top of page

Heatless Air Dryer

Summits manufature most reliable Heatless Desiccant Air Dryers with most advanced technology and reliability to ensure trouble free performance for ages.


Heatless compressed Air Dryers removes moisture in compressed air to a level of 10 ppm(w) by using “Pressure Swing Adsorption Technology”. Energy management controller to minimize purge loss Large desiccant beds for consistent dew point Outlet air quality according to ISO 8573 - 1, 7.2, Table 3, Class 3 & 2

Heatless Air Dryer

Heatless PSA Air Dryers

The compressed air leaving a compressor contains considerable quantities of water vapor. If the untreated air is supplied into the distribution lines, the moisture would condense to liquid water as it gets cooled. Condensed water is a major cause of downtime in compressed air systems. Air quality which was good enough for the old hand controlled valves or wide tolerance air tools is just not dry enough when used in today's sophisticated air systems. Water causes rust, pitting, blockages and freezes ups, with resultant component failure and product rejection. The only way to prevent condensation of water in airlines is to lower the dew point of the air in the system. It is less expensive to own and operate an air dryer than it is to live with the problems it can prevent. Drying compressed air doesn't cost . . . it saves.



Wet compressed air enters the drying tower from pre & oil removing filters, at the bottom and is directed by a non-lubricated switching valve. The wet air encounters dry desiccant and moisture is transferred from the air to the desiccant. The direction of air flow during drying is upflowed; design of the towers prevents fluidization of the desiccant. At the top of the dryer, the dry processed air is directed to the after the filter of the dryer through check valves. Approximately ten percent of the dry air is directed into the regenerating tower where it is depressurized to atmospheric pressure and is used to regenerate the desiccant. After removing the moisture from the desiccant, the purge air exits the dryers through a muffler and is blown out to the atmosphere. After a preset time based on the electronic controller, the dryer shifts towers. At tower shift, the regenerating tower is gradually repressurized, the switching valve sequentially shifts and the off-stream tower is depressurized. The switching and exhaust valves are controlled by solenoid valves.


  • Automobile

  • Breweries & Distilleries

  • Cement

  • CNC Machine shop

  • Co-generation Plants

  • Chemical

  • Food Processing

  • Foundry

  • General Engineering

  • Hospital

  • Instrumentation

  • Packaging

  • Paper Industry

  • Painting

  • Pharmaceutical

  • Power Plants

  • Printing

  • Rice mill

  • Sugar

  • Textiles

  • Textile processing

  • Toolroom


bottom of page