Sprinklers Flashcards
There needs to be _ spare heads for buildings with _ heads
- 6, 300
- 12, 300-1,000
- 24, over 1,000
Where shall spare sprinkler heads be located?
In an identified cabinet near control valve with max storage temp of 100 degrees F.
How much clearance is required around control valve and aisle access to control valve?
3’
All storage must be how many inches below sprinkler heads?
18”
What is rule of thumb in regards to sprinklers with storage in basement?
There shall be NO storage in basement unless sprinklered.
What are the four sprinkler systems?
- Automatic Wet Pipe system
- Automatic Dry Pipe System
- Non-Automatic System
- Deluge System
Automatic Wet Pipe System Definition
Pipes filled with water at all times.
Automatic Dry Pipe System Definition
Filled with compressed air and once sprinkler is activated air is released which drops pressure and allows water to flow in.
Non- Automatic System Definition
These pipes are dry and is where the FD connects and pumps to to provide sprinklers water.
Deluge System Definition
These sprinklers may be open or close and are supplied with water by a heat actuated valve. (Blue line station platforms)
Pressure you pump to sprinklers with no fire showing?
100 psi
Pressure you pump to sprinklers with fire showing?
150 psi
Junior System Facts
- provide simple, inexpensive protection for light hasard occupancies.
- Not more than 3-4 sprinklers are likely to operate
- Connected directly to service water supply through 1” brass pipe and electric water flow alarm
- No FDC or drain valve
- Dischare 1/2 as much water as a standard 1/2 “ sprinkler
- identified by pintle extending beyond center of deflector
Minimum and maximum cover of a sprinkler head of a residential?
Min: 12’x12’
Max: 20’x20’
Where are residential shutoff valves located?
Garage or side of home
