) 5 (28) (5) 5 (73) ype LC 32 D.E (with poppet vlve) (26) (26)..D....D D2.. 3 (79) 3 (79)..D2.. (6) Flow in L/min (GM) (6) 2) 5 (32) 5 (32) 6 (59) ype LC 32 D.D (with poppet spool vlve) 2) Flow in L/min (GM) 6 (59) Inlet pressure in br (SI) Inlet pressure in br (SI) 35 (576) 3 (35 25 (3626) 2 (29 5 (276) (5) 5 (725) 35 (576) 3 (35 25 (3626) 2 (29 5 (276) (5) 5 (725) (26) (26) (79) 3 (79) (6) Flow in L/min (GM) (6) Flow in L/min (GM) 5 (32) 5 (32) 6 (59) 6 (59) Electricl proportionl pressure djustment, type LF 32 DE ype LC 32 D.E (with poppet vlve) 5 (28) Lowest settble pressure in br (SI) (5) 5 (73)..D....D2.. Inlet pressure in br (SI) 35 (576) 3 (35 25 (3626) 2 (29 5 (276) (5) 5 (725) Lowest settble pressure in br (SI) 5 (28) (5) 5 (73) (26) (26)..D....D (79) 3 (79) (6) Flow in L/min (GM) (6) 5 (32) 5 (32) 6 (59) ype LC 32 D.D (with poppet spool vlve) Flow in L/min (GM) 6 (59) Inlet pressure in br (SI) 35 (576) 3 (35 25 (3626) 2 (29 5 (276) (5) 5 (725) (26) (26) 2 3 (79) (6) Flow in L/min (GM) 2 3 (79) (6) Flow in L/min (GM) 5 (32) 5 (32) 6 (59) 6 (59)

9 Models LC nd LF R 25/2.3 Industril Hydrulics osch Rexroth Corp. 9/68 Chrcteristic curves: NS - mesured with HL 6; ϑ oil -/ = C ( F) ± 5 C ( F) 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 by the pressure being pplied t port. Mnul pressure djustment, type LF D nd type LF DW ype LC D.E (with poppet vlve) 2 (29) 35 (576) 3 (35 2) 5 (28) 25 (3626) ypss pressure in br (SI) Lowest settble pressure 2) in br (SI) ypss pressure in br (SI) Lowest settble pressure 2) in br (SI) (5) 5 (73)..D....D (6) (59) (2 Flow in L/min (GM) ype LC D.D (with poppet spool vlve) (26) 2 (29 5 (276) (5) 5 (725) 2 (29) 35 (576) 2) 3 (35 5 (28) 25 (3626) (5) 5 (73) 2..D....D2.. 6 (6) (59) Flow in L/min (GM) 8 (2 (26) Inlet pressure in br (SI) Inlet pressure in br (SI) 2 (29 5 (276) (5) 5 (725) 2 (6) 6 (59) Flow in L/min (GM) 2 (6) 6 (59) Flow in L/min (GM) 8 (2 8 (2 (26 (26 Electricl proportionl pressure djustment, type LF DE ype LC D.E (with poppet vlve) 2 (29) 35 (576) 3 (35 Lowest settble pressure in br (SI) 5 (28) (5) 5 (73)..D....D2.. Inlet pressure in br (SI) 25 (3626) 2 (29 5 (276) (5) 5 (725) Lowest settble pressure in br (SI) 5 (28) 2 6 (6) (59) Flow in L/min (GM)..D....D2.. 8 (2 (26) ype LC D.D (with poppet spool vlve) 2 (29) 35 (576) 3 (35 (5) 5 (73) Inlet pressure in br (SI) 25 (3626) 2 (29 5 (276) (5) 5 (725) 2 6 (6) (59) Flow in L/min (GM) 8 (2 ( (6) (59) Flow in L/min (GM) 8 (2 (26) 2 (6) 6 (59) Flow in L/min (GM) 8 (2 (26

10 /68 osch Rexroth Corp. Industril Hydrulics Models LC nd LF R 25/2.3 Chrcteristic curves: NS 5 - mesured with HL 6; ϑ oil -/ = C ( F) ± 5 C ( F) 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 by the pressure being pplied t port. Mnul pressure djustment, type LF 5 D nd type LF 5 DW ypss pressure in br (SI) Lowest settble pressure 2) in br (SI) ypss pressure in br (SI) Lowest settble pressure 2) in br (SI) ype LC 5 D.E (with poppet vlve) 3 (35) 35 (576) 25 (363) 2 (29) 2) 3 (35 25 (3626) 5 (28) (5)..D.. 2 (29 5 (276) 5 (73) (5) 5 (725)..D (32) (26) (396) (528) Flow in L/min (GM) ype LC 5 D.D (with poppet spool vlve) 3 (35) 35 (576) 25 (363) 3 (35 2 (29) 25 (3626) 2 (29 5 (28) (5)..D.. 5 (276) (5) 5 (73) 2) 5 (725)..D (32) (26) (396) Flow in L/min (GM) 2 (528) Electricl proportionl pressure djustment, type LF 5 DE Lowest settble pressure in br (SI) Lowest settble pressure in br (SI) ype LC 5 D.E (with poppet vlve) 3 (35) 35 (576) 25 (363) 2 (29)..D.. 3 (35 25 (3626) 5 (28) 2 (29 5 (276) (5)..D2.. (5) 5 (73) 5 (725) 5 (32) (26) 5 (396) Flow in L/min (GM) ype LC 5 D.D (with poppet spool vlve) 2 (528) 3 (35) 35 (576) 25 (363) 2 (29)..D.. 3 (35 25 (3626) 5 (28) 2 (29 5 (276) (5)..D2.. (5) 5 (73) 5 (725) 5 (32) (26) 5 (396) Flow in L/min (GM) Inlet pressure in br (SI) Inlet pressure in br (SI) Inlet pressure in br (SI) Inlet pressure in br (SI) 2 (528) 5 (32) 5 (32) 5 (32) 5 (32) 5 (26) (396) Flow in L/min (GM) (26) (26) (26) 5 (396) Flow in L/min (GM) 5 (396) Flow in L/min (GM) 5 (396) Flow in L/min (GM) 2 (528) 2 (528) 2 (528) 2 (528)

