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When working pressure is lowered to save energy, pilot control needs a source of its own. The 4WRZ25W8-325-7X/6EG24N9TK4/M is fed externally, returns internally and controls 325 l/min nominal flow at 20.2 kg weight.
Proportional Directional Valve 4WRZ25W8-325-7X/6EG24N9TK4/M - Bosch Rexroth R900723646
BOSCH REXROTH
Original product
Net price (excl. VAT)
€4,056.53
Item
BRR-R900723646
Manufacturer no.
R900723646
Personal expert advice
Brand new
Specialist dealer since 2009
Original product
Worldwide shipping
Product data
Manufacturer no.R900723646
Country of originGermany
Customs tariff number84812010
ConditionNew
Artikel
BRR-R900723646
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Demand-controlled drives cut working pressure far back as soon as the axis holds. So that pilot control is not affected, the 4WRZ25W8-325-7X/6EG24N9TK4/M draws its pilot oil externally and controls 325 l/min nominal flow with spool symbol W8.
Benefits
- External pilot supply, pilot pressure does not follow the lowered working pressure.
- Internal return, only the X line has to be routed in addition.
- 325 l/min nominal flow, flow up to 870 l/min, size 25.
- 20.2 kg weight, 350 bar maximum operating pressure, NBR seals, HL hydraulic fluid.
- Concealed auxiliary actuation and control at 24 VDC through an external amplifier.
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 | 325 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
The valve is intended for plants with a variable pump or a speed-controlled drive whose pressure level changes across the cycle. The separate X line holds pilot pressure constant while the working circuit is lowered. Pilot oil drains through the tank channel of the connection pattern.
Manufacturer
Bosch Rexroth, material number R900723646. Minimum pilot pressure and pilot oil demand are given in data sheet RE 29115, the range overview in RE 07600-B.
| Hersteller-Nr | R900723646 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Country of Manufacture | Germany |
| Weight | 20.200000 |
| Zolltarifnummer | 84812010 |
| GPSR Herstellerdaten | Bosch Rexroth AG, Zum Eisengießer 1, DE-97816 Lohr am Main, www.boschrexroth.com |
| Artikel-Authentizität | Original product |
| Artikelzustand | New |
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