The QFC Series Intelligent Hydraulic Actuator is specifically designed for DN200-DN4000 hydraulic control butterfly valve systems, primarily installed at pump outlets to replace check valves and shut-off valves. As the core driving unit for hydraulic pipeline safety, this actuator features modular integration with valves. Through precise hydraulic control, it enables two-stage opening/closing operations—rapid closure followed by slow closure—effectively eliminating water hammer effects and ensuring safe operation of pump units and water transmission networks. Suitable for demanding applications in water conservancy, power, and municipal engineering.