(Soft seal) resilient seated gate valve utilizing overall compensation package of plastic deformation to achieve a good sealing effect, to overcome the general valve seal bad, leaking and rusting phenomenon, with a switching lightweight, reliable sealing, excellent elastic memory and use life and other significant advantages. It can be widely used for water, sewage, construction, petroleum, chemical, food, pharmaceutical, textile, electric power, metallurgy, energy systems and other fluid lines as the closure device. Features: 1, the overall package of plastic: resilient seated gate valve with the overall package of plastic, its good coverage performance and precise geometry, to ensure the sealing performance and service life. 2, light weight: body made of gray cast iron or ductile iron made, light weight, easy installation. 3, flat seat :( soft seal) at the bottom of resilient seated gate valves and pipes using the same style flat seat design, does not produce debris siltation, more reliable seal. 4, corrosion resistance: cavity made of non-toxic epoxy resin coating to prevent rust and corrosion, not only for drink, but also for the sewage system. 5, the three "O" seal :( soft seal) resilient seated gate valve stem using three O-ring seals, friction is small, lightweight switch, watertight.