ZSFM series diaphragm deluge valve adopts three control methods to open fire extinguishing by the main valve. After the main valve is opened, the pressure enters the pressure switch and the hydraulic alarm bell will sound, and the pressure switch will send a signal to the control center or turn on the fire pump. The diaphragm deluge valve has an anti-reset structure. When the main valve passes through the automatic or manual main valve, the main valve needs to be reset and closed by manual operation.