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Membranes

Membranes

The Nuvair Nitrox System uses a semi permeable Permia membrane to produce O2 rich air (Nitrox). The Nitrox at up to 40% O2 mixture, can then be compressed with an oil lubricated high-pressure compressor into scuba bottles or storage cylinders for later use, or with a low-pressure compressor for immediate delivery to divers. A very simple procedure.

Please contact us for more information, download a PDF brochure or
to place your order or as questions click enquire.

Enquiry Download Pdf

The “New & Improved” NUVAIR membrane system is up to 20% more efficient and easier to use when producing 40% O2, and can produce almost double the volume of the old system at 32% O2. This can mean saving $’s on the low pressure compressor and membrane as a smaller size may handle the same job. The Nuvair system requires an air source to supply air to the membrane for separation. This air source (supply air) can be from high-pressure storage tanks or from a low-pressure compressor. First, the supply air pressure must be reduced to 80-300 PSI for use in the membrane. A regulator is used to adjust the input pressure and volume of nitrox to be made. After the regulator the air travels through filtration to ensure a proper air quality that will not damage or plug the membrane fibres. After the filtration the air is heated to a stable temperature that is constant and optimal for the membrane permeation. This temperature is about 110 degrees F. After the heater the air enters the membrane. The Nuvair membrane is made up of thousands of hollow fibres. Oxygen permeates faster than nitrogen through these fibers. At the nitrogen outlet there is a fixed orifice that will allow the right amount of nitrogen to escape at maximum output to produce about 44% O2 at the permeate outlet (O2 rich gas). The permeate exits the membrane into a static mixing tube that allows ambient air to mix with permeate. The gas mixture is then analyzed with an inline sensor before delivery to the compressor for compression. As the operator increases the input pressure on the regulator, the volume of nitrox produced is increased as well as the O2% of the total gas mix. Decreasing input pressure will lower the nitrox O2% mix.

After using your Nuvair Nitrox system you will notice that different O2 percentages match certain input pressures. These input pressures will be repeatable. Simply said, if today your compressor pumps 36% O2 when the input pressure to the membrane system is at 126 PSI. The next time you want to produce 36% O2, just adjust the pressure to 126 PSI.

SIMPLE Complete “Turnkey” operation
Adjust the regulated input to supply the desired O2%
Only 1-hour operator training required – Certification is issued.
2 Hour average installation
Minor HP compressor modifications only in most cases
RELIABLE Mix accurate to one tenth of 1%
Uses 220V at 10 Amps
Up to 20 year life
Limited 3 year warranty
VERSATILE Produces from 21% to 40% oxygen
Unlimited continuous on-site production
Low pressure or high pressure supply
No size or flow limits
Banked, hot fills, or continuous Nitrox output
Ideal for remote sites and live-aboards
Compact and lightweight
Trimix systems available – Only a small up-grade
SAFE O2 levels of up to 40%
Treat like air – No oxygen cleaning of cylinders required.
COST EFFECTIVE – No oxygen required
High volume output means no waiting for fills
Easy maintenance (1 inexpensive filter change each quarter)
Operates on Grade D or E Air
Use your existing oil lubricated compressor*
No hidden costs
Some compressors may not be suitable for Nitrox use.
Compare to O2 Blending  РNo O2 cleaning of tanks or equipment
No blending courses required
No oxygen tank rentals
No Expensive Blending Panels
No frustrating delays for customers
No need to have Oxygen cylinders in your store – Less risk

Please contact us for more information, download a PDF brochure or
to place your order or as questions click enquire.

Enquiry Download Pdf





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