WORKING PRINCIPLE

The saturated compressed air enters in air - to - air heat exchanger (Pre-cooler / Re-heater). Here the incoming hot air is cooled by the out going cold air. This is basically an energy saving heat exchanger. It reduces the load on the  refrigeration system.  The Pre-cooled incoming air enters in the Air-to- Refrigerant heat exchanger further reducing the air temperature to specified dew point 2˚c- 4˚c. The air leaving this evaporator is directed to the cyclone separators and water vapor Condensate liquid droplets removed automatically by SAI Automatic Drain Valve. The Hot Gas by-pass valve maintains constant load to the refrigeration system.
 

SALIENT FEATURES

• Compact Design
• Running cost is Very Low
• Hot Gas by-pass circuit for partial Load.
• Maintains Constant Pressure Dew Point
• Auto Drain Valve Provided for cyclone separator
• Non-cyclic System
• Low Pressure Drop
• Environment Friendly system
• Compressor safety through maintain Low/High
  constant Pressure
   

Note : High Pressure / flow range can be offered on request. Operating Pressure standard at 14kg/cm

Heatless Dryer

Heat less dryer works on the principal of absorption. regenerative air dryers use desiccant media absorbs moisture contaminate from compressed air. The desiccant media can be regenerated by purging air and remove moisture it collect and remove again and again. So the dryers of the compressed air achieved up to atmospheric -40˚c dew point. The traditional refrigeration heat less dryer does not provide sufficient air quality required for special application. SAI regeneration heatless dryer contains smooth uniform achieved alumina balls size that prevents channeling of compressed air flow, which maintains low bed velocities. This maintains air contact time for efficient moisture removal and minimal pressure drops. SAI have electronic control timer for pneumatically pilot valves are chosen for long life and high air flow. A pre filter. oil removing filter, after filter offering purification to 5 micron can be specified. Purge loss and pressure drop are kept at a minimum resulting in lower operating costs.
 

WORKING PRINCIPLE

During an operating cycle inlet air directed to pre filter, here moisture and dust particles are removed then air enters to oil removing filter here we remove flooded oil. As wet air flows through the desiccant tower bed the twin tower design of our dryers allows simultaneous compressed air drying and desiccant regenerated without interruption to the compressed air flow. At the end of the drying cycle the regenerated tower is re-pressurized and tower operation is reversed automatically. After tower change over wet inlet air is directed to the regenerated tower and the previously used desiccant is regenerated by the same process. A completed cycle of drying and regeneration is 10 minutes or 6 minutes timing is precisely controlled by SAI electronic timer.
 

APPLICATION

Easy dry series designed for pharmaceuticals, powder coating, Spray Painting, CNC Machine, CMM Printing Application unit etc.
 

RANGE

5 cfm to 50 cfm-Easy dry series
20 cfm to 500cfm-Heatless dryer
 

FEATURES

• Compact design

• Pre filter oil removing filter, after filters are standard.

• Full instrumentation packages.

• Counter flow drying and regeneration.

• Low pressure drop less than 3 psi at rated flow

• Automatic re-pressurization

• Fixed purge orifice

Note : High Pressure/flow range can be offered on request. Operating Pressure standard at 14kg/cm