MD-Series Nafion Gas Dryers from Perma Pure

Water causes many of the maintenance problems with gas analyzers. Eliminate these problems with the MD-Series of Nafion Gas Dryers by Perma Pure. These dryers selectively remove water from gas samples without removing analyte gases. No routine maintenance is required, since the dryers are ruggedly constructed, with no moving parts and very high corrosion resistance.

Gas sample analysis requires a clean, dry sample to produce the most accurate and reliable results. Filters remove entrained particles, but removing moisture from a sample without affecting analytes is not so simple. Chiller/condenser, desiccant, and permeation dryers all typically suffer analyte loss during the drying process, but Perma Pure dryers constructed of Nafion do not. Nafion, a chemical modification of Teflon, is selectively permeable to water, but otherwise shares the chemical resistance of Teflon. Nafion tubing removes water vapor from gas streams while the rest of the gas sample passes unchanged. Water escapes from the exterior of the tubing continuously while the sample dew point is reduced to as low as -45°C (only 75 ppm of water).

MD-Series Nafion dryers are manufactured exclusively by Perma Pure Inc. For more information visit our website at permapure.com, e-mail to info@permapure.com, call 800/337-3762 (in NJ 732/244-0010) or fax 732/244-8140.