Bosch Rexroth | 4WEH16D7X6EW110N9ETDAB10V
4WEH16D7X/6EW110N9ETDA/B10/V
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The 4WEH16D7X/6EW110N9ETDA/B10/V valve belongs to the WEH Directional Spool Valves series and is produced by Bosch Rexroth for hydraulic automation tasks. It is actuated by an electro-hydraulic pilot stage, enabling electrical signals to shift the spool while hydraulic power moves the main stage. The flow section is built to NG16 size, and a rated capacity of 300 l/min allows the unit to handle high-volume circuits. The port face conforms to ISO 4401-07-07-0-05, so it mates with standardized sub-plates. Working pressure can reach 280 bar in ports P, A, and B, while port T is limited to 250 bar for tank return safety. Pilot oil is supplied internally, and the return is also routed internally, which removes the need for external pilot plumbing.
The permitted ambient temperature spans –15 °C to 50 °C, covering typical factory conditions. Hydraulic fluid may operate between –15 °C and 80 °C, and the valve accepts viscosities from 2.8 to 500 mm²/s to suit a broad range of oils. System cleanliness must meet ISO 4406 class 20/18/15 to protect the spool and pilot orifices. A concealed manual override provides local actuation during setup or power loss. A 1.0 mm throttle insert moderates pilot flow for stable shifting, and the pilot stage tolerates pressures up to 250 bar. Fluoroelastomer seals resist higher temperatures and aggressive lubricants.
Technical Specifications
Actuation
Electro-Hydraulic (WEH)
Ambient Temperature (fkm)
–15 to +50 °C
Cleanliness Class
ISO 4406 20/18/15
Hydraulic Fluid Temp (fkm)
–15 to +80 °C
Manual Override
Concealed (N9)
Max Flow (ng16)
300 l/min
Max Pilot Pressure
250 bar
Max Pressure (port T)
250 bar
Max Pressure (ports P, A, B)
280 bar
Mounting Interface
ISO 4401-07-07-0-05
Pilot Oil Return
Internal (ET)
Pilot Oil Supply
Internal (ET)
Seal Material
FKM (V)
Size
NG16
Throttle Insert
Ø 1.0 mm (B10)
Viscosity Range
2.8 to 500 mm²/s
1620 Old Apex Road
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