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A shared reservoir for several machines carries constantly changing pressure in the return. The 4WRZ25W8-220-7X/6EG24EK4/M steps out of that with an external pilot drain and internal supply. 220 l/min nominal flow, 20.2 kg weight.
Proportional Directional Valve 4WRZ25W8-220-7X/6EG24EK4/M - Bosch Rexroth R900725325
BOSCH REXROTH
Original product
Net price (excl. VAT)
€3,968.84
Item
BRR-R900725325
Manufacturer no.
R900725325
Personal expert advice
Brand new
Specialist dealer since 2009
Original product
Worldwide shipping
Product data
Manufacturer no.R900725325
Country of originGermany
Customs tariff number84812010
ConditionNew
Artikel
BRR-R900725325
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When several machines feed the same return line, its pressure changes continuously. The 4WRZ25W8-220-7X/6EG24EK4/M therefore drains its pilot oil through a dedicated Y line, takes it internally from the main circuit and controls 220 l/min nominal flow.
Benefits
- Dedicated Y line, changing pressure in the shared return does not act on pilot control.
- Internal supply, no additional X line has to be routed.
- 220 l/min nominal flow, flow up to 870 l/min, spool symbol W8 in size 25.
- 20.2 kg weight, 350 bar maximum operating pressure, four ports, three switching positions.
- NBR seals, HL hydraulic fluid, 24 VDC through a 7-pole (6 + PE) plug to EN 175201-804.
Technical data
| 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 |
| Supply voltage | 24 VDC |
| 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 W8 |
| Operating pressure, max. | 350 bar |
| Size | 25 |
| Seals | NBR |
| Electrical connector | Connector, 3-pole (2 + PE) |
| Type of actuation | Electrical with external electronics |
| Weight | 20.2 kg |
Applications
Return conditions like these arise in production lines where several power units work into one common reservoir. The separate Y line takes pilot oil straight to the reservoir. The working return may keep using the collecting line.
Manufacturer
Bosch Rexroth, material number R900725325. Permitted back pressure in the Y line and the characteristic curves are given in data sheet RE 29115, supplemented by RE 07600-B.
| Weight | 20.200000 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Hersteller-Nr | R900725325 |
| Zolltarifnummer | 84812010 |
| 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 |
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