11 Models LC nd LF R 25/2.3 Industril Hydrulics osch Rexroth Corp. /68 Chrcteristic curves: NS 63 - mesured with HL 6; ϑ oil -/ = C ( F) ± 5 C ( F) 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 by the pressure being pplied t port. Mnul pressure djustment, type LF 63 D nd type LF 63 DW ypss pressure in br (SI) Lowest settble pressure 2) in br (SI) ypss pressure in br (SI) Lowest settble pressure 2) in br (SI) ype LC 63 D.E (with poppet vlve) 3 (35) 35 (576) 25 (363) 2 (29) 2) 3 (35 25 (3626) 2 (29 5 (28)..D.. 5 (276) (5) (5) 5 (73) 5 (725)..D2.. 5 (32) (26) 5 (396) 2 (528) 25 (66) ype LC 63 D.D (with poppet spool vlve) 3 (35) 35 (576) 3 (35 25 (363) 2)..D.. 25 (3626) 2 (29) 2 (29 5 (28) 5 (276) (5) 5 (73) 5 (32) (26) Flow in L/min (GM)..D2.. 5 (396) Flow in L/min (GM) 2 (528) 25 (66) Inlet pressure in br (SI) Inlet pressure in br (SI) (5) 5 (725) 5 (32) 5 (32) (26) (26) 5 (396) Flow in L/min (GM) 5 (396) Flow in L/min (GM) 2 (528) 2 (528) 25 (66) 25 (66) Electricl proportionl pressure djustment, type LF 63 DE Lowest settble pressure in br (SI) ype LC 63 D.E (with poppet vlve) 3 (35) 35 (576) 25 (363) 3 (35 2 (29)..D.. 25 (3626) 2 (29 5 (28) 5 (276) (5) 5 (73)..D2.. Inlet pressure in br (SI) (5) 5 (725) 5 (32) (26) 5 (396) 2 (528) Flow in L/min (GM) 25 (66) 5 (32) (26) 5 (396) 2 (528) Flow in L/min (GM) 25 (66) Lowest settble pressure in br (SI) ype LC 63 D.D (with poppet spool vlve) 3 (35) 35 (576) 25 (363) 3 (35 2 (29) 25 (3626) 2 (29 5 (28)..D.. 5 (276) (5) (5) 5 (73) 5 (725)..D (32) (26) (396) (528) Flow in L/min (GM) 25 (66) Inlet pressure in br (SI) 5 (32) (26) 5 (396) 2 (528) Flow in L/min (GM) 25 (66)

12 2/68 osch Rexroth Corp. Industril Hydrulics Models LC nd LF R 25/2.3 Sel kits for crtridge vlves type LC... Nominl size Mteril No. NR sels FKM sels 6 R933 R R9335 R R9336 R9339 R R Nominl size Mteril No. NR sels FKM sels 5 R R R98732 R R9358 R9367 R9359 R9368 Compression springs for crtridge vlves type LC... NS Spring dimensions Opening Mteril in mm pressure in br No. (SI).2/.3 x.5/8. 2. (29) R96277./.6 x 38.2/9. 3. () R /.7 x 38./9.. (58) R /.9 x 35.7/ (73) R /2. x 6.5/.5 8. (6 ) R /2.25 x 55./8. 2. (29) R /2.7 x 53./ () R /2.8 x 53.5/8.5. (58) R /3. x 52.5/ (73) R96289./3.5 x 78.5/2. 8. (6 ) R /2.8 x 69.5/ (29) R /3.2 x 7./ () R /3. x 72./9.5. (58) R /3.5 x 72.8/9. 5. (73) R /. x 9/.5 8. (6 ) R9827 NS Spring dimensions Opening Mteril in mm pressure in br No. (SI) 25.9/.25 x 63./6. 2. (29) R /.5 x 68.5/6.. (58) R /5.3 x 5./. 8. (6 ) R /5. x 82./ (29) R /5.3 x 92./6.5. (58) R /6.5 x 37./.5 8. (6 ) R /6.5 x 8./7. 2. (29) R /6.5 x 27.5/7.5. (58) R /8.5 x 83.5/.5 8. (6 ) R /8 x 38/ (29) R /8 x 52.5/7.5. (58) R /9.5 x 76/ (29) R /9.5 x 95.5/9.5. (58) R9283 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). Stndrd types yp LC (Crtridge Vlve) Mteril-Number ype LF (Control Cover) Mteril-Number LC 6 DE7/ R LF 6 D2-7/35 R LC 6 DD7/ R99257 LF 32 D2-7/35 R LC DE7/ R LF D2-7/35 R LC DD7/ R9938 LF 5 D2-7/35 R LC 5 DE7/ R9938 LF 63 D2-7/35 R LC 5 DD7/ R9938 LF 6 DW2-7/35 R99285 LC 63 DE7/ R99387 LF 25 DW2-7/35 R9928 LC 63 DD7/ R LF 32 DW2-7/35 R99285 LF DW2-7/35 R LF 5 DW2-7/35 R99389 LF 63 DW2-7/35 R

