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For manifolds without free pilot ports and controllers with a voltage output. Pilot oil runs internally in both directions, and the valve meters 220 l/min nominal flow at up to 350 bar operating pressure. The spool carries symbol W8 and the weight is 17.9 kg.
Proportional Directional Valve 4WRKE25W8-220L-3X/6EG24ETK31/A1D3M - Bosch Rexroth R900718022
BOSCH REXROTH
Original product
Net price (excl. VAT)
€5,506.66
Item
BRR-R900718022
Manufacturer no.
R900718022
Personal expert advice
Brand new
Specialist dealer since 2009
Original product
Worldwide shipping
Product data
Manufacturer no.R900718022
Country of originGermany
Customs tariff number84812010
ConditionNew
Artikel
BRR-R900718022
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Retrofits often fail because the existing manifold has no X and Y bores. In version ETK the 4WRKE25W8-220L-3X avoids that problem through internal pilot oil routing and accepts the command value as a ±10 V voltage, at 220 l/min nominal flow and operating pressure up to 350 bar.
Benefits
- Internal pilot oil supply and internal pilot oil return, fits manifolds without X and Y bores
- ±10 V command value, 24 V DC supply, 7-pole connector (6 + PE)
- 220 l/min nominal flow, flow rate up to 870 l/min
- Spool symbol W8, operating pressure up to 350 bar
- 17.9 kg weight, NBR seals for HL hydraulic fluid
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 | 17.9 kg |
Applications
Replacing an older proportional valve then works without modifying the manifold, as long as the ISO 4401-08-08-0-05 interface is present. Applications are feed axes, lifting gear and clamping systems. The return should be connected without pressure.
Manufacturer
Bosch Rexroth, material number R900718022. The type code 4WRKE25W8-220L-3X/6EG24ETK31/A1D3M defines size, spool symbol, pilot oil routing and command value type without ambiguity.
| Hersteller-Nr | R900718022 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Country of Manufacture | Germany |
| Weight | 17.900000 |
| 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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