Bosch Rexroth | 4WEH16HC7XOF6EW110N9ETK4P45-CSA
4WEH16HC7X/OF6EW110N9ETK4/P4.5 CSA
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 4WEH16HC7X/OF6EW110N9ETK4/P4.5 CSA directional spool valve belongs to the WEH Directional Spool Valves series and is manufactured by Bosch Rexroth for hydraulic automation systems that require precise flow switching. It is built in nominal size NG16, a dimension that establishes the mounting footprint and supports a maximum flow rate of 300 l/min for medium-capacity circuits. The porting pattern follows ISO 4401-07-07-0-05 so the unit drops directly onto standardized subplates. Electrical connection is accomplished through a DIN EN 175301-803 interface, allowing rapid solenoid replacement in the field. Pilot oil is supplied internally through channel X and returns through internal T passages, eliminating external lines. To guarantee consistent actuation, the valve needs a minimum pilot pressure of 7.5 bar and safely withstands pilot pressures up to 250 bar.
The working ports p, a, and b are rated for 350 bar, enabling the spool to handle high-pressure actuation without fatigue. A preload valve cracking pressure of 4.5 bar keeps the spool centered against minor pressure fluctuations until a deliberate command is issued. When electrical power is absent, a concealed manual override offers emergency shifting while protecting the mechanism from dirt ingress. Installation uses four M10 x 60 screws that must be tightened to 58 Nm to secure the housing on the manifold. A surface coating applied to a maximum thickness of 100 µm provides corrosion resistance in humid or chemically aggressive plants. The mean time to dangerous failure is calculated at 100 years, supporting long maintenance intervals and safety performance requirements in machinery control architectures.
Technical Specifications
Electrical Connection
DIN EN 175301-803
Manual Override
Concealed
Max Flow (ng16)
300 l/min
Max Operating Pressure (p,a,b)
350 bar
Max Pilot Pressure
250 bar
Min Pilot Pressure (x Internal)
7.5 bar
Mounting Screw Size
M10 x 60
Mounting Screw Torque
58 Nm
Mttfd (weh)
100 years
Nominal Size
NG16
Pilot Oil Return
Internal (T)
Pilot Oil Supply
Internal (X)
Porting Pattern
ISO 4401-07-07-0-05
Preload Valve Cracking Pressure
4.5 bar
Surface Coating Thickness
100 µm (max)
1620 Old Apex Road
Shipping & Payment Options
