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This version carries a pressure reducing valve in the pilot stage, so pilot pressure stays independent of a fluctuating working pressure. Nominal flow is 85 l/min and it switches to symbol W6.
Proportional Directional Valve 4WRZ10W6-85-7X/6EG24ETK4/D3M - Bosch Rexroth R978913027
BOSCH REXROTH
Original product
Net price (excl. VAT)
€2,549.33
Item
BRR-R978913027
Manufacturer no.
R978913027
Personal expert advice
Brand new
Specialist dealer since 2009
Original product
Worldwide shipping
Product data
Manufacturer no.R978913027
Country of originGermany
Customs tariff number84812010
ConditionNew
Artikel
BRR-R978913027
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When system pressure swings, internal pilot supply makes pilot pressure swing with it, and the main spool follows. A built in pressure reducing valve holds that pressure steady. This size 10 valve works at a nominal flow of 85 l/min to symbol W6 at up to 315 bar.
Benefits
- Pressure reducing valve in the pilot stage, keeping pilot pressure constant
- Nominal flow 85 l/min, maximum flow 170 l/min
- Symbol W6 with 4 ports in 3 switching positions
- Internal pilot oil supply and internal pilot oil return
- Driven from external electronics, so ramps and gain can be set
- Operating pressure up to 315 bar, NBR seals, mass 8.2 kg
Technical data
| Connection diagram | ISO 4401-05-05-0-05 |
| Max. flow | 170 l/min |
| Product family | 4WRZ(E) |
| Type of connection | Subplate mounting |
| Nominal flow | 85 l/min |
| Supply voltage | 24 VDC |
| 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. | 315 bar |
| Size | 10 |
| Seals | NBR |
| Electrical connector | Connector, 3-pole (2 + PE) |
| Type of actuation | Electrical with external electronics |
| Weight | 8.2 kg |
Applications
The valve is used in circuits with strongly varying working pressure, for instance on presses and test rigs. The steady pilot level keeps switching times stable across the whole pressure range.
Manufacturer
Bosch Rexroth lists this item of product family 4WRZ(E) under material number R978913027. Dimensional drawings, characteristic curves and installation notes are given in data sheet RE 29115, the series overview is RE 07600-B.
| Hersteller-Nr | R978913027 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Country of Manufacture | Germany |
| Weight | 8.200000 |
| Zolltarifnummer | 84812010 |
| 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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