This product is a two-piece stainless steel threaded ball valve; widely applied to the field of construction, electricity, air, fire, central air conditioning, papermaking, metallurgy, chemical industry, civil defense, municipal and other. Nominal Diameter: DN15-DN100 Suitable medium: water and gas nominal pressure: 1.6 ~ 6.4Mpa Temperature: -20 ℃ ~ + 150 ℃ manufacturing materials: carbon steel, 1Cr18Ni9Ti ﹑ 304﹑316 stainless steel two-piece threaded valve in the pipeline mainly used for cutting, distribution and change the direction of flow of the medium. Ball is a new valve has been widely used in recent years, it has the following advantages: 1. Fluid resistance, its drag coefficient with the same pipe lengths are equal. 2. Simple structure, small size and light weight. 3. Compact and reliable valve sealing surface material widely used plastic, sealing, has also 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 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.