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One pilot line less in the manifold saves assembly time. This 4WRZE 25 taps pilot oil internally and returns it externally, metering 220 l/min nominal flow at 350 bar on a command value of plus to minus 10 V.
Proportional Directional Valve 4WRZE25E220-7X/6EG24N9EK31/A1V - Bosch Rexroth R978916577
BOSCH REXROTH
Original product
Net price (excl. VAT)
€5,052.46
Item
BRR-R978916577
Manufacturer no.
R978916577
Personal expert advice
Brand new
Specialist dealer since 2009
Original product
Worldwide shipping
Product data
Manufacturer no.R978916577
Country of originGermany
Customs tariff number84812010
ConditionNew
Artikel
BRR-R978916577
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Total price
The valve distributes up to 220 l/min nominal flow across four ports with electrical spool position feedback. At 350 bar operating pressure the flow limit reaches 870 l/min. Internal pilot supply removes the need for a separate feed line, the return is routed externally.
Benefits
- 220 l/min nominal flow, 870 l/min flow limit, operating pressure to 350 bar
- Internal pilot oil supply with external pilot oil return, one port less on the manifold
- On-board electronics, analog command value plus to minus 10 V at 24 VDC
- Spool symbol E, 3 switching positions, concealed manual override
- FKM seals, HL fluid, UKCA to SI2016/1091, mass 20.58 kg
Technical data
| Conformity description | UKCA - Electromagnetic compatibility (EMC) SI2016/1091 |
| 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 |
| Conformity | UKCA |
| 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 | FKM |
| Electrical connector | Connector, 7-pole (6 + PE) |
| Type of actuation | Electrical with on-board electronics |
| Weight | 20.58 kg |
Applications
The variant is intended for presses as well as test rigs whose pilot pressure comes from the working line. In cycles with fast reversal, internal position feedback keeps the spool steady. The ISO 4401-08-08-0-05 pattern is standardised, so a same-size valve can be swapped in.
Manufacturer
Bosch Rexroth lists this build as R978916577. Data sheet RE 29115 on the pilot-operated proportional directional valve carries every curve.
| Hersteller-Nr | R978916577 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Country of Manufacture | Germany |
| Weight | 20.580000 |
| Zolltarifnummer | 84812010 |
| 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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