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"System Riser: The aboveground horizontal or vertical pipe between the water supply and the mains (cross or feed) that contains a control valve (either directly or within its supply pipe and a waterflow alarm device" 2007 NFPA 13 Standard for the Installation of Sprinkler Systems
In short, it is the pipe that "rises" from the water supply to the ceiling. Larger buildings have multiple risers that feed different areas of the building.
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How does dry riser sprinkler system works?
The heat of the fire causes sprinklers to trip, releasing nitrogen or some other gas held under pressure in the system through the sprinklers. This action activates a dry pipe valve within the sprinkler system which releases fire protection water which has been restrained within the system, through the sprinklers with the intention of dousing if not extinguishing the fire.
Will you get a discount on homeowners insurance if you install a sprinkler system?
=== === If its a yard sprinkler, no. If its a fire sprinkler, yes.
Are storage areas free from pipes ventilation ducts and water lines?
Not always. Many double as "riser" access to fire sprinkler systems.
Why would you use 3 port valves on fire system riser pressure indicators?
why would you use 3 port valves on fire system riser pressure indicators
How many types of fire protection system?
Below given list based on a determination specific needs.Wet Fire Sprinkler SystemsDry Pipe SystemsPreaction SystemsDeluge Sprinkler SystemAnti-Freeze Sprinkler System
How do you add zones to a fire sprinkler system?
Fire sprinkler systems are effectively already zoned - you don't need to do anything special. When your fire sprinkler system detects a fire, it doesn't set off all the sprinkler heads at once. Instead, each fire sprinkler head goes off when the temperature underneath it reaches a specific temperature, meaning only the ones affected by the fire will go off.
Which type of fire sprinkler system is most common and easiest to install?
Wet pipe sprinkler
What other country aside from the US is noted for its interest in developing the automatic fire sprinkler system?
England is noted for its interest in developing the automatic fire sprinkler system.
What is the difference between wet riser and dry riser?
A Dry Riser is a system of valves and pipework which enables the Fire Service to pump water on to the upper floors of a building. A Wet Riser is a system of valves and pipework which are kept permanently charged with water.
What temperature does red bulb break in fire sprinkler system?
68 degree centigrade needs to break the red bulb in the fire sprinkler.
What should be the maximum distance between fire sprinkler as per NBC?
The maximum distance between fire sprinkler, per NBC, depends on the sprinkler system. The size of the sprinkler and the number of sprinklers need to be considered when installing.
Can a water sprinkler system be used for transformer fire protection?
Yes, there is a well-defined standard for "water-mist" sprinkler systems for protection of electrical transformers and switch-gear, including required minimum spacing according to the voltages present.
