ump Safety lock odel D... / DW, Series X Sizes to 6 SI ( bar) 7 G (65 L/min) R 5 88/.95 Replaces:.9 ermits low pressure start-up and by-pass of pump Direct mounting to SE pressure port of pump Light biasing spring provides low by-pass pressure Small compression volume, permits smooth transition to by-pass mode Rapid pressure build up control options: Hand knob Hex screw with protective cap Lockable rotary knob with scale Hand knob with scale 6 pressure ratings Solenoid operated unloading via mounted directional valve Integral check valve (optional) Soft-shift plate (optional) (model DW... only) Functional description H/5/9 odel D5F-X/... H/8/9 odel DW5F-X/...6... ump safety valves, models D/DW are pilot operated pressure relief valves integrated within a sandwich block, which may be mounted directly on to pump SE pressure ports. D valves are used to limit system pressure, and DW valves are additionally equipped with solenoid unloading. he pump safety valves (D) consist basically of a valve body (), main cartridge insert () and pilot valve () with pressure adjustment. he valve housing is comprised of port for fluid input and port for output. When cartridge () is open, the connection to port "" (tank line) is open. ump Safety Valve odel D ressure at acts against the bottom of main cartridge (). Simultaneously, pressure signals are available through drillings (6) and (7), incorporating orifices () and (5) to the spring side of the main cartridge (), and poppet (8) in pilot valve (). If pressure at exceeds the force value at spring (9), poppet (8) opens. pilot signal is fed internally via control drillings () and (6) from. s main cartridge () opens, fluid escapes via orifice (7) past poppet (8) into spring chamber (). he pilot is drained either internally (type D...-X/..-.. ) via drilling (), or externally (type D..-X/...) via drilling () to tank. Orifices () and (5) create a pressure drop at main cartridge (). Fluid flows from port to port while the set pressure is maintained. pressure gauge can be used for remote control applications, at port. ump Safety Valve odel DR (with check valve) check valve may be integrated into the housing also, reducing the number of components, installation area, and the length of mounting bolts. X 8 9 5 7 ype D.R ype D 6 5 X X X
R 5 88/.95 Functional description ump Safety Valve, odel D.../ In principle, the operation of this version is the same as the D... However, it can also be controlled via port "" by means of external pressure. he pilot valve features a % switching pressure differential, so that when operating an accumulator via port "" a pressure drop of % occurs before the main valve closes again. 6 6 () 5 7 6 5 ump Safety Valve odel DW... In principle, the operation of this valve is the same as the D... However, unloading at main cartridge () is achieved by actuating a directional unloading valve (6). 6 8 7 () ump Safety Valve with Soft Shift (Sandwich plate) odel DW.../..S6.R odel DW.../..S6SL.. Soft shift plate (7) can be optionally installed to aid in smooth unloading. he decompression of pilot oil via to and further by orifice (8) permits a dampened transition during unloading. Shock caused by rapid opening can be drastically reduced. he degree of damping (decompression shock) is determined by the size of orifice (8).. mm diameter orifice is installed standard (order code..r.. or...). odel DW.../..S6.R odel DW.../..S6SL..
R 5 88/.95 Symbols ump safety relief D..-X/.... D..-X/... D..-X/... D..-X/... ump safety relief with check DR-X/... ump safety relief with directional unloading DW..-X/.... DW..-X/... DW..-X/... normally closed normally closed normally closed DW..-X/... normally closed DR-X/.... DR-X/... DR-X/... normally open normally open normally open normally open ump safety relief with directional unloading and check valve normally closed DWR..-X/.... DWR..-X/... DWR..-X/... DWR..-X/... normally closed normally closed normally closed normally open normally open normally open normally open
