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Ask the Experts Metals

Which nitrogen supply makes sense—on-site generation or liquid delivery?


Steve Ruoff
Metals Processing Segment Manager

If your operation uses nitrogen, you may wonder when on-site generation makes sense instead of liquid delivery. Here’s some information to help you understand if on-site nitrogen generation may
be the supply mode for you . . .

The appropriateness of on-site gas generation depends on many factors—nitrogen flow and purity are the most important ones. Flows with a steady or sufficient baseline rate can be great fits for on-sites. Periodic or erratic flow patterns can also be appropriate if there is a suitable baseline flow or the volumes, pressure and purity are sufficient to allow
gas storage that covers peak flows. Also, the lower the purity requirement, the greater the fit (although high purity is okay at higher volumes). Other factors you should consider include local power cost and the pressure that’s required.

There are no firm rules defining when you should switch from delivery to an on-site system. However, with our extensive experience in on-site technologies and gas delivery, we can help you determine your optimal supply mode. For an assessment of your operation, give us a call at 800-654-4567; mention code 749.

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