A type of carbon steel ball valve Nominal pressure: 1.6-6.4MPA Nominal Diameter: DN15-DN100 Temperature: -20 ~ 350 ℃ Suitable medium: water, oil, gas and some corrosive liquids. Connection: threaded, welded, socket weld and so on. Manufacturing materials: carbon steel, 201,304,316,316L so on. Q11F a style structure features a steel ball. Simple structure, small size and light weight. 2. Easy to operate, opening and closing rapidly, from fully open to fully closed as long as the rotation of 90 °, to facilitate remote control. 3. Compact and reliable valve sealing surface material widely used plastic, sealing, has also been widely used in the vacuum system. 4. Fluid resistance, its drag coefficient with the same pipe lengths are equal. 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. When the ball is rotated 90 degrees, in the import and export of office should be fully rendered sphere, thus cutting off the flow.