Industrial Oxygen

An oxygen concentrator has two cylinders filled with zeolite pellets. Air is compressed to a few times normal atmospheric pressure (typically 20 psi/138 kPa gauge, or 2.36 atmospheres absolute) and passed through the zeolite bed. The bed adsorbs the nitrogen, leaving nearly-pure oxygen (plus small amounts of argon, CO₂, water vapor and other minor atmospheric components) in the output.
The zeolite becomes saturated within a few seconds, at which point the compressed air is fed to the second cylinder while the first is vented to ambient pressure, and the nitrogen escapes. When the second cylinder is saturated, the compressor switches back to the now-available first, and the cycle repeats.
Older units cycled with a period of about 20 seconds, and supplied up to 5 liters per minute of 90+% oxygen. Since about 1999, units capable of supplying up to 10 lpm have been available.

Head Office
No:27/12A, Flower Lane, Pepiliyana Road, Nugegoda
Phone No : 94 773 963 327
Fax : 94 114 301 668
Factory
Templeburg Industrial Estate, Panagoda, Homagama.
Phone No: 94 112 751 405 / 94 777 793 779