Working principle and installation details of stainless steel three-way ball valve-Environmental Protection Online

Stainless steel three-way ball valve(hereinafter referred to as three-way ball valve) adopts a four sided valve seat and integrated structure, suitable for the convergence, diversion and distribution of liquids, gases, powders and other media. It is easy to operate and maintain, and is suitable for convergence or diversion devices on pipelines, storage tanks, containers and equipment used to transport various gases, liquids, powders and other media in industries such as petroleum, chemical, and power.

Stainless steel three-way ball valve switch is lightweight, small in size, can be made into large diameters, reliable in sealing, simple in structure, easy to maintain, and the sealing surface and spherical surface are often in a closed state, which is not easily eroded by the medium. It has been widely used in various industries.

1、 Opening process of stainless steel three-way ball valve:

A、 In the closed position, the ball is tightly pressed against the valve seat by the mechanical pressure of the valve stem;

B、 When the handwheel is turned counterclockwise, the valve stem moves in the opposite direction, and its bottom angular plane causes the ball to detach from the valve seat;

C、 The valve stem continues to lift and interacts with the guide pin in the spiral groove of the valve stem, causing the ball to rotate frictionlessly;

D、 Until it reaches the fully open position, the valve stem is lifted to the limit position, and the ball rotates to the fully open position.

2、 Closing process of stainless steel three-way ball valve:

A、 When closing, rotate the handwheel clockwise and the valve stem begins to descend, causing the ball to move away from the valve seat and begin to rotate;

B、 Continuing to rotate the handwheel, the valve stem is subjected to the action of the guide pin embedded in its spiral groove, causing both the valve stem and the ball to rotate 90 ° simultaneously;

C、 When it was about to close, the sphere had already rotated 90 ° without contact with the valve seat;

D、 After a few turns of the handwheel, the angular flat surface at the bottom of the valve stem mechanically wedges and presses the ball tightly against the valve seat, achieving * sealing.

Stainless steel three-way ball valves should be installed with a position for the valve handle to rotate, and cannot be used for throttling. Ball valves with transmission mechanisms should be installed upright.