Foam concentrate pumps shall be provided with which of the following?

Foam concentrate pumps shall be provided with which of the following?

• A. Drain cock or valve.
• B. A heat exchanger.
• C. A cooling fan.
• D. An auxiliary pump.

Answer: (A)

Foam concentrate pumps are required to have a way to purge and drain the concentrate from the pump and its discharge piping. A drain cock or valve provides a direct path to completely drain residual foam concentrate after operation, during maintenance, or when changing concentrates. This prevents buildup, makes testing and servicing possible without leaving concentrated residue in the pump, and helps ensure reliable priming and performance. Other items listed aren’t universally required for the foam concentrate pump itself. A heat exchanger may be used in some systems to condition concentrate but isn’t a standard, mandatory feature for every pump. A cooling fan isn’t a typical requirement for NFPA 16 foam pump installations, and an auxiliary pump, while it may appear in some dual-pump configurations, isn’t a basic requirement for the foam concentrate pump.

Foam concentrate pumps are required to have a way to purge and drain the concentrate from the pump and its discharge piping. A drain cock or valve provides a direct path to completely drain residual foam concentrate after operation, during maintenance, or when changing concentrates. This prevents buildup, makes testing and servicing possible without leaving concentrated residue in the pump, and helps ensure reliable priming and performance.

Other items listed aren’t universally required for the foam concentrate pump itself. A heat exchanger may be used in some systems to condition concentrate but isn’t a standard, mandatory feature for every pump. A cooling fan isn’t a typical requirement for NFPA 16 foam pump installations, and an auxiliary pump, while it may appear in some dual-pump configurations, isn’t a basic requirement for the foam concentrate pump.