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VRSL single way hydraulic lock valve set with G1/4 G3/8 G3/4 G1/2 small size pilot check vlave

Hydraulic lock valves are used to prevent the flow of hydraulic fluid in a system. They are typically used in applications where it is necessary to prevent fluid flow under high pressure, such as in a hydrostatic testing system. The hydraulic lock valve is typically installed in parallel with the actuator or hydraulic cylinder and is controlled by hydraulic pressure. When the hydraulic system is functioning properly, the lock valve allows the free flow of hydraulic fluid, enabling normal operation of the actuator. However, in the event of a sudden loss of hydraulic pressure or a failure in the hydraulic system, the lock valve automatically closes to lock the actuator in its current position, preventing unintended movement or potential hazards.

The hydraulic lock valve typically consists of a valve body, a spool or poppet mechanism, and a spring. When hydraulic pressure is applied, the force overcomes the spring tension, allowing the valve to open and fluid to flow freely. However, if hydraulic pressure drops or fails, the spring force pushes the spool or poppet mechanism into a closed position, blocking the flow of hydraulic fluid and locking the actuator in place.

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