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In manifolds where P and T of the working circuit pulsate strongly, the pilot stage is better fed fully externally. This 4WRZE25 works that way and sets 220 l/min nominal flow at 350 bar. Spool symbol W6, 4...20 mA command, weight 20.45 kg.
Proportional Directional Valve 4WRZE25W6-220-7X/6EG24N9K31/F1M - Bosch Rexroth R900730472
BOSCH REXROTH
Original product
Net price (excl. VAT)
€4,593.14
Item
BRR-R900730472
Manufacturer no.
R900730472
Personal expert advice
Brand new
Specialist dealer since 2009
Original product
Worldwide shipping
Product data
Manufacturer no.R900730472
Country of originGermany
Customs tariff number84812010
ConditionNew
Artikel
BRR-R900730472
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Pressure pulsation in the working circuit carries over into an internally supplied pilot stage and makes the control restless. This version separates the two, because pilot oil is fed externally and returned externally, at 220 l/min nominal flow and 350 bar.
Benefits
- External supply and external return keep working circuit pulsation away from the pilot stage.
- 220 l/min nominal flow at 350 bar, up to 870 l/min maximum.
- 4...20 mA command with live zero for line monitoring.
- On-board electronics, 24 VDC supply, connection by 7-pole connector (6 + PE).
- ISO 4401-08-08-0-05 connection diagram, three switching positions with four ports.
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 W6 |
| 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 | 20.45 kg |
Applications
This layout is found on plants with piston pumps, on baling presses and in machines with frequent load changes. The dedicated pilot supply can also be filtered more finely than the main circuit. HL hydraulic fluid with NBR seals is released.
Manufacturer
The manufacturer is Bosch Rexroth, material number R900730472. Further data on curves and installation is provided by data sheet RE 29115 and RE 07600-B.
| Hersteller-Nr | R900730472 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Country of Manufacture | Germany |
| Weight | 20.450000 |
| Zolltarifnummer | 84812010 |
| 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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