Directional spool valves, direct operated, with solenoid actuation. Type WE VP1. Features. Contents. RE VP1 Edition: Replaces:

Transcription

1 Directionl spool vlves, direct operted, with solenoid ctution ype WE V1 RE V1 Edition: Replces: Size 6 Component series 5X Mximum operting pressure 35 r Mximum flow 7 l/min H813 Fetures 4/3-, 4/2- or 3/2-wy version For intended use in potentilly explosive tmosphere orting pttern ccording to ISO Wet-pin DC or C solenoids Electricl connection with individul connection or piping connection (N 1/2 ) With mnul override Devices For potentilly explosive res Informtion on explosion protection: re of ppliction ccording to NEC5 nd CEC nnex J: Clss I, Division 1, Groups, C, D 4 NEC52 nd CEC Section 18: Clss II/III, Division 1, Groups E, F, G 4 Contents Fetures 1 Ordering code 2 Symols 3 Function, section 4 echnicl dt 5, 6 Chrcteristic curves 7 erformnce limits 8 Dimensions 9 Instlltion conditions 1 Electricl connection 11 Over-current fuse nd switch-off voltge peks 12 Further informtion 12 RE V1, edition: 217-6, osch Rexroth G

2 2/12 WE V1 Directionl spool vlve Ordering code WE 6 5X / N V1 Z2 / 1 3 min ports 3 4 min ports 4 2 Directionl vlve WE 3 Size Symols e.g. E, G, J, D, Y, etc.; possile design see pge 3 5 Component series 5 59 (5 59: unchnged instlltion nd connection dimensions) 5X 6 With spring return no code Without spring return O Without spring return with detent OF 7 High-power solenoid (wet-pin) Voltge 8 Direct voltge 24 V G24 lternting voltge 12 V W12R 9 With mnul override N Explosion protection 1 NEC5, NEC52, CEC nnex J nd CEC Section 18 V1 For detils, see informtion on explosion protection, pge 6 Electricl connection 11 Individul connection Solenoid with terminl ox nd cle glnd For detils of electricl connections, see pge 11 Z2 12 Without throttle insert no code hrottle Ø.8 mm 8 hrottle Ø 1. mm 1 hrottle Ø 1.2 mm 12 Use with flows which exceed the performnce limit of the vlve (see pge 4) Sel mteril 13 NR sels no code FKM sels V Oserve comptiility of sels with hydrulic fluid used. Notice: he mnul override cnnot e llocted sfety function nd my only e used up to tnk pressure of 5 r. osch Rexroth G, RE V1, edition: 217-6

3 Directionl spool vlve WE V1 3/12 Symols = /O.. = /OF.. =. 1) =. = = E 1) = C = F = D = G = H = J = = L = Y = M = = Q = R 1) Exmple: Symol E with spool position "" ordering code..e.. = = U Notices: Representtion ccording to DIN ISO Hydrulic interim positions re shown y dshes. = V = W RE V1, edition: 217-6, osch Rexroth G

4 4/12 WE V1 Directionl spool vlve Function, section Directionl vlves of type WE re solenoid-ctuted directionl spool vlves. hey control strt, stop nd direction of flow. he directionl vlves siclly consist of housing (1), one or two solenoids (2), control spool (3), nd one or two return springs (4). In the de-energized condition, the control spool (3) is held in the centrl position or in the initil position y the return springs (4) (except for impulse spools). he control spool (3) is ctuted y wet-pin solenoids in hydrulic fluid (2). o ensure proper functioning, mke sure tht the pressure chmer of the solenoid is filled with hydrulic fluid. he force of solenoid (2) cts vi plunger (5) on control spool (3) nd pushes the ltter from its rest position to the required end position. his enles the necessry direction of flow from nd or nd. fter de-excittion of the solenoid (2), the return spring (4) pushes the control spool (3) ck to its rest position. mnul override (6) llows control spool (3) to e moved without solenoid energiztion. Without spring return "O" (only possile with symol D) his version is directionl vlve with two spool positions nd two solenoids without detent. In the de-energized condition, there is no defined spool position. Without spring return, with detent "OF" (impulse spool, only possile with symol D) his version is directionl vlve with two spool positions, two solenoids nd one detent. It lterntely locks the two spool positions nd the solenoid therefore does not need to e permnently energized. Notice: For design resons, internl lekge, which my increse over the life cycle, is inherent to the vlves ype 4WE 6 E5X/...NV1Z2 6 Sel ring hrottle insert "..." he use of throttle insert is required when, due to previling operting conditions, flows occur during the switching processes which exceed the performnce limit of the vlve. osch Rexroth G, RE V1, edition: 217-6

