Nozzles

Nozzles
Nozzles
Objectives
Review Smoothbore Nozzles
Review Single Gallonage
Review Adjustable and Automatic
Nozzles.
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2 ½ Smoothbore nozzle
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1 inch tip
@ 50 PSI
=210 GPM
@45 PSI
= 199GPM
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Field Calculation
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=200 GPM
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2 ½ Smoothbore nozzle
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1.125 inch tip
@ 50 PSI
=266 GPM
@45 PSI
= 252GPM
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Field Calculation
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250 GPM
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2 ½ Smoothbore nozzle
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1.25 inch tip
@ 50 PSI
=328 GPM
@45 PSI
= 311GPM
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Field Calculation
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300 GPM
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2 ½ Smoothbore nozzle
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1.5 inch bore
@ 50 PSI
= 473 GPM
@ 45 PSI
=448 GPM
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Field Calculation
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450 GPM
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2 ½ Smoothbore nozzle
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Pushing the
envelope flowing
over 300GPM with
2 ½ inch hose.
Combination (Fog) Nozzles
Single Gallonage Nozzles
 Adjustable Gallonage Nozzles
 Automatic Nozzles
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Single Gallonage Nozzles
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Flows rated capacity at specified
Nozzle pressure (usually 100psi).
Will flow more or less depending on
actually nozzle pressure.
If supplied with more than its
operating pressure, volume will
increase but nozzle reaction will also
increase and stream will begin to
break up.
Source: Fornell, pg. 126
Elkhart 4000-14
Low Pressure
Nozzle.
 Chief series 75
psi NP = 150
gpm.
 Single/constant
gallonage nozzle.
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Elkhart 4000-14
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Pressure and
gallonage
rating is
stamped on
the nozzle
(150
gpm@75psi).
Elkhart 4000-14
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Can get more GPM with increased
pressure.
75 psi NP = 150 gpm
100 psi NP = 170 gpm
Fixed gallonage nozzles have a
disproportionate increase in nozzle
reaction for increased pressure/GPM.
Adjustable Gallonage Fog Nozzles
Similar in design to the single
gallonage nozzle.
 Selector Ring allows
firefighter to select flow.
 Usually 95 - 200 GPM range
for 1 3/4” lines.
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Adjustable Gallonage Fog Nozzles
Automatic Nozzles
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Elkhart
Select-o-matic
series
Task Force
Tips
TFT
Nozzles
Dual Pressure Automatic Nozzle
1.5” Nozzle Tip Only
1.5” Nozzle w/Twist-off
1.5” Nozzle
TFT Nozzles
Dual-Force Series
TFT Nozzles
Dual-Force Series
Features
Full Automatic dual pressure control
nozzle for use on 1.5” to 3.0” attack
lines
•Operates in standard 100 PSI mode or
low pressure mode of about 55 PSI
• Red-Low Pressure for maximum flow
(interior)
• Blue-Higher Pressure for maximum
reach & penetration (exterior)
• All lightweight materials, hardcoat
anodized aluminum
•
TFT
Nozzles
Dual-Force
Series
Features
Has a flow range of 70-250 GPM
• Six position detent flow control with
exclusive TFT turbulence free slide valve
and molded rubber handle
•Molded rubber bumper with full fill
“power fog” teeth
• Flush without shutting down
•
Summary
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Numerous different types of Nozzles
Know what is on your apparatus and
how to get the maximum flows and
streams out of them.