Electric fan the basic structure of the valve and hydraulic type fan the same of the valve, the valve installation of hydraulic cylinder parts modified special explosion-proof electric putter. Electric fan the valve has simple structure, convenient in operation and maintenance, can be extreme distance control. This valve is equipped with electric operation longitudinal channel. This valve can be used in a pneumatic, hydraulic drive source and automatic remote control occasions. When installation, please refer to determine the installation direction shown here.