Pressure relief valve, pilot operated, Type DB(W) W65

Transcription

1 Industril Hydrulics Electric Drives nd Controls Liner Motion nd ssemly echnologies neumtics Service utomtion Moile Hydrulics RE 2 1/0.0 Replces: 0.0 ressure relief vlve, pilot operted, ype D(W) W6 Nominl sizes nd 2 Series 1; 4 Mx. operting pressure 0 r Mx. flow 400 L/min K ype D -1-4/..W6 HD 6964 ype DW 20 G2-4/... 6E...W6 K ype D 20 K1-4/... Overview of contents Contents ge Fetures 1 Ordering detils 2 Design tested pressure relief vlves Symols 4 Function, section 4 echnicl dt, 6 Generl guidelines 6 lug-in connector 6 Chrcteristic curves 7 Unit dimensions to 11 Instlltion cvities 11 referred types 12 Note: Design tested pressure relief vlves to pressure component directive 97/2/EG (revited to DGRL in ny further text) type D 20 K../..E, series 1, for ordering detils see pge. Fetures For suplte mounting orting pttern to DIN form E, ISO R (NS ), ISO R-0-2- (NS 2) nd CEO-R 121 H, Supltes to ctlogue sheet RE 4 06 (seprte order) For threded connections s crtridge vlve 4 djustment elements: Rotry kno Sleeve with hexgon nd protective cp Lockle rotry kno with scle Rotry kno with scle pressure stges Solenoid operted unloding vi uilt-on directionl vlve (only with threded connections) For further informtion regrding the pilot vlve see: High performnce directionl vlve to RE y osch Rexroth G, Industril Hydrulics, D-971 Lohr m Min ll rights reserved. No prt of this document my e reproduced or stored, processed, duplicted or circulted using electronic systems, in ny form or y mens, without the prior written uthoristion of osch Rexroth G. In the event of contrvention of the ove provisions, the contrvening prty is oliged to py compenstion. D(W) W6 1/12 RE 2 1/0.0

2 Ordering detils ressure relief vlve = D Without directionl vlve = No code With uilt-on directionl vlve = W 1) NS Ordering detils Suplte hreded Crtridge mounting connection vlve G K = = (G 1/2) 2 = 1 (G /4) = 20 = 20 (G 1) = 20 D Normlly closed = 2) Normlly open = 2) For suplte mounting = For threded connections = G s crtridge vlve (crtridge) = K djustment element Rotry kno = 1 Sleeve with hexgon nd protective cp = 2 Lockle rotry kno with scle = ) Rotry kno with scle = 7 Series to 19 (only version K ) = 1 ( to 19: unchnged instlltion nd connection dimensions) Series 40 to 49 (40 to 49: unchnged instlltion nd connection dimensions) = 4 Settle pressure up to 0 r = 0 Settle pressure up to 0 r = 0 Settle pressure up to 200 r = 200 Settle pressure up to 1 r = 1 Settle pressure up to 0 r (only version D) = 0 ilot oil supply nd pilot oil drin Internl pilot oil supply nd pilot oil drin = ) Externl pilot oil supply, internl pilot oil drin lso see = Internl pilot oil supply, externl pilot oil drin symols = Externl pilot oil supply nd pilot oil drin on pge 4 = referred types, see pge 12, re redily ville! Further detils in cler text Design tested: No code= Without E = Sfety vlve with design testing to DGRL 97/2/EG W6 = Verticl crtridge (ordering detils re not required for crtridge vlve K ) No code = NR sels V = FKM sels (other sels on request) ttention! he comptiility of the sels nd pressure fluid hs to e tken into ccount! Electricl connection 2) K4 6) = Without plug-in connector Individul connection with component plug DIN EN No code 2) = Without hnd override N 2) = With hnd override N9 2) = With protected hnd override G24 2) = 24 V DC W20 2) = 20 V C 0/60 Hz No code = Without directionl vlve 6E 2) = With directionl vlve NS 6 No code = Lowest circultion pressure U 4) = See chrcteristic curves on pge 7 1) Only for vlve with threded connections 2) Only version DW..G.. ) H-key to Mteril No. R is included within the scope of supply 4) Version U is not suitle for cross-relief function! ) Hyphen only required for DW..G.. without stting detils regrding,,, nd U. 6) lug-in connectors must e ordered seprtely (see pge 6). ttention! When ordering spre crtridges for suplte mounting or threded connection housings NS nd 2 lwys order type D 20 K.-1/..! Design tested sfety vlves re only ville for type D 20 K.-1/..E! * RE 2 1/0.0 2/12 D(W) W6

