Working Principle of Stainless Steel Three-Way Ball Valve

The Stainless Steel Ball Valve relies on the rotary valve to make the valve unblocked or blocked. The ball valve switch is light in weight and small in size, and can be made into a large diameter. The sealing is reliable, the structure is simple, and it is easy to maintain. The sealing surface and the spherical surface are often sealed and are not easily eroded by the medium. It has been widely used in various industries.

1. Opening process:

In the closed position, the ball is pressed against the seat by the mechanical pressure of the stem of the Ball Valve. When the handwheel rotates counterclockwise, the stem moves in the opposite direction. The angular plane at the bottom separates the ball from the seat and the stem continues to lift. , Interact with the guide pin in the spiral groove of the valve stem, so that the ball starts to rotate without friction until it reaches the fully open position, the valve stem is raised to the limit position, and the ball rotates to the fully open position.

Three-Way Ball Valve

2. Closing process:

When closing, turn the hand wheel clockwise, the valve stem begins to descend, so that the ball leaves the valve seat and start to rotate, continue to rotate the hand wheel, the valve stem is under the action of the guide pin embedded in the spiral groove on it, so that the valve stem and the ball at the same time Rotate 90°. When it is about to close, the ball has rotated 90° without contact with the valve seat. In the last few turns of the handwheel, the angular plane at the bottom of the valve stem mechanically wedges the ball to make it tightly pressed. On the valve seat to achieve a complete seal.

The above is some content about the Stainless Steel Three-Way Ball Valve, hoping to give everyone a better understanding and understanding of the three-way ball valve.