Last time, I introduced some basic information about stainless steel ball valve
s. This time, I will introduce some working principles, characteristics and advantages of stainless steel three-way ball valves. Stainless steel three-way ball valve and flange gate valve
are the same type of valve, the closing is a ball, and the ball is a valve that opens and closes through the center line of the rotary valve. The valve is mainly used to cut off, distribute and change the flow direction of the medium on the pipeline. How it works: During the opening process: in the closed position, the ball is subject to the mechanical pressure of the valve, and clings to the seat of the valve. When the steering wheel is turned counterclockwise, the valve stem moves in reverse, and the triangular flat on the bottom removes the ball from the valve seat. Just before closing, the ball has rotated 90° without making contact with the valve seat. To the fully open position, the valve rod rises to the limit position, and the ball rotates to the fully open position. Structural features of stainless steel three-way ball valve: Top-loading structure: The valve installed on the pipeline can be directly inspected and repaired online, which can effectively reduce the shutdown of the device and reduce the cost. This kind of valve is generally installed horizontally in the pipeline. Open and close without friction: completely solve the problem that the traditional valve will affect the sealing due to the friction between the sealing surfaces. Low Torque Design Specially constructed valve rod, which can be easily opened even with small hands. Wedge seal structure. According to the mechanical force provided by the valve rod, the valve presses the ball wedge to the valve seat to seal, so as to avoid the sealing performance of the valve from being affected by the change of pipeline pressure difference, single valve seat design. The problem that the medium in the cavity of the valve affects the safety of use due to abnormal pressure rise is solved. The sealing surface is a self-cleaning structure. When the ball is tilted from the seat, the fluid in the tube passes evenly through 360° along the dense cover of the ball. The high-velocity fluid not only removes local brushing of the valve seat, but also washes away the condensate on the tight surface. achieve the purpose of self-cleaning. The advantages of stainless steel three-way ball valve: 1. The fluid resistance is small, and its resistance coefficient is equal to that of the pipe section of the same length; 2. The structure is simple, the volume is small, and the weight is light; 3. The sealing surface material of the ball valve is widely used. It has good performance and has been widely used in vacuum systems; 4. Easy to operate, fast opening and closing, only need to rotate 90° from fully open to fully closed, which is convenient for long-distance control; 5. Easy maintenance, simple structure of ball valve, general sealing ring They are all movable, and it is more convenient to disassemble and replace; 6. When fully open or fully closed, the sealing surface of the ball and valve seat is isolated from the medium, and when the medium passes through, it will not cause erosion of the valve sealing surface; 7. Wide range of applications , the diameter ranges from a few millimeters to a few meters, and can be applied from high vacuum to high pressure. The introduction of stainless steel three-way ball valve is here today. If you still have any questions or need to buy, you can contact Lianke Valve Co.,Ltd., contact number: +86-577-8585 9626. .
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