Water flow indicator (ZSJZ-922)DN50-DN200

Product overview:

ZSJZ type water flow indicator consists of valve body, paddle and micro switch. The water flow indicator is mainly installed on the horizontal main pipe of the layered or divided automatic sprinkler system, and plays the role of detecting and indicating the alarm area in the automatic sprinkler system. Once there is a fire somewhere, the system is turned on, the sprinkler nozzle sprays water, and the water flows in the pipe. When the system water passes through the indicator, the blades in the impact flow indicator deflect and tilt in the direction of the water flow. The action rod squeezes the ultra-small electrical switch, and the electric contact The point is closed and an electrical contact signal is given. That is, the water flow signal is converted into an electrical signal, the electric alarm system is started or electrical equipment such as fire pumps are directly started, and a fire occurs somewhere controlled by the area (or layer) is displayed on the console, and an alarm is issued, thus spraying The main pump provides continuous water supply for fire extinguishing. When the water flow stops, the film and the action lever are reset, the switch contact is disconnected, and the electrical contact signal is eliminated.

Product advantages:

①Simple structure, easy to install and disassemble

②High sensitivity and timely alarm

③The main body has high spheroidization rate, corrosion resistance and reliable quality.

Parameter standards:

Design standard: GB 5135.7

Connection standard: saddle type

Coating standard: ANSI/AWWA C550

Nominal diameter: DN50-DN200

Nominal pressure: PN16

Applicable temperature: 0～80℃

Applicable medium: water

Application areas: fire protection field