Bosch Rexroth | 4WEH16F7X6EW110N9K4P4-5V
4WEH16F7X/6EW110N9K4/P4 5V
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The 4WEH16F7X/6EW110N9K4/P4 5V valve belongs to the WEH Directional Spool Valves series and is produced by Bosch Rexroth. It directs hydraulic flow in automation circuits and employs electro-hydraulic actuation to shift the spool under command signals. The size NG16 interface and 4-way flow path accommodate medium frame manifolds where bidirectional cylinder control is needed. Pilot oil is supplied externally and is also returned externally, allowing the main ports to handle full system pressure without back pressure from the pilot stage. Smooth engagement is maintained because the spool is returned by springs once pilot pressure is removed, with a minimum pilot pressure of 14 bar initiating movement and a permissible pilot ceiling of 250 bar. A DIN EN 175301-803 K4 connector provides the electrical interface for the pilot solenoid, keeping wiring consistent with common industrial harnesses.
The valve handles a maximum operating pressure of 280 bar on ports p, a, and b, and it delivers up to 170 l/min when energized with symbol F at that pressure, supporting high-demand actuators. Pressure in port y is limited to 160 bar so the external drain line can protect the pilot cover seals. Installation follows the ISO 4401-07-07-0-05 porting pattern, which matches standard subplates for quick replacement work. When flow is re-established, the preload valve opens at a cracking pressure of 4.5 bar to prevent shock during spool transition. A concealed manual override identified by code N9 lets maintenance staff reposition the spool without energizing the solenoid. The FKM seal package resists high-temperature fluids and aggressive additives, extending service intervals.
Technical Specifications
Actuation
Electro-Hydraulic
Control Spool Return
By Springs
Electrical Connection
DIN EN 175301-803 (K4)
Manual Override
Concealed (N9)
Max Flow (280 Bar, Symbol F)
170 l/min
Max Operating Pressure (p,a,b)
280 bar
Max Pilot Pressure
250 bar
Max Pressure At Y (external, Ac)
160 bar
Minimum Pilot Pressure
14 bar
Pilot Oil Return
External
Pilot Oil Supply
External
Porting Pattern
ISO 4401-07-07-0-05
Preload Valve Cracking Pressure
4.5 bar
Seal Material
FKM
Size
NG16
Way Configuration
4-Way
1620 Old Apex Road
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