The QPQ Single-Cable Hoisting and Closing Machine is a specialized device for rapidly opening and closing the intake gates in hydraulic and water conservancy projects. It is designed to shut the gates within 2 minutes, either through automatic or manual control, in case the hydraulic turbine generator set fails due to load speed control system malfunction, or before the occurrence of a break in the pressure pipeline, in order to protect the safety of the unit and the factory building.

The QPQ single-hoist fixed hoisting and closing machine is widely used in water conservancy projects such as drainage and irrigation, hydropower stations, rivers, irrigation areas, reservoirs, etc. The high-pressure sealed box-type gate is a substitute product for hydraulic valves. This product features flexible operation, durability, excellent sealing performance, and high degree of automation, making it an ideal mechanical equipment for water conservancy projects.