PCI MOST 20-2B User manual

MOST 20-2B
PACIFIC CONSOLIDATED INDUSTRIES 350003 Rev D
MOBILE OXYGEN
STORAGE TANK (MOST)
OPERATIONS AND SERVICE MANUAL
Including
ILLUSTRATED PARTS BREAKDOWN
MODEL MOST 20-2B
PART NUMBER – 793080-002*
* Protected under US Patent No. 2004-0226381-A1
Additional Patents Pending
PACIFIC CONSOLIDATED INDUSTRIES
12201 Magnolia Avenue
Riverside, California 92503
Telephone [phone] Fax [phone]

MOST 20-2B
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PACIFIC CONSOLIDATED INDUSTRIES 350003 Rev D
TABLE OF CONTENTS
MOBILE OXYGEN STORAGE TANK
(MOST)
Topic Page
Safety Summary ii
Dangerous Pressures ii
Working with Oxygen ii
Guidelines for Handling Cylinders ii
Safe Practices iii
Storage, Maintenance and Handling iii
Use iii
Hydrostatic Testing iii
Certified Testing Station iii
SECTION I
1-1 Introduction 1
1-2 System Overview 1
1-3 Apparatus Kit 4
SECTION II
2-1 Functional Description 5
2-2 MOST Operating Panel 5
2-3 Oxygen Output 5
2-4 Oxygen Input 5
SECTION III
3-1 Operating Instructions 6
SECTION IV
4-1 Filling Instructions 7
SECTION V
5-1 Maintenance Instructions 9
5-2 General Information 9
5-3 Maintenance 9
5-4 User Maintenance 9
5-5 General Inspection 9
5-6 Testing of Flow Control Valve 10
SECTION VI
6-1 Transfilling the MOST 11
6-2 Purpose 11
6-3 Transfilling Procedure 11
SECTION VII
7-1 Illustrated Parts Breakdown (IPB) 13
SECTION VIII
8-1 Trouble Shooting 23
LIST OF FIGURES
SECTION IX
9-1 Recommended Spare Parts 24
FIGURE Page
Figure 1-1 Cylinder Contents Gauge 1
Figure 1-2 MOST P&ID Schematic 2
Figure 2-1 MOST 20-2B 5
Figure 4-1 Cylinder Shutoff Valves 7
Figure 4-2 MOST Operating Panel 8
Figure 6-1 MOST Operating Panel 11
Figure 7-1 MOST, Medical Oxygen Storage 16
Tank (Sheet 1)
Figure 7.1.1 MOST, Medical Oxygen Storage 17
Tank (Sheet 2)
Figure 7-2 Door Assembly, Panel 18
Figure 7-3 Tubing Assembly 19
Figure 7-4 Panel Assembly 21
Figure 7-5 Plate Assy, Mounting Cyl. 22
Figure 7-6 Adapter Assembly 23
TABLE Page
Table 1-2 MOST P&ID Tag Listing 3
Table 5-1 Flow Control Valve Flow Rate 10
at 50±5 psig
Table 6-1 Capacity of MOST 20-2B After 11
Transfilling
Table 7-1 MOST, Medical Oxygen Storage 15
Tank (BOM)
Table 7-2 Door Assembly, Panel (BOM) 18
Table 7-3 Tubing Assembly (BOM) 19
Table 7-4 Panel Assembly (BOM) 20
Table 7-5 Plate Assy, Mounting Cyl. (BOM) 22
Table 7-6 Adapter Assembly (BOM) 23
Table 8-1 Trouble Shooting Guide 23
Table 9-1 Recommended Spare Parts 24

