Ricky Phillips, Instructor1 Automatic Sprinkler Systems Chapter 13.

Ricky Phillips, Instructor 1

Automatic Sprinkler Systems

Chapter 13


Automatic Sprinkler Systems

Most reliable fixed extinguishing system No reported multiple deaths in a

completely sprinkled building Controls 70% of all fires with five or

fewer sprinklers activated


Automatic Sprinkler System

Consist of sprinkler heads– arranged to automatically distribute water

directly to the fire Water supplied through a system of

piping


Two types of Sprinkler Coverage

Complete Sprinkler Coverage– protects the entire building

Partial Sprinkler Coverage– protects only certain areas

• high hazards, exit routes, places required by code or AHJ


NFPA 13

Standard for the Installation of Sprinkler Systems

Requirements on spacing, pipe size, and all details concerning the installation of sprinkler systems


NFPA 13D

Standard for the Installation of Sprinkler Systems in One and Two Family Dwellings and Mobile Homes


FM or UL Listings

All parts of system regulated by – Factory Mutual– Underwriters Laboratories


Effects on Life Safety

Life Safety is enhanced– fire is extinguished will small

Combustion products are limited– extinguishment in incipient stage

Presence is crucial in high-rise buildings


System Fundamentals

Sprinklers Sprinkler Design Sprinkler Storage Control Valves Water Flow Alarms Water Supply Fire Department Connection


Sprinklers

Discharge water Fusible Link Glass Bulb Chemical Pellet Quick Response


Sprinkler Design

Pendant Upright Sidewall Special Sprinklers


Sprinkler Storage

Storage Cabinet– extra heads– sprinkler wrench

Changing sprinkler heads should only be performed by representatives of the building’s occupants.


Control Valves

OS&Y Valve Post Indicator Valve (PIV) Post Indicator Valve Assembly (PIVA) Operating Valves


Waterflow Alarms

Hydraulic or electrical warn of water movement in system Hydraulic alarm sounds local Electrical alarm sounds local and fire

alarm system


Water Supply


Fire Department Connection

Provides outside source of water supply Consists of at least two 2-1/2” female

connections or one LDH connection Supplied by pumper with minimum

1,000 gpm pump or greater Minimum of two 2-1/2” lines PDP of 150 psi.


Types of Systems

Wet-Pipe Dry-Pipe Pre-Action Deluge Residential


Wet-Pipe System


Dry-Pipe System


Deluge System


Pre-Action System


Residential System


Factors & Considerations


Controlling Water Flow from a Sprinkler Head

Ricky Phillips, Instructor1 Automatic Sprinkler Systems Chapter 13.

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Transcript of Ricky Phillips, Instructor1 Automatic Sprinkler Systems Chapter 13.