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Internal oil take-off saves the pilot pump while the external return keeps pilot pressure clean. This size 27 version controls 500 l/min nominal flow with symbol W8 and a ±10 V DC command value at up to 270 bar.
Proportional Directional Valve 4WRTE27W8-500L-4X/6EG24EK31/A1M - Bosch Rexroth R901051146
BOSCH REXROTH
Original product
Net price (excl. VAT)
€7,577.51
Item
BRR-R901051146
Manufacturer no.
R901051146
Personal expert advice
Brand new
Specialist dealer since 2009
Original product
Worldwide shipping
Product data
Manufacturer no.R901051146
Country of originGermany
ConditionNew
Artikel
BRR-R901051146
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Not every plant justifies a dedicated pilot pump, yet a separate drain still makes sense. The 4WRTE27W8-500L-4X/6EG24EK31/A1M uses exactly that combination and carries 500 l/min nominal flow in size 27.
Benefits
- Internal pilot oil supply without an auxiliary pump, external return against tank back pressure.
- Symbol W8 with three switching positions and internal spool position feedback.
- 500 l/min nominal flow, 1000 l/min maximum flow, operating pressure up to 270 bar.
- Command value ±10 V DC, directly compatible with analogue axis control cards, supply 24 V DC.
- Weight 19.5 kg, NBR seals, mounting pattern ISO 4401-08-07-0-05.
Technical data
| Connection diagram | ISO 4401-08-07-0-05 |
| Max. flow | 1000 l/min |
| Product family | 4WRTE |
| Type of connection | Subplate mounting |
| Nominal flow | 500 l/min |
| 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. | 270 bar |
| Size | 27 |
| Seals | NBR |
| Electrical connector | Connector, 7-pole (6 + PE) |
| Type of actuation | Electrical with on-board electronics |
| Weight | 19.5 kg |
Applications
The valve works on large cylinder axes in forming plants, test rigs and lifting gear with a simple power unit. As long as system pressure stays above the minimum pilot pressure, internal supply works reliably. Its own pilot drain prevents feedback from the shared return line.
Manufacturer
Bosch Rexroth, material number R901051146. Size 27, symbol W8 and the pilot type are fixed in the type code 4WRTE27W8-500L-4X/6EG24EK31/A1M.
| Hersteller-Nr | R901051146 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Country of Manufacture | Germany |
| Weight | 19.500000 |
| 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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