General
The Orca CO
2
Series Tank consists of an inner pressure
vessel encased within an outer carbon steel vacuum shell.
The container operates under low-to-medium pressure.
Safety relief devices are used to protect the pressure vessel
and vacuum casing, sized and selected in accordance with
ASME standards. They include a dual relieve valve system
to protect the pressure vessel, and a lift plate to protect
the vacuum casing (outer vessel). The Orca CO
2
Series
is designed and engineered for safe, reliable operations
and are durable enough to provide many years of trouble-
free operation. Strict compliance with proper safety and
handling practices is necessary when using an Orca CO
2
. We
recommend that all our customers re-emphasize safety and
safe handling practices to all their employees and customers.
While every possible safety feature has been designed into
the unit and safe operations are anticipated, it is essential that
every user of the Orca CO
2
carefully reads all WARNINGS
and CAUTIONS listed and enumerated in this safety section
and contained in the manual itself. Also read the information
provided in the safety bulletins for Carbon Dioxide gas.
Periodic review of this safety summary is recommended.
Safety — CO
2
Specic
Warning! Carbon Dioxide vapors in air
may dilute the concentration of
oxygen necessary to support or
sustain life. Exposure to such
an oxygen decient atmosphere
can lead to unconsciousness and
serious injury, including death.
Warning! Before removing any parts or
loosening of ttings empty the
cryogenic container of liquid
contents and release any vapor
pressure in a safe manner.
External valves and ttings can
become extremely cold and may
cause painful burns to personnel
unless properly protected.
Personnel must wear protective
gloves and eye protection
whenever removing parts or
loosening ttings. Failure to do
so may result in personal injury
due to the extreme cold and tank
pressure.
Warning! Accidental contact of liquid or
solid CO
2
with the skin or eyes
may cause a freezing injury
similar to a burn. Handle liquid so
that it will not splash or spill.
Protect your eyes and cover skin
where the possibility of contact
with liquid CO
2
cold pipe and
cold equipment, or cold gas
exists. Safety goggles or a face
shield should be worn if liquid
ejection or splashing may occur
or if cold gas may issue
forcefully from equipment. Clean,
insulated gloves that can easily
be removed and long sleeves are
recommended for arm protection.
Cuess trousers should be worn
over the shoes to shed spilled
liquid.
Caution! Do not use oxygen equipment
that is marked “For Oxygen Use”
in CO
2
service. Failure to comply
with these instructions may
result in serious damage to the
container.
Carbon dioxide
Carbon dioxide is a compound formed by the combination
of carbon and oxygen atoms in a 1:2 ratio expressed by the
chemical symbol CO
2
. The weight percentages of carbon and
oxygen are 27.3% and 72.7%, respectively.
Carbon dioxide is a gas at normal atmospheric temperature
and pressure. It is colorless and somewhat pungent, although
essentially odorless and is about 1.5 times more dense than
air.
Depending on the temperature and pressure to which it
is subjected, carbon dioxide may exist in the form of a
solid, liquid or gas. At a temperature of 69.9°F (56.6°C)
and a pressure of 60.4 psig (417 kPa), CO
2
can exist
simultaneously in all three phases. This condition is known
as the triple point. The phase diagram for CO
2
is shown in
Figure A.
Safety
6
Product Manual - Orca
™
CO
2
Series MicroBulk Delivery System
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