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Proportional Directional Valve 4WRKE25W6-350L-3X/6EG24K31/F1D3V - Bosch Rexroth R901157446
The thrust cylinders of a tunnel boring machine have to push together and evenly. This valve meters 350 l/min rated flow at up to 350 bar with spool symbol W6 and a 4...20 mA command signal. Internal piston position feedback, 17.96 kg.
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Description
When several cylinders advance a machine together, the evenness of each axis decides the alignment. The 4WRKE25W6-350L-3X/6EG24K31/F1D3V supplies 350 l/min rated flow at 350 bar maximum and holds the spool through internal feedback.
Benefits
- Internal piston position feedback and a linear characteristic, so parallel axes react alike.
- 350 l/min rated flow, flow up to 870 l/min, operating limit 350 bar.
- Spool symbol W6 blocks at centre and holds the cylinder without actuation.
- External pilot oil supply and external pilot oil return, size 25 to ISO 4401-08-08-0-05.
- Current command value 4...20 mA, 24 VDC supply, 17.96 kg, FKM seals for HL fluid.
Application
Thrust and bracing cylinders in tunnelling and special foundation work, plus heavy lifting axes in plant construction, are the field of use. The current command signal stays free of interference even over the long cable runs of a drive. For a voltage signal and for spool symbol E the series carries separate material numbers.
Manufacturer
Bosch Rexroth, material number R901157446.
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 | FKM |
| Electrical connector | Connector, 7-pole (6 + PE) |
| Type of actuation | Electrical with on-board electronics |
| Weight | 17.96 kg |
| Manufacturer | Bosch Rexroth |
| Hersteller-Nr | R901157446 |
| 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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