Pneumatic three-way ball valve features: 1. Fluid resistance is small, the resistance coefficient and the same length of the pipe section. 2. Pneumatic three-way female ball valve structure is simple, small size, light weight. 3. Tight and reliable, the current ball valve sealing surface material widely used plastic, good sealing, vacuum system has also been widely used. 4. Pneumatic three-way female ball valve easy to operate, open and close quickly, from full open to close as long as 90 ° rotation, easy to remote control. 5. Easy maintenance, ball valve structure is simple, the seals are generally active, demolition and replacement are more convenient. 6. In the fully open or fully closed, the ball and valve seat sealing surface and media isolation, the media will not cause erosion of the valve sealing surface. 7. Pneumatic three-way female ball valve wide range of applications, diameter from a few millimeters, up to a few meters, from high vacuum to high pressure can be applied.