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When both pilot pressure and pilot return come from outside, the valve stays independent of the tank pressure in the working circuit. This version of the 4WRZE25 sets 325 l/min nominal flow at 350 bar and follows a ±10 V voltage command. It weighs 20.1 kg.
Proportional Directional Valve 4WRZE25W6-325-7X/6EG24N9K31/A1M - Bosch Rexroth R900970338
BOSCH REXROTH
Original product
Net price (excl. VAT)
€4,131.33
Item
BRR-R900970338
Manufacturer no.
R900970338
Personal expert advice
Brand new
Specialist dealer since 2009
Original product
Worldwide shipping
Product data
Manufacturer no.R900970338
Country of originGermany
ConditionNew
Artikel
BRR-R900970338
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High back pressure in the tank line shifts the null position of an internally drained pilot stage. This variant avoids that, because pilot oil comes from outside and is also returned externally, at 325 l/min nominal flow and 350 bar operating pressure.
Benefits
- Fully external pilot routing decouples the pilot stage from tank back pressure in the working circuit.
- 325 l/min nominal flow, up to 870 l/min maximum flow.
- ±10 V voltage command processed by the electronics directly on the valve.
- 350 bar operating pressure, NBR seals for HL hydraulic fluid.
- 20.1 kg on the ISO 4401-08-08-0-05 interface.
Technical data
| Conformity, evidence | UKCA - Electromagnetic compatibility (EMC) SI2016/1091 |
| 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 |
| Conformity | UKCA |
| Supply voltage | 24 VDC |
| Connectivity | Analog, command value ±10 V |
| Number of switching positions | 3 |
| Hydraulic fluid | HL |
| Number of ports | 4 |
| Electrical connection | Connector 7-pole (6 + PE) according to EN 175201-804 |
| Spool symbol | Symbol W6 |
| Operating pressure, max. | 350 bar |
| Size | 25 |
| Seals | NBR |
| Electrical connector | Connector, 7-pole (6 + PE) |
| Type of actuation | Electrical with on-board electronics |
| Weight | 20.1 kg |
Applications
The version makes sense on systems with long shared return lines or with return filters that build noticeable back pressure. Foundry presses, hydraulic stations with several consumers and test fields belong to this group. UKCA conformity with evidence for electromagnetic compatibility is documented.
Manufacturer
Genuine Bosch Rexroth part, material number R900970338. Characteristic curves and installation dimensions are given in data sheet RE 29115 and RE 07600-B.
| Hersteller-Nr | R900970338 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Country of Manufacture | Germany |
| Weight | 20.100000 |
| GPSR Herstellerdaten | A1-ESD equipment GmbH. Keldersstr. 15, DE-42697 Solingen, www.esd.equipment |
| Artikel-Authentizität | Original product |
| Artikelzustand | New |
| Position sensing | No |
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