Bosch Rexroth | 4WEH16D7X6EG24N9ETS2DAB10
4WEH16D7X/6EG24N9ETS2DA/B10
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The 4WEH16D7X/6EG24N9ETS2DA/B10 directional spool valve is manufactured by Bosch Rexroth and belongs to the WEH Directional Spool Valves series. It routes hydraulic flow in automated machinery that needs reliable on-off switching and metering. The component follows size 16 mounting with a porting pattern ISO 4401-07-07-0-05 to fit standard subplates. A 4-way arrangement using spool symbol D provides two actuator paths plus pressure and tank lines. Spool movement is driven by a 24 V DC solenoid, while a concealed manual override permits service positioning without electrical power. A fixed 1.0 mm throttle insert labeled B10 conditions the pilot flow entering the main stage. The valve handles up to 250 l/min at a maximum operating pressure of 280 bar on ports P, A, and B. Recommended media viscosity spans 2.8 to 500 mm²/s, and ambient temperature may lie between –20 and +50 °C.
Pilot oil is supplied internally from the pressure port and is also returned internally, simplifying external piping. When a separate Y line is employed, the pilot return can withstand pressures up to 210 bar before discharge to tank. The pilot stage tolerates pressures as high as 250 bar, enabling use on high-pressure circuits without additional reducers. A minimum pilot pressure of 14 bar is required to move the spring-centered spool to its shifted positions. The internal pilot arrangement reduces leakage paths and keeps the envelope compact for manifold mounting. These pilot characteristics support consistent operation in hydraulic automation systems.
Technical Specifications
Ambient Temp Range (nbr)
-20 to +50 C
Manual Override
Concealed
Max Flow @ 280 Bar (symbol D)
250 l/min
Max Operating Pressure (p, A, B)
280 bar
Max Pilot Pressure
250 bar
Min Pilot Pressure (2-spool Spring)
14 bar
Pilot Oil Return
Internal
Pilot Oil Supply
Internal
Pilot Return Y Max Pressure (dc)
210 bar
Porting Pattern
ISO 4401-07-07-0-05
Size (ng)
16
Solenoid Voltage
24 V DC
Spool Symbol
D
Throttle Insert
1.0 mm (B10)
Viscosity Range
2.8 to 500 mm2/s
Way Configuration
4-Way
1620 Old Apex Road
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