3 Ordering detils for design tested pressure relief vlves type D..K../..E, series 1 Design tested to directive 97/2/EG (pressure component directive) NS Designtion Component identifiction D 20 K 1/ E ÜV.SV ,4.F.G.p Mx. permissile flow q Vmx in L/min Set response over pressure p in r 70 0 to to to to to djustment element hnd wheel = 1 (seled pressure djuster, unloding or djustments in the lower settle rnge is possile!) djustment element with seled protective cp = 2 (no djustment or unloding is possile) he pressure detils contined within the type code re to e entered y the customer e.g. = ressure djustments 0 r nd in r steps re possile. NR sels FKM sels Detils re completed y the fctory = No code = V Sfety guidelines for design tested sfety vlves type D..K../..E, series 1 to the pressure component directive DGRL 97/2/EG efore ordering design tested pressure relief vlve, checks hve to e crried out to ensure tht t the required response pressure p the mximum permissile flow q Vmx (= numericl vlue in the plce of the G within the component identifiction) of the sfety vlve is greter thn the mximum possile flow from the system. he pproprite regultions must e tken into ccount! In ccordnce to DGRL 97/2/EG the system pressure must not increse, due to the flow, y more thn % of the set response pressure (see component identifiction). he mximum permissile flow stted within the component identifiction must not e exceeded. he return lines from sfety vlves must vent in sfe mnnor. Fluid must not e le to gther in venting system (see the D informtion sheet). ppliction notes must e tken into ccount! he response vlue stted within the component identifiction is set in the mnufcturing plnt with flow of 2 L/min. he mximum permissile flow stted within the component identifiction is vlid for: ilot oil return externl (= in the order code) without ck pressure in the pilot oil return line, the permissile ck pressure in the return line (port ) < r he removl of the sel from sfety vlve invlidtes the DGRL pprovl Cvities (see pge 11): Drilling without port he requirements of the pressure component directive nd the D informtion sheet must e tken into ccount! D(W) W6 /12 RE 2 1/0.0

4 Symols ype D ype D ype D ype D ype DW ype DW ype DW ype DW Normlly closed Normlly closed Normlly closed Normlly closed Normlly open Normlly open Normlly open Normlly open Function, section ypes D nd DW vlves re pilot operted pressure relief vlves of crtridge design. hey re used for limiting (D) or limiting nd solenoid operted unloding (DW only with threded connections) of n operting pressure. he vlves siclly consists of the housing (1) nd pressure control vlve crtridge (2). he pressure present in port cts on the spool (). t the sme time pressure is pplied to poppet (6) vi orifice drillings (4 nd ). When the pressure port exceeds the force set on the spring (7), the poppet (6) opens ginst the spring (7). ressure fluid cn now flow from port vi the orifice drillings (4 und ) into the spring chmer (). From here the fluid is led internlly, with type D..-4/.., vi control pssges (9 nd ) or externlly, with type D..-4/..., vi control pssges (9 nd 11) to the tnk. Due to the lnced condition t the poppet () pressure fluid flows from port to port, while mintining the set operting pressure. pressure guge connection (12) llows the operting pressure to e monitored. he pressure relief vlve cn e unloded or switched over to nother pressure vlue (second pressure stge) vi port (1). ressure relief vlve type DW (only threded connections) In principle, the function of this vlve corresponds to tht of the vlve type D. Unloding of the min poppet is chieved y controlling the uilt-on directionl vlve ype D /...W6 RE 2 1/0.0 4/12 D(W) W6

