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If working pressure drops below the pilot pressure required, an internally supplied pilot stage no longer switches cleanly. This 4WRTE25E220L-4X takes pilot oil externally and therefore stays controllable at any load condition, at 220 l/min nominal flow.
Proportional Directional Valve 4WRTE25E220L-4X/6EG24K31/A1M - Bosch Rexroth R900954281
BOSCH REXROTH
Original product
Net price (excl. VAT)
€6,510.01
Item
BRR-R900954281
Manufacturer no.
R900954281
Personal expert advice
Brand new
Specialist dealer since 2009
Original product
Worldwide shipping
Product data
Manufacturer no.R900954281
Country of originGermany
ConditionNew
Artikel
BRR-R900954281
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Pilot operated valves need a minimum pilot pressure. In circuits that occasionally work close to zero bar, an external pilot supply is therefore mandatory. This 4WRTE25E220L-4X is built that way, drains pilot oil externally as well, and controls 220 l/min nominal flow at up to 870 l/min total flow.
Benefits
- External pilot oil supply secures minimum pilot pressure even at low working pressure
- External pilot oil return, independent of pressure in the tank line
- 220 l/min nominal flow, 870 l/min maximum flow
- Spool symbol E, three switching positions, four ports
- Analog ±10 V command value, on-board electronics, 350 bar operating pressure
Technical data
| Connection diagram | ISO 4401-08-08-0-05 |
| Max. flow | 870 l/min |
| Product family | 4WRTE |
| Type of connection | Subplate mounting |
| Nominal flow | 220 l/min |
| Supply voltage | 24 VDC |
| 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 E |
| 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 | 18.06 kg |
Applications
Required in circuits with unloading or accumulator operation where system pressure temporarily drops close to zero. A separate pilot power unit keeps pilot pressure constant during that time. The 220 l/min nominal flow covers medium sized axes.
Manufacturer
Bosch Rexroth, material number R900954281, type 4WRTE25E220L-4X/6EG24K31/A1M, component series 4X.
| Hersteller-Nr | R900954281 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Country of Manufacture | Germany |
| Weight | 18.060000 |
| 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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