What Is The Working Principle Of The American Standard Gate Valve?

1 Piece Ball Valve is suitable for cutting off or connecting pipeline media in various system pipelines in petroleum, chemical industry, and thermal power plants. The applicable media of the American standard gate valve include water, oil, steam, acid, and sulfur-containing gas. So does anyone know how the standard American standard gate valve works?

Principle of the opening procedure of the American standard gate valve

1. Lift the valve stem to this position and rotate the ball to the fully open position.

2. In the closed position, the mechanical pressure exerted by the valve stem presses the valve body tightly against the valve seat.

3. When the handwheel rotates counterclockwise, the valve stem moves in the opposite direction, and the lower angle plane separates the ball from the valve seat.

4. The valve stem continues to rise. When the ball rubs and starts to rotate, this is the reason why the guide pins on the valve stem screw interact.

Principle of the closed position of the American standard gate valve

1. When closed, the gate valve handwheel rotates clockwise, the valve stem begins to descend, and the ball begins to rotate away from the valve seat.

2. If you keep rotating the phone, the valve stem will rotate 90 degrees at the same time as the gate and valve stem due to the action of the guide pin in the rotating groove.

3. Before closing, the gate body rotates 90 degrees, but does not touch the valve seat.

4. When turning the hand wheel, the ball is firmly pressed on the valve seat by the mechanical force at the bottom of the valve stem to achieve a sealing effect.

When everyone operates the American standard gate valve, they can operate and use the gate valve according to the above operating principle. Correct operation and use of the gate valve is very important to us.