This PE valve is mainly used as a common component for PE pipe hot tapping and plugging. During construction operations, the opening and plugging equipment is replaced by the gate valve opening and closing function of the fan valve. Equipped with a balanced release device, it balances the upper and lower pressure of the gate plate to avoid single-sided pressure when the gate plate is opened. Its upper flange is connected to the opening and lower blocking equipment, and its lower end is connected to different adapters and PE fittings.