What type of nozzles are used with inline eductors for mixing AFFF?

The use of 95 gpm vari-nozzles with inline eductors for mixing AFFF (Aqueous Film-Forming Foam) is optimal because they are specifically designed to accommodate the varying flow rates and pressures needed to create an effective foam solution. Vari-nozzles allow for adjustable patterns and flow rates, providing greater flexibility when delivering foam to a fire or hazardous material spill. This adjustment capability ensures that the right mix of foam concentrate and water is achieved, which is crucial for effective fire suppression and control.

Moreover, the unique properties of AFFF necessitate a nozzle that can maintain the appropriate foam expansion and application rate. The 95 gpm vari-nozzle strikes an ideal balance between delivering sufficient flow and maintaining the necessary pressure to optimize foam performance.

In contrast, other options, such as fixed or manual nozzles, may not provide the same level of adaptability. Fixed nozzles may not be able to vary the flow or pattern according to specific situation requirements, while manual nozzles generally lack the ability to efficiently mix and emit the foam at necessary rates during dynamic fire conditions.