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PACIFIC CONSOLIDATED INDUSTRIES 350003 Rev D
SAFETY SUMMARY
The following are general safety precautions that are not
related to any specific procedure and therefore do not
appear elsewhere in this technical manual. These are
general safety precautions and instructions that people
must understand and apply during many phases of
operation and maintenance to ensure personal safety and
health and the protection of Government property.
Throughout this manual you will see three types of
notations which contain special information:
NOTE: Provides additional information that may be
helpful in performing a specific task.
WARNING: Provides information about conditions
which require special attention and precautions to
avoid serious injuries.
CAUTION: Provides information about conditions
which require special attention and precautions to
avoid equipment damage.
Be sure to read the information in the notes, cautions, and
warnings carefully, and consult someone experienced in
handling oxygen equipment about any issues that are
unclear. Additional safety guidelines related to specific
components of the MOST are described in the appropriate
chapters.
DANGEROUS PRESSURES
Care must be taken during operation to ensure that all
fittings are proper and tight. All system components must
be compatible with pressure applied. Personnel must be
protected by a minimum of safety glasses when transfilling
or repairing.
WORKING WITH OXYGEN
Oxygen used in the medical profession can be very
hazardous. Although oxygen does not burn, it does support
combustion. A Material Safety Data Sheet is available at
Pacific Consolidated Industries.
Oxygen systems must be properly cleaned and inspected in
accordance with Compressed Gas Association pamphlet
G-4.1 prior to use to ensure that no combustible materials
remain in the connecting piping and fittings. If you are not
familiar with oxygen cleaning procedures contact the
Compressed Gas Association or Pacific Consolidated
Industries prior to putting oxygen into your piping and
distribution system. The Compressed Gas Association’s
web site is www.cganet.com.
Observe strict cleanliness procedures when fabricating and
connecting the oxygen piping.
Only operate the oxygen equipment in a well-ventilated
area.
GUIDELINES FOR HANDLING
CYLINDERS
While the principal function of the MOST is to provide
gaseous oxygen for medical use, conventional oxygen
cylinders are still an integral part of the method for
supplying backup oxygen and for mobile oxygen
requirements (for example, on board ambulances).
Oxygen cylinders are under extremely high pressure (as
much as 2,250 psi) and present a number of associated
hazards as a result.
WARNING: The sudden release of this pressure,
whether by puncture, dropping, or loss of pressure
can easily turn the cylinder into a projectile
hurtling across the ground and through the air.
Take extreme care when filling cylinders and
when handling charged cylinders.
WARNING: Do not drag or slide cylinders or lift
them by the pressure cap; this may damage the
cylinders and cause the sudden release of,
cylinder pressure. Use a suitable hand truck,
forklift, roll platform, or similar device to move
cylinders.
WARNING: Do not drop cylinders or permit them
to strike against each other or other surfaces; this
may damage the cylinders and cause the sudden
release of cylinder pressure. Firmly secure
cylinders during moving and transport.
WARNING: Do not fill cylinders too rapidly.
Excessive heat may build up in the gas and result
in a failure of the seals in the cylinder valves and
possible ignition.

