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This build of the 4WRZE25W8-220 draws pilot oil from an external source and returns it internally. At 220 l/min nominal flow, 350 bar and a 4 ... 20 mA command, pilot control stays fed even when working pressure is unloaded.
Proportional Directional Valve 4WRZE25W8-220-7X/6EG24TK31/F1D3M - Bosch Rexroth R901113991
BOSCH REXROTH
Original product
Net price (excl. VAT)
€5,001.72
Item
BRR-R901113991
Manufacturer no.
R901113991
Personal expert advice
Brand new
Specialist dealer since 2009
Original product
Worldwide shipping
Product data
Manufacturer no.R901113991
Country of originGermany
ConditionNew
Artikel
BRR-R901113991
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Plants that unload working pressure during the cycle lose actuating force at the main spool if pilot oil comes from inside. The 4WRZE25W8-220-7X/6EG24TK31/F1D3M therefore takes pilot oil externally and reliably meters 220 l/min nominal flow at 350 bar.
Benefits
- External pilot oil supply secures actuating force when pressure at P is unloaded during the cycle.
- Internal pilot oil return saves an additional line to tank.
- The integrated pressure reducing valve limits pilot pressure independently of system pressure.
- Spool symbol W8 at 220 l/min nominal flow, up to 870 l/min maximum flow.
- A 4 ... 20 mA command and 24 VDC supply through a 7-pole connector (6 + PE) to EN 175201-804.
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 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 | 20.58 kg |
Applications
Suited to power units with variable displacement pumps, accumulator circuits and machines running staged pressures. Three switching positions across four ports cover both travel directions plus centre. The valve weighs 20.58 kg and meets UKCA requirements.
Manufacturer
Bosch Rexroth, material number R901113991. Two documents are on file, and the data sheet holds characteristic curves, limit values and installation notes.
| Hersteller-Nr | R901113991 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Country of Manufacture | Germany |
| Weight | 20.580000 |
| 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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