Newport Breeze E150 - Air Port; Auxiliary Flow Port; Main Flow Port; Air Oxygen Mixer

2.4 AIR 1 OXYGEN MIXER
The air/oxygen mixer has the dual function of mixing air and oxygen to
a desired
F102 and regulating the output mixture to a preset pressure.
The pressure of the air and oxygen supply gases are lowered to 2.0
kg/cm2 (28.5 psi) by means of a diaphragm and regulator assembly.
The regulated gases are then mixed and supplied at the desired
F102.
The input pressure of the gases must be between 40 - 60 psi for the
mixer to maintain accurate
F102 and regulate the output pressure.
Figure
2.1 displays the four output ports of the mixer.
(1) Main Flow port:
Supplies the main flow of the unit.
(2) Continuous Flow port:
Supplies bleed flow to the atmosphere. This flow is the
minimum flow required out of the mixer to maintain the
F102
within specifications.
(3) Auxiliary Flow port:
Supplies the Spontaneous flow and Auxiliary flow to the
unit.
(4) Air Port:
Supplies gas to the pneumatic control circuit and is equal to
the input pressure of the air side.