Bosch Rexroth | 4WEH16J7X6EG24N9ETK4B10V
4WEH16J7X/6EG24N9ETK4/B10V
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The 4WEH16J7X/6EG24N9ETK4/B10V directional valve belongs to the WEH Directional Spool Valves series from Bosch Rexroth and serves to shift hydraulic flow between actuator ports in automated machinery. The unit carries a J spool configuration that provides three discrete flow positions, and a spring-centered mechanism returns the spool to neutral when power is removed. Electrical actuation is supplied by a 24 V DC pilot coil that mates with a DIN EN 175301-803 form K4 connector, allowing straightforward installation in control cabinets. Internal pilot oil supply from port P and internal pilot oil return to tank minimize external lines, while a pilot volume of 5.72 cm³ defines the oil required for each shift. A throttle insert with a 1.0 mm orifice dampens pilot flow to control spool speed. The sub-plate interface follows the ISO 4401-07-07-0-05 pattern so the valve fits common NG16 manifolds without adapter blocks.
The valve body is built to the NG16 size class, giving passage dimensions compatible with medium-flow systems. Continuous service pressure reaches 280 bar on the working ports and 250 bar on the pilot circuit, supporting high-force cylinders and motors. A concealed manual override, coded N9, lets maintenance staff mechanically shift the spool when electrical power is absent. Fluid entering the valve must meet ISO 4406 cleanliness level 20/18/15 to protect precision lands from wear, and FKM seals resist aggressive hydraulic oils and elevated temperatures. The design achieves a mean time to dangerous failure of 100 years, contributing to long equipment uptime in production lines.
Technical Specifications
Centering
Spring-Centered
Coil Voltage (pilot)
24 V DC
Electrical Connection
DIN EN 175301-803 (K4)
Fluid Cleanliness
ISO 4406 20/18/15
Manual Override
Concealed (N9)
Max Operating Pressure (p,a,b)
280 bar
Max Pilot Pressure
250 bar
Mttfd
100 years
Pilot Oil Return
Internal (T)
Pilot Oil Supply
Internal (P)
Pilot Volume (3-pos, Spring)
5.72 cm3
Porting Pattern
ISO 4401-07-07-0-05
Seal Material
FKM (V)
Size
NG16
Spool Symbol
J
Throttle Insert
Ø1.0 mm (B10)
1620 Old Apex Road
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