R 5 88/.95 echnical data (for applications outside these parameters please consult us) General Installation position Optional Weight Size Size 6 Size 5 Size Size ump safety D lbs. (kg) (6.) (6.) 5 (6.7) 8 (8) 5 (.) valve DW lbs. (kg) 6.8 (7.6) 6.8 (7.6) 8 (8). (9.) 7.8 (.6) Check valve lbs. (kg) +.5 (+.) +.5 (+.5) +.5 (+.5) +.7 (+.) +.9 (+.) ressure shock damping lbs. (kg) +. (+.6) (with directional spool valve) lbs. (kg) +. (+.6) (with directional poppet valve) echnical data for directional spool valve See data sheet R 77 echnical data for directional poppet valve See data sheet R 57 Hydraulic Operating pressure, ports,, SI (bar) up to 6 () Opening pressure (for DR ) SI (bar) (.5) ack pressure, port D SI (bar) up to 6 (5) DW SI (bar) up to (6) for DC and up to 5 () for C solenoids Setting pressure min. SI (bar) Flow-dependent (see echnical Data page ) max. SI (bar) 75 (5), 5 (), (), 6 (5), 5 (5), 6 () Flow, max Size Size 6 Size 5 Size Size D / DW G (L/min) 66 (5) 79 () 9 (5) 58 (6) 7 (65) DR / DWR G (L/min) 9 (5) 9 (5) 79 () 9 (5) 9 (5) Hydraulic fluid ineral oil (HL, HL) to DIN 5 5; phosphate-ester (HFD-R) Fluid temperature range F ( C) to 76 ( to +8) (with NR seals) to 76 ( to +8) (with Viton seals) Viscosity range SUS (mm /s) 6 to 7 ( to 8) Fluid cleanliness aximum permissible degree of contamination of fluid to NS 68 Class. We, therefore, recommend a filter with a minimum retention rate of ß 75. o ensure a long service life, we recommend a maximum permissible degree of contamination of fluid to NS 68 Class 9. We, therefore, recommend a filter with a minimum retention rate of ß. Operating curves, measured at ν = 9 SUS ( mm /s) and t = F (5 C) he curves are measured with external pilot oil drain at zero pressure. With internal pilot oil return the input pressure is increased by the back pressure present at port. (5) () () 6 Input pressure dependent on flow Input pressure SI (bar) (5) (5) () (5) () (5) () (5) 5 Size Size 6 Size 5 Size Size 6 8 6 8 (5) () (5) () (5) () (5) () (5) (5) (55) (6) (65) Flow G (L/min) (he curves are valid for an outlet pressure of p = over the entire flow range)
Operating curves, measured at ν = 9 SUS ( mm /s) and t = F (5 C) R 5 88/.95 he curves are measured with external pilot oil drain at zero pressure. With internal pilot oil return the input pressure is increased by the back pressure present at port. (8) (6) 5 inimum setting pressure and bypass pressure dependent on flow Standard model in. setting pressure, bypass pressure SI (bar) () () () (8) (6) () 5 5 Size Size 6 Size 5 Size Size () 6 8 6 8 (5) () (5) () (5) () (5) () (5) (5) (55) (6) (65) Flow G (L/min) (8) (6) inimum setting pressure and bypass pressure dependent on flow odel U 5 in. setting pressure, bypass pressure SI (bar) () () () (8) (6) () 5 5 Size Size 6 Size 5 Size Size () 6 8 6 8 (5) () (5) () (5) () (5) () (5) (5) (55) (6) (65) Flow G (L/min) (he curves are valid for an outlet pressure of p = over the entire flow range) 5
