SJZ series water flow indicator is used for automatic water spray fire fighting system, installed on the main supply pipe or transverse branch pipe of the system, and can also be installed on the zone branch pipe. When the system is in operation, the pressure water flows in the pipeline, and the water flow indicator converts the water flow signal into an electrical signal under the push of the water flow, displaying the area where fire occurs through the control box. It can also be used to start the control switch of the fire water pump. The series of water flow indicators are divided into flange type, threaded insertion type, saddle type and groove type. Different types can be selected according to different use scenarios and engineering situations. The series of water flow indicators are divided into types with and without delay circuits. Types with delay circuits are divided into four levels, and the delay time can be selected between 2 and 90 seconds according to different situations. Installation and use precautions: 1. The water flow indicator is installed horizontally on the system pipeline and should not be side-mounted or inverted to avoid affecting the sensitivity of the water flow indicator. 2. The length of the pipeline connected to the water flow indicator before and after it must be no less than 5 times the diameter of the pipeline. When selecting the water flow indicator, select it according to the nominal diameter of the pipeline corresponding to the technical parameter table. 3. The direction of the water flow should be paid attention to during installation, and it should not be installed in reverse.
