Generally, compressed air dryers are used to remove water and other contaminants from compressed air. In fact, compressed air dryers use technologies like desiccant adsorption, refrigeration, and membrane filtration to remove contaminants and other impurities, particularly water, from the air. In this way, the major groupings include refrigerant (which removes the water by cooling the air) force condensation, and desiccant (which adsorbs the water in the air with granular material such as activated alumina, silica gel and molecular sieves).

Another technology is the membrane and in-line compressed air dryer. It is a matter of choice to dry the air in single or multiple stages to avoid tool corrosion and other problems associated with water.

Important specifications need to be considered while searching for compressed air dryers like

• Drying Capacity
• Motor Power
• Maximum Pressure
• Operating Temperature

Actually, drying capacity is the maximum volume of air through dryer. The maximum pressure refers to the maximum rated inlet pressure of dryer and dew point is a measure of dryness i.e it describes how much water vapor is present and tells us how cold the compressed air can get before liquid water will form.

The choices for power sources for compressed air dryers include: DC power, AC single phase, and AC three phase. The common features include pressure gauges, integral filters, and automatic condensate drain. The pressure gauges monitor pressure; includes dial or digital readout whereas the integral filters are used for the mechanical trapping of moisture, oil, smoke, etc. An automatic condensate drain automatically senses the level or amount of removed moisture and automatically drains it off.

Types of Compressed Air Dryers
We at, SAM Gas Projects (P) Ltd, manufacture and export a broad wide range of compressed air dryers. All our quality products are durable, easy handling and cost effective too. We have a wide clientele in both domestic and international market. The below mentioned types of compressed air dryers are readily available with us:

• Heatless Type
• Heat of Compression (HOC) Type
• Internal Heat Reaction Type
• No Purge Loss Type

Product Attributes
Flow rate	1 to 500 Nm3/hr.
Pressure	0.5 to 15 kg/cm2g
Dew point	upto (-80) deg. c

Features of Our Compressed Air Dryers
Our compressed air dryers based on PSA technology is the best in quality and productivity. Few additional features of our compressed air dryers are:

• Simple to operate
• In built safety devices for compressor, condenser etc
• Low maintenance costs
• Long life
• Simple design
• Easy access to all parts
• Little or no maintenance
• Low power consumption
• Environment friendly
• Constant dew point
• High quality product due to stage wise inspection & testing before dispatch
• Innovative heat exchanger ensures maximum heat transfer & low pressure drop