What should be paid attention to when using and installing the clip check valve
2021/07/14
The clamp type check valve is one of the check valves. Check valve refers to the valve which opens and closes the disc automatically by the flow of medium itself, which is used to prevent the medium from flowing backward. It is also called the check valve, one-way valve, counter-current valve and back pressure valve. Check valve belongs to an automatic valve, its main function is to prevent the medium from flowing backward, prevent the pump and drive motor from reversing, and the discharge of the container medium. Check valves can also be used to provide makeup lines to the auxiliary system in which the pressure may rise above the system pressure.
The clamp check valve is light weight, small in volume, easy to install between flange. The valve is composed of two semicircular springs and plate surface. The spring deformation fixed on the valve body with pin makes the valve plate close. The fluid pressure makes the spring open quickly, so as to protect the pipeline from the damage of water hammer.
Precautions for installation of clamp check valve:
1. When placing the pipeline, it should be noted that the direction of the flow of the check valve with the clamp type is consistent with the flow direction of the fluid;
2. Install in the vertical pipeline, for the horizontal pipeline, place the clamp type check valve vertically;
3. Use a expansion pipe between the wafer check valve and butterfly valve, and do not connect it directly with other valves;
4. In the range of valve plate operation radius, avoid adding pipe joints and blocking objects;
5. Do not install a reducer in front or behind the clamp check valve;
6. When installing the clamp check valve near the elbow, pay attention to leaving enough space;
7. When the check valve is installed at the outlet of the water pump, at least six times the valve diameter is left to ensure that the butterfly plate is subject to fluid action.
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