Check valves type WS

The check valves type” WS” are valves with threaded “BSP” ports for mounting in-line on hydraulic lines in any position.
They allow the flow to pass freely in one direction, blocking it in the opposite direction.
In rest conditions, the valve poppet is kept closed by a spring.
Fluid flowing through the valve overcomes the resistance of the spring and causes the poppet to lift. This allows free flow.
In the opposite direction the spring and the fluid push the poppet into the seat in the housing and close the connection.