MNG “E” Series nitrogen generators use patented membrane technology to produce an uninterrrupted supply of gaseous nitrogen, on site. This compact system is ideally suited for low-flow applications that presently employ high-pressure gas cylinders or dewars of nitrogen. With Membrane Nitrogen Generators (MNG), the inconvenience of gas cylinders and liquid dewars is eliminated. Nitrogen is generated at your location, continuously and reliably, requiring only a supply of compressed air.


CGT INC. membrane technology works by filtering oxygen from a stream of compressed, dry air via hundreds of thousands of hollow, polymeric fibers – each about the diameter of a human hair – to produce gaseous nitrogen. The flow and purity of the nitrogen are at your control, assuring the perfect match to your nitrogen requirements. And, the automated Membrane Nitrogen Generators (MNG) system virtually operates itself without requiring the attention of an operator.

MNG Membrane Nitrogen Generators



Modular/ Expandable: Systems are easily upgraded by simply adding additional membrane modules. Our units grow as your business grows!

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Multistage Filtration: Each nitrogen generator incorporates the most advanced filtration systems available on the market today. Protecting the membrane from compressed air contamination, ensuring years of trouble-free operation.

energy savings

Energy Efficient: CGT membranes are the most efficient on the market with the lowest air/ nitrogen ratio available. Control systems are available to shut the unit off when not in operation.

plug and play

Plug and Play Operation: Connect a compressed airline to the unit and you are producing nitrogen within a few minutes.


Reliability: With no moving parts, CGT membrane nitrogen generators are extremely reliable.


Model Nitrogen Purity Approximate Dimensions & Weights
95% 96% 97% 98% 99% 99.5%
Flow Rate at the Outlet (scfh) Height Width Depth Weight
MNG-1010 45 37 31 24 17 13 51″ 30″ 18″ 206 lbs
MNG-1110 74 63 52 41 29 21 51″ 30″ 18″ 212 lbs
MNG-1210 134 113 92 73 51 38 51″ 30″ 18″ 215 lbs
MNG-1220 268 226 184 146 102 76 51″ 30″ 18″ 230 lbs
MNG-1230 402 339 276 219 152 114 51″ 30″ 18″ 245 lbs
MNG-1240 536 452 368 292 204 152 51″ 30″ 18″ 260 lbs

*Performance is based on 77˚F, 101.5 psi at the Membrane and is +/-5%. Data will vary with temperature and pressure.