Unveiling the Engineering Marvel: Trunnion Mounted Ball Valves Explained

Trunnion mounted ball valves represent a specialized category within the realm of industrial valves, designed with unique features to cater to specific operational needs. These valves derive their name from the trunnion, a fixed pin or shaft upon which the ball is mounted, allowing it to rotate within the valve body. Here's a breakdown of their structure and functionality:

Trunnion Mounted Ball Valves Freture Techno

Anatomy of Trunnion Mounted Ball Valves

Trunnion Design: Unlike floating ball valves where the ball floats, trunnion mounted ball valves have the ball fixed to a trunnion. This setup provides increased stability and support, especially in high-pressure applications.

Ball Construction: The ball in these valves typically features multiple seats, enhancing the sealing capability and ensuring tight shut-off, even in high-pressure environments.

Valve Body: The valve body accommodates the trunnion-mounted ball and provides the necessary channels for fluid flow regulation. It's often designed to withstand high pressures and harsh operating conditions.

Functionality and Applications

Enhanced Stability: Trunnion mounted ball valves are known for their stability, making them suitable for high-pressure applications in industries like oil and gas, petrochemicals, and refining.

Precise Flow Control: Their design allows for precise flow control, making them ideal for processes that demand accurate regulation of fluid flow rates.

Durability and Reliability: The construction and materials used in these valves contribute to their durability, ensuring prolonged service life and minimal maintenance requirements.

Operational Mechanism

When the valve is in the open position, the trunnion-mounted ball rotates within the valve body, allowing fluid to flow through the passageway. Closing the valve involves rotating the ball to block the flow, using the trunnion as the axis of rotation. This mechanism provides reliable shut-off and control over the fluid flow.

Conclusion

Trunnion mounted ball valves, with their unique construction and operational features, cater to industries requiring high-performance valves for demanding applications. Their stability, precise control, and durability make them indispensable in ensuring safe and efficient operations across various sectors, where stringent flow control and shut-off capabilities are paramount.