This valve operates by the straight linear movement of the valve plate to open and close the valve? Such valves are primarily installed on horizontal pipelines, mainly to prevent backflow of the medium when the water pipe needs maintenance and the pump is shut off? Design FeaturesDesign Standards: BS1868, ASME B16.34, GB/T 12235Excellent sealing performanceRising and falling valve plateWide range of applicationsQuick valve closureLower closing impact force