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Moving an open-loop axis to closed-loop control calls for position feedback rather than a fixed characteristic. This valve measures spool travel internally, handles 220 l/min nominal at 350 bar and accepts the existing ±10 V command value.
Proportional Directional Valve 4WRTE25V1-220L-4X/6EG24EK31/A1M - Bosch Rexroth R900962046
BOSCH REXROTH
Original product
Net price (excl. VAT)
€7,036.25
Item
BRR-R900962046
Manufacturer no.
R900962046
Personal expert advice
Brand new
Specialist dealer since 2009
Original product
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Product data
Manufacturer no.R900962046
Country of originGermany
ConditionNew
Artikel
BRR-R900962046
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When an open-loop valve is replaced by a closed-loop one the wiring stays the same and the accuracy changes. Internal position feedback corrects every deviation in spool travel here, at 220 l/min nominal flow and 350 bar.
Benefits
- Internal position feedback replaces the fixed characteristic of an open-loop valve
- Command value ±10 V, already available in most existing control systems
- Nominal flow 220 l/min, up to 870 l/min through the valve at 350 bar
- Internal pilot oil supply with external return, V1 spool
- Port pattern ISO 4401-08-08-0-05, so it fits existing size 25 subplates
- Weight 17.98 kg, 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 | 220 l/min |
| Supply voltage | 24 VDC |
| 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 V1 |
| 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 |
Application
The variant is fitted when modernising test rigs, presses and forming machines whose positioning accuracy no longer suffices. The port pattern is unchanged, so the existing subplate can stay. Operation is on HL hydraulic fluid with NBR seals.
Manufacturer
Bosch Rexroth lists this valve under material number R900962046.
| Hersteller-Nr | R900962046 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Country of Manufacture | Germany |
| Weight | 17.980000 |
| GPSR Herstellerdaten | Bosch Rexroth AG, Zum Eisengießer 1, DE-97816 Lohr am Main, www.boschrexroth.com |
| Artikel-Authentizität | Original product |
| Artikelzustand | New |
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