Bosch Rexroth | H-4WEH16J7X6EW110N9K4
H-4WEH16J7X/6EW110N9K4
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The H-4WEH16J7X/6EW110N9K4 valve is produced by Bosch Rexroth for the WEH Directional Spool Valves series and serves to route hydraulic flow in automated machinery. It is built to nominal size 16 so it pairs with mid-frame manifolds, and its four-way configuration offers one pressure port, one tank port, and two work lines for bidirectional actuators. A J-coded spool defines the flow cross-sections that manage acceleration and deceleration of cylinders. Pilot oil arrives externally through port X, letting the main stage shift independently of system pressure. Springs return the control spool to center when the pilot signal is released, an action that begins once pilot pressure reaches 14 bar and remains functional up to 250 bar. When fully energized the valve passes as much as 300 l/min, supporting rapid cycle times in presses and transfer lines.
The mounting interface follows the ISO 4401-07-07-0-05 pattern, placing all service and pilot passages on one face for leak-free stacking. Working ports P, A, and B sustain continuous pressures to 350 bar, while port T is limited to 250 bar and the case-drain port Y carries up to 160 bar, enabling safe return of pilot leakage. System oil must meet ISO 4406 cleanliness class 20/18/15 to protect the finely ground lands from scoring. Electrical power reaches the two solenoids through a DIN EN 175301-803 type K4 connector, and a concealed manual override lets technicians shift the spool during setup or fault recovery without exposing moving parts. The assembled unit weighs 8.9 kg, so mounting brackets must support that load and prevent vibration during continuous duty.
Technical Specifications
Cleanliness Class
ISO 4406 (c) 20/18/15
Control Spool Return
By Springs
Electrical Connection
DIN EN 175301-803 (K4)
Manual Override
Concealed
Max Flow (symbol J, X External)
300 l/min
Max Operating Pressure (p, A, B)
350 bar
Max Pilot Pressure
250 bar
Max Port T Pressure
250 bar
Max Port Y Pressure (ac)
160 bar
Min Pilot Pressure (spring-centered)
14 bar
Nominal Size
16
Pilot Oil Supply
X External
Porting Pattern
ISO 4401-07-07-0-05
Spool Symbol
J
Way Configuration
4-Way
Weight (two Solenoids)
8.9 kg
1620 Old Apex Road
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