Bosch Rexroth | 4WEH22D7X6EW110N9ETS2K4
4WEH22D7X/6EW110N9ETS2K4
Request a Quote
Call For Quote
What Happens Next?
Email Confirmation
You will get an email confirming we have received your inquiry.
Dedicated Account Manager
A team member will review your request and be in touch concerning any questions or specifications.
Quote Delivered
You will receive a comprehensive quote tailored to your specific needs.
The 4WEH22D7X/6EW110N9ETS2K4 valve is part of the WEH Directional Spool Valves series manufactured by Bosch Rexroth for controlling flow in hydraulic automation systems. It relies on electro-hydraulic actuation, allowing an electrical signal to shift the main stage without direct mechanical input. The valve employs a 4/2 D-spool so two discrete flow states can be selected in a circuit. Nominal size NG25 (W.H 22) provides the passage dimensions needed for medium-flow machinery. A high-power 6E pilot control valve delivers the pilot energy required for fast spool movement. Pilot oil is supplied internally, and the return path is also internal through port T, which minimizes external piping. Ports p, a, and b withstand operating pressures up to 280 bar to suit high-pressure loops, while the pilot stage tolerates up to 210 bar to keep actuation stable.
A minimum pilot pressure of 11 bar is necessary for the spring-centered version so that shifts complete reliably at low system pressure. The hydraulic medium must meet ISO 4406 cleanliness class 20/18/15 to maintain spool accuracy and service life. Electrical power reaches the coil through a DIN EN 175301-803 plug coded K4, enabling straightforward field connection. A concealed N9 manual override gives technicians a way to move the spool during commissioning or power loss. The body mounts on an ISO 4401-08-08-0-05 interface, secured by six M12 × 60 screws to ISO 4762-10.9. Each screw is tightened to 100 Nm so the joint stays leak-free under load variations. Switching time is modified with an S2 discharge setting, letting users match response speed to system requirements.
Technical Specifications
Actuation Type
Electro-Hydraulic
Cleanliness Class
ISO 4406 (c) 20/18/15
Electrical Connection
DIN EN 175301-803 (K4)
Manual Override
Concealed (N9)
Max Operating Pressure (p,a,b)
280 bar
Max Pilot Pressure
210 bar
Min Pilot Pressure (2-pos Spring)
11 bar
Mount Screw Torque
100 Nm
Mounting Interface
ISO 4401-08-08-0-05
Mounting Screws
6 × M12 × 60 (ISO 4762-10.9)
Nominal Size
NG25 (W.H 22)
Pilot Control Valve
High-Power (6E)
Pilot Oil Return
Internal (Port T)
Pilot Oil Supply
Internal
Spool Configuration
4/2 (D-Spool)
Switching Time Adjustment
S2 (Discharge)
1620 Old Apex Road
Shipping & Payment Options
