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Axes that run under control in both directions and have their own pilot pump meet spool symbol W8 here. The valve meters 350 l/min nominal flow at up to 350 bar, and the command value is ±10 V. Pilot oil comes in through X and drains internally.
Proportional Directional Valve 4WRKE25W8-350L-3X/6EG24TK31/A1D3M - Bosch Rexroth R901049771
BOSCH REXROTH
Original product
Net price (excl. VAT)
€5,506.66
Item
BRR-R901049771
Manufacturer no.
R901049771
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Brand new
Specialist dealer since 2009
Original product
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Product data
Manufacturer no.R901049771
Country of originGermany
ConditionNew
Artikel
BRR-R901049771
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Two requirements meet in this variant, a spool carrying symbol W8 and an analogue command value of ±10 V. On that basis the 4WRKE25W8-350L-3X meters 350 l/min nominal flow at operating pressure up to 350 bar, taking pilot oil externally through X and draining it internally.
Benefits
- Spool symbol W8 for controls that need a particular centre position
- 350 l/min nominal flow, flow rate up to 870 l/min
- External pilot oil supply through X, internal pilot oil return
- ±10 V command value at on-board electronics, 24 V DC supply
- 17.92 kg weight, operating pressure up to 350 bar, NBR seals
Technical data
| Connection diagram | ISO 4401-08-08-0-05 |
| Max. flow | 870 l/min |
| Product family | 4WRKE |
| Type of connection | Subplate mounting |
| Nominal flow | 350 l/min |
| 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 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 | 17.92 kg |
Applications
The valve mounts on subplates to ISO 4401-08-08-0-05, for instance in press axes and forging manipulators. Inductive position feedback of the main spool holds the metering cross section steady when load pressure changes. HL hydraulic fluid is approved.
Manufacturer
Bosch Rexroth, material number R901049771. The type code 4WRKE25W8-350L-3X/6EG24TK31/A1D3M defines size, spool symbol, pilot oil routing and command value type without ambiguity.
| Hersteller-Nr | R901049771 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Country of Manufacture | Germany |
| Weight | 17.920000 |
| 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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