Air Foam Pump : A device that uses a positive displacement pump to produce foam extinguishing agent by proportioning water and concentrate which will be mixed with air at the nozzle
Ralph W. Burklin & Robert G. Purington, Fire Terms: A Guide to Their Meaning and Use, National Protection Association, Boston, MA 1980 USA. (Guide: Meaning and Use, Nat Prot Association Fr Srvc - Amer) {457}