TRAINEE GUIDE - Recruit Training Command - The US Navy

TRAINEE GUIDE A-950-0001
OUTLINE SHEET 1-16-1 (continued)
d. AFFF portable fire extinguisher
(1) Purpose
(a) Extinguish small class "B" and "A" fires.
(b) Protect a small flammable liquid spill from ignition
by forming a vapor ____________ seal over the liquid.
(2) Components
(a) Cylinder
1 Stores 2½ gallons of a premixed solution of AFFF
concentrate and fresh water.
2 Also contains compressed air to pressurize the
AFFF solution.
(b) Pressure gauge--Indicates pressure within the
cylinder.
(c) Cylinder valve assembly
1 Opened by squeezing the operating lever to
activate the extinguisher.
2 To prevent inadvertent activation, the operating
lever is protected by a pull pin and chain with a
tamper seal.
(d) ____________ and ____________ assembly--Used to direct
the flow of AFFF solution toward the fire.
(3) Operating procedures
(a) Check the pressure gage to ensure it is within the
indicated range.
(b) Pull the pull pin on the valve assembly.
(c) With one hand, carry the extinguisher by the handle;
with the other hand, hold the discharge hose above the
nozzle.
(d) To discharge AFFF, squeeze the operating lever.
(e) The initial discharge range of the extinguisher is 15
feet. This decreases during discharge.
(f) Move the nozzle from side-to-side applying the agent
to the base of the fire.
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