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A separate, pressure stable pilot supply keeps the pilot stage independent of a fluctuating working pressure. This 4WRTE25E220L-4X uses external supply and external return, at 220 l/min nominal flow with a 4 to 20 mA command value.
Proportional Directional Valve 4WRTE25E220L-4X/6EG24K31/F1M - Bosch Rexroth R901377869
BOSCH REXROTH
Original product
Net price (excl. VAT)
€5,855.45
Item
BRR-R901377869
Manufacturer no.
R901377869
Personal expert advice
Brand new
Specialist dealer since 2009
Original product
Worldwide shipping
Product data
Manufacturer no.R901377869
Country of originGermany
Customs tariff number84812010
ConditionNew
Artikel
BRR-R901377869
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When working pressure collapses during a load change, an internally supplied pilot stage briefly loses actuating force. The 4WRTE25E220L-4X with external pilot oil supply and external return avoids this and keeps controlling at 220 l/min nominal flow, at 350 bar operating pressure.
Benefits
- External pilot oil supply and external pilot oil return, decoupled from the working circuit
- 220 l/min nominal flow, 870 l/min maximum flow, 350 bar operating pressure
- Spool symbol E with three switching positions and four ports
- Analog 4 to 20 mA command value, on-board electronics, 24 VDC
- ISO 4401-08-08-0-05 interface, NBR seals
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 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 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 | 17.84 kg |
Applications
Sensible in installations with strongly changing load, for example forging hammers, shears and drawing presses. A small pilot power unit then supplies several valves with constant pilot pressure. The external return likewise prevents back pressure in the tank line from acting on the pilot stage.
Manufacturer
Bosch Rexroth, material number R901377869, type 4WRTE25E220L-4X/6EG24K31/F1M, component series 4X.
| Hersteller-Nr | R901377869 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Country of Manufacture | Germany |
| Weight | 17.840000 |
| 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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