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This variant needs neither a pilot pump nor a separate drain channel and therefore fits into simple power units. Size 25, symbol W9, 220 l/min nominal flow, ±10 V DC command value and operating pressure up to 350 bar.
Proportional Directional Valve 4WRZE25W9-220-7X/6EG24N9ETK31/A1D3M - Bosch Rexroth R900751428
BOSCH REXROTH
Original product
Net price (excl. VAT)
€4,830.94
Item
BRR-R900751428
Manufacturer no.
R900751428
Personal expert advice
Brand new
Specialist dealer since 2009
Original product
Worldwide shipping
Product data
Manufacturer no.R900751428
Country of originGermany
Customs tariff number84812010
ConditionNew
Artikel
BRR-R900751428
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The fewer ports a hydraulic manifold needs, the faster it is machined. The 4WRZE25W9-220-7X/6EG24N9ETK31/A1D3M manages with internal pilot oil supply and internal return while controlling 220 l/min nominal flow in size 25.
Benefits
- Internal piloting in both directions, so neither an X nor a Y port is required on the manifold.
- 220 l/min nominal flow, 870 l/min maximum flow, operating pressure up to 350 bar.
- Pressure reducing valve in the pilot circuit keeps pilot pressure taken from the working circuit constant.
- Command value ±10 V DC, 24 V DC through a 7-pole connector (6 + PE) to EN 175201-804.
- Symbol W9, three switching positions, concealed auxiliary actuation, weight 20.74 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 ±10 V |
| 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 | 20.74 kg |
Applications
The valve fits standard power units on presses, lift tables and clamping systems where no pilot circuit was planned. Installation is limited to mounting pattern ISO 4401-08-08-0-05 and the electrical connection. Working pressure must stay permanently above the minimum pilot pressure of the range.
Manufacturer
Bosch Rexroth, material number R900751428. Minimum pilot pressure and characteristic curves are in data sheet RE 29115, RE 07600-B adds the general data.
| Hersteller-Nr | R900751428 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Country of Manufacture | Germany |
| Weight | 20.740000 |
| Zolltarifnummer | 84812010 |
| 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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