Classification Of Non Slam Check Valve
Non slam check valve is mainly used to prevent medium backflow in pipes. Bottom valves and duckbill valves are also non-slam check valves.
Non slam check valve can be divided into lifting type, swing type and dish type.
(1)The lifting structure can be divided into two types: vertical and horizontal. The lifting structure moves along the axis.
Examples: 1. The lifting silent non slam check valve is used in the pipeline with high-quality requirements for water supply and drainage works and can be installed at the outlet of the pump with relatively high pressure (PN2.5Mpa), which is an important product of waterproof impact non slam check valve.
(2)Lifting silencing non slam check valve is suitable for high-rise building water supply and drainage system and pump outlet, not suitable for sewage pipeline occasions.
Horizontal non slam check valve is suitable for diving, drainage and sewage pumps, especially for sewage and sludge systems.
The swing type is divided into single-lobe type, double-lobe type and multi-lobe type. The structure of the swing type is based on the rotation of the centre of gravity.
Examples: 1. Selected rubber non-slam check valve is not suitable for sewage pipelines with more sediments when it is used in urban water pipeline system.
(3)Rotary single-lobe non-slam check valve has the widest application range and can be installed in water supply and drainage, petroleum, chemical, metallurgical, industrial and other pipelines. It is most suitable for space-limited occasions.
The disc structure is straight-through.
Example:
Disc double-lobe non-slam check valve is mainly used in high-rise building water supply pipeline, fluid network containing corrosive media and sewage.
2. Rotary single-lobe non-slam check valve has the widest application range and can be installed in water supply and drainage, petroleum, chemical, metallurgical, industrial and other pipelines. It is most suitable for space-limited occasions.
3. Horizontal non slam check valve is suitable for diving, drainage and sewage pumps, especially for sewage and sludge systems.
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