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Not every size 25 axis needs the full flow rating. This version of the 4WRZE stays at 220 l/min nominal flow and therefore works in the finer part of the characteristic curve, at an unchanged 350 bar operating pressure with analog control through its on-board electronics.
Proportional Directional Valve 4WRZE25W6-220-7X/6EG24ETK31/A1D3M - Bosch Rexroth R900954679
BOSCH REXROTH
Original product
Net price (excl. VAT)
€4,736.28
Item
BRR-R900954679
Manufacturer no.
R900954679
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Brand new
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Original product
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Product data
Manufacturer no.R900954679
Country of originGermany
ConditionNew
Artikel
BRR-R900954679
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A smaller nominal flow in the same body improves control resolution at medium oil volumes. The 4WRZE25W6-220-7X/6EG24ETK31/A1D3M meters 220 l/min at 350 bar, uses spool symbol W6 and receives its pilot oil internally.
Benefits
- Nominal flow 220 l/min instead of the larger step, finer resolution in part load.
- Up to 870 l/min remain possible through the valve, keeping reserve for rapid traverse.
- Operating pressure up to 350 bar, mounting pattern ISO 4401-08-08-0-05, three switching positions.
- Internal pilot oil supply and internal return, no additional control circuit required.
- Analog ±10 V command value at the on-board electronics, 24 VDC supply, 7-pole connector (6 + PE).
- NBR seals for HL hydraulic fluid, mass 20.6 kg.
Technical data
| Product family | 4WRZ(E) |
| Size | 25 |
| Connection diagram | ISO 4401-08-08-0-05 |
| Type of connection | Subplate mounting |
| Nominal flow | 220 l/min |
| Max. flow | 870 l/min |
| Operating pressure, max. | 350 bar |
| Number of ports | 4 |
| Number of switching positions | 3 |
| Spool symbol | Symbol W6 |
| Type of actuation | Electrical with on-board electronics |
| Connectivity | Analog, command value ±10 V |
| Supply voltage | 24 VDC |
| Electrical connection description | Connector 7-pole (6 + PE) according to EN 175201-804 |
| Electrical connector | Connector, 7-pole (6 + PE) |
| Hydraulic fluid | HL |
| Seals | NBR |
| Conformity | UKCA |
| Conformity description | UKCA - Electromagnetic compatibility (EMC) SI2016/1091 |
| Weight | 20.6 kg |
Applications
Typical duties are feed axes on presses and test rigs that alternate between slow approach and fast retract. The reduced nominal flow keeps the curve steeper in the working range and makes fine control easier. The valve replaces a larger rating without changing subplate or piping.
Manufacturer
Bosch Rexroth, material number R900954679. Sizing data and characteristic curves are in the data sheet Proportional directional valve, pilot-operated (RE 29115).
| Hersteller-Nr | R900954679 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Country of Manufacture | Germany |
| Weight | 20.600000 |
| 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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