13 Models LC nd LF R 25/2.3 Industril Hydrulics osch Rexroth Corp. 3/68 Generl notes on the ordering detils for control covers LF D mx D D2 = vilble Nominl size ype djustment Series ressure stge in br Sel ge type for nominl sizes mteril to 32 to D to DW to ; 5; DS ; 2; 2 to 25 35; For ordering detils, see pges giving detils of the individul cover vritions DWD to 28 DU2 29 to 32 DU to DU3D 33 to 37 2 DE 38 25; 5; 25; 5; DEM ; 2; ; 2; 39 to 2 35; 2 35; For functions, see selection tble on pge djustment types for pressure relief vlves = Rotry knob 2 = Hexgon with protective cp 3 = Lockble rotry knob with scle (H-key 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 stges Dependent on the norminl size nd permissible working pressure of the pilot vlve. For futher detils see ordering detils for the control cover ressure dt for D, only required for types DU2 nd DU3D ressure dt for D2, only required for type DU3D Ordering exmple for type DU3D /35* 2 (D mx /D/D2) *D mx. lwys fi rst he control covers re lwys fi tted with, optimised on our test rig, stndrd orifi ce. Orifi ce detils re therefore not required in the type code. Deviting operting conditions could mke it necessry to mtch the orifi ce size. he orifi ces re of the threded type. Orifi ce s shown within the min symbol

14 /68 osch Rexroth Corp. Industril Hydrulics Models LC nd LF R 25/2.3 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 Ctlog NS ype For pressure sheet No. control Sttic DD. 2 K2/ On request 6 to 32 D, DW, DWD, 2 35 DD. 6 K/ 2) 25 2 to 63 DU2., DU3D, 35 DD. K/ 2) , DEM, DS 35.WE to 63 DW, DWD, 35 2 (=); 6 (~).WE , DU2., DU3D 35 2 (=); 6 (~) M-3SEW to 63 DW, DS 2 M-3SED to 63 DW, DS 35 - M-3SEW , DW, DS 2 M-3SED , DW, DS 35 - DE-6/ G to 32 DE, DEM 35 DE-6/G DE, DEM 35 DE-6/ G2 On request 5 to DE, DEM 35 DER On request 6 to uf nfrge Zero pressure (up to 2 br) Included in type code Hs to be specilly ordered ossible pressure stges: 25, 5,, 2, 35, 2 2) ossible pressure stges: 25, 5,, 2, 35, Note: y combining 2-wy crtridge vlve with pilot control vlve, vrious vlve functions cn be obtined. he following components my be considered with porting pttern form 6 (up to NS 63) nd form (NS 8 to ) DIN 2 3. Vlve fixing screws re included within the control cover scope of supply. Fixing screws: S.H.C.S. to DIN ilot control vlve Dimensions ightening torque ype in Nm M-3SEW 6 M5 x M-3SEW M6 x 5.5 M-3SED 6 M5 x M-3SED M6 x 5.5 ilot control vlve Dimensions ightening torque ype in Nm.WE 6 M5 x WE M6 x 5.5 DE M5 x echnicl dt (for pplictions outside these prmeters, plese consult us!) Mximum operting pressure br (SI) 2 (692) ttention: p mx ke the pilot control vlve into ccount! ressure fl uid Minerl oil (HL, HL) to DIN 5 52 ; Fst bio-degrdble pressure fl uids to Suitble for NR nd FKM sels VDM (lso see RE 9 22; HEG (rpe seed oil) ; 2) Only suitble for FKM sels HEG (polyglycols) 2) ; HEES (synthetic ester) 2) ; Other pressure fl uids on request ressure fl uid temperture rnge C (F ) 3 to + 8 ( 86 to + 76) for NR sels 2 to + 8 ( 68 to + 76) for FKM sels Viscosity rnge mm 2 /s (SUS) 2.8 to 38 (2.98 to 76 Clenliness clss to ISO code Mximum permissible degree of contmintion of the pressure fl uid is to ISO 6 (C) clss 2/8/5 3) 3) he clenliness clss stted for the components must be dhered to in hydrulic systems. Effective fi ltrtion prevents fults from occurring nd t the sme time increses the component service life. For the selection of fi lters see ctlogue sheets RE 5 7, RE 5 76 nd RE 5 8.

15 Models LC nd LF R 25/2.3 Industril Hydrulics osch Rexroth Corp. 5/68 ilot control vlves (selection tble) Nom. size to 63 6 to 32 = vilble 8 nd ype D b b ilot control vlve b Mnul pressure setting Without directionl vlve With directionl vlve osition osition b osition osition osition b Symbols (see pge 6) Directionl vlve unloding DW 3WE M-3SE.6C... WE6D... M-3SE.6U... 3WE9-... WED... M-3SE.6C... Open D function Open D function Open D function Open D function Open D function Isolting function DS DWD M-3SE.6U... M-3SE.C./... M-3SE.U./... 3WE WE WE6-... WE6M.. 3WE... WEM... D function Open D function D function Closed Open D function Open Closed D function Open Open 5 3 pressure stges 2 spressure stges DU2 DU2 DU3D WE6H... WEH... WE6D... WED... WE6D... WED... WE6H... WEH... WE6E... WEE... WE6D... WED... Open D function Dmx. function D function D function Dmx. function Open D function D2 function Dmx. function D function roportionl pressure setting version 6 7 roportionl vlves DE DEM DE-5/... DE-5/... Without mx. pressure sfety limittion With mx. pressure sfety limittion 8 9 Open = ypss circuit Closed = Crtridge vlve is hydruliclly locked D function = ressure relief function