R 5 88/.95 Order codes D X * Without = No code directional valve With = W mounted directional valve With check valve = R 5 Without = No code check valve Size Size = Size 6 = 5 Size 5 = 5 Size = Size = Normally closed = Normally open = Connection / SE flange Standard pressure series = F High pressure series = H djustment mechanism Hand knob = djustment screw with protective cap = Lockable hand knob with scale = Hand knob with scale = 7 Series to 9 = X ( to 9: externally interchangeable) ressure setting to 75 SI (5 bar) = 5 ressure setting to 5 SI ( bar) = ressure setting to SI ( bar) = ressure setting to 6 SI (5 bar) = 5 ressure setting to 5 SI (5 bar) = 5 ressure setting to 6 SI ( bar) = (model "H" only) ilot oil supply and drain Internal pilot (standard) = External pilot = With external drain = With external pilot and drain = Standard model = No code Valve for minimum opening pressure = U odel "U" not suitable as cross port relief valve Without soft-shift plate = No code With soft-shift plate (model DW only) = S Further details to be written in clear text No code = NR seals, suitable for mineral oil (HL, HL) to DIN 5 5 V = F seals, suitable for phosphate-ester (HFD-R) R =. mm dia. orifices in port of the directional spool valve =. mm dia. orifices in port of directional poppet valve ype of electrical connection (for further electrical connections see data sheet R 8 ) 5 = ngled plug 55 = Large angled plug 55L = Large angled plug with light D = conduit box with /" npt connection DL = conduit box with /" npt connection and light No code = Without manual override N = With rubber button manual override N9 = With manual override (directional valves only) G = DC voltage V WR = DC solenoid with built-in rectifier for C voltage V frequency dependent (only for voltages V and 5 plugs) W-6 = C solenoid V 6 Hz (directional valves only) No code = Without directional valve 6 = With directional valve (standard valve up to 6 SI (5 bar) setting pressure) 6 = With directional valve (heavy duty valve up to 5 SI (5 bar) setting pressure) 6SL = With poppet valve (mandatory at pressures in excess of 5 SI (5 bar) Code only required for model with directional valve ( DW ). Key RR 858 is included in supply. Code only required for model with directional valve and soft-shift plate ( DW.../...S... ) lease note pressure ratings and connection dimensions on page 9. 5 Only to 6 SI (5 bar) 6
R 5 88/.95 Unit dimensions, odel D /DW with poppet valve: dimensions in inches (millimeters) 5 6 5. (.7).76 ().56 (6) /" npt (g ).59 (5) /" npt (g ).59 (5) 7 Required surface finish of mating piece./. in./ mm (R max ) 9.9 (5).9 (9).57 () 6.65 (69) 5.7 (5) 5. ().8 () 5 8.78 () 8 9.7 (8) Ø.6 (Ø ) H.7 () () /" S Ø.7 (Ø 5) H "X" Ø.55 (Ø 9.5) 6, 7 9 H6. (.7) () H5 H View X L 8 Ø D Ø D Ø D 9 /" S 6 H L L L5 5 Nameplate Open if internal drain ort for external drain djustment 5 djustment 6 djustment 7 djustment 7 8 Socket screw mm /F 9 Optional damping plate (soft-shift) Space required to remove key Space required to remove plug lock mounting holes oppet valve size 6 (see R 57) Solenoid rotates 9 ( x 9 ) 5 anual override 6* plug (rotates x 9 ) 7* 5 and 5L plugs (rotates x 9 ) 8 O ring (see dimensions table on page 9) 9 Integral check valve, model "R" * he additional 5, i.e. 5, 55 indicates /" npt cable connection For further dimensions see able on page 9 /F = cross Flats 7
R 5 88/.95 Unit dimensions, odel D /DW with directional valve: dimensions in inches (millimeters) 6 5.96 (5.5) 6.57 (67).6 (5).6 (5).6 (5) /" npt.6 (g ) (8) [.] [(87.5)] /" npt (g ).5 (89) [.68] [(9.5)] 9.9 (5).9 (9) 5 7.57 () 6.65 (69) 5.7 (5) 5. ().8 () 5 8.78 () 8 9.7 (8) Ø.6 (Ø ) H.7 () () /" S Ø.7 (Ø 5) H "X" Ø.55 (Ø 9.5) 6, 7 9 H6. (.7) () H5 H View X L 8 Ø D Ø D Ø D 9 /" S 6 H L L L5 5 8 Nameplate Open if internal drain ort for external drain djustment 5 djustment 6 djustment 7 djustment 7 8 Socket screw mm /F 9 Optional damping plate (soft-shift) Space required to remove key Space required to remove plug lock mounting holes Directional spool valve size 6 (see R 77) Solenoid a 5 anual override 6* plug 7* 5 and 5L plugs 8 O ring (see dimensions table on page 9) 9 Integral check valve, model "R" Dimension for standard valve Dimension [( )] for high performance valve * he additional 5, i.e. 5, 55 indicates /" npt cable connection For further dimensions see able on page 9 /F = cross Flats Required surface finish of mating piece./. in./ mm (R max )
