HOW DOES A BUTTERFLY VALVE WORK?

Author:     Published time:2016-12-28 15:12     Reading times:461    

A butterfly valve is a quarter-turn valve. The quarter-turn valve can be opened or closed whenever the handle is turned 90 degrees (quarter-turn). The main function of these valves is to control the flow of liquid through a pipe. Butterfly valves are mainly used in waste treatment systems. They are extremely durable and require minimal maintenance.


The butterfly valve works like any other quarter-turn valve. Understanding how a basic butterfly valve works is very simple. It can help you learn more about the components of the valve.


The butterfly valve is made of multiple parts. The most important is the metal plate. Such metal discs are discs commonly referred to as butterflies. The butterfly is mounted on the rod and it blocks the passage of fluid when the valve is closed. When the valve is fully open, the metal disk or butterfly moves a quarter-turn. The passage is unrestricted, allowing passage of fluid or air.

Essentially, the movement of the disk will depend on whether the valve is partially or completely opened or closed. If the valve is partially open, it means that the disc does not rotate for the entire quarter-turn, so it can not provide unrestricted access. This means that a smaller amount of fluid or air will pass through. However, if the valve is fully open, the disc will rotate 90 degrees, and then a greater amount of air or fluid will pass through.


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