Damage control personnel must have a basic
What Navy rating maintains the magazine
understanding of the operation of AFFF systems and
the function of each of the components of the system.
Different ships use different AFFF setups. However,
once you understand the basic operation of system
components, you should be ready to use the AFFF
systems aboard any Navy ship.
The primary components and associated
equipment of a shipboard AFFF system include the
FILM-FORMING FOAM (AFFF)
· AFFF Generating Equipment
· AFFF Single-Speed Injection Pump
Learning Objective: Recall the operation and function
of the components of an installed AFFF system.
· AFFF Two-Speed Injection Pump
Aqueous film-forming foam (AFFF) is one of the
· AFFF Transfer Pumps
most widely used fire-fighting agents. AFFF is
· AFFF Tanks
primarily used aboard ship to fight class BRAVO fires,
often in conjunction with Purple-K-Powder (PKP).
· AFFF Valves
AFFF is delivered through both portable and installed
· Balanced Pressure Proportioner (Type II)
equipment. Two types of installed AFFF systems are
· Balanced Pressure Proportioner (Type III)
shown in figures 6-4 and 6-5.
Figure 6-4. Typical two-speed AFFF system.