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A ±10 V command value together with fully internal pilot oil routing gives a variant that needs little piping. The valve meters 350 l/min nominal flow at up to 350 bar and weighs 17.94 kg. Supply and drain of the pilot oil run internally, so X and Y lines are dropped.
Proportional Directional Valve 4WRKE25W8-350L-3X/6EG24ETK31/A1D3M - Bosch Rexroth R900731881
BOSCH REXROTH
Original product
Net price (excl. VAT)
€5,506.66
Item
BRR-R900731881
Manufacturer no.
R900731881
Personal expert advice
Brand new
Specialist dealer since 2009
Original product
Worldwide shipping
Product data
Manufacturer no.R900731881
Country of originGermany
Customs tariff number84812010
ConditionNew
Artikel
BRR-R900731881
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Connection work drops noticeably when pilot stage and main stage share the same oil path. In version ETK the 4WRKE25W8-350L-3X does without X and Y lines and takes the command value as a ±10 V voltage, at 350 l/min nominal flow and operating pressure up to 350 bar.
Benefits
- Internal pilot oil supply and internal pilot oil return, little piping work
- 350 l/min nominal flow, flow rate up to 870 l/min
- ±10 V command value, 24 V DC supply, 7-pole connector (6 + PE)
- Spool symbol W8 with inductive position feedback
- 17.94 kg weight, operating pressure up to 350 bar
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 | 350 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 | 17.94 kg |
Applications
A match for axes in presses and test rigs whose controller has a voltage output. Position feedback reports the spool position back to the electronics on the valve. HL hydraulic fluid is approved and the seals are NBR.
Manufacturer
Bosch Rexroth, material number R900731881. The type code 4WRKE25W8-350L-3X/6EG24ETK31/A1D3M defines size, spool symbol, pilot oil routing and command value type without ambiguity.
| Weight | 17.940000 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Hersteller-Nr | R900731881 |
| 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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