This gate valve is of the wedge single-gate type with an elastic structure. It features a compact and reasonable design, good valve rigidity, smooth and flexible operation, excellent sealing performance, safe operation, and easy maintenance. The series of valves can meet the harsh working conditions of high temperature, high pressure, corrosion resistance, and fire resistance. It is widely used in industries such as petroleum, chemical, light industry, metallurgy, power generation, and thermal networks in power plants.