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High tank pressure disturbs the pilot stage when the return runs internally. The 4WRZ25E1-220 therefore drains it externally and is fed internally. Nominal flow 220 l/min, spool symbol E1, maximum operating pressure 350 bar.
Proportional Directional Valve 4WRZ25E1-220-7X/6EG24N9EK4/D3V - Bosch Rexroth R901005163
BOSCH REXROTH
Original product
Net price (excl. VAT)
€4,241.89
Item
BRR-R901005163
Manufacturer no.
R901005163
Personal expert advice
Brand new
Specialist dealer since 2009
Original product
Worldwide shipping
Product data
Manufacturer no.R901005163
Country of originGermany
ConditionNew
Artikel
BRR-R901005163
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High or fluctuating tank pressure acts back on the pilot stage when the return runs internally. The 4WRZ25E1-220-7X/6EG24N9EK4/D3V therefore drains the pilot oil return externally and supplies the pilot stage internally.
Benefits
- Internal pilot oil supply, external return, independent of tank pressure
- Pressure reducing valve in the pilot stage, spool symbol E1
- Nominal flow 220 l/min, maximum flow 870 l/min
- Pilot-operated spool valve with concealed auxiliary actuation
- Maximum operating pressure 350 bar, FKM seals, weight 20.46 kg
Technical data
| 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 |
| Supply voltage | 24 VDC |
| 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 E1 |
| Operating pressure, max. | 350 bar |
| Size | 25 |
| Seals | FKM |
| Electrical connector | Connector, 3-pole (2 + PE) |
| Type of actuation | Electrical with external electronics |
| Weight | 20.46 kg |
Applications
Meant for plants with a return filter or back pressure in the tank circuit, such as large power units with a shared return manifold. Separate draining keeps the pilot stage stable. ISO 4401-08-08-0-05 interface, size 25.
Manufacturer
Bosch Rexroth, material number R901005163, type 4WRZ25E1-220-7X/6EG24N9EK4/D3V. Design and characteristic curves are in the data sheet Proportional directional valve, pilot-operated RE 29115.
| Hersteller-Nr | R901005163 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Country of Manufacture | Germany |
| Weight | 20.460000 |
| 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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