Sidewall Sprinkler

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Sidewall Sprinkler

Sprinkler is an important part of wet-type auto spraying system. It is usually installed inside the building and structures with light fire danger, medium fire danger and heavy fire danger, such as workshop, warehouse, hotel, shop, recreational place, hospital, cinema, office building and garage.
The sprinkler is composed of sprinkler frame, sealant and glass bulb. It is to be installed in the protective district via ductwork, acting as a fire detector and auto sprayer. In case of fire inside the protective district, the atmosphere temperature rises up and the liquid inside the glass bulb expands after being heated and explodes after reaching the operating temperature of the glass ball. The sealant drops and the sprinkler sprays to the protective district for fire extinguishments subject to the preset shape of spraying.

Influence of K factor

K factor of a fire sprinkler head refers to the ratio of the actual flow rate and the theoretical flow rate of the sprinkler head, and also indirectly represents the flow rate of a sprinkler head. ‌ The K factor is mainly used to calculate the actual flow of the sprinkler head. The relationship between flow rate, pressure and K value is as follows: the flow rate is proportional to the K factor. The greater the K factor, the greater the flow rate.
The K factor of fire sprinkler is different in different sprinkler types. For example, a standard covered area sprinkler has a K factor K≥80, while an extended covered area sprinkler has a K factor greater than 80, but the specific values may vary. In addition, the K factor of the water mist nozzle ranges from 16 to 102, which is determined by the water mist nozzle manufacturer.

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