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Here both the pilot oil supply and the pilot oil return run externally. The pilot stage therefore depends on neither working pressure nor tank pressure, which is decisive in accumulator operation. Nominal flow is 220 l/min in size 25, command value 4 to 20 mA.
Proportional Directional Valve 4WRZE25W9-220-7X/6EG24N9K31/F1M - Bosch Rexroth R901115112
BOSCH REXROTH
Original product
Net price (excl. VAT)
€5,140.16
Item
BRR-R901115112
Manufacturer no.
R901115112
Personal expert advice
Brand new
Specialist dealer since 2009
Original product
Worldwide shipping
Product data
Manufacturer no.R901115112
Country of originGermany
ConditionNew
Artikel
BRR-R901115112
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Accumulator operation and strongly varying system pressure put limits on an internal pilot stage. The 4WRZE25W9-220-7X/6EG24N9K31/F1M avoids that with external pilot supply and external return, while delivering 220 l/min nominal flow at 350 bar.
Benefits
- External pilot oil supply and external return keep the pilot stage fed at every operating point
- 220 l/min nominal flow in size 25, up to 870 l/min maximum
- Version without a pressure reducing valve in the pilot stage
- Concealed manual override, protected against accidental adjustment
- Current interface 4 to 20 mA on a 24 V DC supply
- Spool symbol W9, mounting pattern ISO 4401-08-08-0-05, mass 20.34 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 | 220 l/min |
| Conformity | UKCA |
| Supply voltage | 24 V DC |
| 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 W9 |
| 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 | 20.34 kg |
Applications
The variant belongs on accumulator presses, forging lines and test rigs with widely varying system pressure. Its own pilot circuit keeps the pilot stage working even when working pressure collapses briefly. At 220 l/min it covers large size 25 cylinders.
Manufacturer
Bosch Rexroth, material number R901115112, type designation 4WRZE25W9-220-7X/6EG24N9K31/F1M. The matching datasheets are Proportional directional valve, pilot-operated (RE 29115) and Hydraulic valves and hydro- (RE 07600-B).
| Weight | 20.340000 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Hersteller-Nr | R901115112 |
| 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 |
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