5 echnicl dt (for pplictions outside these prmeters, plese consult us!) Generl Instlltion Optionl mient temperture rnge ype D.. C 0 to + 0 (NR sels) he minimum housing mteril strength ype DW..G.. C 1 to + 0 (FKM sels) 0 to + 0 (NR sels) 1 to + 0 (FKM sels) Housing mterils re to e so selected tht dequte sfety is ensured for ll conceivle operting pressures (e.g. with reference to the compressive strength, thred strength nd tightening torques). Weight NS 2 Suplte mounting kg hreded connections ype D.. kg ype DW.. kg Crtridge vlve (crtridge) kg 0. Directionl vlve technicl dt See ctlogue sheet RE 2 17 Hydrulic (mesured with HL 46, ϑ oil = 40 C ± C) Mx. operting pressure, orts, r 0 ort r 1 Mx. ck pressure: ort ype D.. r 20 ort (DW..G../..) or port (DW..G../..) r 2 for DC solenoid 160 for n C solenoid Settle pressure Min. r Dependent on q v, see chrcteristic curves on pge Mx. r Up to 0, Up to 0, Up to 200, Up to 1; (Up to 0 only version D) Mximum flow NS 2 Suplte mounting L/min hreded connections L/min 200 (G /4); 00 (G 1) ressure fluid Minerl oil (HL, HL) to DIN ) ; Fst io-degrdle pressure fluids to VDM 24 6 (lso see RE ); HEG (rpe seed oil) 1) ; HEG (polyglycole) 2) ; HEES (synthetic ester) 2) ; other sels on request ressure fluid temperture rnge C 0 to + 0 (NR sels) Vsicosity rnge mm 2 /s to 00 1 to + 0 (FKM sels) ISO code clenliness clss 1) Suitle for NR nd FKM sels 2) Only suitle for FKM sels Mximum permissile degree of contmintion of the pressure fluid is to ISO 4406 clss 20/1/1 ) ) he clenliness clss stted for the components must e dhered too in hydrulic systems. Effective filtrtion prevents fults from occurring nd t the sme time increses the component service life. For the selection of filters see ctlogue sheets RE 0 070, RE nd RE D(W) W6 /12 RE 2 1/0.0

6 Deviting technicl dt for design tested pressure relief vlves 1) Hydrulic Mximum ck pressure ort r 0 ort r Mximum flow See tles on pge ressure fluid Minerl oil (HL, HL) to DIN 1 24 nd DIN 1 2 ressure fluid temperture rnge C 20 to + 60 (for NR sels) 1 to + 60 (for FKM sels) Viscosity rnge mm 2 /s 12 to 20 1) For pplictions outside these prmeters, plese consult us! Generl guidelines he unloding function (directionl vlve function with DW) must not e used for sfety functions! With type DW...4/... the lowest settle pressure is set (circultion pressure) if the current fils or if there is cle rek. With type DW...4/... the pressure relief function is ctivted if the current flls or if there is cle rek. ny hydrulic ck pressure in port with n internl pilot oil drin (type D/DW../.. or port with n externl pilot oil drin (type D/DW../...) re dded 1:1 to the response pressure set t the pilot control of the vlve. Exmple: he vlve pressure setting resulting from the spring loding (os. 7 on pge 4) in the pilot control vlve/djustment unit p spring = 200 r Hydrulic ck pressure in port with internl pilot oil drin p hydrulic = 0 r => Response pressure = p spring + p hydrulic = 20 r Ordering detils: plug-in connectors to DIN EN nd ISO 4400 for component plug "K4" For further plug-in connectors see RE Vlve side Colour Without circuitry With indictor light V Mteril No. With rectifier V With indictor light nd Z-diode protective circuitry 24 V Grey R / lck R R90019 R90099 RE 2 1/0.0 6/12 D(W) W6

