SPRINKLERS

State of GeorgiaBASIC FIRE FIGHTER TRAINING COURSE

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Automatic Sprinkler Effectiveness

Most reliable form of fixed fire protection• Rarely fail to operate

• There never has been a multiple death in a fully operational sprinklered building

• 70% of all fires are controlled by activation of five or fewer heads

Less interruption of business and less water damage

Enhances life safety

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How Automatic Sprinklers Enhance Life Safety

Water is discharged directly on the fire The fire is usually controlled while it is in the

incipient (growth) stage Products of combustion are limited Sprinklers help prevent fire spread Occupants feel safer in a sprinklered building

thus reducing the likelihood of panic

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AUTOMATIC SPRINKLER Components

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SPRINKLER HEADParts

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TYPES of MAIN CONTROL VALVES Outside Screw & Yoke (OS&Y)

Remove lock using bolt cutters if necessary

Turn valve clockwise to close

Stem fully “IN” indicates the valve is closed

Reverse the procedure to open valve

• stem is out when fully open

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TYPES of MAIN CONTROL VALVESPost Indicating Valve (PIV)

Remove lock using bolt cutters if necessary

remove operating handle

place operating handle horizontal on operating nut

operate handle clockwise to close valve

• SHUT appears in view window

Reverse the procedure to open the valve

• OPEN appears in the view window

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TYPES of MAIN CONTROL VALVES Wall Post Indicating Valve (WPIV)

Remove lock using bolt cutters if necessary

Operate hand wheel clockwise to close the valve

• SHUT appears in view window

Reverse the procedure to open the valve

• OPEN appears in view window

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MAIN DRAIN VALVES

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FIRE DEPARTMENT CONNECTION and WATER FLOW ALARM

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SPRINKLER HEADSTypes

Bulb Type

Fusible Link

Quick ResponsePellet

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SPRINKLER SYSTEMS Operation

Fire starts, heat builds up Sprinkler head activates Water flow alarm sounds Fire department is notified and responds Fire department connects to sprinkler

connection

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SPRINKLER SYSTEMS Controlling Water

Using two sprinkler wedges• Insert two wooden wedges, one from each side,

between the discharge orifice and the deflector – Use the heel of hand to drive wedge in place

A commercial stop may also be used Notify the owner so that authorized and

trained person can restore the system