16 6/68 osch Rexroth Corp. Industril Hydrulics Models LC nd LF R 25/2.3 Symbol overview (bsic symbols), pressrue relief function Vlid symbols 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 LF..DS.-../..NS to LF..DWD.-../..NS6 to LF..DU2.-../..NS6 to ** ** ** ** D ** D mx See pges 2 to 25 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 Models LC nd LF R 25/2.3 Industril Hydrulics osch Rexroth Corp. 7/68 R-ring dimensions for ports, (included within the scope of supply) NS Dimensions Mteril No. mm NR FKM 6 8. x. x.78 R9257 R x.5 x.78 R9753 R x.6 x.78 R9755 R976, 5 3. x 2.3 x 2.62 R9757 R x 2.62 x 2.62 R925 R x 3.53 x 3.53 R9766 R x 3.53 x 3.53 R9772 R97633 Sel kits for control cover type LF.. Sel kit for LF.....D..; DW..;..DS....DWD..;..DEM....DU2..;..DU3.. DE.. Mteril No. NS 6 NS 25 NS 32 NS NR FKM NR FKM NR FKM NR FKM R R R R R93382 R93383 R R R93379 R9337 R9337 R93372 R93373 R9337 R R93376 R9337 R93372 R93373 R9337 R93375 R93376 R93377 R93378 Sel kit for LF... Mteril No. NS 5 NS 63 NS 8 NS NR FKM NR FKM NR FKM NR FKM..D..; DW..;..DS....DWD..; R R R R R93533 R9335..DU2..;..DU3.. R93377 R93378 R93379 R93372 R9329..DE.. R R R R9337..DEM.. R R93389 R R R9393 R93229 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 M 2 x 5 32 M 6 x 6 27 M 2 x M 2 x M 3 x M 2 x M 3 x 2 8 Orifice thred size D orifi ces for type..de.. NS 25 to 63 Orifi ces for NS 8, Other built-in orifi ces M8 x tpered M8 x tpered (**, **, **, ) or G / (**, ) M6 tpered

18 8/68 osch Rexroth Corp. Industril Hydrulics Models LC nd LF R 25/2.3 Control cover with mnul pressure djustment NS 6 to LF D Nom. size 6 Nom. size 25 Nom. size 32 Nom. size Nom. size 5 Nom. size 63 Nom. size 8 Nom. size Series 7 Series 6 = 6 = 25 = 32 = = 5 = 63 = 8 = djustment type Rotry knob = Hexgon with protective cp = 2 Lockble rotry knob with scle = 3 (H-key to utomotive industry stndrds) Rotry knob with scle not lockble = NS 6, 25,32 With NS 32 2 = SE threded externl connections nd UNC mounting bolts = Metric threded connections No code = NR sels V = FKM sels (other sels on request) ttention! he comptibility of the sels nd pressure fl uid hs to be tken into ccount! ressure stges NS 6, 25,32 NS, 5, 63, 8, 25 = 25 br 25 = 25 br 5 = 5 br 5 = 5 br = br = br 2 = 2 br 2 = 2 br 35 = 35 br 35 = 35 br 2 = 2 br = br 6 = Series 6 (NS 8 nd ) 7 = Series 7 (NS 6 to 63) Dimensions in mm (inches) ** LF..D.-7/.. NS 6, 25, 32 With NS 6, 25 H H3 H2 L G / /2 (.6) 2 (.8) L3 ort optionlly s threded port 3 Locting pin djustment type 2 5 djustment type D 3 F L2 Only with version LF 32 D. 22/F SW 22 /F SW 2 (.65) 9 Ø35 DD.2K. L H 8 mx (3.5) 8 mx (3.5) Ø 5 6 djustment type 3 7 djustment type 8 Spce required to remove the key Nme plte Locknut 8 6; 7 Ø 32 (.26) NS **.8 (.3).8 (.3). (.39). (.39).2 (.5).8 (.3) H (.57) (.57) 5 (.97) H2 7 (.67) 9 (.75) 26 (.2) H3 5 (.59) 2 (.9) 28 (.) H 9 (.75) 9 (.75) 26 (.2) L 65 (2.56) 85 (3.35) (3.9) L2 8 (3.5) 85 (3.35) (3.9) L (.) 9 (.93) 56.5 (2.22) L 32.5 (.28) 5.5 (.79) 53 (2.7) ** Orifi ce Ø Orifi ce M6 tpered

19 Models LC nd LF R 25/2.3 Industril Hydrulics osch Rexroth Corp. 9/68 Control cover with mnul pressure djustment ** LF..D.-7/.. NS, 5, 63 NS, 5 H H2 D/ D/ 72 (2.83) 2 D F (.6) 9 mx (3.7) Ø 35 H 5 Ø 6 (2.36) 6; 7 Ø 6 (2.36) H3 3 (.6) L3 9 mx (3.7) 2 (.88) 32/F SW32 3/F SW3 DD.6K.. 9/F SW9 6/F SW6 8 2 (.79) NS 63 H H2 G/2; L L2 9/F SW9 32/F SW32 D Ø 35 (.38) F 72 (2.83) 9 DD.6K.. SW6 6/F SW3 3/F G/2; H L5 L ** Orifi ce Ø Orifi ce M6 tpered H3 Ø 6 (2.36) mx (3.7) 2 (.79) 2 (.88) 9 mx (3.7) 6; 7 Ø 6 (2.36) NS (.5).5 (.6) 2. (.8). (.39) 2. (.8) 2.5 (.) D G/ G/2 (SE-; (SE-8; 7/6-2) 3/-6) H 6 (2.36) 68 (2.68) 82 (3.29) H2 28 (.) 9.5 (.77) 3 (.8) H3 32 (.26) 3 (.3) 5 (.97) H 27 (.6) 35 (.38) 5.5 (.79) L 25 (.92) (5.5 8 (7.9) L2 69 (2.72) 8 (3.5) L3 89 (3.5) 5 (.3) L 76 (2.99) 8 (3.3 L5 6 (2.36) 7 (2.76) 2 (.7) (.55) L (.6) 3 (.6) 9 (3.5) 2 ort optionlly s threded port 2 ort optionlly s threded port 3 Locting pin djustment 2 5 djustment 6 djustment 3 7 djustment 8 Spce required to remove the key 9 Nme plte Locknut 9 (3.5) 9