7 Chrcteristic curves (mesured with HL 46, ϑ oil = 40 C ± C) Input pressure in r Input pressure in reltion to the flow hese chrcteristic curves were mesured with externl pilot oil drin t zero pressure. With n internl pilot oil drin, the input pressure increses y the output pressure present in port Flow in L/min 1 NS 2 NS 2 Minimum settle pressure nd ypss pressure in reltion to the flow 1) Suplte mounting hreded connections nd crtridge vlve Min. settle pressure, ypss pressure in r Min. settle pressure, ypss pressure in r Flow in L/min 1 Stndrd version Version U Flow in L/min 1 Min. settle pressure, ypss pressure in r Flow in L/min 1 Min. settle pressure, ypss pressure in r Stndrd version Version U Flow in L/min ) he chrcteristic curves re vlid for n output pressure = zero over the entire flow rnge! 1 NS 2 NS 1 / NS 20 NS 20 D(W) W6 7/12 RE 2 1/0.0

8 Unit dimensions: suplte mounting (dimensions in mm) NS 7, 42, Ø G 1/4 41 G 1/ ; 16, 47, 12 22,1 1 1 Ø2 Ø x Ø , ,01/0mm R mx 4 9 Ø Required surfce finish of the mting piece 40 1 Nme plte 2 ort for remote control (optionl) ort for externl pilot oil drin 4 djustment element 1 djustment element 2 6 djustment element 7 djustment element 7 Locknut 22/F 9 Hexgon /F Hexgon 0/F ightening torque M = 0 Nm 11 Spce required to remove the key 12 Locting pin 1 Vlve fixing holes 14 ressure guge connection 1 Identicl sel rings for ports nd 16 Sel ring for port Supltes to ctlogue sheet RE nd vlve fixing screws must e ordered seprtely. Supltes G 4/01 (G /) 1) G 46/01 (G 1/2) 1) G 6/01 (G /4) 1) Vlve fixing screws M12 x 0 DIN , M = Nm 1) It is not permissile to use the stted supltes with design tested vlves! RE 2 1/0.0 /12 D(W) W6

9 Unit dimensions: suplte mounting (dimensions in mm) NS 2 69 Ø G 1/ , 4,6 2, 11,1 Ø , G 1/ ; 16, 66,7 1 Ø x Ø ,4 1, 97 9 Ø 0,01/0mm R mx 4 40 Required surfce finish of the mting piece 1 Nme plte 2 ort for remote control (optionl) ort for externl pilot oil drin 4 djustment element 1 djustment element 2 6 djustment element 7 djustment element 7 Locknut 22/F 9 Hexgon /F Hexgon 0/F ightening torque M = 0 Nm 11 Spce required to remove the key 12 Locting pin 1 Vlve fixing screws 14 ressure guge connection 1 Identicl sel rings for ports nd 16 Sel ring for port Supltes to ctlogue sheet RE nd vlve fixing screws must e ordered seprtely. Supltes G 40/01 (G /4) 1) G 409/01 (G 1) 1) Vlve fixing screws M16 x 0 DIN , M = Nm 1) It is not permissile to use the stted supltes with design tested vlves! D(W) W6 9/12 RE 2 1/0.0

10 Unit dimensions: threded connections (dimensions in mm) Vlve type D1 Ø D2 D..G G 1/2 4 D.1.G G /4 42 D.20.G G Ø9, (92) , 4 2, 201, 1 4, 19 g , g , (9) ØD2; 0, 66 D1 1 Nme plte 2 ort (G 1/4; 12) for remote control ort (G 1/4; 12 ) for externl pilot oil drin 4 djustment element 1 djustment element 2 6 djustment element D1 7 djustment element 7 ØD2; 0, Locknut 22/F 9 Hexgon /F Hexgon 0/F tightening torque M = 0 Nm 11 Spce required to remove the key 1 Vlve fixing holes 17 Set scres not required for version with internl pilot oil drin 1 Directionl vlve NS 6 (for dimensions see ctlogue sheet RE 2 17) 19 lug-in connector without circuitry 1) 20 lug-in connector with circuitry 1) = = 66 1 D1 ØD2; 0, Ø2 21 Dim. for solenoid without hnd override N 22 Dim. for solenoid with hnd override N 2 Dim. for hnd override N9 he hnd override cn only e operted up to tnk pressure of pprox. 0 r. void dmge to the hnd override pin ore! 24 Housing for version with uilt-on directionl vlve (DW..G..) 2 Spce required to remove the plug-in connector Ø Ø0 Ø 9 26 Vlve mounting surfce port is not drilled 27 Spce required to remove the coil 1 Ø Dim. for vlve with DC voltge 29 Dim. ( ) for vlve with n C voltge 1) Must e ordered seprtely, see pge 6 RE 2 1/0.0 /12 D(W) W6

