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Installation and Operation ManualInstallation and Operation Manual
The FoamPro System 1600/1601 is an electric motor
driven flow-based proportioning system that measures
water flow and then injects the proportional amount of
foam concentrate to maintain the preset percentage.
The basic FoamPro 1600/1601 system is shown in
Figure 1. The system will accurately deliver from
0.1% to 1.0% foam concentrate to the foam injector
fitting. The flowmeter measures the water flow and
sends a signal to the motor driver control. 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
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.
Figure 1
FoamPro 1600/1601 System Layout
Since foam is injected on the discharge side of the fire
pump, and check valves are to be used at installation,
there is no foam concentrate contamination of the
booster tank, fire pump and relief valve.
Order optional system components listed in Section 3
to accommodate system design and requirements.
FoamPro 1600 Series proportioners are designed
for Class A foam concentrate (per NFPA 1150)
applications. Full pump performance is realized
with concentrate viscosities up to 500 cps when
concentrate supply line design and installation
recommendations are followed. As viscosity
increases, diminished flow may affect pump
performance. Because of numerous variables;
including pump design, foam cell configuration, inlet
piping/components and system layout; please contact
FoamPro at 800-533-9511 for application specific
recommendations when foam viscosities of 500 cps
or higher are used.
2 A Quick Look at How the System Works
Water
Tank
Foam Tank
Shut-off
Valve
Water
Pump
Line
Strainer
Single Discharge Coverage
Multiple Discharge Coverage and Manifold
Check
Valve
Check
Valve
Flowmeter
Calibrate/
Inject Valve
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