Proportional Directional Valve 4WRZE10W8-85-7X/6EG24N9K31/F1M - Bosch Rexroth R900741766
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Wind energy and offshore hydraulics deliberately separate signal paths from pilot oil paths because service windows are rare. The 4WRZE10W8-85-7X/6EG24N9K31/F1M combines external pilot oil supply and external return with a 4...20 mA current command and regulates 85 l/min nominal flow through spool symbol W8.
Benefits
- External pilot oil supply and external return, cleanly separable from the main circuit.
- Current command 4...20 mA, a broken cable shows up as zero current.
- Spool symbol W8 with 85 l/min nominal flow, maximum flow 170 l/min.
- Version without pressure reducing valve, concealed auxiliary actuation on the pilot valve.
- Operating pressure up to 315 bar, size 10, weight 7.99 kg.
Technical data
| Conformity description | UKCA - Electromagnetic compatibility (EMC) SI2016/1091 |
| Connection diagram | ISO 4401-05-05-0-05 |
| Max. flow | 170 l/min |
| Product family | 4WRZ(E) |
| Type of connection | Subplate mounting |
| Nominal flow | 85 l/min |
| Conformity | UKCA |
| Supply voltage | 24 VDC |
| Connectivity | Analog, command value 4...20 mA |
| 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. | 315 bar |
| Size | 10 |
| Seals | NBR |
| Electrical connector | Connector, 7-pole (6 + PE) |
| Type of actuation | Electrical with on-board electronics |
| Weight | 7.99 kg |
Applications
Pitch and brake hydraulics in wind turbines, offshore winches and cargo handling gear run for long periods without intervention. The separate pilot paths allow the pilot circuit to be filtered on its own. Connection diagram ISO 4401-05-05-0-05 keeps a valve change simple during service.
Manufacturer
The Bosch Rexroth material number is R900741766. Datasheet RE 29115 documents frequency response, pilot oil demand and port dimensions of 4WRZE10W8-85-7X/6EG24N9K31/F1M, RE 07600-B names the approved fluids.
| Hersteller-Nr | R900741766 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Country of Manufacture | Germany |
| Weight | 7.981000 |
| Zolltarifnummer | 84812010 |
| GPSR Herstellerdaten | Bosch Rexroth AG, Zum Eisengießer 1, DE-97816 Lohr am Main, www.boschrexroth.com |
| Artikel-Authentizität | Original product |
| Artikelzustand | New |