5 Directionl spool vlve WE V1 5/12 echnicl dt (For pplictions outside these prmeters, plese consult us!) generl Instlltion position ny mient temperture rnge C 2 +6 Storge temperture rnge C Mximum storge time Yers 1 Weight kg 3.5 (with 1 solenoid); 5.8 (with 2 solenoids) Surfce protection Vlve ody glvnized Solenoid glvnized MF d vlue ccording to EN ISO Yers 15 (for further detils see dt sheet 812) hydrulic Mximum operting pressure ort,, r 35 ort r 21 With symols nd, port must e used s lekge oil connection if the operting pressure exceeds the dmissile tnk pressure. Mximum flow l/min 7 Hydrulic fluid See tle elow Hydrulic fluid temperture rnge C (NR sels) (FKM sels) Viscosity rnge mm 2 /s Mximum dmissile degree of contmintion of the hydrulic fluid Clss 2/18/15 1) clenliness clss ccording to ISO 446 (c) Mximum surfce temperture C See informtion on explosion protection, pge 6 Hydrulic fluid Clssifiction Suitle Stndrds Dt sheet seling mterils Minerl oils HL, HL, HLD NR, FKM DIN io-degrdle Insolule in wter HEG FKM ISO 1538 HEES FKM 9221 Solule in wter HEG FKM ISO 1538 Flme-resistnt Wter-free HFDU, HFDR FKM ISO Contining wter HFC (Fuchs Hydrotherm 46M, NR etrofer Ultr Sfe 62) 2) ISO Importnt notices on hydrulic fluids: Flme-resistnt contining wter: For further informtion nd dt on the use of other hydrulic Mximum pressure differentil per control edge 5 r fluids, plese refer to the dt sheets ove or contct us. ressure pre-loding t the tnk port >2% of the pressure here my e limittions regrding the technicl vlve dt differentil, otherwise incresed cvittion erosion (temperture, pressure rnge, life cycle, mintennce intervls, Life cycle s compred to opertion with minerl oil HL, HL etc.). Ignition temperture > 18 C 3 1% io-degrdle nd flme-resistnt: If these hydrulic fluids re used, smll mounts of dissolved zinc my get into the hydrulic system. (7 mg zinc per pole tue). 1) he clenliness clsses specified for the components must e dhered to in hydrulic systems. Effective filtrtion prevents fults nd simultneously increses the life cycle of the components. For the selection of the filters, see 2) Mximum mient temperture for individul opertion 5 C nd 5% duty cycle, for mnifold opertion 4 C nd 5% duty cycle. RE V1, edition: 217-6, osch Rexroth G

