The general principle of this system Theory suction of the water flowing through the tubes (Venturi Principal) as the basis, but added an important device to include "control ratio" (Ratio Controller) when water runs through the valve inlet (Inlet) of this device with high speed. pressure by the inlet and the outlet foam (Throat or Receiver) reduced the consequences ratio foam (foam) was the pressure, the higher the packed pushed to rush into the garden. Through this instrument, namely a mixture that resembles a small hole barriers are
now allowing water to flow into a control ratio is speeding up as a result of a pressure drop, which will become "the reference voltage" for the series. equipment foam that is used to adjust the foam with pressure equal to the pressure will be mixed together to produce a mixture of foam (Foam Solution) and spray out from the nozzle (Nozzle), a "foam mixed". (Finished Foam) The valve will be pressurized foam and water (volume ratio used), but on separate display in the gauge
to operate manually. The valve is used to measure voltage. Pressure of each pressure foam is balanced with the pressure of the water valve by hand while foam flows through the pipe
pressure loss within the foam mixing equipment. (Proportioner) will be in the 25-30 PSI at maximum flow rate set in the control ratio at a minimum flow rate, which makes the foam was about 15% of the maximum flow out of the device. can be
mixed and balanced pressure foam system (Balanced Pressure System) is used widely because it can be used with flow rates and pressure levels. The system automatically measured the ingredients which the user does not need to monitor the amount of water and foam formulations for any other operation while firefighters basic recommendations regarding foam fire.
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