sprinklers state of georgia basic fire fighter training course
TRANSCRIPT
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