Desiccant-Membrane Hydrogen Dryers - DM Series

  • Removes only water vapor
  • Continuous drying
  • Low sample dew point
  • Fast response time
  • Rugged construction
  • Excellent corrosion resistance

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The Perma Pure DM Series Desiccant-Membrane Dryer is a compact and portable gas drying solution designed for applications requiring moisture protection. It removes water vapor from a flowing gas stream without affecting other gas components, making it suitable for high-purity environments. The dryer operates without electrical power or purge gases by combining Nafion membrane tubing with a molecular sieve desiccant. Water vapor selectively permeates through the Nafion tubing and is absorbed by the surrounding desiccant. This hybrid design combines the selectivity of membrane drying with the simplicity of desiccant-based systems. The unit is reusable and can be quickly recharged by replacing the desiccant. It features a rugged molded ABS housing with a clear window for monitoring desiccant condition and is available in two models: DM-060-24 and DM-110-24, offering different flow capacities and drying performance.

Use Cases

  • Portable gas drying applications
  • Moisture protection for gas sampling systems
  • Field and laboratory gas conditioning

Capabilities

  • Selective removal of water vapor using Nafion membrane technology
  • Continuous drying without electrical power or purge gas
  • Integrated desiccant system for moisture absorption
  • Reusable design with replaceable desiccant
  • Visual monitoring of desiccant condition via clear window
Perma Pure LLC

Perma Pure is a leading provider of high-performance gas conditioning solutions for the hydrogen industry. Leveraging proprietary Nafion membrane technology, the company specializes in moisture management for PEM fuel cells and electrolyzers, offering humidifiers and dryers that optimize system efficiency, reliability, and lifespan.

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