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

Flange ball valve is a commonly used on-off regulating valve. It has the advantages of simple structure, convenient operation, reliable sealing, and small flow loss. It is widely used in petroleum, chemical industry, electric power, metallurgy, pharmaceutical, food and other industries. The structure of the flange ball valve consists of the valve body, valve stem, valve seat, valve disc, valve cover, valve core, valve shaft, valve seat gasket, valve stem gasket, valve stem handle, etc.

The opening and closing part is a round 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 opening degree of the valve disc and controlling the flow of fluid, thereby regulating the flow. the goal of.

2. Installation requirements for flange ball valves:

1. When installing, pay attention 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 installation and tightening of the valve body to ensure the correct installation of the valve;

3. When installing, pay attention to the smooth installation of the valve body to ensure the correct installation of the valve;

4. When installing, pay attention to the cleanness of the valve body to ensure the correct installation of the valve;

5. When installing, 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 the normal operation of the valve;

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

3. Regularly check the damage of the valve body to ensure the normal operation of the valve;

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

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

In short, the flange ball valve is a commonly used regulating valve. It has the advantages of simple structure, easy operation, reliable sealing, and small flow loss. It is widely used in petroleum, chemical industry, electric power, metallurgy, pharmaceutical, food and other industries. However, in use When installing, attention should be paid to the 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.