What is the flow rate and pressure for a Bubblecup used for Class A foam?

The flow rate and pressure for a Bubblecup used for Class A foam are characterized by the ability to effectively disperse the foam in a manner that enhances its ability to suppress fires, particularly in combustible materials. The correct choice indicates a flow rate of 20-60 gallons per minute (gpm) at a pressure of 100 psi.

In firefighting operations, achieving a specific flow rate and pressure is crucial to ensure that the foam is properly proportioned and atomized. This aids in the improved coverage and penetration of the foam into the fuels involved in the fire. The specified pressure of 100 psi is optimal for generating the required foam consistency that provides effective fire suppression for Class A materials, which include wood, paper, and various types of plastics.

The range of 20-60 gpm allows for flexibility depending on the specific needs of the operation, providing sufficient volume to form a protective barrier while maintaining an effective application rate that helps to cool and blanket the fire area. This combination is vital for controlling and extinguishing fires efficiently while ensuring the safety of personnel involved in firefighting efforts.