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Rolling mills and forming lines with strong interference fields control axes more safely through a current signal. This size 25 valve takes 4...20 mA, meters 325 l/min nominal at 350 bar with the E spool, and is supplied with pilot oil externally.

Proportional Directional Valve 4WRZE25E325-7X/6EG24N9TK31/F1D3M - Bosch Rexroth R900738833

BOSCH REXROTH Original product
Net price (excl. VAT)
€4,338.93
Item BRR-R900738833
Manufacturer no. R900738833
Personal expert advice
Brand new Specialist dealer since 2009 Original product Worldwide shipping
Product data
Manufacturer no.R900738833
Country of originGermany
Customs tariff number84812010
ConditionNew
Artikel
BRR-R900738833

Frequency converters and welding equipment put noise on every signal line. This valve sidesteps the problem with a 4...20 mA command value and meters 325 l/min nominal flow through its E spool.

Benefits

  • Current command value of 4...20 mA instead of a voltage signal, insensitive to electrical noise
  • Nominal flow 325 l/min at an operating pressure of 350 bar
  • External pilot oil supply with internal return, only one extra line required
  • E spool, three switching positions, four ports
  • UKCA conformity including electromagnetic compatibility to SI2016/1091
  • Weight 20.5 kg, port pattern ISO 4401-08-08-0-05

Technical data

Conformity descriptionUKCA - Electromagnetic compatibility (EMC) SI2016/1091
Connection diagramISO 4401-08-08-0-05
Max. flow870 l/min
Product family4WRZ(E)
Type of connectionSubplate mounting
Nominal flow325 l/min
ConformityUKCA
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 E
Operating pressure, max.350 bar
Size25
SealsNBR
Electrical connectorConnector, 7-pole (6 + PE)
Type of actuationElectrical with on-board electronics
Weight20.5 kg

Application

The version targets rolling lines, straightening machines and forming presses where large drives sit close to the control hydraulics. External pilot oil supply allows a dedicated filter stage for the pilot circuit. Operation is on HL hydraulic fluid with NBR seals.

Manufacturer

Bosch Rexroth lists this valve under material number R900738833. The manufacturer datasheet with characteristic curves, port pattern and installation dimensions is available in the download area of this page.

More Information
Hersteller-Nr R900738833
Manufacturer Bosch Rexroth
Country of Manufacture Germany
Weight 20.500000
Zolltarifnummer 84812010
GPSR Herstellerdaten A1-ESD equipment GmbH. Keldersstr. 15, DE-42697 Solingen, www.esd.equipment
Artikel-Authentizität Original product
Artikelzustand New
Position sensing No