20 2/68 osch Rexroth Corp. Industril Hydrulics Models LC nd LF R 25/2.3 Control cover with mnul pressure djustment ** LF...D.-6/... NS 8, NS 8, Dimensions in mm (inches) 8 5 H H2 6; 7 H3 DD.K.. 9/F SW9 3/F SW3 36/F SW36 G/2; Ø 38 (.5) 6/F SW6 68 (2.68) Ø 6 (2.36) 9 mx (3.5) 2 (.72) 2 9 mx (.79) (3.5) Ø 6 (2.36) F H 5 G/2; 2.5 (.) 3 F L8 D2 2.5 (.) G/2; 2 NS 8 ** 3. (.2) 3. (.2).2 (.5).5 (.6) D2 25 (9.8) 3 (.8 H (3.9) (3.9) H2 38 (.5) 38 (.5) H3 5 (.77) 5 (2. H 58 (2.28) 58 (2.28) L8 5 (.97) 5 (.97) 9 ** Orifi ce Ø Orifi ce G / tpered ort optionlly s threded port 2 ort optionlly s threded port 3 Locting pin djustment type 2 5 djustment type 6 djustment type 3 7 djustment type 8 Spce required to remove the key 9 Nme plte Locknut

21 Models LC nd LF R 25/2.3 Industril Hydrulics osch Rexroth Corp. 2/68 Control cover with mnul pressure djustment, for electricl unloding NS 6 to NS 6 NS 25 NS 32 NS NS 5 NS 63 Series 7 = 6 = 25 = 32 = = 5 = 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, 25, 32) For mounting directionl poppet vlve = DS (for NS, 5, 63, 8, ) No code = V = 2 = SE threded externl connections nd UNC mounting bolts = Metric threded connections NR sels FKM sels (other sels on request) ttention! he comptibility of the sels nd pressure fl uid hs to be tken into ccount! ressure stges (tke mx. perm. pressure of pilot vlve into ccount) djustment type Rotry knobe = Hexgon with protective cp = 2 Lockble rotry knob with scle = 3 (H-key to utomotive industry stndrds) Rotry knob with scle not lockble = NS 6, 25,32 25 = 25 br 5 = 5 br = br 2 = 2 br 35 = 35 br 2 = 2 br NS, 5, 63, 8, 25 = 25 br 5 = 5 br = br 2 = 2 br 35 = 35 br = br NS 6 to 63 6 = Series 6 (NS 8 nd ) 7 = Series 7 (NS 6 to 63) WE 6 D../.. 3WE /.. M-3SED 6 C../35 ** ** LF..DW.-7/... NS 6, 25, 32 WE 6 D../.. M-3SED 6 U../35 M-3SEW 6 U../2 3WE /.. M-3SEW 6 C../2 M-3SED 6 U../35 M-3SEW 6 U../2 M-3SED 6 C../35 ** ** M-3SEW 6 C../2 LF..DW.-7/... NS, 5, 63 LF..DS.-7/... NS, 5, 63

22 22/68 osch Rexroth Corp. Industril Hydrulics Models LC nd LF R 25/2.3 Control cover with mnul pressure djustment, for electricl unloding NS 6, 25, 32 Dimensions in mm (inches) Directionl spool vlve. WE 6... Directionl poppet vlve M-3SEW 6 U../ C Directionl poppet vlve M-3SED 6 U H3 H H2 G / /2 2 (.8) D F 3 9 L2 22/F SW 22 H DD.2K SW /F (.5) 8 mx (3.5) L L (.28) Ø 35 (.38) Ø (.57) L Ø 32 (.26) (.6) L6 L5.5 (.59) 2 (.65) 52 mx (2.5) 8 (.7 2 G / /2 5 6;7 8 NS ** ** H H2 H3 H H5 L L2 L3 L L5 L6 L (.39) (.3) (.39) (.3) (.57) (.67) (.59) (.75) (.) (2.56) (3.5) (.) (.28) (.38) (.28) (.67) (.39) (.3) (.39) (.3) (.57) (.75) (.9) (.75) (.) (3.35) (3.35) (.93) (.79) (.2) (.3 (.6) (.39) (.39) (.5) (.39) (.97) (.2) (.) (.2) (.6) (3.9) (3.9) (2.22) (2.7) (2.2) (.22) (.36) ** Orifi ce Ø Orifi ce M6 tpered ort optionlly s threded port 2 ort optionlly s threded port 3 Locting pin djustment type 2 5 djustment type 6 djustment type 3 7 djustment type 8 Spce required to remove the key 9 Nme plte Locknut Vlve fi xing screws re included within the control cover scopeof supply

23 Models LC nd LF R 25/2.3 Industril Hydrulics osch Rexroth Corp. 23/68 Control cover with mnul pressure djustment, for electricl unloding NS, 5 Dimensions in mm (inches) LF..DW.-7/... LF..DS.-../... Directionl spool vlve. WE 6... Directionl poppet vlve M-3SEW 6 U../ C Directionl poppet vlve M-3SED 6 U D/ D H H3 H2 (.6) F H5 SW3 3/F SW32 32/F H 6/F SW6 9/F SW9 H2* D F D/ 3 2 (.88) 9 mx (3.7) 2 (.79) L L3 L3* DD.6K.. L L (.28) 3 72 (2.83) Ø 35 (.38) 9 mx (3.7) Ø 6 (2.36) Ø 6 (2.36) L6 9.5 L5 (.59) D/ 2 5 6; 7 8 NS ** ** D H H2 H2* H3 H H5 L L3 L3* L L5 L6 L G/ (.3) (.5) (.5) (.39) SE; (.7) (2.36) (.8 (.67) (.26) (.6) (.57) (.92) (2.6) (2.72) (2.99) (2.68) (.7 (.85) 7/6-2) G/ (.3) (.6) (.6) (.8) (SE-8; (.55) (2.68) (2. (.77) (.3) (.38) (.97) (5.5 (2.66) (3.5) (3.3 (2.93) (2. (2. 3/-6) * Dimensions for control cover LF..DS.. ** Orifi ce Ø Orifi ce M6 tpered ort optionlly s threded port 2 ort optionlly s threded port 3 Locting pin djustment type 2 5 djustment type 6 djustment type 3 7 djustment type 8 Spce required to remove the key 9 Nme plte Locknut Vlve fi xing screws re included within the control cover scope of supply

