Abstract: Through screening typical foam fire extinguishing equipment and foam fire extinguishing agents, the equipment performance evaluation research based on spray test was carried out. The results showed that it is difficult to comprehensively evaluate the spray performance of foam fire extinguishing equipment by using only one source and one type of foam during the product testing process; the spray performance of foam guns and fire monitors highly dependent on the type of foam; it has good adaptability to the AFFF; the spray performance of same type of AFFF from different manufacturers has little difference; the use of aspirated and non-aspirated monitor heads has little effect on the foam performance of fire monitor.

Key words: fire-fighting, foam fire extinguishing equipment;spray performance, expansion, drainage time