The parallel double-gate valve offers superior performance with quick opening and closing, labor-saving operation, good sealing performance, and long service life. It is safe to operate and easy to maintain. It is especially suitable for cutting off or discharging gas-liquid media in pipelines, and is convenient for remote control. The valve can meet the harsh working conditions of high temperature, high pressure, explosion-proof, and corrosion resistance. It is widely used in industries such as petroleum, chemical, light industry, oil depots, metallurgy, and power generation.