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Moisture Free Air

April 29, 2011


Delair is leader in compressed air treatment. The main motive is moisture free air. Dry air is essential for the successful completion of many processes used in manufacturing and commercial applications. A company that needs moisture free air needs to consider three main things: what dry air equipment is available, what size equipment is needed for their purposes and how the equipment should be used.

Delair can help find the resources for the quality of air needed for any application. All pneumatic systems requires moisture free air for continuous functioning. Delair refrigeration dryer and heatless dryers achives the goal of moisture free air.

Moisture in compressed air may lead to problems like :  

Malfunctioning of pneumatic tools and machines Sluggish and inconsistent operation of valves and cylinder
Corrosion in pipe lines, cylinder and other components Increase in downtime
Increase in maintenance cost of pneumatic machines / tools / controls. Freezing in exposed lines during cold weather.

Delair have the solution of Moisture free air. Delair manufactures Refrigeration dryer, Desiccant dryers and customized / engineered dryers. 

The 'heatless' principle of regeneration is based on the physical property of the desiccant, given as Delsorb as one of its kind in Asia and approved by all major consultants, which liberates the adsorbed water vapour, if air with a low water vapour pressure is passed through it.

Compressed Air Systems should be designed for just the right quality of air at the most economical costs. Delair has a wide range of dryers for all your needs, for general plant and instrumentation air. If the application requires extra dry air and PDP below 2°C, the delair has a large range of adsorption dryers for the job-heatless regenerated and energy-less.

Desiccant dryers, heatless type, use 10 to 15% purge air for regeneration of desiccant i.e. 10 to 15% of compressor power (HP) is being used as energy operating costs for drying thereby increasing the capital costs in installing extra capacity of compressor.

The DC series self-activating, heatless dryers, Platinum and Gold series remove moisture from compressed air. They contain two pressure vessels or towers, each containing a quantity of desiccant. One tower dries the air, while the other is being reactivated.

Refrigeration dryer operates on the method of cooling the air to near freezing point to remove the moisture and reheating it to approximately 10°C below the incoming compressed air temperature at nominal conditions.

For general plant air, dew points of 2°C to 4°C are considered adequate, well within the range of refrigeration dryers. Refrigeration type dryers use less energy and hence are lower in first and operating costs.

The refrigeration type air dryer is a packaged self contained unit, fully automatic and produces a steady level of dew point. There is no regeneration cycle with complex valving, no periodic recharging of chemicals, oil in the air stream does not affect performance.

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