.
29.9 psi
0.433 psi
2.31 psi
14.7 psi
Class A
Class B
Class C
Class K
20 Sec
15 Sec
10 Sec
05 Sec
3 Year
5 Year
15 Year
20 year
10 to 25 sec
15 to 30 Sec
5 to 10 Sec
20 to 30 sec
10 hours supply
08 hours supply
05 hours supply
03 hours supply
-1 ℃
0 ℃
4 ℃
6 ℃
Monoammonium phosphate
Sodium bicorbonte
Potassium sulfide
Potassium chloride
40, 3
40, 5
40, 3.5
40, 5
Deluge
Dry pipe
Wet pipe
Preaction
6
12
18
24
NFPA 13
NFPA 10
NFPA 20
NFPA 25
100 GPM
150 GPM
200 GPM
250 GPM
Permit the building owner to avoid installing a fire pump
Maintain & boost the pressure & amount of water flowing through a sprinkler or standpipe system
Boost water pressure to upper floors
Protect the public water supply from backflow.
Impairment
Critical Deficiency
Noncritical deficiency
A two story building with a total area under 186 m2
A dry system with a capacity of less than 1892 liters.
A pump room with sprinkler system
A building located in a remote area that is inaccessible for the fire department.
30 mint
60 Mints
90 mints
120 mints4
2.25
1.25
2.5
10
Class A
Class B
Class C
Class D
1982
1896
1886
1897
65 % , 150 %
85 % ,150 %
100 %, 150%
75 % , 150 %
To Increase Water supply Capacity
To increase Water supply pressure
To provide a water supply sourc
To increase sprinkler system demand
20 ,130
25 ,135
15 , 137
10 , 110
10 mints
20 mints
30 mints
40 mints
NFPA 1962
NFPA 291
NFPA 25
NFPA 14