Proportional Directional Valve 4WRZE25W8-325-7X/6EG24N9EK31/F1V - Bosch Rexroth R900247478
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Retrofitting a press with a current-controlled axis calls for a directional valve that accepts a 4 to 20 mA command signal directly. The 4WRZE25W8-325-7X/6EG24N9EK31/F1V delivers 325 l/min nominal flow at 350 bar operating pressure and weighs 20.1 kg.
Advantages
- 325 l/min nominal flow at 350 bar operating pressure, maximum flow 870 l/min.
- Analog command value input 4 to 20 mA, matching current outputs of existing controllers.
- Internal pilot oil supply with external pilot oil return, only one extra line to connect.
- Concealed auxiliary actuation allows a functional check without an electrical signal.
- 20.1 kg weight on connection diagram ISO 4401-08-08-0-05, FKM seals for an extended media range.
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 to 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 | FKM |
| Electrical connector | Connector, 7-pole (6 + PE) |
| Type of actuation | Electrical with on-board electronics |
| Weight | 20.1 kg |
Applications
The valve controls oil flow direction according to the hydraulic symbol in systems with current-based command signals, such as presses or injection molding machines with existing 4 to 20 mA output cards. The concealed auxiliary actuation allows a functional check at commissioning without a signal from the controller. Without an integrated pressure reducing valve, it suits applications that do not need separate pilot pressure reduction.
Manufacturer
Bosch Rexroth, material number R900247478. Datasheets: Proportional directional valve, pilot-operated (RE 29115) and Hydraulic valves and hydro- (RE 07600-B).
| Hersteller-Nr | R900247478 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Country of Manufacture | Germany |
| Weight | 20.100000 |
| Zolltarifnummer | 84812010 |
| GPSR Herstellerdaten | A1-ESD equipment GmbH. Keldersstr. 15, DE-42697 Solingen, www.esd.equipment |
| Artikel-Authentizität | Original product |
| Artikelzustand | New |
| Position sensing | No |
