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Balanced pressure proportioning

Simply described, if the water and foam concentrate are supplied to a venturi proportioner at the same pressure then accurate proportioning is possible over a reasonably wide range of flows. There are two basic versions of this type of system, pump s


Line proportioner systems

The humble, simple and inexpensive line proportioner is the most abused and misused foam proportioning device. Yet it is not that hard to design and install them correctly and then they will give decades of trouble free performance when used properly


Turbine Proportioner Systems

Turbine proportioners use a water turbine, often a positive displacement water turbine, that is direct coupled to a positive displacement foam pump that is sized to provide the required foam concentrate mixing rate. There are a range of different