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Proportional Directional Valve 4WRTE27W8-500L-4X/6EG24EK31/A1M - Bosch Rexroth R901051146

Bosch Rexroth ✓ Original product Brand new Made in Germany

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.

Net
€7,577.51
excl. VAT
Item BRR-R901051146
Manufacturer no. R901051146
Question about this item
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Description

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.

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.

Technical data

Connection diagramISO 4401-08-07-0-05
Max. flow1000 l/min
Product family4WRTE
Type of connectionSubplate mounting
Nominal flow500 l/min
Supply voltage24 V DC
ConnectivityAnalog, command value ±10 V
Number of switching positions3
Hydraulic fluidHL
Number of ports4
Electrical connection descriptionConnector 7-pole (6 + PE) according to EN 175201-804
Spool symbolSymbol W8
Operating pressure, max.270 bar
Size27
SealsNBR
Electrical connectorConnector, 7-pole (6 + PE)
Type of actuationElectrical with on-board electronics
Weight19.5 kg
ManufacturerBosch Rexroth
Hersteller-NrR901051146
GPSR HerstellerdatenBosch Rexroth AG, Zum Eisengießer 1, DE-97816 Lohr am Main, www.boschrexroth.com
ArtikelzustandNew
Artikel-AuthentizitätOriginal product
Country of ManufactureGermany

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