Botou Xin De Brand square square manual gate valve manual gate valve is one of the most commonly used cut-off valve, mainly used to connect or disconnect the line of media, the media is not used to adjust the flow rate. The use of pressure, temperature and a large diameter range, in particular used in large diameter pipes, are widely used in the dust collector. The main features of the square there is a manual gate valve fluid resistance. Gates inside the medium through hole is straight and does not change its flow direction medium flows, and therefore less resistance to flow; open and close more effort. When opening and closing the valve plate motion direction perpendicular to the flow direction of the medium. And compared to open and close more effort. Medium flow direction is generally unrestricted. Medium can flow in any direction from both sides, can achieve the purpose of making or breaking. Easy to install, the flow direction of the medium may be used to change the pipeline. Advantages square manual gate valve: 1, fluid resistance is small, its drag coefficient with the same pipe lengths are equal. 2, simple structure, small size and light weight. 3. Close and reliable gate valve sealing surface material widely used plastic, sealing, and 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 gate valves, seals are generally activities, the removal replacement is more convenient. 6, in the 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, a wide range of applications, from small diameter to a few millimeters to a few meters from high vacuum to high pressure can be applied. For more information on the square to make a manual gate valve in http://www.botouchuchenqi.com/qtccpj/107.html