Electric cut-off valve and flanged gate is belong to one and the same type of valve consists of electric actuators or pneumatic actuators and globe valve in two parts, the difference in its closure is a valve body, valve body around the center line of the body as a rotation to achieve a kind of open and close the valve. Gate valves are mainly used in the pipeline for cutting, distributing and changing the flow direction of the medium. Two - chip ball valve, three - chip ball valve, is a new type of valve widely adopted in recent years.