11 Unit dimensions: crtridge vlve types D 20 K nd (dimensions in mm) 4 112, 4 Ø Ø Ø djustment element 1 djustment element 2 6 djustment element " 7 djustment element 7 Locknut 22/F 9 Hexgon /F Hexgon 0/F tightening torque M = 0 Nm 11 Spce required to remove the key 26 Sel ring 27 Sel ring 2) 2 ck-up ring 2) 29 Sel ring 0 2 ck-up rings 1 Drilling for port not provided for type D 20 K..-1/... 2 Drilling for port provided for type D 20 K.-1/.. nd type D 20 K.-1/.. Crtridge vlve mounting cvity Version nd design tested vlves D 20 K../...E (without port) , +1, 42 1, Ø2, 1 Ø4 0,0 0,0 Ø29 H M2 x 1, Ø26, Ø24 +0,1 20 Ø0Z Z 20 0,0 Z Ø22, H 2, 19 Ø12 2, +0,2 +0,2 Ø0 1) , , +0,2 Crtridge vlve mounting cvity Version (internl pilot oil supply nd pilot oil drin) ,2 4 +0,2 19 0,0 2, Z 20 Ø29 H M2 x 1, Ø21 H 2 20 Z Ø0 1) Ø0 1) Z 20 Ø21 H Ø0 1) Ø1, (Ø26,) Drilling, nd optionl out the circumference with type D 20 K.-1/... Drilling optionl out the circumference with type D 20 K.-1/... 4 Depth of fit Drilling Ø 2. only when required 6 Drilling, optionl 7 ort for design tested vlves type D 20 K../...E must not e drilled, is without function! 1) Mximum dimensions 2) Deleted with type D 20 K.-1/... Z = = R z R z 16 D(W) W6 11/12 RE 2 1/0.0

12 referred types (redily ville) ype D 20 K2-1/0 D 20 K2-1/0 D 20 K2-1/200 D 20 K2-1/1 Mteril No. R R R R D G2-4/0W6 D G2-4/0W6 D G2-4/200W6 D G2-4/1W6 R R R R D -2-4/0W6 D -2-4/0W6 D -2-4/200W6 D -2-4/1W6 D -2-4/0W6 R R R R R D 20 G2-4/0W6 D 20 G2-4/0W6 D 20 G2-4/200W6 D 20 G2-4/1W6 D 20 G2-4/0W6 D /0W6 D /200W6 D /1W6 D /1W6 D /0W6 R R R R R R R R R900 R90096 Further preferred types nd stndrd units cn e found in the ES (Stndrd rice list). osch Rexroth G Industril Hydrulics D-971 Lohr m Min Zum Eisengießer 1 D-9716 Lohr m Min elefon / 1-0 elefx / 1-2 elex emil documenttion@oschrexroth.de Internet osch Rexroth Limited Cromwell Rod, St Neots Cms, E19 2ES el: / Fx: / E-mil: info@oschrexroth.co.uk he dt specified ove only serves to descrie the product. No sttements concerning certin condition or suitility for certin ppliction cn e derived from our informtion. he detils stted do not relese you from the responsiility for crrying out your own ssessment nd verifiction. It must e rememered tht our products re suject to nturl process of wer nd geing. RE 2 1/0.0 12/12 D(W) W6