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Many organizations and enterprises use stainless steel three-way ball valves. Do you know how to open and close them correctly? Next, let’s take a look at the specific steps! Process of opening a stainless steel three-way ball valve: 1. When in the closed state, the ball is pressed tightly against the valve seat by the mechanical force exerted by the valve stem. 2. When the handwheel is turned counterclockwise, the valve stem moves in the opposite direction; its bottom angular surface causes the ball to disengage from the valve seat. 3. The valve stem continues to rise, interacting with the guide pins in the spiral groove of the valve stem, allowing the ball to begin rotating frictionlessly. 4. Opening is completed when it reaches the fully open position: the valve stem is lifted to the corresponding position and the ball rotates to the fully open position. Process of closing a stainless steel three-way ball valve: 1. First, the handwheel must be rotated clockwise; the valve stem begins to descend, causing the ball to move away from the valve seat and start rotating. 2. Continue rotating the handwheel; the valve stem, acted upon by the guide pins located in the helical grooves on it, causes both the valve stem and the ball to rotate 90° at the same time. 3. Near shutdown, the sphere had already rotated 90° without making contact with the valve seat. 4. After the handwheel is turned a few turns, the angular surface at the bottom of the valve stem exerts a wedge-like pressure on the ball, forcing it to press tightly against the valve seat; this achieves a sealing effect.