6 6/12 WE V1 Directionl spool vlve echnicl dt (For pplictions outside these prmeters, plese consult us!) electricl Voltge type Direct voltge lternting voltge 5/6 Hz ville voltges V Voltge tolernce (nominl voltge) % ±1 dmissile residul ripple % < 5 Duty cycle/operting mode ccording to VDE 58 S1 (continuous opertion) Switching time ccording to ISO 643 2) ON ms OFF ms Mximum switching frequency 1/h 36 Nominl power t mient temperture 2 C W 2 Mximum power with 1.1 x nominl voltge nd n mient temperture of 2 C W 2.6 rotection clss ccording to NEM 25 NEM type 4X (with correctly instlled electricl connection) DIN EN 6529 I 65 (with correctly instlled electricl connection) Informtion on explosion protection re of ppliction NEC5 nd CEC nnex J Clss I, Division 1, Groups, C, D 4 ccording to NEC52 nd CEC Section 18 Clss II/III, Division 1, Groups E, F, G 4 Mximum surfce temperture 3) C 13 emperture clss 4 ype of protection vlve solenoid X (explosion-proof); DI (dust ignition protection) FM certificte US Cnd 35577C Specil ppliction conditions for sfe ppliction he connection line requires minimum temperture rting of 15 C. When selecting the connection line, plese oserve the requirements regrding the temperture rting nd void contct of the connection line with the solenoid surfce. In cse of vlves with two solenoids, mximlly one of the solenoids my e energized t time. In cse of nk ssemly, the mximum mient temperture my not exceed 5 C. Ensure unostructed het dissiption t the solenoid. he solenoid my not e covered or exposed to direct sunlight. For use of the vlve in the intended explosion protection tmosphere, conduit sel hs to e instlled in the pipeline within 45 mm (downstrem of the vlve solenoid). mient temperture rnge C ) he switching times were determined t hydrulic fluid temperture of 4 C nd viscosity of 46 cst. Deviting hydrulic fluid tempertures cn result in different switching times! Switching times chnge dependent on operting time nd ppliction conditions. 3) Surfce temperture > 5 C, provide contct protection osch Rexroth G, RE V1, edition: 217-6

7 Directionl spool vlve WE V1 7/12 Chrcteristic curves (mesured with HL46, ϑ oil = 4 ±5 C) p-q V chrcteristic curves ressure differentil in r Symol Direction of flow D, Y E J G C H Other symols upon request Flow in l/min RE V1, edition: 217-6, osch Rexroth G

8 8/12 WE V1 Directionl spool vlve erformnce limits (mesured with HL46, ϑ Oil = 4 ±5 C) Notice: he specified performnce limits re vlid for use with two directions of flow (e.g. from nd simultneous return flow from to ). Due to the flow forces cting within the vlves, the dmissile performnce limit my e considerly lower with only one direction of flow (e.g. from while port is locked)! In such cses of use, plese consult us! he performnce limits were determined when the solenoids were t operting temperture, t 1% undervoltge nd without tnk preloding. Direct voltge "G24 Operting pressure in r Chrcteristic curve Symol 1 J 2 G 3 E 4 D 5 C 6 H 7 Y 8 D/OF Flow in l/min C voltge "W12R Operting pressure in r Chrcteristic curve Symol 1 J 2 G 3 E 4 D 5 C 6 H 7 Y 8 D/OF Flow in l/min osch Rexroth G, RE V1, edition: 217-6

9 Directionl spool vlve WE V1 9/12 Dimensions (dimensions in mm) Ø9,4 Ø5,3 6 23, , F1 F2 48 F4 F3,1/1 Rzmx 4 Required surfce qulity of the vlve contct surfce 1 Solenoid 2 erminl ox 3 Mnul override "N" 4 Identicl sel rings for ports,,, 5 Cp for vlves with one solenoid 6 Nme plte 7 orting pttern ccording to ISO (with locting hole for locking pin ISO x8-St, mteril no. R95694, seprte order) 8 iping connection N 1/2 Vlve mounting screws (seprte order) For resons of stility, use exclusively the following vlve mounting screws: 4 hexgon socket hed cp screws ISO M5 x CM-Fe-ZnNi-5-Cn--H- (friction coefficient µ totl =.9.14); mteril no. R Supltes (seprte order) with porting pttern ccording to ISO , see dt sheet 451. RE V1, edition: 217-6, osch Rexroth G

