The Application of PHP-80 Equipressure Proportional Mixer in Fire Control

The structure, operating principle, and features of the PHP-80 equipressure proportional mixer are introduced. This kind of mixer automatically blends the foam and water in proporta-tion, the mixture then is pumped to the foam generator to form foam to replenish the constanly consumed foam liquid. The author considers the mixer to be helpful to realize the automation of extinguishment for oil tank farm.