|[Electronic and Electrical] - [Fire alarm]|
DN15 fire sprinklers | 68 degree side spray | side wall type nozzle | closed sprinkler head
A. Droop type sprinkler
Droop-type nozzle is the use of a wide range of nozzles, sagging installed in the water branch pipe, the shape of a water-throwing parabolic, 80-99% of the total water sprayed to the ground.To protect the room ceiling, the ceiling below the nozzle, should The use of droop-type nozzle or ceiling-type nozzle.
B. Upright sprinklers
Vertical spray nozzle installed in the water branch pipe, sprinkling the shape of a parabolic type, the total water volume of 80 ~ 99% down spray, while part of the spray to the ceiling, suitable for installation in moving more, prone to impact sites Warehouses, can also be concealed in the roof of the room ceiling to protect the more combustible roof ceiling boron. (Do not do the ceiling of the place, when the distribution branch pipes arranged under the beam should be used upright. Parts, should be used with protective cover nozzle or ceiling-type nozzle)
In the event of fire, the fire water sprinkles evenly through the sprinkler, and controls the fire in a certain area.
Spray protection area in the 10 - 20 square between the smoke alarm protection surface
Plot in the 20 square
C. Ordinary new sprinklers
General type sprinkler can be directly installed, but also drooping installed in the water pipe network, the total water volume of 40% - 60% down spray, spray the larger part of the ceiling. For restaurants, shops, warehouses, underground garage, etc. Place. (Ordinary type is now used less)
D. side wall sprinkler
Side wall type sprinkler wall-mounted, suitable for space installation difficult places, mainly for offices, foyers, lounges, corridor rooms and other light-dangerous building parts.Table for the level of light-dangerous level, the risk level I-class rooms and offices, can be used side-wall type nozzle.
Above can refer to GB50084-2001, automatic sprinkler system design specifications
5, the installation