24 2/68 osch Rexroth Corp. Industril Hydrulics Models LC nd LF R 25/2.3 Control cover with mnul pressure djustment, for electricl unloding NS 63 LF..DW.-7/... Dimensions in mm (inches) 72 (2.83) 82 (3.29) 5 (.97) G/2; 55 (2.7) 8 (7.9) 3 (.6) 32.5 (.28) SW6 6/F 9/F SW9 DD.6K.. (.6) 3 D F 7 (2.8) Directionl spool vlve WE 6... Ø 35 (.38).5 (.59) 9 G/2; (.6) 35 (.38) 5 (.77) 3 (.22) 87 (3.3) 2 9 (3.5) 3/F SW3 32/F SW32 Ø 6 (2.36) 9 mx (3.7) (.79) 2 (.88) 9 mx (3.7) 6; 7 Ø 6 (2.36) ort optionlly s threded port 2 ort optionlly s threded port 3 Locting pin djustment type 2 5 djustment type 6 djustment type 3 7 djustment type 8 Spce required to remove the key 9 Nme plte Locknut Vlve fi xing screws re included within the control cover scope of supply LF..DS.-.../... Directionl poppet vlve M-3SED 6 U Directionl poppet vlve U M-3SEW 6../ C D F ** ** DW (.39) (.8) (.) DS (.7) (.8) (.8) ** Orifi ce Ø Orifi ce M6 tpered

25 Models LC nd LF R 25/2.3 Industril Hydrulics osch Rexroth Corp. 25/68 Control cover with mnul pressure djustment, for electricl unloding NS 8, WE D... 3WE 9... M-3SED U../35 M-3SEW U../2 Dimensions in mm (inches) M-3SED C../35 ** ** ** ** 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 H H3 DD.K.. SW6 6/F SW99/F SW33/F SW3636/F H2 G/2; L8 2.5 (.) 3 9 Ø 38 (.5) F 3 (.22) Directionl spool vlve WE... D2 F 68 (2.68) 2.5 (.) H (.55) G/2; 2 Ø 6 (2.36) mx (3.5) 2 (.79) 2 (.72) 9 mx (3.5) 6; 7 Ø 6 (2.36) 5 ort optionlly s threded port 2 ort optionlly s threded port 3 Locting pin djustment type 2 5 djustment type 6 djustment type 3 7 djustment type 8 Spce required to remove the key 9 Nme plte NS 8 **.2 (.5).5 (.6) ** 3. (.2) 3. (.2) ** 3.5 (. 3.5 (. ** 2) 3. (.2) 3. (.2) (.) 2.5 (.) D2 25 (9.8) 3 (.8 H (3.9) (3.9) H2 3 (.8) 3 (.8) H3 5 (.77) 5 (2. H 52 (2.5) 52 (2.5) L8 75 (2.95) 85 (3.35) ** Orifi ce Ø Orifi ce M8 x tpered 2) Orifi ce G / tpered Locknut Vlve fi xing screws re included within the control cover scope of supply

26 26/68 osch Rexroth Corp. Industril Hydrulics Models LC nd LF R 25/2.3 Control cover with mnul pressure djustment, for isoltion functions NS 6 to LF DWD NS 6 NS 25 NS 32 NS NS 5 NS 63 Series 7 = 6 = 25 = 32 = = 5 = 63 NS 8 NS Series 6 djustment type Rotry knob = Hexgon with protective cp = 2 Lockble rotry knob with scle = 3 (H-key to utomotive industry stndrd) Rotry knob with scle not lockble = Series 6 (NS 8 nd ) Series 7 (NS 6 to 63) 2 = SE threded externl connections nd UNC mounting bolts = 8 = = No code = Metric threded connections NR sels V = FKM sels (other sels on request) = 6 = 7 ttention! he comptibility of the sels nd pressure fl uid hs to be tken into ccount! ressure stges (tke mx. perm. pressure of pilot vlve into ccount) NS 6, 25,32 25 = 25 br 5 = 5 br = br 2 = 2 br 35 = 35 br 2 = 2 br NS, 5, 63, 8, 25 = 25 br 5 = 5 br = br 2 = 2 br 35 = 35 br = br 3 WE 6../... 3 WE /... 3 WE /... ** ** WE 6 M../... b ** LF..DWD.-7/... NS 6 ** LF..DWD.-7/... NS 25, 32 3 WE /... 3 WE... 3 WE 9... ** WE M... b ** ** LF..DWD.-7/... NS, 5, 63 LF..DWD.-6/... NS 8,

27 Models LC nd LF R 25/2.3 Industril Hydrulics osch Rexroth Corp. 27/68 Control cover with mnul pressure djustment, for isoltion functions NS 6, 25, 32 Dimensions in mm (inches) 2 Directionl spool vlve. WE 6... H H2 G /; 2 H5 F SW22 SW (.5) 8 mx (3.5) Ø 35 (.38) H Ø (.57) (.7 Ø 32 (.26) H3 2 (.8) (.6) 3 L2 2 (.65) DD.2K mx (2.5) 5 6; 7 8 NS, 5 L L3 (.6) 32.5 (.28) G /; 2 L6 L5.5 (.59) 3 (.22) L7 L Directionl spool vlve. WE 6... H H2 D/ D H5 F 72 (2.83) H3 Ø 35 (.38) H ort optionlly s threded port 2 ort optionlly s threded port 3 Locting pin djustment type 2 5 djustment type 6 djustment type 3 7 djustment type 8 Spce required to remove the key 9 Nme plte Locknut Vlve fi xing screws re included within the control cover scope of supply L L3 (.6) (.6) 32.5 (.28) 9 3 L6 L5 2.5 (.59) 3 D/ DD.6K.. L7 32/F SW32 3/F SW3 9/F SW9 6/F SW6 L 9 mx (3.7) 5 Ø 6 (2.36) 8 6; 7 2 (.88) 9 mx (3.7) 2 (.79) For dimension tble see pge 28 Ø 6 (2.36)

