Compressed Air Dryers

Refrigerated Dryers works on Heat Transfer principle.
Saturated compressed air enters the Pre-cooler / Re-heater (air to air heat-exchanger), where it is pre-cooled by exchanging heat with the outgoing cold air, which reduces heat load to evaporator. The inlet air is further cooled in the evaporator (air to refrigerant heat exchanger) to the required dew point.  The cold air is then reheated when it passes back through the air-to-air heat exchanger (precooler/reheater).
A refrigerant compressor and condenser supply low-temperature refrigerant to the evaporator.  The thermostatic expansion valve and the hot gas bypass valve match the operation of the refrigerant system to the compressed air cooling load. In the evaporator, heat is transferred from the compressed air into the refrigerant. 
                The process cools the air, reducing its capacity to hold water vapor and resulting in moisture condensation.  The excess vapor condenses and is removed from the air system by a separator and automatic drain valve.

Our consistency in continuous improvement in design for renovating small model results into tube-in-tube type dryer. The copper tube-in-tube design provides maximum surface area which results in optimum heat transfer.

Features & Advantages

• Non-Cyclic Operation
• Load handling Capacity 0 to 100% without Freezing
• Constant Dew point
• Customized Air/Water models
• Special controls for Constant Evaporating and Condensing temperature.
• Low Energy Consumption 
• Eco Freindly

Specifications we can manufacture are:

Sl No.	Type Of Ref. Dryer	Range
		Flow Rate	Pressure
1	Air Cooled Water Cooled	10 CFM to 10000 CFM	0.5Kg/cm² to 80Kg/cm²

The compressed air is passed through a pressure vessel filled with an adsorbent media such as activated alumina, molecular sieve or other desiccant material. Two vessels with desiccant are used. The desiccant can bring the dew point of the air down to -40 degrees Celsius or below. This means that the air will not condense water until it is cooled to -40 degrees Celsius. Wet air enters the vessel through a pre-filter to remove any oil and other contaminants which protects desiccant’s long life.  Pre-filtered air enters into adsorption tower through solenoid valves controlled by an electronic timer
In practice two vessels are used; one vessel is drying the air, while in the other the moisture absorbed by the adsorbent in the vessel is being regenerated. After a pre determined period of time the switching of the vessels takes place with the help of the electronic timer. The other absorber tower undergoes regeneration with a portion of dry air exits from adsorption tower. This regenerated air is purged out of the system.


Features & Advantages

• Low Maintenance Cost.
• No heater Required.
• Electronic Timer for Reliable and Continuous operation.  
• Fully automatic
• Wall mountable models also available

Specifications we manufacture are

Sl No.	Type of Dryer	Range		Type of Desiccant
		Flow Rate	Pressure
1	Heatless Dryer	5 CFM to 500 CFM	Up to 40kg/cm	Activated Alumina
2				Molecular Sieve