Pressure type proportional mixing device

1 overview

PHYM series
pressure proportional mixing device is an important equipment of fixed foam
extinguishing system engineering.Foam mixture can be provided in combination
with foam generator, foam nozzle, foam gun, foam cannon or other injection
equipment to produce low-expansion air foam to fight class A or water-soluble
and insoluble class B fires.

Product standard:
GB 20031-2005 general technical conditions for foam extinguishing systems and
components.

2 application scope

The device can be
used in oil field, oil refinery, petrochemical plant, garage, aircraft hangar,
oil depot transport ship and dock and other places.

3 of

It is mainly
composed of foam storage tank with capsule and foam proportioner, water inlet
pipe, liquid outlet pipe, exhaust pipe, position mark and liquid discharge
pipe.

4 working principle

When the system
works, the pressure water fills the tank with water from the inlet valve
through the water inlet pipe, squeezes the capsule to replace the foam liquid,
and mixes with water in proportion in the proportioner to form the foam mixture
liquid, which is transported out by the outlet.