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For industrial use or process air requirement , the air should
be clean and free from moisture.
 When
air is compressed to 7Kg/cm²g, the temperature of discharged air
increases to around 140°C. The after cooler and separator installed after
the compressor are to the remove the moisture and oil. As an
example, a 100Nm3/hr
capacity compressor with suction conditions of 40°C & 50%RH when
compressed to 7.0 kg/cm²g and subsequently cooled to 40°C will
result in condensation of around 30lits of water. The air still
will contain 8000ppm moisture. At 45°C, compressed air contains
10,500ppm, at 50°C, 13,500ppm moisture and at 60°C, 21,600ppm
moisture which are to be removed by Air Dryer. Therefore, lower the temperature of air
entering the dryer inlet,
smaller would be the size of Air Drying unit and batter the
performance.
Salient Features
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The cooling water supply is
not required. |
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Low temperature operation
reduces corrosion of towers and desiccant lasts longer. |
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Automatic repressurizing
equalizes desiccant chambers pressure before changeover,
thus avoiding any bed movement at the time of changeover. |
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High performance, low initial
installation and operating costs. Maintenance free and no heaters to burn out. |
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Soft seated pneumatic Control
Valves are used for isolation of towers allowing no
internal or external leakage as noticed in 2/3 ways Plug
Valves. |
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Only single phase electric
power is required for operating solenoid valves. Power
consumption is negligible. |
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