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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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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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