Bosch Rexroth | 4WEH32E6X6EW110N9TS2DA
4WEH32E6X/6EW110N9TS2DA
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The 4WEH32E6X/6EW110N9TS2DA directional valve belongs to the WEH Directional Spool Valves series and is built by Bosch Rexroth. Designed for hydraulic automation, it redirects pressure fluid between system lines by shifting a four-way spool using electro-hydraulic actuation. The unit is sized NG32 to match high-flow circuits and follows the ISO 4401-10-09-0-05 porting pattern for manifold mounting. A 110 V AC 50/60 Hz coil energizes the pilot stage, while a concealed N9 manual override lets maintenance personnel move the spool without power. The valve operates reliably when oil cleanliness is maintained at ISO 4406 class 20/18/15, preventing wear in the precision metering edges.
Pressure limits are set at 280 bar for ports P, A, and B, 250 bar for port T, and 250 bar for the pilot supply to ensure safe operation across the main and control stages. Pilot oil enters externally through port X and returns internally to port T, eliminating the need for separate drain plumbing. Six M20 × 80 mounting screws compliant with ISO 4762 secure the body to the manifold, and each screw must be tightened to 340 Nm to preserve seal integrity. This fastening method holds the assembly against the dynamic loads generated during shifting and keeps the valve aligned within the hydraulic stack.
Technical Specifications
Actuation
Electro-Hydraulic
Cleanliness Class
ISO 4406 20/18/15
Coil Voltage
110 V AC 50/60 Hz
Manual Override
Concealed (N9)
Max Operating Pressure (p, A, B)
280 bar
Max Operating Pressure (port T)
250 bar
Max Pilot Pressure
250 bar
Mounting Screw Quantity
6
Mounting Screws
M20 x 80 (ISO 4762)
Nominal Size
NG32
Pilot Oil Return
Internal To T
Pilot Oil Supply
External Via X
Porting Pattern
ISO 4401-10-09-0-05
Screw Tightening Torque
340 Nm
Valve Ways
4
1620 Old Apex Road
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