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AirSep
Corporation
3.0
System Description
3.1
General
Air Contains 21 % oxygen, 78% nitrogen, 0.9% argon, and 0.1% other gases.
AirSep PSA Oxygen units separate oxygen from compressed air through a unique
Pressure Swing Adsorption (PSA) process. The compressed air flows through a
filter assembly before the air enters the adsorber vessels. A particulate filter
removes condensed water, oil, dirt, scale, etc. from the feed air, and then, a
separate coalescing filter (mounted on most of the models) removes additional oil
and water vapor.
The oxygen generator uses, in its adsorber vessels, an inert ceramic material
called molecular sieve to separate compressed air into oxygen and the other
gases. The unique properties of molecular sieve allow it to attract, or adsorb,
nitrogen physically from air under pressure. This allows oxygen to exit the
adsorbers as a product gas. The process valves on the oxygen generator then
direct the oxygen to the oxygen receiver for storage until needed by your
application.
While one adsorber produces oxygen, the other depressurizes to exhaust the
waste gases it adsorbed (collected) during the oxygen production cycle. The entire
oxygen generating process is completely regenerative, which makes it both reliable
and virtually maintenance-free. The molecular sieve does not normally require
replacement.
This instruction manual serves as the guidelines for the standard AS-A thru AS-P
models. Refer to the illustrations, located in the Appendix A of this instruction
manual, for the detailed flow diagram, electrical schematic, and the general
arrangement drawings of the oxygen generator models referenced in this
instruction manual.
AS-A—AS-P Series Instruction Manual
3-1
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