What are the common fire extinguishing nozzles?

What are the common fire extinguishing nozzles?

Previous article "How to choose the best fire extinguishing nozzle?》Introduced how to choose fire extinguishing nozzles, but you may not be very familiar with the types of fire extinguishing nozzles, so todayBus fire sprinkler nozzleThe manufacturer introduces several common fire extinguishing nozzles with pictures to facilitate your identification and selection. Currently commonly used ones include: pendant sprinkler heads, upright sprinkler heads, ordinary sprinkler heads, side wall sprinkler heads, etc.

1. Drooping nozzle
This is a widely used sprinkler head, often installed on the water supply branch pipe. The shape of the sprinkler is parabolic, spraying 80 to 100% of the total water volume to the ground. To protect rooms with suspended ceilings, sprinkler heads should be arranged under the suspended ceiling, and pendant sprinkler heads or ceiling-type sprinkler heads should be used.

2. Upright nozzle
This kind of sprinkler head is also often installed upright on the water supply branch pipe. The sprinkler shape is parabolic. While 80 to 100% of the total water volume is sprayed downward, some of it is sprayed to the suspended ceiling. It is also suitable for installation in places with a lot of moving objects and prone to collisions, such as warehouses. It can also be installed concealed on the roof of a room's ceiling mezzanine to protect ceilings with more flammable materials. (In places without suspended ceilings, when the water distribution branch pipes are arranged under the beams, they should be of the upright type. In areas prone to collision, sprinklers with protective covers or ceiling-type sprinklers should be used)

3. Side wall type
As the name suggests, it is installed against the wall. It is suitable for installation in places where space routing is difficult. It is mainly used in offices, foyers, lounges, corridors, guest rooms and other lightly dangerous parts of buildings. For light-risk and medium-risk Class I bedrooms and offices with horizontal roofs, side wall sprinklers can be used.

4. Concealed sprinkler
It is suitable for high-end hotels, residences, theaters and other places where the ceiling needs to be smooth and tidy.

The cover of the concealed sprinkler is welded to the threads with fusible metal, and the melting point is 57 degrees. Therefore, in the event of a fire, the temperature rises and the cover falls off first. When the temperature rises to 68 degrees (general sprinkler head), the glass tube bursts and water spurts out. Therefore, the taboo of concealed nozzles is paint and paint on the cover, which may cause malfunction.