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When pilot oil return has to reach the tank without back pressure, this is the version to pick. The pilot-operated size 16 valve takes pilot oil internally, returns it externally, reads ±10 V and releases 180 l/min at up to 350 bar.
Proportional Directional Valve 4WRZE16W6-180-7X/6EG24N9EK31/A1D3M - Bosch Rexroth R901428551
BOSCH REXROTH
Original product
Net price (excl. VAT)
€3,418.20
Item
BRR-R901428551
Manufacturer no.
R901428551
Personal expert advice
Brand new
Specialist dealer since 2009
Original product
Worldwide shipping
Product data
Manufacturer no.R901428551
Country of originGermany
Customs tariff number84812010
ConditionNew
Artikel
BRR-R901428551
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A separately routed pilot oil return keeps pressure surges in the tank gallery away from the pilot valve. That is exactly how this size 16 proportional directional valve is built: pilot oil taken internally, return routed externally, ±10 V command value, 180 l/min nominal flow.
Key benefits
- External pilot oil return protects the pilot stage from pressure peaks in a shared tank gallery.
- Internal pilot oil supply saves the extra pressure line to the control circuit.
- 180 l/min nominal flow and 460 l/min peak flow at 350 bar operating pressure.
- A signed ±10 V command value covers both directions of travel and is handled by the on-board electronics.
- 12.56 kg, spool symbol W6, NBR seals, ISO 4401-07-07-0-05 connection pattern.
Technical data
| Conformity description | UKCA - Electromagnetic compatibility (EMC) SI2016/1091 |
| Connection diagram | ISO 4401-07-07-0-05 |
| Max. flow | 460 l/min |
| Product family | 4WRZ(E) |
| Type of connection | Subplate mounting |
| Nominal flow | 180 l/min |
| Conformity | UKCA |
| 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 W6 |
| Operating pressure, max. | 350 bar |
| Size | 16 |
| Seals | NBR |
| Electrical connector | Connector, 7-pole (6 + PE) |
| Type of actuation | Electrical with on-board electronics |
| Weight | 12.56 kg |
Applications
This combination is chosen when several valves share one tank gallery and back pressure builds up there. Applications include press drives, hoists and test rigs with changing loads. The external return needs its own line to tank, kept as short as possible.
Manufacturer
Bosch Rexroth, material number R901428551, product family 4WRZ(E). Data sheet RE 29115 states the permitted return pressure and characteristic curves, RE 07600-B gives the range overview.
| Hersteller-Nr | R901428551 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Country of Manufacture | Germany |
| Weight | 12.560000 |
| 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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