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Proportional Directional Valve 4WRKE25W6-350L-3X/6EG24K31/F1D3V - Bosch Rexroth R901157446

Bosch Rexroth ✓ Original product Brand new Made in Germany

The thrust cylinders of a tunnel boring machine have to push together and evenly. This valve meters 350 l/min rated flow at up to 350 bar with spool symbol W6 and a 4...20 mA command signal. Internal piston position feedback, 17.96 kg.

Net
€5,873.76
excl. VAT
Item BRR-R901157446
Manufacturer no. R901157446
Question about this item
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Description

When several cylinders advance a machine together, the evenness of each axis decides the alignment. The 4WRKE25W6-350L-3X/6EG24K31/F1D3V supplies 350 l/min rated flow at 350 bar maximum and holds the spool through internal feedback.

Benefits

  • Internal piston position feedback and a linear characteristic, so parallel axes react alike.
  • 350 l/min rated flow, flow up to 870 l/min, operating limit 350 bar.
  • Spool symbol W6 blocks at centre and holds the cylinder without actuation.
  • External pilot oil supply and external pilot oil return, size 25 to ISO 4401-08-08-0-05.
  • Current command value 4...20 mA, 24 VDC supply, 17.96 kg, FKM seals for HL fluid.

Application

Thrust and bracing cylinders in tunnelling and special foundation work, plus heavy lifting axes in plant construction, are the field of use. The current command signal stays free of interference even over the long cable runs of a drive. For a voltage signal and for spool symbol E the series carries separate material numbers.

Manufacturer

Bosch Rexroth, material number R901157446.

Technical data

Connection diagramISO 4401-08-08-0-05
Max. flow870 l/min
Product family4WRKE
Type of connectionSubplate mounting
Nominal flow350 l/min
Supply voltage24 VDC
ConnectivityAnalog, command value 4...20 mA
Number of switching positions3
Hydraulic fluidHL
Number of ports4
Electrical connection descriptionConnector 7-pole (6 + PE) according to EN 175201-804
Spool symbolSymbol W6
Operating pressure, max.350 bar
Size25
SealsFKM
Electrical connectorConnector, 7-pole (6 + PE)
Type of actuationElectrical with on-board electronics
Weight17.96 kg
ManufacturerBosch Rexroth
Hersteller-NrR901157446
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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