A ZSFM series deluge alarm valve Product Description: The deluge valve is a direct sealed diaphragm, diaphragm made of imported rubber material, with a reasonable structure, reliable performance, easy to use, simple maintenance and convenient. No valve shaft, metal valve and other components, so there is no problem of corrosion. Widely used in various open system (system side piping is open sprinkler) systems such as rain, water curtain systems, water mist systems. The valve according to GB5135.5-2003 standard manufacturing. Second, the product composition and working principle by the deluge valve deluge valve system, hydraulic alarm, pressure switches, cabinet, fire sensors (electronic detectors, closed nozzle), fire sprinklers (open, mist, water curtain) and so on deluge valve system. When the system is in the state should wait by the fire water deluge valve will be closed to the water supply pipe network side and the system side of the pipe network without water. Deluge valve can open the way to power control, guide tube control (wet or dry), manual control in three ways, the user can choose according to local conditions. The deluge valve diaphragm cavity pressure level control valve opening and closing the rain, when the diaphragm chamber pressure is equal to supply pressure diaphragm closed the water can not enter the system. When the solenoid valve is opened or opened by staff from the emergency manual fast open or closed nozzle operation due to open, the diaphragm chamber pressure drops to a certain value, the diaphragm chamber is the water pressure to open the top, side pipes flow into the system network Extinguishing. Electric control open: first electron detector located the fire signal measured is transmitted to the control panel, the control panel will signal filtering, again drench the solenoid valve on the start signal is given, the solenoid valve is opened in protected areas, the diaphragm cavity pressure relief valve operation rain, water from the water supply into the system pipe network, sprayed the entire protected area through the open nozzle, fire-fighting capabilities. Guide tube control: diaphragm chamber pressure may also be wet or dry pipe network control, that is composed of a wet (water) or dry (air) system, when closed nozzle guide tube by action of the water separator chamber pressure drop, the valve is opened. Manual control: generally commissioning tests or emergency use.