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A lock gate moves slowly, with great force and over long travel. The 4WRZE25W8-220-7X/6EG24N9K31/A1D3M carries 220 l/min nominal flow for that, with spool symbol W8, a ±10 V command value and both pilot paths external.
Proportional Directional Valve 4WRZE25W8-220-7X/6EG24N9K31/A1D3M - Bosch Rexroth R901070268
BOSCH REXROTH
Original product
Net price (excl. VAT)
€4,577.68
Item
BRR-R901070268
Manufacturer no.
R901070268
Personal expert advice
Brand new
Specialist dealer since 2009
Original product
Worldwide shipping
Product data
Manufacturer no.R901070268
Country of originGermany
ConditionNew
Artikel
BRR-R901070268
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Hydraulic drives in water engineering often sit far from the power unit and use a dedicated pilot circuit. The 4WRZE25W8-220-7X/6EG24N9K31/A1D3M is built for that case, taking pilot oil from outside and draining it outside while metering 220 l/min nominal flow at 350 bar.
Benefits
- Both pilot paths external, matching power units placed away from the drive.
- Nominal flow 220 l/min is enough for slow large cylinders with high force.
- Spool symbol W8 holds the load in the centre position as defined by the circuit.
- Command value ±10 V with on-board electronics, supply 24 V DC.
- ISO 4401-08-08-0-05, 350 bar operating pressure, 20.62 kg, UKCA to SI2016/1091.
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 V DC |
| 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 W8 |
| 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 | 20.62 kg |
Applications
The valve drives lock gates, weir flaps and lifting sluices as well as comparable hydraulic steel structures. The concealed manual override allows emergency motion if control voltage fails. The dedicated pilot circuit stays unaffected by the long pipe run to the cylinder.
Manufacturer
Bosch Rexroth, material number R901070268. Datasheet RE 29115 describes the pilot-operated proportional directional valve, RE 07600-B gives the range overview.
| Hersteller-Nr | R901070268 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Country of Manufacture | Germany |
| Weight | 20.620000 |
| 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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