10 1/12 WE V1 Directionl spool vlve Instlltion conditions (dimensions in mm) Suplte dimensions herml conductivity of the suplte Minimum distnce etween the longitudinl vlve xes Individul ssemly Minimum dimensions Length 64, width 58, height W/mK (EN-GJS-5-7) see schemtic digrm elow nk ssemly Minimum cross-section Height 6, width 85 Schemtic digrm Individul ssemly nk ssemly 85 Height Notice: Oserve the "Specil ppliction conditions for sfe ppliction" on pge 6. osch Rexroth G, RE V1, edition: 217-6

11 Directionl spool vlve WE V1 11/12 Electricl connection he FM-tested vlve solenoid of the vlve is equipped with connection comprtment nd n N connection thred (N 1/2") for pipelines. he connection is polrity-independent. Notice: When estlishing the electricl connection, the protective grounding conductor (E ) hs to e connected properly. 1 2 Connectle operting voltge conductors nd protective grounding conductors Function Mximum connectle line cross-section erminl re, rted connection (min..13 mm²) 2.5 mm² Conductor connection cross-section WG (min. WG 26) WG 14 Single-wire, min. H5(7) V-U.13 mm² 2.5 mm² Finely strnded, min. H5(7) V-K.13 mm² 2.5 mm² Wire end ferrule with collr DIN /4 (min..25 mm²) 1.5 mm² Wire end ferrule ccording to DIN /1 (min..25 mm²) 1.5 mm² Connection line Line type non-rmored cles nd lines (outer sheth seling) emperture rnge C -2 > +11 Circuit digrm Direct voltge C voltge +(-) +(-) RE V1, edition: 217-6, osch Rexroth G

12 12/12 WE V1 Directionl spool vlve Over-current fuse nd switch-off voltge peks Voltge dt in the vlve type code Nominl voltge vlve solenoid Rted current vlve solenoid Recommended pre-fuse chrcteristic: medium time-lg ccording to DIN Mximum voltge vlue when switching off Rted current G24 24 V DC.899 DC 1 m -36 V 1.65 W12R 12 V C.221 C 2 m.384 Interference protection circuit Suppressor diode i-directionl ridge rectifier 1 V Notice: Corresponding to the rted current, fuse ccording to DIN nd EN / IEC 6127 hs to e connected upstrem of every vlve solenoid (mx. 3 x I G ). he shut-off threshold of the fuse hs to mtch the prospective short-circuit current of the supply source. he prospective short-circuit current of the supply source my mount to mximum of 15. his fuse my only e instlled outside the potentilly explosive re or must e of n explosion-proof design. When inductivities re switched off, voltge peks result which my cuse fults in the connected control electronics. he voltge pek must e dmped y suitle externl circuitry. We recommend circuitry with suppressor diode with limittion voltge of pprox. 5 V. Further informtion Supltes Dt sheet 451 Use of non-electricl hydrulic components in n explosive environment (EX) Dt sheet 711 Hydrulic fluids on minerl oil sis Dt sheet 922 Environmentlly comptile hydrulic fluids Dt sheet 9221 Flme-resistnt hydrulic fluids - contining wter (HFE, HFS, HF, HFC) Dt sheet 9223 Directionl spool vlves, direct operted, with solenoid ctution Selection of the filters Informtion on ville spre prts Operting instructions V osch Rexroth G Industril Hydrulics Zum Eisengießer Lohr m Min, Germny hone +49 () / my.support@oschrexroth.de his document, s well s the dt, specifictions nd other informtion set forth in it, re the exclusive property of osch Rexroth G. It my not e reproduced or given to third prties without its consent. he dt specified ove only serve to descrie the product. No sttements concerning certin condition or suitility for certin ppliction cn e derived from our informtion. he informtion given does not relese the user from the oligtion of own judgment nd verifiction. It must e rememered tht our products re suject to nturl process of wer nd ging. osch Rexroth G, RE V1, edition: 217-6