A Trunnion Mounted Ball Valve is a high-performance industrial valve designed for high-pressure, large-diameter, and critical service pipelines. Unlike floating ball valves, the ball in a trunnion mounted ball valve is firmly supported by trunnions at both the top and bottom, ensuring stable operation, lower torque, and reliable sealing. This article explains what a trunnion mounted ball valve is, how it works, its advantages, applications, and how it compares with floating ball valves—helping engineers, buyers, and project managers make informed decisions.

Valves are essential components in modern industrial systems. They play a critical role in flow control, ensuring the safe and efficient transport of liquids, gases, and other media through pipelines and equipment. From high pressure applications to precise fluid management, valves such as gate valves, butterfly valves, ball valves, and check valves are widely used across numerous industries.

In fluid control systems where performance, durability, and efficiency are critical, the double eccentric butterfly valve has emerged as a dependable choice. Also referred to as the double offset butterfly valve, this type of eccentric butterfly valve offers improved functionality over the traditional concentric butterfly valve.