The chemical industry has a variety of flammable liquids, foam fire extinguishing system is the most effective way to extinguish fire, because the sac pressure ratio mixing device is only suitable for small flow, and mechanical pumping is an ideal choice, suitable for a variety of flow and a variety of systems, including foam-water spray system, foam-water rain system, low, medium and high multiple foam fire extinguishing system.

For some low boiling point flammable liquids in the chemical industry, HFC-propane foam fire extinguishing system can be used, and F+W proportioner device is also the best choice for foam proportional mixing in this system