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At 350 l/min nominal flow a noticeable amount of oil also passes through the pilot circuit and has to be drained cleanly. This valve supplies itself internally and drains through a port of its own, spool symbol E, plus minus 10 V command, size 25, up to 350 bar.
Proportional Directional Valve 4WRKE25E350L-3X/6EG24EK31/A1D3M - Bosch Rexroth R900731922
BOSCH REXROTH
Original product
Net price (excl. VAT)
€5,249.30
Item
BRR-R900731922
Manufacturer no.
R900731922
Personal expert advice
Brand new
Specialist dealer since 2009
Original product
Worldwide shipping
Product data
Manufacturer no.R900731922
Country of originGermany
Customs tariff number84812010
ConditionNew
Artikel
BRR-R900731922
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The larger the switched flow, the more back pressure in the tank channel affects the pilot stage. The 4WRKE25E350L-3X/6EG24EK31/A1D3M draws pilot oil internally but drains it separately, keeping 350 l/min nominal flow at 350 bar safely controllable.
Key benefits
- Internal pilot oil supply without a separate pump, external return against back pressure in the tank line.
- 350 l/min nominal flow, maximum flow 870 l/min, operating pressure up to 350 bar.
- Spool symbol E, 3 switching positions, 4 ports, connection pattern ISO 4401-08-08-0-05 in size 25.
- Plus minus 10 V command, 24 VDC supply, electronics carried on the valve.
- Internal spool position feedback, linear characteristic curve, 17.86 kg weight.
- NBR seals for HL hydraulic fluid, 7-pole connector (6 + PE).
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 E |
| 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 | 17.86 kg |
Applications
A fit for main axes on plastics machinery and presses whose return line carries brief flow surges on opening. Draining pilot oil separately keeps spool position stable during that phase. Internal supply saves the second pump in the power unit.
Manufacturer
Bosch Rexroth, material number R900731922. The type code 4WRKE25E350L-3X/6EG24EK31/A1D3M states size 25, spool symbol E, 350 l/min nominal flow and series 3X.
| Hersteller-Nr | R900731922 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Country of Manufacture | Germany |
| Weight | 17.860000 |
| 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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