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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.
Proportional Directional Valve 4WRZE25E325-7X/6EG24N9K31/A1M - Bosch Rexroth R900755997
BOSCH REXROTH
Original product
Net price (excl. VAT)
€4,131.33
Item
BRR-R900755997
Manufacturer no.
R900755997
Personal expert advice
Brand new
Specialist dealer since 2009
Original product
Worldwide shipping
Product data
Manufacturer no.R900755997
Country of originGermany
Customs tariff number84812010
ConditionNew
Artikel
BRR-R900755997
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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.
Technical data
| Conformity, evidence | UKCA - Electromagnetic compatibility (EMC) SI2016/1091 |
| Connection diagram | ISO 4401-08-08-0-05 |
| Max. flow | 870 l/min |
| Product family | 4WRZ(E) |
| Type of connection | Subplate mounting |
| Nominal flow | 325 l/min |
| Conformity | UKCA |
| Supply voltage | 24 VDC |
| Connectivity | Analog, command value ±10 V |
| Number of switching positions | 3 |
| Hydraulic fluid | HL |
| Number of ports | 4 |
| Electrical connection | Connector 7-pole (6 + PE) according to EN 175201-804 |
| Spool symbol | Symbol E |
| Operating pressure, max. | 350 bar |
| Size | 25 |
| Seals | NBR |
| Electrical connector | Connector, 7-pole (6 + PE) |
| Type of actuation | Electrical with on-board electronics |
| Weight | 20.28 kg |
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.
| Hersteller-Nr | R900755997 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Country of Manufacture | Germany |
| Weight | 20.280000 |
| 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 |
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