The QPQ single suspended winch for quick opening and closing of gates is a device specifically designed for rapidly opening and closing intake gates in hydropower and water conservancy projects. It is used to shut the gates within 2 minutes, either automatically or manually, in case the water turbine generating set fails due to load speed control system malfunction, or before the occurrence of a runaway situation or a pipe burst, to ensure the safety of the unit and the workshop.

QPQ single suspended winch hoist is widely used in water conservancy projects such as irrigation and drainage, hydropower stations, river courses, irrigation areas, reservoirs, and so on. The high-pressure sealed box type sluice gate is an alternative product for hydraulic valves. This product features flexible operation, durability, good sealing performance, and a high degree of automation, making it an ideal mechanical equipment for water conservancy projects.