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A central pilot circuit often carries more pressure than a single valve needs. The 4WRZ25W6-220-7X/6EG24N9K4/D3M reduces it on its own and ties into that circuit with both supply and return. 220 l/min nominal flow.
Proportional Directional Valve 4WRZ25W6-220-7X/6EG24N9K4/D3M - Bosch Rexroth R900977903
BOSCH REXROTH
Original product
Net price (excl. VAT)
€4,021.91
Item
BRR-R900977903
Manufacturer no.
R900977903
Personal expert advice
Brand new
Specialist dealer since 2009
Original product
Worldwide shipping
Product data
Manufacturer no.R900977903
Country of originGermany
ConditionNew
Artikel
BRR-R900977903
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A central pilot circuit feeds several valves at one common pressure level. The 4WRZ25W6-220-7X/6EG24N9K4/D3M adapts to it because it reduces its pilot pressure itself, and it controls 220 l/min nominal flow.
Benefits
- External supply and external return, the valve hangs entirely on the shared pilot circuit.
- Own pressure reducing valve in the pilot stage, circuit pressure may sit above the required control pressure.
- 220 l/min nominal flow, flow up to 870 l/min, spool symbol W6 in size 25.
- 20.38 kg weight, 350 bar maximum operating pressure on the ISO 4401-08-08-0-05 pattern.
- Concealed auxiliary actuation, commanded at 24 VDC through an external amplifier.
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 W6 |
| Operating pressure, max. | 350 bar |
| Size | 25 |
| Seals | NBR |
| Electrical connector | Connector, 3-pole (2 + PE) |
| Type of actuation | Electrical with external electronics |
| Weight | 20.38 kg |
Applications
Plants with several controlled axes fix pilot pressure and filtration grade in one place. Each valve then limits its control pressure to its own demand. That simplifies laying out the circuit and makes later extensions easier.
Manufacturer
Bosch Rexroth, material number R900977903. Permitted circuit pressure and pilot oil demand per valve are given in data sheet RE 29115, range overview in RE 07600-B.
| Hersteller-Nr | R900977903 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Country of Manufacture | Germany |
| Weight | 20.380000 |
| 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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