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Return filters and coolers create back pressure that disturbs pilot control. This 4WRZ32W9-520 therefore drains pilot oil through its own line while the supply stays internal. 520 l/min nominal flow, up to 350 bar, weight 43.96 kg.

Proportional Directional Valve 4WRZ32W9-520-7X/6EG24N9EK4/D3M - Bosch Rexroth R900979880

BOSCH REXROTH Original product
Net price (excl. VAT)
€6,650.77
Item BRR-R900979880
Manufacturer no. R900979880
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Product data
Manufacturer no.R900979880
Country of originGermany
ConditionNew
Artikel
BRR-R900979880
Frequently Bought Together

An external pilot oil return keeps pilot control clear of back pressure from port T. This version with spool symbol W9 converts 520 l/min nominal flow and works at operating pressures up to 350 bar.

Advantages

  • External pilot oil return, internal supply from port P
  • Nominal flow 520 l/min, maximum flow up to 1600 l/min
  • Spool symbol W9, three switching positions, operating pressure up to 350 bar
  • Pressure reducing valve in the pilot stage keeps pilot pressure constant
  • External amplifier electronics on 24 VDC, concealed auxiliary actuation
  • NBR seals for HL hydraulic fluid, 43.96 kg, connection diagram ISO 4401-10-09-0-05

Technical data

Connection diagramISO 4401-10-09-0-05
Max. flow1600 l/min
Product family4WRZ(E)
Type of connectionSubplate mounting
Nominal flow520 l/min
Supply voltage24 VDC
Number of switching positions3
Hydraulic fluidHL
Number of ports4
Electrical connection descriptionConnector, 7-pole (6 + PE) according to EN 175201-804
Spool symbolSymbol W9
Operating pressure, max.350 bar
Size32
SealsNBR
Electrical connectorConnector, 3-pole (2 + PE)
Type of actuationElectrical with external electronics
Weight43.96 kg

Applications

Used on power units with a return filter, cooler or shared collecting line where several bar sit in port T. The separate drain keeps the characteristic curve repeatable. Control comes from an amplifier card in the cabinet.

Manufacturer

Bosch Rexroth, material number R900979880. The article carries type designation 4WRZ32W9-520-7X/6EG24N9EK4/D3M. Characteristic curves, limits and installation notes are in data sheet RE 29115, the range overview RE 07600-B adds to it.

More Information
Hersteller-Nr R900979880
Manufacturer Bosch Rexroth
Country of Manufacture Germany
Weight 43.960000
GPSR Herstellerdaten Bosch Rexroth AG, Zum Eisengießer 1, DE-97816 Lohr am Main, www.boschrexroth.com
Artikel-Authentizität Original product
Artikelzustand New