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PACIFIC CONSOLIDATED INDUSTRIES 350003 Rev D
WARNING: Periodically check the surface
temperature of the cylinders during charging
operations. Allowing excessive heat to build up in
the gas will result in a failure of the seals in the
cylinder valves and possible ignition.
WARNING: Never shut off a line without verifying
that a suitably rated relief valve or bleed off valve
has been installed between the two shutoff valves.
Failure to do so can result in a rupture of the line
and possible ignition.
WARNING: Never charge cylinders with oxygen
that are marked for other gases. Always check the
cylinder markings and ensure that only cylinders
marked for oxygen are charged with oxygen.
Failure to do so can result in contamination of the
patient oxygen supply.
SAFE PRACTICES FOR HANDLING AND
OPERATING OXYGEN EQUIPMENT
Oxygen used in the medical profession can be very
hazardous. Although oxygen does not burn, it does support
combustion. A material, which will not burn in air, may
burn in a high-pressure pure oxygen - such as the metal in
oxygen regulators or cylinders. Some general guidelines
for minimizing the chance of fire are provided below:
STORAGE, MAINTENANCE AND
HANDLING
•Do not allow smoking around oxygen.
•Store oxygen in clean, dry locations and away
from direct sunlight.
•Do not allow valves, regulators, gauges, and
fittings to come into contact with oils, greases,
organic lubricants, rubber or any other combustible
substance.
•Make sure that any cleaning, repair or transfilling
of oxygen equipment is performed by qualified,
properly trained staff.
•Do not work on oxygen equipment with ordinary
tools. Designate special tools, clean them and store
them for “Use With Oxygen Equipment Only”.
•Use plugs, caps and plastic bags to protect “off
duty” equipment from dust and dirt.
USE
•Make sure that personnel using oxygen equipment
are adequately trained in its operation and in
oxygen safety and have knowledge of
manufacturer’s instructions for using the
equipment.
•Open the cylinder valves slowly and completely to
minimize the heat produced and achieve the
desired flow conditions within the equipment.
WARNING: Composite cylinders require
Hydrostatic Testing at five (5) year intervals.
Check Hydrostatic Test plate prior to filling to
ensure cylinders testing is current.
Relief Valves require testing at (2 to 3) year
intervals to ensure accuracy.
NOTE: IT IS RECOMMENDED THAT THE
TESTING BE PERFORMED AT THE PCI
FACILITY
HYDROSTATIC TESTING
Cylinders must be re-inspected and hydrostatically retested
at least once every five years. Testing must be performed
in accordance with DOT-CFFC-13 tested to 5/3 of the
marked service pressure, 49 CFR S 180.205, the latest
edition of CGA pamphlet C-6.2, and DOT-E 13250.
CERTIFIED TESTING STATION
The testing facility must be approved under DOT 49
CFR-180.205, part 1, part 107.

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PACIFIC CONSOLIDATED INDUSTRIES 350003 Rev D
1-1 INTRODUCTION
The MOST 20-2B of P/N 793080-002 references the fact
that the cylinder liner is made of brass and is designated
for 2,250 psi fill pressure.
1-1.1 Indications For Use
The Mobile Oxygen Storage Tank (MOST) is intended to
provide USP 93% (+7%/-3%) oxygen at 50psig nominal
pressure for supplemental oxygen use only.
1-1.2 Mobile Oxygen Storage Tank (MOST)
The MOST was initially designed to meet the demands of
the mobile medical oxygen delivery/transport. The
availability of transportable medical oxygen is a prime
factor in aiding trauma patients.
Initially, oxygen demand was met by use of high-pressure
steel oxygen cylinders. Cylinders satisfied the requirement
for oxygen but created unacceptable logistical burdens
associated with transportation, refill, and storage.
The introduction of the liquid oxygen based systems
reduced the size and weight of the oxygen delivery
equipment and replaced many applications previously
filled with the oxygen cylinders, but created additional
problems. Liquid oxygen cannot be stored. It must remain
below -297°F to stay in a liquid state and it rapidly boils
off losing as much as 5% per day. Transportation over long
distance results in a high percentage of loss.
There is an urgent need for an oxygen transportation
system that can be stored and stockpiled, ready for
immediate use, transported with the medical unit and
totally self sufficient for as long as required. It also has to
be easy to operate dependable and as small and light as
possible. The Mobile Oxygen Storage Tank (MOST) has
been developed to address these requirements.
1-2 SYSTEM OVERVIEW
The Mobile Oxygen Storage Tank (MOST) is a storage and
distribution system consisting of lightweight, high strength,
high-pressure composite wound brass lined cylinders secured
within a rugged case. The MOST contains 10,000 liters of
oxygen when filled to 2,250 psig. The MOST has a maximum
flow capability of 150 lpm at 50 psig (50 lpm per Oxygen
Output fitting).
The operating panel on the end of the unit contains the
following:
●One high pressure Oxygen Input fitting is
provided for filling the MOST from various high-
pressure sources.
●A Cylinder Contents Gauge indicates the cylinder
pressure (both cylinders combined).
●Three Oxygen Output fittings are provided to
attach the Oxygen Conducting Delivery Hose(s)
that supply oxygen to the patients.
●An Output Pressure Gauge indicates the output
pressure of the oxygen.
A Cylinder Contents Gauge (P1-1) is provided on the long
side of the case. This pressure gauge is marked in liters
indicating the liters of oxygen remaining in the MOST. It
is placed in this position to allow reading of the remaining
capacity from either the side or the end of the unit. When
filled to 2,250 psig, the MOST contains 10,000 liters of
oxygen (See Fig 1-1).
Cylinder Contents Gauge
Figure 1-1
SECTION I

