Nitrogen Generators - Monobed and Dual-Bed

The Balston Series Monobed and Dual-Bed Nitrogen Generators produce up to 99.99% pure, compressed nitrogen at a dew point of less than -40° F (-40° C) from nearly any compressed air supply. The generators are designed to continually transform standard compressed air into nitrogen at safe, regulated pressures without operator attention.

How the Technology Works

The Balston Series Monobed and Dual-Bed Nitrogen Generators utilize a combination of filtration and pressure swing adsorption technologies. High efficiency pre-filtration pretreats the compressed air to remove all contaminants down to 0.1 micron. Air entering the generator consists of 21% oxygen and 78% nitrogen. The gas separation process preferentially adsorbs oxygen over nitrogen using carbon molecular sieve (CMS). At high pressures, the CMS has a greater affinity for oxygen, carbon dioxide and water vapor than it does at low pressures. By raising and lower the pressure within the Monobed / Dual-Beds, all contaminants are captured and released, leaving the CMS unchanged. This process allows the nitrogen to pass through as a product gas at pressure. The depressurization phase of the CMS releases the adsorbed oxygen and other contaminant gases to the atmosphere.


NNI Mono-Bed Performance SCFH of N2 at % Purity:
Model 99.95% 99.9% 99.5% 99% 98% 97% 95%
MB 200 98 135 200 241 311 361 433
MB 400 200 248 400 482 622 721 865
MB 800 361 496 800 964 1,244 1,442 1,730
MB 1000 451 619 1,000 1,205 1,555 1,802 2,162
MB 1200 572 785 1,200 1,447 1,867 2,166 2,597

NNI Dual-Bed Performance SCFH of N2 at % Purity:
Model 99.99% 99.95% 99.9% 99.5% 99% 98% 97% 95%
DB 1200 284 532 736 1,200 1,490 1,894 2,200 2,850
DB 1600 378 714 992 1,600 2.010 2,555 2,975 3,845
DB 1900 452 852 1,178 1,900 2,360 3,000 3,394 4,516
DB 2500 602 1,136 1,571 2,500 3,148 4,000 4,659 6,022
DB 4000 943 1,769 2,480 4,000 5,028 6,388 7,442 9,618