Bosch Rexroth | 4WEH16HD7XOF6EW110N9ETDAB10V
4WEH16HD7X/OF6EW110N9ETDA/B10V
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The 4WEH16HD7X/OF6EW110N9ETDA/B10V valve belongs to the WEH Directional Spool Valves series from Bosch Rexroth and is intended to direct flow in automated hydraulic circuits. It is an electro-hydraulic unit with a 4-way configuration that shifts between two spool positions defined by symbol D to reverse actuator motion. The body size is NG16, and the mounting face follows the ISO 4401-07-07-0-05 porting pattern, allowing installation on standard subplates. A detent mechanism identified by code OF holds the spool after electrical power is removed. The hd rating lets the valve pass up to 300 l/min, while the main ports can operate safely at pressures up to 350 bar.
A high-power 6E pilot valve moves the main spool and draws its supply and return oil internally, noted by the ET designation, so no external pilot lines are required. Pilot actuation begins at 14 bar and remains within a maximum of 250 bar for reliable response. A concealed manual override marked N9 provides local shifting during commissioning or emergency conditions without exposing the control to accidental use. FKM seals coded V withstand aggressive hydraulic fluids and elevated temperatures to maintain leak-free service life. A 1.0 mm throttle insert labeled B10 restricts pilot flow to damp pressure spikes and improve shift stability.
Technical Specifications
Actuation Type
Electro-Hydraulic
Detent
Yes (OF)
Manual Override
Concealed (N9)
Max Flow (hd)
300 l/min
Max Operating Pressure
350 bar
Max Pilot Pressure
250 bar
Min Pilot Pressure
14 bar
Pilot Supply/return
Internal (ET)
Pilot Valve Type
6E High-Power
Porting Pattern
ISO 4401-07-07-0-05
Seal Material
FKM (V)
Size
NG16
Spool Positions
2
Spool Symbol
D
Throttle Insert
Ø 1.0 mm (B10)
Way Configuration
4-Way
1620 Old Apex Road
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