Images are for illustration purposes only and may differ from the actual product. Some images have been generated or edited, in whole or in part, using artificial intelligence systems. The technical specifications in the product description are authoritative.
Back pressure in the tank line upsets a pilot stage that drains internally. This 4WRZE32 build takes pilot oil internally and returns it through a separate external line. 520 l/min nominal flow, 350 bar, spool symbol W8, ±10 V command value.

Proportional Directional Valve 4WRZE32W8-520-7X/6EG24N9EK31/A1V - Bosch Rexroth R901272130

BOSCH REXROTH Original product
Net price (excl. VAT)
€7,604.00
Item BRR-R901272130
Manufacturer no. R901272130
Personal expert advice
Brand new Specialist dealer since 2009 Original product Worldwide shipping
Product data
Manufacturer no.R901272130
Country of originGermany
ConditionNew
Artikel
BRR-R901272130

As soon as several consumers dump into the same tank line, pressure builds there, and the pilot circuit should not see it. The 4WRZE32W8-520-7X/6EG24N9EK31/A1V therefore takes pilot oil internally from the main port and routes the pilot oil return through its own external line. Size 32, 520 l/min nominal flow, up to 350 bar.

Benefits

  • Internal pilot oil supply with external pilot oil return needs no extra pilot pump and still keeps the pilot drain unloaded.
  • 520 l/min nominal flow, up to 1600 l/min maximum, 350 bar operating pressure.
  • Spool symbol W8, three switching positions, four ports, ISO 4401-10-09-0-05 mounting pattern.
  • ±10 V command value, on-board electronics, 24 VDC, 7-pole connector (6 + PE) to EN 175201-804.
  • FKM seals for HL fluid, concealed manual override, weight 44 kg.

Technical data

Conformity descriptionUKCA - electromagnetic compatibility (EMC) SI2016/1091
Connection diagramISO 4401-10-09-0-05
Max. flow1600 l/min
Product family4WRZ(E)
Type of connectionSubplate mounting
Nominal flow520 l/min
ConformityUKCA
Supply voltage24 VDC
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.350 bar
Size32
SealsFKM
Electrical connectorConnector, 7-pole (6 + PE)
Type of actuationElectrical with on-board electronics
Weight44 kg

Applications

Suited to plant with a heavily loaded tank line: press lines, hydraulic test benches, rolling and forging equipment running several axes in parallel. The valve mounts on an ISO 4401-10-09-0-05 subplate and the pilot drain runs straight back to tank.

Manufacturer

Bosch Rexroth lists this valve under material number R901272130. Characteristic curves and installation dimensions are given in data sheet RE 29115, RE 07600-B.

More Information
Weight 44.000000
Manufacturer Bosch Rexroth
Hersteller-Nr R901272130
GPSR Herstellerdaten Bosch Rexroth AG, Zum Eisengießer 1, DE-97816 Lohr am Main, www.boschrexroth.com
Artikelzustand New
Artikel-Authentizität Original product
Country of Manufacture Germany