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PACIFIC CONSOLIDATED INDUSTRIES 350003 Rev D
MOST P&ID Schematic
Figure 1-2

MOST 20-2B
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Tag No Description PCI Part No
ADP-1 ADAPTER- CGA540 TO HP QUICK CONNECT - ST. STL 790510-012
BD-1 BURST DISK - 3300 PSI – BRASS/MONEL 582388-004
BD-2 BURST DISK - 3300 PSI – BRASS/MONEL 582388-004
C-1 SERVICE CONNECTOR – SCHRADER FEMALE QUICK CONNECT ST. STL 581706-001
C-2 SERVICE CONNECTOR – SCHRADER FEMALE QUICK CONNECT ST. STL 581706-001
C-3 SERVICE CONNECTOR – SCHRADER FEMALE QUICK CONNECT ST. STL 581706-001
C-4 FILL CONNECTOR – SWAGELOK HP FEMALE QUICK CONNECT 581438-019
CV-1 MINIMUM PRESSURE CHECK VALVE – 10 PSIG – ST. STL 7905674-036
CV-2 MINIMUM PRESSURE CHECK VALVE – 5 PSIG – ST. STL 7905674-045
CV-3 ISOLATION CHECK VALVE – 1 PSIG – ST. STL 7905674-044
CV-4 ISOLATION CHECK VALVE – 1 PSIG – ST. STL 7905674-044
CYL-1 STORAGE CYLINDER – BRASS LINED – 2250 PSI – 1.09 CU. FT 582515-001
CYL-2 STORAGE CYLINDER – BRASS LINED – 2250 PSI – 1.09 CU. FT 582515-001
F-1 FILTER – SINTERED STAINLESS STEEL 581530-007
F-2 FILTER – SINTERED BRONZE VENT SCREEN 581677-002
FCV-1 FLOWMETER – 0-15 LITERS 792975-001
FVC-2 FLOWMETER – 0-15 LITERS 792975-001
FVC-3 FLOWMETER – 0-15 LITERS 792975-001
OR-1 ORIFICE - .047 INCH DIA. – STAINLESS STEEL 581996-008
PI-1 PRESSURE GAUGE – CYLINDER – 0-5000 PSI - BRASS 793674-039
PI-2 PRESSURE GAUGE – CYLINDER – 0-5000 PSI - BRASS 793674-039
P1-3 PRESSURE GAUGE – DELIVERY – 0-100 PSI - BRASS 793674-038
PRV-1 PRESSURE REDUCING VALVE - BRASS 792993-001
RV-1 RELIEF VALVE – CYLINDER – 2360 PSI – STAINLESS STEEL 791756-501
RV-2 RELIEF VALVE – DELIVERY PRESSURE – 60 PSIG - STAINLESS STEEL 793503-602
V-1 SHUTOFF VALVE – CYLINDER - BRASS 793674-047
V-2 SHUTOFF VALVE – CYLINDER - BRASS 793674-047
V-3 VENT VALVE - BRASS 793674-047
MOST P&ID Tag Listing
Table 1-1

