Non-slam check valve refers to the valve that automatically opens and closes the disc depending on the flow of the medium itself to prevent medium backflow, also known as a check valve, one-way valve, counterflow valve, and back pressure valve. Non slam check valve belongs to an automatic valve. Its main function is to prevent medium backflow, reverse pump and drive motor, and discharge of container medium.
The opening and closing parts open or close by themselves depending on the flow and force of the medium, so as to prevent the reverse flow of the medium, the valve is called non slam check valve. Non-slam check valve belongs to automatic valves. It is mainly used in pipelines with a one-way flow of the medium. It allows medium to flow in one direction only to prevent accidents.
Non-slam check valves can be divided into three types according to their structure: lifting non-slam check valves, swing non-slam check valves and butterfly non-slam check valves.
1. Lifting non-slam check valve is divided into vertical and horizontal.
2. Rotary non-slam check valve can be divided into three types: single-lobe, double-lobe, and multi-lobe.
3. Butterfly non-slam check valve is straight-through.
The above non-slam check valves can be divided into threaded connection, flange connection, welding connection, and clamp connection.
According to the structure, it can be divided into three types: lifting non-slam check valve, swing non-slam check valve, and butterfly non-slam check valve. The lifting non slam check valve can be divided into two types: vertical and direct. Rotary non-slam check valve can be divided into three types: single-lobe, double-lobe, and multi-lobe. The butterfly non-slam check valves are butterfly double-lobe, butterfly single-lobe and the above non-slam check valves can be divided into four types in connection form: threaded connection, flange connection, welding, and clamping connection.