Which AFFF component pumps the concentrate?

Which AFFF component pumps the concentrate?

• A. AFFF Stations (6 on board)
• B. Solenoid Operated Pilot Valves (electronically activate the AFFF)
• C. AFFF Concentrate Pump
• D. Seawater Flow Control Valve (hycheck valve)

Answer: (C)

The key idea is that foam concentrate must be moved from its storage into the mixing side of the system to create foam. The component that does this is the AFFF concentrate pump. It draws concentrate from the storage tanks and pressurizes it into the mixing line, where it meets the seawater flow controlled by the appropriate valve or proportioning device. From there, the mixture is sent to the AFFF stations for use. The other parts have different roles. AFFF stations are the outlets where crews connect hoses to deploy foam; solenoid operated pilot valves control the electronic actuation of flow but don’t move the concentrate by themselves; and the seawater flow control valve regulates how much seawater enters the mixing point.

The key idea is that foam concentrate must be moved from its storage into the mixing side of the system to create foam. The component that does this is the AFFF concentrate pump. It draws concentrate from the storage tanks and pressurizes it into the mixing line, where it meets the seawater flow controlled by the appropriate valve or proportioning device. From there, the mixture is sent to the AFFF stations for use.

The other parts have different roles. AFFF stations are the outlets where crews connect hoses to deploy foam; solenoid operated pilot valves control the electronic actuation of flow but don’t move the concentrate by themselves; and the seawater flow control valve regulates how much seawater enters the mixing point.