Vertical Lift Check Valve – Inline Design, Stainless Steel / Special Alloy, Socket Weld / Threaded
Vertical Lift Check Valve is a type of check valve that opens and closes the valve according to the force applied by the spring, in order to realise the flow of medium and prevent backflow. Its design allows the valve to make a lifting movement in the vertical direction, thus controlling the direction of media flow. When the pressure of the medium in the pipeline acts on the valve, the valve will overcome the resistance of the spring and open, allowing the medium to flow in the forward direction. When the medium pressure is reduced or reverse flow, the spring will push the valve spool to the valve seat, so that the valve is closed, thus preventing the medium from flowing backwards.
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Principle of operation
The principle of operation of the Vertical Lift Check Valve is based on the vertical lifting motion of the valve and the resetting action of the spring. The specific process is as follows:
Opening process: when the pressure of the medium in the pipeline gradually increases and acts on the valve flap, the valve flap will overcome the resistance of the spring and move upward, so that the valve opens. At this time, the medium can flow smoothly through the valve to the downstream.
Close process: when the pressure of the medium in the pipeline is reduced or the medium began to reverse flow, the valve flap in the spring reset will quickly move downward to seal the valve seat, thus preventing the medium from flowing backwards.
Features and Advantages
Vertical mounting: Vertical Lift Check Valve adopts vertical mounting, compact structure and small occupied space.
Good sealing: The sealing surface between the valve flap and the valve seat is precisely processed and matched to ensure good sealing performance.
Long service life: Because the valve flap is subject to less impact during lifting and lowering, and the resetting effect of the spring helps to reduce wear and tear, the Vertical Lift Check Valve has a long service life.
Wide range of application: Vertical Lift Check Valve is suitable for a variety of media and working conditions, such as clean water, sewage, oil, steam and so on.
