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A dedicated pilot circuit keeps the pilot stage stable even while the main circuit is unloaded. This externally piloted version of the 4WRZE25 works with spool symbol W6, 325 l/min nominal flow and an operating pressure of up to 350 bar.
Proportional Directional Valve 4WRZE25W6-325-7X/6EG24K31/A1D3M - Bosch Rexroth R900705878
BOSCH REXROTH
Original product
Net price (excl. VAT)
€4,736.28
Item
BRR-R900705878
Manufacturer no.
R900705878
Personal expert advice
Brand new
Specialist dealer since 2009
Original product
Worldwide shipping
Product data
Manufacturer no.R900705878
Country of originGermany
Customs tariff number84812010
ConditionNew
Artikel
BRR-R900705878
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Externally piloted and fitted with symbol W6, the 4WRZE25W6-325-7X/6EG24K31/A1D3M covers applications in which the main circuit stays without pressure at times. Nominal flow is 325 l/min, and up to 870 l/min are possible through the valve.
Benefits
- External pilot oil supply and external return, pilot pressure independent of the main circuit.
- Spool symbol W6 for axes that ramp out of centre position in both directions.
- Nominal flow 325 l/min at operating pressures up to 350 bar.
- Size 25 mounting pattern ISO 4401-08-08-0-05, three switching positions, four ports.
- On-board electronics for the analog ±10 V command value, 24 VDC supply.
- 7-pole connector (6 + PE) to EN 175201-804, NBR seals, mass 20.5 kg.
Technical data
| Product family | 4WRZ(E) |
| Size | 25 |
| Connection diagram | ISO 4401-08-08-0-05 |
| Type of connection | Subplate mounting |
| Nominal flow | 325 l/min |
| Max. flow | 870 l/min |
| Operating pressure, max. | 350 bar |
| Number of ports | 4 |
| Number of switching positions | 3 |
| Spool symbol | Symbol W6 |
| Type of actuation | Electrical with on-board electronics |
| Connectivity | Analog, command value ±10 V |
| Supply voltage | 24 VDC |
| Electrical connection description | Connector 7-pole (6 + PE) according to EN 175201-804 |
| Electrical connector | Connector, 7-pole (6 + PE) |
| Hydraulic fluid | HL |
| Seals | NBR |
| Conformity | UKCA |
| Conformity description | UKCA - Electromagnetic compatibility (EMC) SI2016/1091 |
| Weight | 20.5 kg |
Applications
Typical duties are presses and test rigs with relief phases as well as systems that run their own pilot pump. The external circuit keeps the valve ready to control when the main circuit carries no pressure. Pilot supply and return have to be connected on site.
Manufacturer
Bosch Rexroth, material number R900705878. Pilot oil demand and characteristic curves are in the data sheet Proportional directional valve, pilot-operated (RE 29115).
| Weight | 20.500000 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Hersteller-Nr | R900705878 |
| Zolltarifnummer | 84812010 |
| 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 |
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