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Kahn - Model MPS Series -Heaterless Dryer for Compressed Air and Gas Dryers
The need for clean, pure, moisture-free compressed air and gas is critical. Moisture and contaminants are found in all compressed air and gas systems. causing rust and corrosion in your pneumatic tools, contaminating process flows, clogging and damaging delicate pneumatic instrumentation. When freezing temperatures are encountered, condensation trapped in air systems will freeze, causing catastrophic failure in pneumatic lines. Heaterless regenerative dryers (adsorptive pressure-swing types) are generally preferred by pneumatic specialists because of their simple, reliable design and because of the very low dew points that can be attained ... to - 100°F ... in large volumes of compressed air, at minimum cost.
The drying operation uses an inert, hygroscopic material with an enormous surface to mass ratio. As air is passed through this desiccant, moisture is absorbed onto the porous surface. To provide continuous drying, the moisture is removed from the desiccant by passing a small amount of dry, low pressure air through the off-line tower for a pre-set interval. Since the partial pressure of moisture in the bed is higher than the partial pressure of moisture in the purge air, the desiccant releases its absorbed moisture into the purge air. Purge air and moisture are then vented to the atmosphere.
By using twin towers and an automatic cycling system, one tower is always drying while the other is regenerating, thereby providing a continuous, uninterrupted flow of dry air or gas.
Kahn dryers are available for almost all air and gas requirements.
- -40°F line pressure dew point
- ASME Coded desiccant vessels*
- NEMA 10 minute cycle, fully automatic operation
- NEMA 1 electrical construction
- Fail safe operation. Continuous flow in case of power failure
- Non lubricated flow control valves
- Pressure gauges on each desiccant vessel*
- Gradual repressurization for longest desiccant life
- Relief valve on outlet manifold
- Full charge of desiccant
- Heavy duty angle and channel support base*
- 110V/60Hz/1#-200W
*Floor mounted units (MPS-25B and larger)
- -100°F line pressure dew point
- NEMA Class 4, 4X, 7, 12 electrics
- Entrainment separators, Coalescing prefilters After-filters
- Manual by-passes
- Purge rate flow meter and valve
- Failure to cycle alarm
- Easy to read color change dew point indicator with isolation valve
- Solid state dew point alarm
- Instrument panel
- Temperature gauges
- Steam jet ejector for vacuum purge
- Special designs available for flows up to 30,000 SCFM, 9000 PSIG
- Construction for corrosive environments, explosive process gases
- See data sheet B/C 3141 for more information.