Lift Check Valve
The use of a lift check valve is to prevent back flow into a stream. The valve is used mainly in water applications because of its design. The pressure of the media is what is used to open the lift check valve, which starts off in a normally closed (NC) position.
Furthermore a lift check valve’s process is fully automated because it depends on gravity and the pressure of the media to work. When the pressure increases and reaches its optimal rate, the disk will begin to lift off of the seat, allowing flow to pass through the valve. As the pressure decreases, the cone (assisted by gravity) will begin to return to its original position. As the cone reaches its original starting position, the seal will close and flow won’t be able to pass through the orifice.
Gravity is a large factor in operating a lift check valve, due to this, the valve must be in a horizontal position when in use.
View a specification sheet for the pictured check valve here:
Find more information on other check valves here:
Some uses of lift check valves would be
Used to prevent the back flow of condensation in steam traps.
Can use on outlets of cyclic condensate pumps.
The areas of industry where lift check valves can be of use is large and very varied.
These industries can range from:
- Domestic use
- Industrial process
- Oil and gas
- Food and beverage
- Biopharm industry
- Marine industry
We will be covering different types of valves in future posts.
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