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Size 25 proportional directional valve with a fully external pilot circuit, feed through X and return through Y. Control behaviour therefore stays independent of the main pressure, which may reach 350 bar. Nominal flow is 220 l/min and the command value is a 4-20 mA current loop.
Proportional Directional Valve 4WRZE25W6-220-7X/6EG24N9K31/F1D3V - Bosch Rexroth R901040919
BOSCH REXROTH
Original product
Net price (excl. VAT)
€4,772.83
Item
BRR-R901040919
Manufacturer no.
R901040919
Personal expert advice
Brand new
Specialist dealer since 2009
Original product
Worldwide shipping
Product data
Manufacturer no.R901040919
Country of originGermany
ConditionNew
Artikel
BRR-R901040919
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A fully external pilot circuit makes control behaviour independent of main pressure. This size 25 valve uses exactly that arrangement, meters 220 l/min nominal flow up to 350 bar and routes both pilot feed and pilot return through separate lines.
Benefits
- 220 l/min nominal flow against a valve maximum of 870 l/min
- External pilot feed and external return give steady pilot pressure regardless of a load pressure up to 350 bar
- Spool symbol W6 with three switching positions across four ports
- Command value 4-20 mA, on-board electronics at 24 VDC through a 7-pole connector (6 + PE)
- FKM seals released for HL hydraulic fluid, mass 50 kg as stated by the manufacturer
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 W6 |
| 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 | 50 kg |
Application
The arrangement suits plants with a central pilot pump, such as press lines, foundry equipment and test fields. Because neither pilot feed nor pilot return depends on the main circuit, step response stays reproducible even under sharply changing load. The subplate pattern follows ISO 4401-08-08-0-05.
Manufacturer
Bosch Rexroth lists the valve under material number R901040919. Step response, characteristic curves and installation dimensions follow data sheet RE 29115, plus RE 07600-B.
| Hersteller-Nr | R901040919 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Country of Manufacture | Germany |
| Weight | 3.580000 |
| GPSR Herstellerdaten | A1-ESD equipment GmbH. Keldersstr. 15, DE-42697 Solingen, www.esd.equipment |
| Artikel-Authentizität | Original product |
| Artikelzustand | New |
| Position sensing | No |
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