Bosch Rexroth | 4WEH22C7X6EG24N9K4P45
4WEH22C7X/6EG24N9K4/P4.5
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 4WEH22C7X/6EG24N9K4/P4.5 hydraulic spool valve belongs to the WEH Directional Spool Valves series and is manufactured by Bosch Rexroth for automated fluid power systems. Its nominal size NG25 sets the flow capacity and matches mounting surfaces sized for 25 mm ports. The ISO 4401-08-08-0-05 porting pattern aligns the valve with standardized subplates for straightforward interchangeability. A DIN EN 175301-803 (K4) electrical connector forms the plug interface for the solenoid coil, while the 24 V DC supply voltage lets the solenoid draw power from common control cabinets. A concealed manual override labeled N9 allows local actuation without exposing the mechanism to contamination. Pilot actuation is provided by an integrated 4WE 6 valve that shifts the main stage. The spring-centered two-spool assembly needs at least 11 bar pilot pressure to move, and the pilot circuit may reach up to 210 bar without overstressing internal components.
Main ports p, a, and b can run at pressures up to 280 bar, so the valve can control cylinders and motors in high-pressure circuits. The t port and external Y drain withstand 250 bar to handle back-pressure conditions, while the internal y drain in DC operation is limited to 210 bar to protect sealing elements. A preload valve cracking pressure of 4.5 bar ensures the pilot supply opens only after sufficient system pressure is established. Required fluid cleanliness of 20/18/15 per ISO 4406 minimizes wear on the spool and housing. A maximum coating thickness of 100 µm guards external surfaces against corrosion without interfering with mounting fits. The calculated mean time to dangerous failure is 100 years, supporting safety-related use where long service life is expected.
Technical Specifications
Coating Thickness (max)
100 µm
Electrical Connector
DIN EN 175301-803 (K4)
Fluid Cleanliness Class
20/18/15 (ISO 4406)
Manual Override
Concealed (N9)
Max Pilot Pressure
210 bar
Max Pressure (p,a,b)
280 bar
Max Pressure (t Port, Y External)
250 bar
Max Pressure (y Internal, Dc)
210 bar
Min Pilot Pressure (2-spool, Spring)
11 bar
Mttfd
100 years
Nominal Size
NG25
Pilot Control Valve
4WE 6
Porting Pattern
ISO 4401-08-08-0-05
Preload Valve Cracking Pressure
4.5 bar
Supply Voltage
24 V DC
1620 Old Apex Road
Shipping & Payment Options
