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Understanding the Function and Benefits of Lift Check Valves in Piping Systems

March 18, 2024 by Brina

A lift check valve is a one-way, non-return system that prevents the backflow of media. These types of valves can be constructed out of metal, plastic, or stainless steel and function to stop media from backing up into the chamber.

Lift check valves are often employed in piping systems with high turbulence levels, as well as those with low-pressure levels.

A lift check valve is a non-return valve that permits fluid flow in one direction but prevents it from flowing backward. They’re commonly used in water, gas, and steam applications to guarantee consistency of fluid direction. A Lift Check Valve is an extremely reliable and versatile product, suitable for many applications. They have high-pressure capabilities and can withstand extreme temperatures without leakage risk.

A lift check valve can be made from either forged materials, casted materials, or plastic. Those manufactured with forged metals tend to be more durable than those cast. A lift check valve is installed in a pipe system using threads at both the outlet and port, increasing its strength while preventing fluid leakage. Furthermore, these valves are designed for ease of installation, replacement, and upkeep – making them an ideal choice for industrial plants.

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Application of a Lift Check Valve

A lift check valve is designed to prevent reverse flow from entering the process stream. It does this by raising up an internal disc or ball component that allows fluid passage only in one direction, then dropping back down when the flow changes direction.

Lift check valves come in a variety of types and designs to suit a specific fluid service. Some are specifically designed for high-pressure applications where flow velocity must be kept high, such as air, gas, or steam services.

A lift check valve is an automatic valve installed within a high-flow system to prevent backflow and cross-connection. It’s commonly used in steam, air, gas, and water systems but may be found elsewhere as well.

A lift check valve’s body is similar to that of a globe valve, except it features a disc and seat instead of the traditional stem and top works. When the flow stops or reverses, the disc drops into its designated seat for sealing purposes.

These linearly stroking designs, similar to globe valves with metal or composition disks, often feature an equalizer pipe between them and downstream piping to increase disc opening in low flows. Furthermore, some incorporate springs above the disc, which provide extra closure force when it returns to its closed position.

Xintai Valve is one of the leading manufacturers of valves worldwide. Their casting ball, gate, globe, check and cast wedge valves are renowned for their superior quality, low maintenance requirements, and long service lives. Plus, they provide competitive prices as well as excellent customer service.

Since 1998, Xintai Valve has been a premier valve manufacturer with headquarters in China. Their product portfolio encompasses various types of industrial valves such as control valves, cryogenic valves, gate valves, globe valves, ball valves, check valves, butterfly valves, power station valves, oxygen valve hydraulic control valves, and threaded valves – just to name a few!