What factor is critical in selecting a proportioner for foam application?

Selecting a proportioner for foam application relies heavily on the foam solution flow requirements. This is essential because the effectiveness of foam in suppressing fires is directly correlated to how much foam solution is delivered to the fire scene at the correct concentration. The proportioner must be capable of accurately mixing water and foam concentrate at the desired ratios and flow rates to ensure optimal performance.

If the flow requirements are not met, the foam may not form correctly, which can impair its ability to blanket the fuel surface effectively and extinguish the fire. Therefore, understanding the flow demands for different types of incidents helps ensure that the proportioner chosen can meet the specific needs of the situation, delivering the right quantity of foam solution to tackle the fire efficiently.