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Proportional Directional Valve 4WRKE25W6-350P-3X/6EG24K31/F1D3M - Bosch Rexroth R901047148
When system pressure drops below the minimum pilot pressure, pilot control needs its own source. This 4WRKE25W6-350P is supplied and relieved externally, sets 350 l/min from 4...20 mA and works up to 350 bar. Weight is 17.86 kg.
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Description
In this version both pilot oil supply and pilot oil return sit outside the main circuit, so pilot control keeps working when system pressure collapses. Nominal flow is 350 l/min, command value 4...20 mA and operating pressure up to 350 bar.
Advantages
- External pilot oil supply and external return, independent of the main circuit
- Nominal flow 350 l/min, maximum flow up to 870 l/min
- Command value 4...20 mA, stable over long cable runs
- Symbol W6, three switching positions, connection diagram ISO 4401-08-08-0-05
- Linear characteristic curve with fine control range, on-board electronics on 24 VDC
- Operating pressure up to 350 bar, 17.86 kg, NBR seals
Applications
Used in circuits with strongly varying pressure, for example accumulator systems or variable pumps at zero stroke. A small pilot power unit then feeds the valve separately. Symbol W6 opens the actuator ports in mid position.
Manufacturer
Bosch Rexroth, material number R901047148. The type designation of this article is 4WRKE25W6-350P-3X/6EG24K31/F1D3M.
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 4...20 mA |
| 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 W6 |
| 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 |
| Manufacturer | Bosch Rexroth |
| Hersteller-Nr | R901047148 |
| 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 |
Downloads
Datasheet
- Datasheet (PDF)
- Directional spool valves, direct operated (RE 23178) EN
- Directional spool valves, pilot-operated (RE 24751) EN
- Proportional directional valve, pilot-operated (RE 29115) EN
- Proportional directional valves, pilot-operated, with electrical position feedback and integrated EN
- Proportional-Wegeventil, vorgesteuert, ohne elektrische Wegrückführung, mit oder ohne integrierter (RD 29115) DE
- Proportional-Wegeventile, vorgesteuert, mit elektrischer Wegrückführung und integrierter Elektronik (RD 29075) DE
- Wege-Schieberventile, direktgesteuert, mit Magnetbetätigung DE
- Wege-Schieberventile, vorgesteuert, mit hydraulischer oder elektro-hydraulischer Betätigung (RD 24751) DE
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