Bosch Rexroth | 4WEH32E6X6EW110N9S2DAL
4WEH32E6X/6EW110N9S2DAL
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The 4WEH32E6X/6EW110N9S2DAL directional spool valve belongs to the WEH Directional Spool Valves series and is produced by Bosch Rexroth for hydraulic automation tasks that call for high flow handling. The unit is designated size NG32, a dimensional standard that defines port spacing and permits large oil passages. It employs an E three-position spool so machinery can advance, retract, or hold according to electrical pilot commands. A maximum flow capability of 1100 l/min supports fast cylinder movement in presses or mobile equipment. Subplate mounting lets the valve be swapped without disturbing hard lines, while the ISO 4401-10-09-0-05 porting pattern ensures compatibility with common manifolds. For setup or emergency use, a concealed N9 manual override allows direct spool shifting without exposing external levers.
Working lines P, A, and B may be loaded to 280 bar, and the pilot stage accepts pressures up to 250 bar while still operating at a minimum of 8.5 bar on spring-centered configurations, so the control circuit can share the main supply or a low-pressure source. Designers can achieve the shortest switching time by providing 45 l/min of pilot flow and accommodating the 29.4 cm³ pilot volume displaced each cycle. The discharge control marked S2 offers adjustment of exhaust flow to balance response speed with pressure peaks. Six M20 × 80 bolts clamp the body to its base plate, preventing movement under shock loads and maintaining seal integrity.
Technical Specifications
Manual Override
Concealed (N9)
Max Flow (symbol E, Ng32)
1100 l/min
Max Operating Pressure (p,a,b)
280 bar
Maximum Pilot Pressure
250 bar
Min Pilot Pressure (3-pos Spring-centered)
8.5 bar
Mounting Bolts
6 x M20 x 80
Mounting Type
Subplate Mounting
Pilot Flow For Shortest Switching Time
45 l/min
Pilot Volume For Switching (3-pos)
29.4 cm3
Porting Pattern
ISO 4401-10-09-0-05
Spool Symbol
E (3-Position)
Switching Time Adjustment
Discharge Control (S2)
Valve Size
NG32
1620 Old Apex Road
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