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External pilot oil supply, external return and a ±10 V command value mark this version with spool symbol W8. It meters 220 l/min nominal flow, is approved up to 350 bar and weighs 18 kg. Its pilot circuit can be filtered on its own.
Proportional Directional Valve 4WRKE25W8-220L-3X/6EG24K31/A1D3M - Bosch Rexroth R900721996
BOSCH REXROTH
Original product
Net price (excl. VAT)
€5,034.37
Item
BRR-R900721996
Manufacturer no.
R900721996
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Brand new
Specialist dealer since 2009
Original product
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Product data
Manufacturer no.R900721996
Country of originGermany
Customs tariff number84812010
ConditionNew
Artikel
BRR-R900721996
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When the pilot circuit is built up completely separately, it can be filtered and monitored on its own. In version K the 4WRKE25W8-220L-3X therefore feeds and drains pilot oil externally and meters 220 l/min nominal flow at operating pressure up to 350 bar. The command value arrives as ±10 V.
Benefits
- External pilot oil supply and external pilot oil return, pilot circuit can be filtered separately
- Spool symbol W8, three switching positions, four ports
- 220 l/min nominal flow, flow rate up to 870 l/min
- ±10 V command value at on-board electronics, 24 V DC
- 18 kg weight, operating pressure up to 350 bar, ISO 4401-08-08-0-05 interface
Technical data
| Connection diagram | ISO 4401-08-08-0-05 |
| Max. flow | 870 l/min |
| Product family | 4WRKE |
| Type of connection | Subplate mounting |
| Nominal flow | 220 l/min |
| Supply voltage | 24 VDC |
| Connectivity | Analog, command value ±10 V |
| 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, 7-pole (6 + PE) |
| Type of actuation | Electrical with on-board electronics |
| Weight | 18 kg |
Applications
The variant is used on power units with their own pilot pump, as commonly found in press lines and rolling mills. Well filtered pilot oil extends the service life of the pilot stage. Mounting is on a size 25 subplate.
Manufacturer
Bosch Rexroth, material number R900721996. The type code 4WRKE25W8-220L-3X/6EG24K31/A1D3M defines size, spool symbol, pilot oil routing and command value type without ambiguity.
| Hersteller-Nr | R900721996 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Country of Manufacture | Germany |
| Weight | 18.000000 |
| 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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