Product Overview Product use: The valve shut-off valve for use; for water supply and drainage, power generation, oil, gas (natural gas), chemical industry, metallurgy, food (beverages), pharmaceutical, paper, shipbuilding, environmental protection and other engineering system transport a variety of corrosive, non-corrosive fluids piping and containers used to adjust and cut off the flow of media. Features [Performance Introduction: 1, small, lightweight, easy assembly and disassembly and maintenance, and can be mounted in any position. 2, simple and compact structure, opening and closing the light quickly turn 90 °. 3. Operating torque small, energy saving. 4, flow resistance, flow characteristics tend to a straight line, regulated performance. 5, to be completely sealed, gas leakage test is zero. 6, the number of trials open and close as many as tens of thousands of times, long service life. 7, use of different materials, applicable for various media.