MOST 20-2B
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PACIFIC CONSOLIDATED INDUSTRIES 350003 Rev D
Eight handles, two on each long side of the MOST and two
on the top at each end, are provided for ease of
transportation.
The exterior dimensions of the MOST are:
Length 37.25”
Width 27.25”
Height 15.50”
The MOST weighs approximately 200 pounds fully
charged to 2,250 psig.
Operating Temperature: -40°F to 140°F
The MOST contains an Apparatus Kit, which includes the
equipment required to distribute the oxygen to up to three
patients concurrently. To access the Apparatus Kit unlatch
the MOST top cover and tilt it to the up position.
The Apparatus Kit contains:
•Three Oxygen Conducting Delivery Hose(s), 20 feet
long wound on individual holders. One end of the
hose has a quick connect fitting that attaches to the
Oxygen Output connector on the MOST Operating
Panel. Shown on Figure 4-2, Item 5. The other end of
the hose has a fitting that attaches to the Flow
Selector.
•Three Flow Selectors receive the oxygen from the
Oxygen Conducting Delivery Hose(s) at 50 psig. The
Flow Selector regulates the output flow from each
output. The Flow Selectors are adjustable in quantities
of 0.0, 0.5, 1, 2, 3, 4, 5, 6, 8, 10, and 15 lpm.
1-3 APPARATUS KIT

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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

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PACIFIC CONSOLIDATED INDUSTRIES 350003 Rev D
SECTION III
3-1 OPERATING INSTRUCTIONS
WARNING: Ensure no flames or sparking devices
are in the immediate area. Ensure Oxygen
Delivery Hose, Flow Selector, and Oxygen
Output connections are clean and free of debris.
Use only authorized cleaning procedures.
1. Open top lid of case to access accessories.
2. Remove Oxygen Conducting Delivery Hose(s) and
Flow Selectors as required.
3. Inspect hoses for visual cracks, kinks, abrasion, etc.
Do not use if damaged.
4. Unwind hose from reel, unthread hose end from reel
fitting and return reel to storage tray.
5. Remove caps from flow control ports and replace caps
in tray.
6. SLOWLY OPEN the Cylinder Shutoff Valves (V-1 &
V1-2).
7. Check Output Pressure Gauge. Pressure should read
50 psi + 5 psi. Re-adjust if required. To adjust the
regulator if it is out of range, open case and turn the
tee handle on top of the regulator (RV-2) until it is
back in range. NOTE: The regulated pressure cannot
exceed the relief valve which is set at 60 psi. If the
pressure is set above the relief valve setting it will
result in loss of product.
8. Close top lid of case and secure MOST in desired
position.
9. Connect Flow Selector to Oxygen Delivery Hose.
Ensure Flow Selector is closed (set to 0).
10. Remove the Access Panel.
11. Remove protective cap on Oxygen Outlet Port.
12. Connect a Oxygen Delivery Hose to each Oxygen
Output Port on MOST (C-1, C-2 & C-3). Ensure that
the Quick Connect Fittings are fully engaged and
captured.
13. Attach desired patient interface equipment to the Flow
Selector.
14. Adjust flow control on Flow Selectors to prescribed
level.
CAUTION: Flow selector MUST be connected in line
prior to connecting the Delivery Hose to the
MOST OUTLET PORT.
15. After Use Steps:
●Rotate collar on the output fitting to remove hose.
●Replace plugs on outlet fittings.
●Disassemble hose and flow controls.
●Place caps on flow controls.
●Open lid to retrieve Reels.
●Attach the hose to the reel fittings.
●Rewind hose on reel, secure with Velcro strap.
●Return hoses and flow controls to tray.
WARNING: Discontinue use when cylinder pressure is
less than 50 psi.
WARNING: When utilizing patient interface
equipment (cannula, mask, ventilator), refer to
interface equipment operations manual for proper
usage.
CAUTION: Flow selector MUST be connected in line
prior to administration of oxygen.