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Installation and Operation Manual
SystemsSystems
2001 and 2002
A QUICK LOOK AT HOW THE SYSTEM WORKS
The FoamPro 2001 and 2002 systems are
electric motor-driven, flow-based proportioning
systems that measure water flow and then inject
the proportional amount of foam concentrate to
maintain the preset percentage. The basic
FoamPro 2001 and 2002 systems are shown in
Figure 1. The systems will accurately deliver
from 0.1% to 3.0% foam concentrate to the
foam injector fitting. The flowmeter measures
the water flow and sends a signal to the Digital
Display Control Module. Another sensing
device monitors the foam pump output.
Constant comparison of these two information
signals by the computer ensures maintenance
of the desired proportion of foam concentrate at
all times based on the water flow rate,
independent of any variations in fire pump
intake or discharge pressures. As water flow
Figure 1. FoamPro System Layout
increases or decreases, the foam concentrate
rate of injection is increased or decreased
automatically to correspond to the water flow.
Foam concentrate is injected directly into the
water stream on the discharge side of the water
pump. It is then fed as foam solution by the
main fire pump into a standard fog nozzle, an
air aspirated nozzle, or CAFS equipment.
Since foam is injected on the discharge side of
the fire pump and check valves are to be used
at installation, contamination of the booster
tank, fire pump and relief valve with foam
concentrate is eliminated.
Order optional system components listed in
Section 3 to accommodate system design and
requirements.
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