Which method of foam proportioning uses the pressure energy in the stream of water to induct foam concentrate into the foam stream?

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Multiple Choice

Which method of foam proportioning uses the pressure energy in the stream of water to induct foam concentrate into the foam stream?

Eduction relies on the energy of the moving water to pull foam concentrate into the stream. In an eductor, water passes through a constricted throat, creating a venturi effect that lowers the pressure at that point. That reduced pressure draws foam concentrate from its supply into the water stream, and the two mix as they continue toward the nozzle to form foam solution. This method uses the water’s velocity and pressure to induct the concentrate without needing a separate pump for the concentrate, with the proportion governed by the eductor’s design and the water flow rate.

Eduction relies on the energy of the moving water to pull foam concentrate into the stream. In an eductor, water passes through a constricted throat, creating a venturi effect that lowers the pressure at that point. That reduced pressure draws foam concentrate from its supply into the water stream, and the two mix as they continue toward the nozzle to form foam solution. This method uses the water’s velocity and pressure to induct the concentrate without needing a separate pump for the concentrate, with the proportion governed by the eductor’s design and the water flow rate.

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