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When back pressure stands in the tank line: this version routes pilot oil through dedicated X and Y lines and controls 325 l/min at up to 350 bar. Spool symbol W8, command 4...20 mA, on-board electronics on 24 VDC.
Proportional Directional Valve 4WRZE25W8-325-7X/6EG24N9K31/F1M - Bosch Rexroth R901055706
BOSCH REXROTH
Original product
Net price (excl. VAT)
€4,858.59
Item
BRR-R901055706
Manufacturer no.
R901055706
Personal expert advice
Brand new
Specialist dealer since 2009
Original product
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Product data
Manufacturer no.R901055706
Country of originGermany
ConditionNew
Artikel
BRR-R901055706
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Back pressure in the tank line shifts the null position of a pilot-operated valve. This version therefore has both its own supply X and its own drain Y, and delivers 325 l/min from a 4...20 mA current command.
Benefits
- A dedicated pilot drain Y keeps the pilot stage clear of back pressure in the tank line.
- A dedicated supply X makes control pressure available independently of the working pressure.
- Nominal flow of 325 l/min with spool symbol W8, maximum flow 870 l/min.
- Operating pressure up to 350 bar, three switching positions, four ports, NBR seals.
- Command 4...20 mA into the on-board electronics, 24 VDC, mass 20.3 kg.
Technical data
| Conformity description | 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 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. | 350 bar |
| Size | 25 |
| Seals | NBR |
| Electrical connector | Connector, 7-pole (6 + PE) |
| Type of actuation | Electrical with on-board electronics |
| Weight | 20.3 kg |
Applications
The layout pays off wherever several valves work into a shared tank line and build back pressure there, for example in large manifold assemblies on press lines. The Y line is routed to tank without pressure. Interface pattern ISO 4401-08-08-0-05 corresponds to size 25.
Manufacturer
Bosch Rexroth builds this valve under material number R901055706. Quote that number when ordering and keep it in the spare parts list of the machine. Characteristic curves, installation dimensions and connection diagrams are in data sheet RE 29115 and RE 07600-B.
| Hersteller-Nr | R901055706 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Country of Manufacture | Germany |
| Weight | 20.300000 |
| 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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