Appendix
Hose Demand (gpm)
Hose Duration (min)
Area of Demand (ft 2 )
Occupancy Description
Examples
QRAS
Type of Sprinkler System
Sprinkler Temperature Rating High, Intermediate, or Ordinary
Density (gpm/ft 2 )
Grocery, department, clothing, drug and similar retail stores; bowling alleys, theaters, auditoriums and display areas Exhibit halls with unusually high ceilings, high concentration or shielding of combustibles Engine rooms, refrigeration or compressor rooms, power and switch gear rooms, air conditioning equipment rooms, except as noted
Wet
2500
YES
0.15
250
60
Dry
3500
Mercantile Areas
Wet
5000
High
NO
0.30
500
120
Dry
8000
High High
3000 3500 4000 4000 4500 5000
Wet
Intermediate
Ordinary
YES
0.20
500
60
High
Dry
Intermediate
Ordinary
Wet
2500
High, Intermediate, or Ordinary
Boiler rooms
YES
0.15
250
60
Dry
3500
Power houses, utility and equipment rooms
3000 3500 4000 4000 4500 5000
High
Wet
Intermediate
Boiler rooms with exposed fuel tank
Ordinary
YES
0.25
500
60
High
Dry
Intermediate
Ordinary
No oil filled electrical equipment or other flammable liquids or gases such as oil lubrication or cooling systems
Wet
2500
High, Intermediate, or Ordinary
YES
0.15
250
60
Dry
3500
Generator Rooms
Refer to guidelines on Emergency Generators or contact FM Global for assistance. Wet 2500
Auto Parking Garages
High, Intermediate, or Ordinary High, Intermediate, or Ordinary
NO
0.15
250
60
Dry
3500
Apartments, club rooms, kitchens, libraries, offices, restaurants, schools, dormitories. Libraries with large stack rooms
Wet
YES
0.10
1500
250
60
General Use Areas
Dry
Contact FM Global for assistance in providing adequate sprinkler protection.
Table 1: Sprinkler Design Criteria
Rating Rated Temperature of Sprinkler
Ordinary
135° through 170°F 175° through 225°F
Intermediate
High 250° through 300°F Table 2: Sprinkler Temperature Ratings
20
Return to Table of Contents
Made with FlippingBook flipbook maker