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Where a separate pilot circuit exists, it feeds the pilot stage independently of the working pressure. This 4WRZE25 with spool symbol E takes pilot oil externally and returns it externally, at 220 l/min nominal flow and 350 bar. The command value is transferred as a 4...20 mA current.
Proportional Directional Valve 4WRZE25E220-7X/6EG24N9K31/F1M - Bosch Rexroth R901110477
BOSCH REXROTH
Original product
Net price (excl. VAT)
€4,593.14
Item
BRR-R901110477
Manufacturer no.
R901110477
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Brand new
Specialist dealer since 2009
Original product
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Product data
Manufacturer no.R901110477
Country of originGermany
ConditionNew
Artikel
BRR-R901110477
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A separate pilot circuit keeps the pilot stage independent of whatever the working pressure is doing. That is what this version is built for: pilot oil comes from outside and returns externally, while the size 25 valve controls 220 l/min nominal flow at up to 350 bar.
Benefits
- External pilot supply holds the pilot pressure steady even when working pressure collapses during a cycle.
- External pilot return decouples the pilot stage from back pressure in the tank line.
- 220 l/min nominal flow at 350 bar, with 870 l/min available as maximum flow.
- 4...20 mA command keeps the signal path undistorted over long cable runs.
- On-board electronics and a 7-pole connector (6 + PE) to EN 175201-804 keep the wiring simple.
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 | 220 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 | 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 | 20.24 kg |
Applications
The version is used in plants with a central pilot supply, for example in rolling mills, press lines and large test benches. Separate filtration of the pilot circuit keeps the pilot stage clean even when the working circuit is heavily loaded. The valve weighs 20.24 kg.
Manufacturer
This product comes from Bosch Rexroth and carries material number R901110477. Further data on curves and installation is provided by data sheet RE 29115 and RE 07600-B.
| Hersteller-Nr | R901110477 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Country of Manufacture | Germany |
| Weight | 20.240000 |
| 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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