Bosch Rexroth | 4WEH16J7X6EW110N9ETS2DLB10V
4WEH16J7X/6EW110N9ETS2DL/B10V
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The 4WEH16J7X/6EW110N9ETS2DL/B10V valve belongs to the WEH Directional Spool Valves series and is manufactured by Bosch Rexroth for automated hydraulic circuits. It is built in size NG16, and its three spring-centered spool positions route flow to extend, retract, or hold an actuator. The main ports tolerate operating pressures up to 280 bar, while a rated flow capacity of 300 l/min for spool symbol J keeps pressure loss low in high-volume lines. Pilot oil is taken internally from port P, eliminating external pilot plumbing, and a concealed manual override (N9) allows local shifting during setup or power loss. The spool requires at least 14 bar pilot pressure to move from center, and a 1.0 mm throttle insert meters pilot oil to damp rapid transients and improve controllability.
The pilot stage withstands pressures up to 250 bar, yet only 4.5 bar is needed at port P for reliable internal piloting once flow is available. Subplate mounting simplifies replacement; the body seats on an ISO 4401-07-07-0-05 interface and is secured with four M10 × 60 screws of property class 10.9 tightened to 58 Nm to maintain gasket compression. An FKM seal set resists heat and common hydraulic fluids, extending service life. Switching time is adjustable through the discharge control option S2, giving users a means to match spool acceleration and deceleration to system dynamics without adding external damping components.
Technical Specifications
Manual Override
Concealed (N9)
Max Flow (symbol J)
300 l/min
Max Operating Pressure (p,a,b)
280 bar
Max Pilot Pressure
250 bar
Min Pilot Pressure (spring-centered)
14 bar
Min Pressure At Port P (x Internal)
4.5 bar
Mounting Screw Torque
58 Nm
Mounting Screws
M10 × 60 (10.9)
Mounting Type
Subplate Mounting
Pilot Oil Supply
Internal (from P)
Porting Pattern
ISO 4401-07-07-0-05
Seal Material
FKM
Size
NG16
Spool Positions
3 (Spring-Centered)
Switching Time Adjustment
Discharge Control (S2)
Throttle Insert
1.0 mm
1620 Old Apex Road
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