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Proportional Directional Valve 4WRKE27W8-500L-3X/6EG24EK31/A1D3M - Bosch Rexroth R900701429
Large cylinders in rolling mills and presses call for oil volumes that a size 25 valve can no longer meter cleanly. This pilot-operated proportional directional valve in size 27 controls 500 l/min nominal flow at an operating pressure of up to 270 bar using spool symbol W8.
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Description
An axis drive with high oil demand needs a valve that keeps flow linear even on small command steps. The 4WRKE27W8-500L-3X/6EG24EK31/A1D3M in size 27 meters 500 l/min nominal flow at up to 270 bar along a linear characteristic curve.
Benefits
- 500 l/min nominal flow in size 27, up to 1000 l/min with the corresponding pressure drop
- Linear characteristic curve with internal spool position feedback, command value ±10 V
- Internal pilot oil supply with external pilot oil return, keeping the return clear of main circuit tank pressure
- Spool symbol W8 with three switching positions across four ports, operating pressure up to 270 bar
- 19.38 kg weight, connection diagram ISO 4401-08-08-0-05, NBR seals for HL hydraulic fluid
Applications
The valve suits rolling mill hydraulics, forging presses and test rigs with large cylinder volumes. External pilot oil return helps wherever tank pressure in the main circuit varies. Control runs through a connector, 7-pole (6 + PE) according to EN 175201-804 at 24 V DC.
Manufacturer
Bosch Rexroth, material number R900701429. Ordering code 4WRKE27W8-500L-3X/6EG24EK31/A1D3M. All characteristics come from the manufacturer catalogue.
Technical data
| Connection diagram | ISO 4401-08-08-0-05 |
|---|---|
| Max. flow | 1000 l/min |
| Product family | 4WRKE |
| Type of connection | Subplate mounting |
| Nominal flow | 500 l/min |
| Supply voltage | 24 V DC |
| 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. | 270 bar |
| Size | 27 |
| Seals | NBR |
| Electrical connector | Connector, 7-pole (6 + PE) |
| Type of actuation | Electrical with on-board electronics |
| Weight | 19.38 kg |
| Manufacturer | Bosch Rexroth |
| Hersteller-Nr | R900701429 |
| 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 |
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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