Van xả tràn

The HMZSFM deluge alarm valve adopts the principle of diaphragm check valve. When the pipeline pressure of the two channels on both sides of the diaphragm is balanced, the diaphragm is in a closed state. When the pressure of the water supply system is higher than the pressure of the pipe network sprinkler system, the diaphragm can automatically open. It is a one-way check valve that can be combined with other components to form a variety of deluge alarm fire extinguishing systems, suitable for automatic sprinkler fire extinguishing systems such as hospitals, hotels, shopping malls, factories, airports, entertainment venues, libraries, stadiums, and exhibition centers. When the diaphragm is closed, the diaphragm deluge valve separates the valve body into two parts, the upper part is connected to the automatic sprinkler fire extinguishing system pipe network, and the lower part is connected to the water supply system pipe network. After sealing, the cover and the diaphragm form an inner cavity with controlled pressure, which is connected by the pipeline and the water supply pipeline on the upper part of the valve body. When the pressure of the inner cavity is basically balanced with the pressure of the water supply pipeline, the diaphragm is divided into a sealed state (i.e., a servo state). At this time, the water supply system cannot supply water to the pipe network. When the pressure in the diaphragm control room drops, the diaphragm automatically opens to supply water.