What is a flanged ball valve? Working principle of flange ball valve

Flange ball valve is a commonly used switch control valve, which has the advantages of simple structure, convenient operation, reliable sealing, and low flow loss. It is widely used in industries such as petroleum, chemical, power, metallurgy, pharmaceuticals, and food. The structure of a flanged ball valve consists of a valve body, valve stem, valve seat, valve disc, valve cover, valve core, valve shaft, valve seat gasket, valve stem gasket, valve stem handle, etc.

1. The working principle of flange ball valve is:

The opening and closing part is a circular sphere that can be opened or closed by rotating 90 °. When the valve stem handle rotates, the valve stem drives the valve core to move up and down, thereby changing the degree of opening of the valve disc, controlling the flow of fluid, and achieving the purpose of regulating flow.



2. Installation requirements for flange ball valves:

1. During installation, attention should be paid to the installation position of the valve body to ensure the correct installation of the valve;

2. During installation, attention should be paid to the tightening of the valve body to ensure the correct installation of the valve;

3. During installation, attention should be paid to the flatness of the valve body to ensure the correct installation of the valve;

4. During installation, attention should be paid to the cleanliness of the valve body to ensure the correct installation of the valve;

5. During installation, attention should be paid to the stable installation of the valve body to ensure the correct installation of the valve.



3. Maintenance of flange ball valves:

1. Regularly check the sealing of the valve body to ensure its normal operation;

2. Regularly check the lubrication of the valve body to ensure its normal operation;

3. Regularly inspect the valve body for damage to ensure its normal operation;

4. Regularly check the cleanliness of the valve body to ensure its normal operation;

5. Regularly inspect the installation of the valve body to ensure its normal operation.



In short, flanged ball valves are a commonly used regulating valve with advantages such as simple structure, easy operation, reliable sealing, and low flow loss. They are widely used in industries such as petroleum, chemical, power, metallurgy, pharmaceuticals, and food. However, when using them, attention should be paid to installation specifications to ensure the correct installation of the valve, as well as regular inspection and maintenance to ensure the normal operation of the valve.