Q41F type ball valve is mainly used to cut off or turn on the line of medium, can also be used to regulate and control the fluid. The main features of valve is its own compact, reliable sealing, simple structure, easy maintenance, and spherical sealing surface often in the closed state, the media can not easily be eroded, easy operation and maintenance, general working water, solvents, acids, and natural gas and other applicable media, has been widely used in various industries. Benefits 1. Fluid resistance, full bore valve basically no flow resistance. 2. Simple structure, small size and light weight. 3. Compact and reliable. It has two sealing surfaces, and valve sealing surface material widely used kinds of plastic, sealing, and can be completely sealed. In the vacuum system has also been widely used. 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 ball valve, seals are generally activities, the removal replacement is more convenient. 6. When fully open or fully closed, the sealing surface and the dielectric isolation ball and seat, through the media, will not cause erosion of the valve sealing surface. 7. Wide range of applications, from small diameter to a few millimeters to a few meters from high vacuum to high pressure can be applied. Main external and connecting dimensions diagram symbols Nominal size 15 20 25 32 40 50 65 80 100 125 150 200 L 160 165 185 203 222 241 280 320 360 502 H 125 135 135 140 154 182 223 237 288 356 L0 200 200 250 250 300 400 500 600 800 1200 L 160 165 180 203 222 241 320 320 360 H 125 135 135 140 154 182 223 237 288 L0 200 200 250 250 300 400 500 600 800 L 130 140 160 165 200 220 250 280 320 320 360 H 75 75 90 103 125 128 168 179 223 237 288 L0 140 160 200 200 250 250 250 300 400 600 800