What Is Trunnion-Mounted Ball Valve?

The trunnion-mounted ball valve is a quarter-turn valve. The valve is opened or closed by rotating the shaft. It fixes the ball through the bottom. So that the ball is restricted by the bearing and can only rotate, this can improve the pressure resistance of the ball valve. Therefore, the trunnion-mounted ball valve can withstand high pressure and it is suitable for the pipeline which requires high pressure.

Source: Everything Valves

Advantages Of Trunnion-Mounted Ball Valve

Trunnion-mounted ball valves are very popular in heavy industrial pipelines because they can handle a variety of fluids and are used in various industries.

Large Size Range

The trunnion-mounted ball valve can be customized in size according to your needs to perfectly match your pipeline needs.


Trunnion-mounted ball valves can be customized to achieve a variety of functions, including enhanced sealing performance, corrosion resistance and so on.

Easy To Operate And Install

The trunnion-mounted ball valve is generally flanged, so it is very easy to connect to the pipeline.
The trunnion-mounted ball valve has a two-piece structure or a three-piece structure, which are easy to disassemble and easy to maintain.

Application Of Trunnion-Mounted Ball Valve

Trunnion mounted ball valves are widely used in various working conditions, such as:

● Boiler industry
● Power generation industry
● Oil and gas industry
● Refining industry
● Chemical Industry