Unit dimensions: dimensions in inches (millimeters) R 5 88/.95 ype Size L L L L L5 5 6 H H.8.7 6.9.77.8.68.5.6.89.57.55.89.68 () () (~ 65) (5) () (7.5) (8.) (55) (8) () (65) (99) (9) 6.8.7 6.9.77.8.87.87.6.89.57.55.89.68 () () (~ 65) (5) () (.) (7.6) (55) (8) () (65) (99) (9) 5.8 5.7 6.9.96.7..6.6.89.96.7.9.7 () (9) (~ 65) (5) (5) (6.) (5.) (6) (8) (5) (78) () ().76 5. 6.9.6.5.8..55.9.6.5..9 () (8) (~ 65) (55) (8.5) (.) (58.7) (65) (8.) (6) (9) (5) (5) 5. 6. 6.77..87..75.9.5.55..6 5. (8) (56) (~ 7) (5.5) (7.5) (5.8) (69.9) (7.5) (5.7) (65) () (8) (8).8.7 6.9.77.8.7.59.6.89.8..89.68 () () (~ 65) (5) () (8.5) (.5) (55) (8) (6) (5) (99) (9) 6.8.7 6.9.77.8.9..6.89.8..89.68 () () (~ 65) (5) () (.8) (5.8) (55) (8) (6) (5) (99) (9) 5.8 5.7 6.9.96.7.9.5.6.89.75.5.9.7 () (9) (~ 65) (5) (5) (7.8) (57.) (6) (8) (7) (8) () ().76 5. 6.9.6.5.5.6.55.9.5.7..9 () (8) (~ 65) (55) (8.5) (.8) (66.7) (65) (8.) (8) (95) (5) (5) 5. 6. 6.77..87...9.5.7..6 5. (8) (56) (~ 7) (5.5) (7.5) (6.6) (79.) (7.5) (5.7) (95) () (8) (8) D...H... D...F... ype Size H H H5 H6 Ø D Ø D Ø D orts and O ring Item 8 (mm).6 (). (79).7 (7).5 (9).5 (9).66 (7). (.) SE /" /" S 8.66 x.5 6.6 (). (79).7 (7).5 (9). ().78 (). (.) SE /" /" S 5 x.5 5.65 ().5 (8).9 (8). (8). ().98 (5).55 (9.) SE " " S.9 x.5.69 (). (85).69 (). (8). ().6 ().7 (.9) SE -/" -/" S 7.7 x.5.96 (5).85 (98). (56). (8).5 ().9 (8). (5.5) SE -/" -/" S 7. x.5.6 (). (79).7 (7).5 (9).5 (9).66 (7). (.) SE /" /" S 8.66 x.5 6.6 (). (79).7 (7).5 (9). ().8 (.5). (.) SE /" /" S 5 x.5 5.65 ().5 (8).9 (8). (8).5 ().98 (5).55 (9.) SE " " S.9 x.5.69 (). (85).69 (). (8).59 (5).6 ().7 (.9) SE -/" -/" S 7.7 x.5.96 (5).85 (98). (56). (8).66 (7).57 (). (5.5) SE -/" -/" S 7. x.5 D...F... D...H... ype Size Fixing screws DIN 9.9 ightening torque in lb-ft (Nm) D...H... D...F... x 55. (75) 6 x 55. (75) 5 x 55. (75) x 55. (75) x 95.8 () x 5 55. (75) 6 x 5 55. (75) 5 x 95.8 () x 5 5. (5) 6 x 5 8.6 () For model "R" only (with integrated check valve) Not included in supply (separate order) ermissible pressures for flange connections to SE 758 C Standard pressure series "F" High pressure series "H" SE /" 5 SI 5 bar 6 SI bar SE /" 5 SI 5 bar 6 SI bar SE " 5 SI 5 bar 6 SI bar SE -/" SI 8 bar 6 SI bar SE -/" SI bar 6 SI bar 9
R 5 88/.95 ermissible pumps, standard pressure version F ump safety valve D..F D. 5.F D. 5.F D..F D..F ump type ort SE /" SE /" SE " SE -/" SE -/" Variable displacement pump VSO7 Series to R 9 7 VSO8 VSO5 VSO7 Gear pump G-X/ G-X/9 G, Series X to R 9 G-X/ G-X/ G-X/6 G-X/8 G, Series X to R G-X/ G-X/6 G-X/5 G-X/7 G-X/8 G-X/ Internal gear pump GC-X/ GC-X/ GC5-X/ GC6-X/8 GC, Series X to R 5 GC-X/5 GC-X/5 GC5-X/5 GC6-X/ GC, Series X GC-X/6 GC-X/ GC5-X/6 GC6-X/5 GC-X/8 GC7-X/6 GC-X/ GC7-X/ GC-X/ GC7-X/5 GC-X/6 GH, SeriesX to R 8 GH-X/ GH-X/ GH5-X/ GH6-X/8 GH-X/5 GH-X/5 GH5-X/5 GH6-X/ GH-X/6 GH-X/ GH5-X/6 GH6-X/5 GH-X/8 GH-X/ GH-X/ GH-X/6 Vane pump V to R 6 V-X/5 VS7 = Series VS7 = Series ermissible pumps, high pressure version H ump safety valve D..H D. 5.H D. 5.H D..H D..H ump type ort SE /" SE /" SE " SE -/" SE -/" Fixed displacement pump FO FO5 FO8 FO5 Series 6 to R 9 FO8 FO56 FO9 FO6 FO FO6 FO7 FO8 FO Series 6 to R 9 5 F55 F5 F5 Industrial variable pump Series to R 9 5 VSO VSO7 VSO5 VSO5 Variable displacement pump Series 6. to R 9 7V5 7V55 7V5 Series to R 9 7 VSO VSO Series 5 to R 9 5 V5 V55 V5 annesmann Rexroth Corporation Rexroth Hydraulics Div., Industrial, 5 City Line Road, ethlehem, 87- el. (6) 69-8 Fax: (6) 69-867 Rexroth Hydraulics Div., obile, 7 Old ansfield Road, Wooster, OH 69-9 el. () 6- Fax: () 6- ll rights reserved Subject to revision rinted in U.S..