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In standby the main pump is at rest, yet the axis should still be able to travel. The 4WRZ25W6-325-7X/6EG24N9K4/V stays able to shift thanks to its external pilot circuit and meters 325 l/min nominal flow in service, at 19.88 kg.
Proportional Directional Valve 4WRZ25W6-325-7X/6EG24N9K4/V - Bosch Rexroth R900944187
BOSCH REXROTH
Original product
Net price (excl. VAT)
€4,170.19
Item
BRR-R900944187
Manufacturer no.
R900944187
Personal expert advice
Brand new
Specialist dealer since 2009
Original product
Worldwide shipping
Product data
Manufacturer no.R900944187
Country of originGermany
ConditionNew
Artikel
BRR-R900944187
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When the main pump rests during standby, an internally fed pilot stage lacks pressure. The 4WRZ25W6-325-7X/6EG24N9K4/V is built with an external feed and an external drain and therefore stays commandable.
Benefits
- External pilot feed and external drain, the valve can shift even without main pressure.
- 325 l/min nominal flow within a maximum flow of 870 l/min.
- Spool symbol W6, 3 switching positions in size 25, ISO 4401-08-08-0-05 interface.
- 19.88 kg weight, FKM seals, 350 bar maximum operating pressure.
- Concealed auxiliary actuation, control at 24 VDC through external electronics.
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 W6 |
| Operating pressure, max. | 350 bar |
| Size | 25 |
| Seals | FKM |
| Electrical connector | Connector, 3-pole (2 + PE) |
| Type of actuation | Electrical with external electronics |
| Weight | 19.88 kg |
Applications
The valve serves plants with long standby phases, such as tool changers and clamping stations. A small pilot power unit holds pilot pressure while the main pump stays switched off. An internal pressure reducing valve is not included.
Manufacturer
Bosch Rexroth, material number R900944187. Characteristic curves, step response and installation dimensions appear in data sheet RE 29115, supplemented by catalogue RE 07600-B.
| Hersteller-Nr | R900944187 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Country of Manufacture | Germany |
| Weight | 19.880000 |
| GPSR Herstellerdaten | Bosch Rexroth AG, Zum Eisengießer 1, DE-97816 Lohr am Main, www.boschrexroth.com |
| Artikel-Authentizität | Original product |
| Artikelzustand | New |
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