Rubber-coated check valve manufacturers take you to understand the working principle of check valves
time：
2021-09-15
The Rubber-coated check valve manufacturer tells you that the check valve is an automatic opening and closing valve that does not require manpower or other actions. It relies on the flow of the pipeline medium itself to open or close the valve.
The Rubber-coated check valve manufacturer tells you that the check valve is an automatic opening and closing valve that does not require manpower or other actions. It relies on the flow of the pipeline medium itself to open or close the valve. It is mainly used to prevent the reverse flow control of the pipeline medium. , Gu is also known as a check valve or a reverse flow valve. The check valve has only one flow direction, that is, it can only flow along the water inlet and cannot go backwards. When the medium flows backwards, the disc is closed. The Rubber-coated check valve manufacturer tells you that the check valve is generally installed to prevent the backflow of the medium when the valve is not closed. A check valve will be installed at the outlet of a common water pump to prevent high-pressure water from flowing backward into the pump, causing the impeller or other parts of the pump to loosen or be damaged due to hydraulic impact, resulting in accidents. In short, check valves are used in pipelines or equipment that prevent medium from flowing backwards.
The rubber-coated check valve manufacturer tells you that the principle of the check valve is very simple. The medium flows in in the specified direction. When the flow pressure exceeds the opening pressure of the check valve, the valve disc is pushed open under the action of the fluid pressure, thus connecting Circulation of pipeline media. Conversely, when the medium in the pipeline flows backwards, the disc is pressed against the body of the check valve under the push of the fluid pressure, and the valve is closed at this time, thereby cutting off the flow of the medium in the pipeline. And the greater the pressure of the backflow medium, the tighter the valve disc of the valve closes, the better the sealing effect, completely eliminating the possibility of backflow of the medium.
According to the different structural forms, the check valve can be divided into three types: lifting type, swing type and butterfly type, and the lifting type can be divided into two types: vertical type and horizontal type, and its action mode is to move along the axis. Rubber-coated check valve manufacturers tell you that the swing type can be divided into single valve type, double valve type and multi valve type, and their working method is to rely on the rotation of the center of gravity. The thin butterfly structure is a straight-through flow channel, which is sealed by the spring on the hinge pressing on the valve seat.
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