Bosch Rexroth | H-4WEH32G6X6EW110N9K4V
H-4WEH32G6X/6EW110N9K4/V
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The H-4WEH32G6X/6EW110N9K4/V valve belongs to Bosch Rexroth's WEH Directional Spool Valves series and directs hydraulic flow in automation circuits. It employs a 4-way path arrangement to handle supply and return lines while maintaining three discrete spool positions for actuating cylinders and motors. The spool with symbol G is sized for NG32 envelopes, giving large port passages that match the 800 l/min flow limit at 210 bar. At higher system pressures, flow capability decreases to 650 l/min at 280 bar and 450 l/min at 350 bar, which protects the seat surfaces from erosion. A concealed N9 manual override lets technicians shift the spool during commissioning without exposing the mechanism. The solenoid assembly operates on 110 V AC, supporting direct connection to common industrial control transformers.
The rated operating pressure for ports P, A, and B reaches 350 bar so the valve can work in high-pressure mobile and industrial systems. Port T is limited to 250 bar, and the external drain port Y is limited to 160 bar to prevent seal overload on the tank and pilot circuits. Pilot control requires at least 8.5 bar and must not exceed 250 bar, ensuring consistent force on the pilot poppet without damaging diaphragms. The electrical interface follows DIN EN 175301-803-K4, which standardizes the connector footprint for quick replacement in service. Fluid cleanliness must meet ISO 4406 class 20/18/15 to avoid spool sticking and premature wear. Combined, these parameters define a directional valve that integrates safely into high-flow hydraulic manifolds.
Technical Specifications
Cleanliness Class (iso 4406)
20/18/15
Electrical Connection
DIN EN 175301-803 (K4)
Flow Limit (symbol G, 210 Bar)
800 l/min
Flow Limit (symbol G, 280 Bar)
650 l/min
Flow Limit (symbol G, 350 Bar)
450 l/min
Manual Override
Concealed (N9)
Max Operating Pressure (p,a,b)
350 bar
Max Pressure Port T (ng32)
250 bar
Max Pressure Port Y (external, Ac)
160 bar
Maximum Pilot Pressure
250 bar
Minimum Pilot Pressure
8.5 bar
Size (ng)
32
Solenoid Voltage
110 V AC
Spool Positions
3
Spool Symbol
G
Way Configuration
4-Way
1620 Old Apex Road
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