Bosch Rexroth | 4WEH16J7X6EG24N9DK24L2
4WEH16J7X/6EG24N9DK24L2
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The 4WEH16J7X/6EG24N9DK24L2 valve is produced by Bosch Rexroth for the WEH Directional Spool Valves series and is intended to route hydraulic oil in automated machinery. It is built in nominal size NG16 so it fits manifolds designed for medium-capacity actuators. The J spool can pass up to 300 l/min, enabling high-speed cylinder operation, while a maximum operating pressure of 280 bar at ports P, A, and B supports robust power transmission. Actuation is provided by a high-power 4WE6 pilot stage that maintains fast response under varying supply conditions. The pilot supply may reach 250 bar, and the pilot return line withstands 210 bar to keep control forces predictable. A concealed N9 manual override permits manual shifting during setup or emergencies without exposing internal components to debris.
The coil is rated at 24 V DC so it can be powered from common machine control circuits. Connection to a subplate follows ISO 4401-07-07-0-05, and four M10×60 ISO 4762 screws secure the body; each screw must be tightened to 58 Nm to preserve gasket integrity. Tank port pressure is allowed up to 250 bar, letting the unit handle elevated back pressure in regenerative loops. System oil should meet ISO 4406 cleanliness class 20/18/15 to avoid spool sticking. Long-term reliability is reflected by an MTTFd of 100 years, contributing to safety calculations in machinery designs. The internal gallery follows a 4-way, 3-position layout so actuators can be driven forward, reversed, or held in the center position.
Technical Specifications
Cleanliness Class
ISO 4406 20/18/15
Coil Voltage
24 V DC
M10 Screw Tightening Torque
58 Nm
Manual Override
Concealed (N9)
Max Flow (ng16, J Spool)
300 l/min
Max Operating Pressure (p, A, B)
280 bar
Max Pilot Pressure
250 bar
Max Pilot Return Pressure (y, Dc)
210 bar
Max Tank Port Pressure (t)
250 bar
Mounting Interface
ISO 4401-07-07-0-05
Mounting Screws
4×M10×60 (ISO 4762)
Mttfd (type Weh)
100 years
Nominal Size
NG16
Pilot Valve Type
4WE6 (High-Power 6E)
Spool Symbol
J
Way Configuration
4-way, 3-position
1620 Old Apex Road
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