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An axis that needs 350 l/min and still has to stop accurately cannot rely on open loop current control. This size 25 4WRTE controls the position of its main spool internally and works at 350 bar operating pressure. Pilot oil is supplied and returned internally.
Proportional Directional Valve 4WRTE25E1-350L-4X/6EG24ETK31/F1M - Bosch Rexroth R901366874
BOSCH REXROTH
Original product
Net price (excl. VAT)
€6,086.93
Item
BRR-R901366874
Manufacturer no.
R901366874
Personal expert advice
Brand new
Specialist dealer since 2009
Original product
Worldwide shipping
Product data
Manufacturer no.R901366874
Country of originGermany
Customs tariff number84812010
ConditionNew
Artikel
BRR-R901366874
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High flow and accurate stopping only go together when the valve watches the position of its own main spool. The 4WRTE with spool symbol E1 does that with an internal position control loop while delivering 350 l/min nominal flow at 350 bar.
Benefits
- 350 l/min nominal flow, up to 870 l/min maximum, at 350 bar operating pressure.
- Internal position control of the main spool holds the opening steady against flow forces.
- Linear characteristic assigns a fixed opening to every command value, which simplifies loop tuning.
- Internal pilot supply and internal return, so only P, T, A and B have to be piped.
- 4...20 mA command and on-board electronics, 24 VDC supply.
Technical data
| Connection diagram | ISO 4401-08-08-0-05 |
| Max. flow | 870 l/min |
| Product family | 4WRTE |
| 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 | Connector 7-pole (6 + PE) according to EN 175201-804 |
| Spool symbol | Symbol E1 |
| 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 | 17.98 kg |
Applications
The valve is used on fast positioning axes in presses, on test benches and in plants with large cylinders. The ISO 4401-08-08-0-05 interface is the size 25 standard, so mechanical replacement of a valve without position control is possible. The valve weighs 17.98 kg.
Manufacturer
The manufacturer is Bosch Rexroth, material number R901366874.
| Hersteller-Nr | R901366874 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Country of Manufacture | Germany |
| Weight | 3.580000 |
| Zolltarifnummer | 84812010 |
| GPSR Herstellerdaten | A1-ESD equipment GmbH. Keldersstr. 15, DE-42697 Solingen, www.esd.equipment |
| Artikel-Authentizität | Original product |
| Artikelzustand | New |
| Position sensing | No |
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