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Pilot oil taken internally but discharged externally to tank: this combination keeps the pilot stage clear of return line back pressure while still saving the X line. Nominal flow is 220 l/min in size 25, operating pressure up to 350 bar, mass 20.58 kg.
Proportional Directional Valve 4WRZE25W9-220-7X/6EG24N9EK31/F1M - Bosch Rexroth R900747301
BOSCH REXROTH
Original product
Net price (excl. VAT)
€4,623.33
Item
BRR-R900747301
Manufacturer no.
R900747301
Personal expert advice
Brand new
Specialist dealer since 2009
Original product
Worldwide shipping
Product data
Manufacturer no.R900747301
Country of originGermany
Customs tariff number84812010
ConditionNew
Artikel
BRR-R900747301
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Shared return lines, coolers and filters raise tank pressure and disturb the pilot stage. The 4WRZE25W9-220-7X/6EG24N9EK31/F1M therefore discharges its pilot oil externally through Y while taking it internally, and meters 220 l/min at up to 350 bar.
Benefits
- External pilot return through Y keeps the pilot stage independent of back pressure in the return line
- Internal pilot oil supply, so no X line is needed
- 220 l/min nominal flow with a maximum size flow of 870 l/min
- Concealed manual override and a build without a pressure reducing valve in the pilot stage
- Command value 4 to 20 mA, 24 V DC supply, 7-pole connector (6 + PE)
- Mass 20.58 kg, spool symbol W9, NBR seals, UKCA conformity
Technical data
| Conformity description | 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 | 220 l/min |
| Conformity | UKCA |
| Supply voltage | 24 V DC |
| Connectivity | Analog, command value 4 to 20 mA |
| Number of switching positions | 3 |
| Hydraulic fluid | HL |
| Number of ports | 4 |
| Electrical connection description | Connector, 7-pole (6 + PE) according to EN 175201-804 |
| Spool symbol | Symbol W9 |
| 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 | 20.58 kg |
Applications
The build fits plants with a long shared return line, for example press lines and test halls. It drives large size 25 cylinders at 220 l/min. Because only the Y line is added, the piping effort stays modest.
Manufacturer
Bosch Rexroth, material number R900747301, type designation 4WRZE25W9-220-7X/6EG24N9EK31/F1M. The datasheets Proportional directional valve, pilot-operated (RE 29115) and Hydraulic valves and hydro- (RE 07600-B) belong with it.
| Hersteller-Nr | R900747301 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Country of Manufacture | Germany |
| Weight | 3.580000 |
| 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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