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Proportional Directional Valve 4WRZ25W8-325-7X/6EG24N9EK4/V - Bosch Rexroth R900943858
On axes at 325 l/min nominal flow served by a tank line with back pressure, the separate pilot drain is what counts. The 4WRZ25W8-325-7X takes pilot oil internally, drains it externally, weighing 19.9 kg.
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Description
Large nominal stages plus long collecting tank lines often meet in press manifolds. The 4WRZ25W8-325-7X/6EG24N9EK4/V answers that with internal pilot feed as well as external drain, at 325 l/min nominal flow, weighing 19.9 kg.
Benefits
- Internal pilot oil feed, external pilot oil drain for duty on tank lines carrying back pressure
- Nominal flow 325 l/min, maximum flow 870 l/min
- Maximum operating pressure 350 bar, spool symbol W8
- 4 ports plus 3 switching positions to ISO 4401-08-08-0-05
- External electronics, 24 VDC, 7-pole connector (6 + PE) to EN 175201-804
- FKM seals, concealed auxiliary actuation, weight 19.9 kg
Application
The valve works on main press axes as well as on test rigs with several actuators draining in parallel. Its own drain port routes pilot oil past the collecting line straight to tank. HL hydraulic fluid, size 25.
Manufacturer
Bosch Rexroth, material number R900943858, type designation 4WRZ25W8-325-7X/6EG24N9EK4/V. Further values are given in the data sheet Proportional directional valve, pilot-operated (RE 29115) and Hydraulic valves and hydro- (RE 07600-B).
Technical data
| Connection diagram | ISO 4401-08-08-0-05 |
|---|---|
| Max. flow | 870 l/min |
| Product family | 4WRZ(E) |
| Type of connection | Subplate mounting |
| Nominal flow | 325 l/min |
| Supply voltage | 24 VDC |
| Number of switching positions | 3 |
| Hydraulic fluid | HL |
| Number of ports | 4 |
| Electrical connection description | Connector, 7-pole (6 + PE) according to EN 175201-804 |
| Spool symbol | Symbol W8 |
| Operating pressure, max. | 350 bar |
| Size | 25 |
| Seals | FKM |
| Electrical connector | Connector, 3-pole (2 + PE) |
| Type of actuation | Electrical with external electronics |
| Weight | 19.9 kg |
| Manufacturer | Bosch Rexroth |
| Hersteller-Nr | R900943858 |
| GPSR Herstellerdaten | Bosch Rexroth AG, Zum Eisengießer 1, DE-97816 Lohr am Main, www.boschrexroth.com |
| Artikelzustand | New |
| Artikel-Authentizität | Original product |
| Country of Manufacture | Germany |
Downloads
Datasheet
- Datasheet (PDF)
- Directional spool valves, direct operated (RE 23178) EN
- Directional spool valves, pilot-operated (RE 24751) EN
- Proportional directional valve, pilot-operated (RE 29115) EN
- Proportional-Wegeventil, vorgesteuert, ohne elektrische Wegrückführung, mit oder ohne integrierter (RD 29115) DE
- Wege-Schieberventile, direktgesteuert, mit Magnetbetätigung DE
- Wege-Schieberventile, vorgesteuert, mit hydraulischer oder elektro-hydraulischer Betätigung (RD 24751) DE
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