Proportional Directional Valve 4WRZE25E220-7X/6EG24N9ETK31/A1M - Bosch Rexroth R901289224
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An accumulator circuit can make pump pressure collapse, and a shared return line can lift it again. The 4WRZE25E220-7X/6EG24N9ETK31/A1M escapes both by taking pilot oil externally and draining it externally, at 220 l/min nominal flow and 350 bar operating pressure.
Benefits
- External pilot oil supply secures the pilot stage when pressure in port P drops.
- External pilot oil drain keeps surges from the return line away from the pilot stage.
- 220 l/min nominal flow and up to 870 l/min maximum flow.
- A ±10 V command value, on-board electronics, 24 VDC supply through a 7-pole connector (6 + PE) to EN 175201-804.
- Spool symbol E, ISO 4401-08-08-0-05 mounting pattern, NBR seals, 20.18 kg valve mass.
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 | 220 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 description | Connector 7-pole (6 + PE) according to EN 175201-804 |
| Spool symbol | Symbol E |
| 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 | 20.18 kg |
Application
Useful in plants with accumulator operation and several axes moving at once. Separate lines have to be planned for both pilot oil paths. After that the control loop stays predictable even under strongly changing load.
Manufacturer
Bosch Rexroth lists this valve under material number R901289224. Electrical connection is a 7-pole connector (6 + PE) to EN 175201-804. The manufacturer datasheet with characteristic curves, port pattern and installation dimensions is available in the download area of this page.
| Weight | 20.180000 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Hersteller-Nr | R901289224 |
| 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 |
