Bosch Rexroth | 4WEH16J7X6EW110N9ETDAB10V
4WEH16J7X/6EW110N9ETDA/B10V
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The 4WEH16J7X/6EW110N9ETDA/B10V directional spool valve belongs to the WEH Directional Spool Valves series and is manufactured by Bosch Rexroth. It directs actuator flow in hydraulically piloted systems where compact mounting and reliable switching are required. This NG16 unit fits subplates conforming to ISO 4401-07-07-0-05 and is supplied with internal pilot oil feed (ET) and internal return (T) to simplify plumbing. Operating channels p, a, and b can be pressurized up to 280 bar, while the pilot stage tolerates 250 bar and requires at least 14 bar to shift the spool. A concealed manual override coded N9 permits local actuation during commissioning or power loss. Flow conditioning is aided by a 1.0 mm throttle insert marked B10, allowing precise damping of pilot oil surges.
In the spring-centered three-position version, the valve conducts up to 300 l/min without exceeding dynamic limits, and its pilot return circuit accepts 160 bar. Correct operation is maintained with hydraulic fluids ranging from 2.8 to 500 mm²/s and temperatures between −15 °C and +80 °C. FKM seals remain stable across this range and withstand common mineral oils and synthetic blends. System hygiene must match ISO 4406 class 20/18/15 to protect the precision-ground spool and bore surfaces from abrasion. Together these limits confirm compatibility with high-flow power units, ensure rapid response, and preserve long service intervals under demanding industrial cycles.
Technical Specifications
Cleanliness Class
ISO 4406 20/18/15
Hydraulic Fluid Temp Range
−15 to +80 °C
Manual Override
Concealed (N9)
Max Flow (3-position, Spring-centered)
300 l/min
Max Pilot Pressure
250 bar
Max Pilot Return Pressure (y Internal, Ac)
160 bar
Max Pressure (p,a,b)
280 bar
Min Pilot Pressure (x Internal)
14 bar
Mounting Interface
ISO 4401-07-07-0-05
Pilot Oil Return
Internal (T)
Pilot Oil Supply
Internal (ET)
Seal Material
FKM
Size
NG16
Throttle Insert
Ø1.0 mm (B10)
Viscosity Range
2.8 to 500 mm²/s
1620 Old Apex Road
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