Not surprising to see this unit equipped with a CAFS installation, suggesting that China has caught up with many other countries when it comes to firefighting technology - and may even be a bit ahead of some ultra conservative fire services in other countries.
Although the Schmitz One Seven brand name reflects the laboratory proven fact that compressed air foam has a cooling effect seven times that of water alone, in practice it seems that CAF is actually around four times as effective in real life fire incidents.
Most manufacturers recommend a water flow of around 400 LPM for each interior structure attack line. With 0.1% solution and a four times expansion ratio, this translates into 1600 LPM of foam, and typically reduces knock down time by approximately 75%. It is also used for overhaul, as its smothering and penetrating characteristics are very effective on hotspots.
Interesting that a Chinese city fire station and appliance has a signage in English. However given the Chinese take over of manufacturing and more it would not surprise me if my descendants will be seeing English fire stations with signage in Mandarin.
Although the Schmitz One Seven brand name reflects the laboratory proven fact that compressed air foam has a cooling effect seven times that of water alone, in practice it seems that CAF is actually around four times as effective in real life fire incidents.
Most manufacturers recommend a water flow of around 400 LPM for each interior structure attack line. With 0.1% solution and a four times expansion ratio, this translates into 1600 LPM of foam, and typically reduces knock down time by approximately 75%. It is also used for overhaul, as its smothering and penetrating characteristics are very effective on hotspots.
Added by Rob Johnson on 23 March 2023.