National Foam HLP-6A handline proportioners

National Foam HLP-6A Foam Equipment
BrandNational Foam
Model Code HLP-6A
Model Info

National Foam Handline Proportioners are venturi devices that introduce Foam Concentrate into a flowing stream of water at a controlled rate of either 1%, 3% or 6%. As water flows through the venturi (water orifice) at a high velocity, a negative pressure area develops at the discharge of the venturi. Handline proportioners are designed for hose line applications.

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