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Two axes only run in step when both valves open equally at the same command value. The internal position control of this 4WRTE provides exactly that repeatability, at 220 l/min nominal flow and 350 bar. The command value arrives as a 4...20 mA current.
Proportional Directional Valve 4WRTE25E1-220L-4X/6EG24ETK31/F1M - Bosch Rexroth R901287218
BOSCH REXROTH
Original product
Net price (excl. VAT)
€6,086.93
Item
BRR-R901287218
Manufacturer no.
R901287218
Personal expert advice
Brand new
Specialist dealer since 2009
Original product
Worldwide shipping
Product data
Manufacturer no.R901287218
Country of originGermany
ConditionNew
Artikel
BRR-R901287218
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Synchronising two cylinders rarely fails because of the controller, but because two valves open differently at the same command. The internal position control of this 4WRTE with spool symbol E1 keeps that relation fixed and sets 220 l/min nominal flow at 350 bar.
Benefits
- Internal position control makes the opening comparable from one unit to the next.
- 220 l/min nominal flow, up to 870 l/min maximum, at 350 bar operating pressure.
- Linear characteristic keeps the gain identical across the whole command range.
- Fully internal pilot routing without additional ports on the manifold.
- 4...20 mA current command, insensitive to voltage drop in the cable.
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 | 220 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 | 18 kg |
Applications
Typical duties are synchronised control on gantry presses, lifting tables and bending machines with several cylinders. Replacing a single valve within a group keeps the behaviour comparable. HL hydraulic fluid with NBR seals is used, and the weight is 18 kg.
Manufacturer
Bosch Rexroth lists this product under material number R901287218.
| Hersteller-Nr | R901287218 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Country of Manufacture | Germany |
| Weight | 3.580000 |
| 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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