28 28/68 osch Rexroth Corp. Industril Hydrulics Models LC nd LF R 25/2.3 Control cover with mnul pressure djustment, for isoltion functions NS 63 ; (2.83) H H2 G/2; DD.6K.. D Directionl spool vlve.we 6... Ø 35 (.38) F G/2; H NS 8, Directionl spool vlve.we... H H2 SW6 SW9 SW3 SW36 G/2; Ø 38 (.5) F DD.K.. 68 (2.68) Dimensions in mm (inches) H 8 Ø mx (3.5) H3 2 (.79) H3 2 (.72) 9 mx (3.5) 6; 7 Ø 6 (2. (.6) (.6) (.) 2.5 (.) G/2; L 3 (.6) 32.5 (.28) 35 (.38) 3 (.22) 87 (3.3) 9 (3.5) L8 D2 (.55) 7 (2.8) 9 (3.5).5 (.59) (.6 ort optionlly s threded port 2 ort optionlly s threded port 3 Locting pin djustment type 2 5 djustment type 6 djustment type 3 7 djustment type 8 Spce required to remove the key 9 Nme plte Locknut Vlve fi xing screws re included within the control cover scope of supply NS ** ** D D2 H H2 H3 H H5 L L L2 L3 L L5 L6 L7 L (.39) (.3) (.39) (.57) (.59) (.75) (.) (2.56) (3.5) (.28) (.38) (.28) (.67) (.39) (.3) (.39) (.57) (.75) (.9) (.75) (.) (3.35) (3.35) (.93) (.79) (.2) (.3 (.6) (.39) (.39) (.5) (.97) (.2) (.) (.2) (.6) (3.9) (3.9) (2.22) (2.7) (2.2) (.22) (.36).2.2. G/ (.5) (.5) (.39) (2.36) (.8 (.26) (.6) (.63) (.92) (2.6) (2.99) (2.68) (.7 (.85) (.7) G/ (.6) (.6) (.8) (2.68) (.97) (.3) (.38) (.79) (5.5 (2.76) (3.3 (2.95) (2. (2.5) (.55) (.7) (.8) (.) (3.29) (2.7) (.97) (.77) (7.9) (. (.2) (.) (9.9) (3.9) (2.6) (.77) (2.28) (2.95) (. (.2) (.) (.8 (3.9) (2.6) (2. (2.28) (3.35) ** Orifi ce Ø Orifi ce M6 tpered (NS ) or M8 x tpered (NS 8 nd ) 2) Orifi ce M6 tpered (NS ) or G / tpered (NS 8 nd )

29 Models LC nd LF R 25/2.3 Industril Hydrulics osch Rexroth Corp. 29/68 Control cover with 2 mnul pressure djusters, electriclly selectble NS 6 to NS 6 NS 25 NS 32 NS NS 5 NS 63 NS 8 Series 7 = 6 = 25 = 32 = = 5 = 63 NS Series 6 Control cover type De-energised D ( WE.. D) De-energised open ( WE.. H) De-energised D mx. ( WE.. D) (see symbols) LF = 8 = = DU2 = DU2 djustment type (detils only required for D Rotry knob = Hexgon with protective cp = 2 Lockble rotry knob with scle = 3 (H-key to utomotive industry stndrds) Rotry knob with scle not lockble = D mx.... D 2 = SE threded externl connections nd UNC mounting bolts = Metric threded connections No code = NR sels V = FKM sels (other sels on request) ttention! he comptibility of the sels nd pressure fl uid hs to be tken into ccount! ressure stges (tke mx. perm. pressure of pilot vlve into ccount) NS 6, 25,32 25 = 25 br 5 = 5 br = br 2 = 2 br 35 = 35 br 2 = 2 br NS, 5, 63, 8, 25 = 25 br 5 = 5 br = br 2 = 2 br 35 = 35 br = br 6 = Series 6 (NS 8 nd ) 7 = Series 7 (NS 6 to 63) WE 6 H../... b WE 6 D../... D WE 6 H../... b WE 6 D../... WE 6 D../... WE 6 D../... D D D ** ** D mx ** ** D mx ** D mx ** D mx LF..DU NS 6, 25, 32 LF..DU2.-7/... NS 6, 25, 32 LF..DU2.-7/... NS, 5, 63 LF..DU2.-7/... NS, 5, 63 WE WE D../... WE D../... b D D ** ** D mx D mx LF...DU2.-6/... NS 8, LF...DU2.-6/... NS 8,

