MOST 20-2B
5
PACIFIC CONSOLIDATED INDUSTRIES
350003 Rev D
SECTION II
2-1 FUNCTIONAL
DESCRIPTION
2-2
MOST OPERATING PANEL
The MOST Operating Panel contains the connecting port
necessary to refill the MOST with high-pressure oxygen
and the fittings necessary to provide distribution of the
oxygen. A valve (V-3) in the filling circuit allows the
release of pressure in the vent position. Without a vent
position, the full cylinder pressure would be constantly on
the fitting, making it impossible to remove or insert the
quick connect hose fitting. The operating Panel includes
two pressure gauges.
The Cylinder Contents Gauge (P1-1), indicates the pressure
of the remaining oxygen and therefore the remaining
quantity of oxygen. The Output Pressure Gauge indicates
the pressure of the oxygen being supplied to the Oxygen
Output Fittings and Hoses. Three quick connect Oxygen
Output ports and one quick connect Oxygen Input port are
located in the center of the panel. A vent port for the
internal pressure relief devices is also located on this panel
(See Fig 4-2).
Prior to attaching an Oxygen Hose to the MOST, the Flow
Selector must be placed on the opposite end of the Oxygen
Hose. The correct end has a small hand wheel to assist the
connection of the hose to the threaded fitting on the end of
the Flow selector, which is marked "INLET". Ensure that
the Flow Selector is set to "0" before connecting to the
hose.
There are three Oxygen Output quick connecting ports on
the MOST Operating Panel. Each port is equipped with a
protective plug attached to the panel by a lanyard. The
protective plug should always be in place when the
respective output fitting is not being used. The Oxygen
Output fittings are used to connect the tapered end of the
Oxygen Conducting Delivery Hose(s) to the MOST.
Pressure is applied on the hose as it is inserted into the
fitting. When fully engaged, the hose fitting is captured by
the output fitting. The oxygen is then free to flow through
the hose. The hose is released by grasping the fitting
mounted on the panel and twisting the fitting in a
clockwise direction. A one quarter turn will release the
hose fitting.
2-4 OXYGEN
INPUT
The MOST high-pressure composite wound cylinders are
designed for an operating pressure of 3,000 psig.
The MOST was designed as a functional component of the
Expeditionary Deployable Oxygen Concentration System
(EDOCS-120). The EDOCS-120 generates 120 liters per
minute (lpm) of USP 93% oxygen at 100 psig. It can also
deliver 60 lpm at 2,250 psig to fill the MOST. Each
EDOCS-120 is equipped with a stainless steel high-
pressure hose that may be used to connect the EDOCS-120
to the Oxygen Input fitting on the MOST Operating Panel.
There is no shut off valve or flow adjustment valve located
on the panel.
In order to release the fittings the filling
valve must be turned to the ‘vent’ position.
Although the MOST was designed for use with the
EDOCS-120, GOX Carts, H-Cylinders or any other
sources of USP grade oxygen may also be used. The
EDOCS-120 can deliver USP grade oxygen at 93% while
the latter systems can deliver USP grade oxygen between
90 to 100%
.
IDENTIFICATION LABEL
MOST 20-2B
Figure 2-1
2-3 OXYGEN
OUTPUT
