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If pressure in port P sometimes drops below pilot level, a pilot operated valve needs its own pilot oil source. The 4WRKE27R3-500L-3X/6EG24EK31/A1D3M is built with external pilot oil supply and meters 500 l/min nominal flow at 270 bar.
Proportional Directional Valve 4WRKE27R3-500L-3X/6EG24EK31/A1D3M - Bosch Rexroth R901264931
BOSCH REXROTH
Original product
Net price (excl. VAT)
€6,793.42
Item
BRR-R901264931
Manufacturer no.
R901264931
Personal expert advice
Brand new
Specialist dealer since 2009
Original product
Worldwide shipping
Product data
Manufacturer no.R901264931
Country of originGermany
ConditionNew
Artikel
BRR-R901264931
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In circuits with strongly varying system pressure the pilot stage can stall. The 4WRKE27R3-500L-3X/6EG24EK31/A1D3M therefore draws its pilot oil externally and stays operational while metering 500 l/min nominal flow at 270 bar operating pressure.
Benefits
- External pilot oil supply in the EK31 version keeps the valve controllable even at low pressure in port P.
- 500 l/min nominal flow and up to 1000 l/min maximum flow.
- A ±10 V command value at the on-board electronics, 24 VDC supply.
- Spool symbol R3 with three switching positions across four ports, ISO 4401-08-08-0-05 mounting pattern.
- Operating pressure up to 270 bar, 19.35 kg valve mass, NBR seals for HL hydraulic fluid.
Technical data
| Connection diagram | ISO 4401-08-08-0-05 |
| Max. flow | 1000 l/min |
| Product family | 4WRKE |
| Type of connection | Subplate mounting |
| Nominal flow | 500 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 R3 |
| 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 | 19.35 kg |
Application
Intended for plants with accumulator operation or several consumers where pump pressure collapses. A separate pilot oil line has to be planned. Otherwise the valve remains interchangeable with the K31 version of the same series, since mounting pattern and size are identical.
Manufacturer
Bosch Rexroth lists this valve under material number R901264931. Electrical connection is a 7-pole connector (6 + PE) to EN 175201-804.
| Hersteller-Nr | R901264931 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Country of Manufacture | Germany |
| Weight | 19.350000 |
| 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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