Electric three ball valve Q914 
 The stainless steel ball valve working principle is to rely on rotary valve Love to make smooth or occlusion valve. The ball valve switch is lightweight, small size, can be made into a large caliber, reliable sealing, simple structure, easy maintenance, sealing surface and the spherical often in the closed state, is not easy to be medium erosion, has been widely used in various industries. 
 , Stainless steel ball valve in the pipe is mainly used to do to cut distribution and change the media flow direction. The ball valve is a new type of valve in recent years has been widely used, it has the following advantages: 
 A. Fluid resistance is small, equal to the drag coefficient with the length of the barrel. 
 Two. Simple structure, small size and light weight. 
 3. Reliable, close the valve sealing surface material widely used plastic, good sealing, has been widely used in the vacuum system. 
 4. Easy to operate, opening and closing rapidly, from fully open to fully closed as long as the rotation of 90 °, to facilitate remote control. 
 5 Easy maintenance, simple valve structure, the seals are generally activities, removal of the replacement is more convenient. 
 6. In the fully open or fully closed, the ball and seat sealing surface and the dielectric isolation, through the media, does not cause erosion of the valve sealing surface. 
 7. Wide scope of application, the path from childhood to a few millimeters to a few meters from the high vacuum to high pressure can be applied. The ball is rotated 90 degrees in the import and export of Department should be fully rendered sphere, thus cutting off the flow. 
 Stainless steel ball valve is a relatively new category of ball valves, it has some advantages unique to its own structure, such as switching non-friction seal easy to wear, opening and closing torque is small. This can be reduced with the specifications of the actuator. Together with the multi-turn electric actuators can be realized on media regulation and strict cut off 
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