How Does A Double Block and Bleed Trunnion Ball Valve Work?

How Does A Double Block and Bleed Trunnion Ball Valve W […]

Difference Between Trunnion Ball Valve and Floating Ball Valve

The trunnion ball valve has extra stem at the bottom of the ball, the extra stem called “trunnion”. The trunnion ball valve seat is spring loaded,the seat is pushed by the spring against the ball to realize the sealing when the valve is under low pressure rating.

Types of Trunnion Mounted Ball Valves

Trunnion mounted ball valves are available in many different configurations. They are highly customizable so you can choose the size, type, and actuator that suits your needs. Here are some common types of trunnion ball valves.

Trunnion Mounted Ball Valve Advantages

Trunnion Mounted Ball Valve has the advantage of low torque, suitable for full size application, self relief seat.

How Does A Trunnion Ball Valve Work?

When the trunnion ball valve is in closed position and there is low line pressure from up stream,the seat is pushed by the spring to enable sealing between the up stream seat and ball.

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