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Proportional Directional Valve 4WRZE25E325-7X/6EG24N9K31/A1M - Bosch Rexroth R900755997

Bosch Rexroth ✓ Original product Brand new Made in Germany

Test benches run with a pilot pressure held constant so that the step response stays the same across the whole load range. This 4WRZE25 with spool symbol E is therefore piloted and drained externally, at 325 l/min nominal flow and 350 bar. The command value is ±10 V.

Net
€4,593.14
excl. VAT
Item BRR-R900755997
Manufacturer no. R900755997
Question about this item
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Description

A reproducible step response requires a pilot pressure that does not move with the load. That is why this version is piloted externally and drained externally, while delivering 325 l/min nominal flow at 350 bar operating pressure.

Benefits

  • External pilot supply holds pilot pressure constant across the whole load range.
  • External drain keeps the pilot chamber free of back pressure from the working line.
  • 325 l/min nominal flow, maximum flow 870 l/min.
  • ±10 V command with on-board electronics, 24 VDC supply.
  • 20.28 kg on the standard size 25 interface ISO 4401-08-08-0-05.

Applications

Typical applications are material testing machines, servo hydraulic pulsers and development test benches with changing load. In production plants with strongly varying system pressure the behaviour stays equally uniform. NBR seals match HL hydraulic fluid.

Manufacturer

Bosch Rexroth lists this product under material number R900755997. Further data on curves and installation is provided by data sheet RE 29115 and RE 07600-B.

Technical data

Conformity, evidenceUKCA - 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 ±10 V
Number of switching positions3
Hydraulic fluidHL
Number of ports4
Electrical connectionConnector 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
Weight20.28 kg
ManufacturerBosch Rexroth
Hersteller-NrR900755997
Zolltarifnummer84812010
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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