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In accumulator operation the pump pressure varies and the pilot stage must not feel it. The 4WRZ10E1-50-7X/6EG24N9K4/D3M draws and relieves its pilot oil entirely externally and controls a 50 l/min nominal flow at 315 bar.
Proportional Directional Valve 4WRZ10E1-50-7X/6EG24N9K4/D3M - Bosch Rexroth R900978825
BOSCH REXROTH
Original product
Net price (excl. VAT)
€2,770.89
Item
BRR-R900978825
Manufacturer no.
R900978825
Personal expert advice
Brand new
Specialist dealer since 2009
Original product
Worldwide shipping
Product data
Manufacturer no.R900978825
Country of originGermany
ConditionNew
Artikel
BRR-R900978825
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A fully external pilot circuit makes the pilot stage independent of the main circuit. The 4WRZ10E1-50-7X/6EG24N9K4/D3M uses that and controls at 50 l/min nominal flow in size 10.
Benefits
- External pilot oil supply and external return, switches even while the main circuit is unloaded.
- 50 l/min nominal flow, 170 l/min maximum flow at 315 bar operating pressure.
- Spool symbol E1, 3 switching positions, 4 ports on the ISO 4401-05-05-0-05 interface.
- Pressure reducing valve in the pilot stage and concealed auxiliary actuation.
- 8.2 kg, 24 VDC, external electronics, NBR seals for HL hydraulic fluid.
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 | 50 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 E1 |
| 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
This variant belongs in accumulator circuits where the pump idles without pressure at times. Pilot oil then comes from the accumulator or a small auxiliary pump, so the axis stays controllable throughout. The middle step of 50 l/min covers feed and rapid traverse in one valve.
Manufacturer
Bosch Rexroth, material number R900978825. Characteristic curves, step responses and installation dimensions are given in data sheet RE 29115 on the pilot-operated proportional directional valve, the series overview in RE 07600-B.
| Hersteller-Nr | R900978825 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Country of Manufacture | Germany |
| Weight | 8.200000 |
| 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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