Bosch Rexroth | 4WEH10GA4X6EW110N9TDA
4WEH10GA4X/6EW110N9TDA
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The 4WEH10GA4X/6EW110N9TDA directional spool valve is manufactured by Bosch Rexroth as part of the WEH Directional Spool Valves series and serves automation systems that require electrically piloted flow control. This model uses electro-hydraulic actuation to shift the NG10 spool, enabling 4-way routing of pressure and return lines. Three spool positions are available, and the spool is identified by symbol G. Spring-centered return brings the spool back to neutral when pilot pressure is absent. Mounting surfaces follow the ISO 4401-05-05-0-05 porting pattern, ensuring compatibility with standard subplates. A concealed N9 manual override permits local operation during setup or maintenance without exposing the mechanism.
External pilot oil is supplied through port X, and the return is routed internally to port T, simplifying external piping. Each shift moves 2.04 cm³ of pilot oil in this three-position design. Pilot operation requires at least 12 bar and can be fed with pressures up to 250 bar, whereas the main flow passages handle a continuous operating pressure of 280 bar. At that pressure the valve passes up to 130 L/min. Hydraulic cleanliness must meet ISO 4406 class 20/18/15 to protect the precision fit between spool and bore. These flow, pressure, pilot volume, and cleanliness limits establish reliable service parameters for directional control tasks in automated hydraulic equipment.
Technical Specifications
Actuation
Electro-Hydraulic
Cleanliness Class
ISO 4406 20/18/15
Manual Override
Concealed (N9)
Max Flow (g, 280 Bar)
130 l/min
Max Operating Pressure (p,a,b)
280 bar
Max Pilot Pressure
250 bar
Min Pilot Pressure (spring-centered)
12 bar
Nominal Size
NG10
Pilot Oil Return
Internal (T)
Pilot Oil Supply
External (X)
Pilot Volume (3-spool)
2.04 cm3
Porting Pattern
ISO 4401-05-05-0-05
Spool Centering
Spring-Centered
Spool Positions
3
Spool Symbol
G
Way Configuration
4-Way
1620 Old Apex Road
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