30 3/68 osch Rexroth Corp. Industril Hydrulics Models LC nd LF R 25/2.3 Control cover with 2 mnul pressure djusters, electriclly selectble NS 6, 25, 32 Dimensions in mm (inches) Directionl spool vlve WE 6... H (.57) 2 H2 G / /2 D F D H5 D mx *) 2 (.79) H DD.2K., 5 7 DDS2K. 3 H3 (.6) 2 (.65) 3 L2 9 SW 22 SW 6; (.3) 88 (3.6) (.6 (.9) 8 mx (3.5) 8 (.7 L 5 (.77) 32.5 (.28) L3 L7 L Ø 35 (.38) Ø (.57) Ø 32 (.26) L6 L5.5 (.59) 52 mx (2.5) G / /2 2 5 NS ** ** H H2 H3 H H5 L L2 L3 L L5 L6 L (.39) (.3) (.39) (.3) (.57) (.67) (.59) (.75) (.) (2.56) (3.5) (.) (.28) (.38) (.28) (.67) (.39) (.3) (.39) (.3) (.57) (.75) (.9) (.75) (.) (3.35) (3.35) (.93) (.79) (.2) (.3 (.6) (.39) (.39) (.5) (.39) (.97) (.2) (.) (.2) (.6) (3.9) (3.9) (2.22) (2.7) (2.2) (.22) (.36) ** Orifi ce Ø Orifi ce M6 tpered ort optionlly s threded port 2 ort optionlly s threded port 3 Locting pin djustment type 2 5 djustment type 6 djustment type 3 7 djustment type 8 Spce required to remove the key 9 Nme plte Locknut Vlve fi xing screws M5 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 djustment type 2 is possible

31 Models LC nd LF R 25/2.3 Industril Hydrulics osch Rexroth Corp. 3/68 Control cover with 2 mnul pressure djusters, electriclly selectble NS, 5 NS 63 Dimensions in mm (inches) H 2 (.57) H2 D/ D D H5 F Dmx*) 3 Directionl spool vlve WE 6... Directionl spool vlve WE 6... DD.6K.., (.79) Ø 35 (.38) H 2 (.57) H H2 D Ø 35(.38) Dmx*) D F H 2 (.79) 3 DD.6K.., 5 7 L H3 L3 (.6) 5 (.77) 9 (.6) 32.5 (.28) (.3) L6 L5 ort optionlly s threded port 2 ort optionlly s threded port 3 Locting pin djustment type 2 5 djustment type 6 djustment type 3 7 djustment type 3 5 (.3).5 (.59) 3 D/ 2 72 (2.83) DDS6K.. 32/F SW32 3/F SW3 9/F SW9 6/F SW6 L7 8 Spce required to remove the key 9 Nme plte Locknut L L H3 5 (.77) 3 (.6) (.6) G/2; 32.5 (.28) Vlve fi xing screws M5 x 9 re included within the control cover scope 2 lug M6 tpered for..du lug M6 tpered for..du 2.. *) For D mx. only djustment type 2 is possible (.3) 9 (3.5) 3 5 (.3) 7 (2.8).5 (.59) DDS6K.. 6; (.6) 72 (2.83) G/2; 2 32/F SW32 3/F SW3 35 (.38) 87 (3.3) 9 mx (3.7) 2 (.88) 9 mx (3.7) ** Orifi ce Ø Orifi ce M6 tpered 9/F SW9 6/F SW6 9 (3.5) 5 Ø 6 (2.36) 8 2 (.79) Ø 6 (2.36) NS ** D H H2 H3 H H5 L L3 L L5 L6 L G/ (.5) (.5) (.39) (SE-; 7/6-2) (2.36) (.67) (.26) (.6) (.57) (.92) (2.72) (2.99) (2.68) (.7 (.85) (.7) G/ (.6) (.6) (.8) (SE-8; 3/-6) (2.68) (.77) (.3) (.38) (.97) (5.5 (3.5) (3.3 (2.93) (2. (2.5) (.55) (.) (.8) (.) (3.29 (2.7) (.97) (.77) (7.9)

32 32/68 osch Rexroth Corp. Industril Hydrulics Models LC nd LF R 25/2.3 Control cover with 2 mnul pressure djusters, electriclly selectble NS 8, Dimensions in mm (inches) Directionl spool vlve WE (2.76) (.33) D 68 (2.68) Ø 38 (.5) 35 (.38) 9 mx (3.5) 9 mx (3.5) Ø 6 (2.36) 2 (.79) Ø 6 (2.36) H H2 (.55) F H3 H G/2; 2.5 (.) (.) G/2; 2 DD.K.., ; 7 8 DDSK.. 7 (2.76) 6 (.8 *) Dmx F 3(.22) 5 (2.3) D2 L8 SW36 SW6 SW9 SW3 NS ** ** 2) 2) D2 H H2 H3 H L (. (.2) (.) (9.8) (3.9) (.8) (.77) (2.5) (2.95) (. (.2) (.) (.8 (3.9) (.8) (2. (2.5) (3.35) ort optionlly s threded port 2 ort optionlly s threded port 3 Locting pin djustment type 2 5 djustment type 6 djustment type 3 7 djustment type 8 Spce required to remove the key 9 Nme plte Locknut Vlve fi xing 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 djustment type 2 is possible ** Orifi ce Ø Orifi ce M8 x tpered 2) Orifi ce G / tpered

33 Models LC nd LF R 25/2.3 Industril Hydrulics osch Rexroth Corp. 33/68 Control cover with 3 mnul mnul pressure djusters, electriclly selectble NS 6 to LF DU3D Nom. size 6 Nom. size 25 Nom. size 32 Nom. size Nom. size 5 Nom. size 63 Nom. size 8 Nom. size Series 7 Series 6 = 6 = 25 = 32 = = 5 = 63 = 8 = djustment type (detils only for Dor D2)*) Rotry knob = Hexgon with protective cp = 2 Lockble rotry knob with scle = 3 (H-key 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 djustment type = 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 fl uid hs to be tken into ccount! ressure stges (tke mx. perm. pressure of pilot vlve into ccount) NS 6, 25,32 25 = 25 br 5 = 5 br = br 2 = 2 br 35 = 35 br 2 = 2 br 2 = SE threded externl connections nd UNC mounting bolts = Metric threded connections NS, 5, 63, 8, 25 = 25 br 5 = 5 br = br 2 = 2 br 35 = 35 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, 25, 32 LF..DU3D.-7/... NS, 5, 63 LF...DU3D.-6/... NS 8,