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Moisture Control

April 29, 2011


Delair provides the solution for complete moisture control from compressed air. Protection from moisture is called moisture control. Moisture that creeps and seeps into your home can cause major damage. Moisture can cause damage to pneumatic tools / systems, compressed air pipe lines etc. There are many ways that you can protect your machines and equipments from moisture. There are four forms of moisture and they are liquid, solid, gas, and absorbed. Moisture that is mixed with compressed air can even be worse. It can cause rust, corrosion, defects in machines. 

Moisture in compressed air may lead to:

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.

For achieving complete moisture control different types of air dryers can be used. Delair manufactures Refrigeration dryer, Desiccant dryers and customized engineered air dryers for moisture control.

For moisture free air desiccant air dryer can be used. Desiccant dryer works on the principal of usage of a desiccant as a moisture adsorber and oil found in the air supply. The benefits of desiccant dryers are their low cost and ease of installation. These types of dryers are recommended for small operations that see low or intermittent use for micro-abrasive blasting. These instrumentation air dryer can also be used for pet drying, pneumatic air drying. For painting purpose, paint booth dryers are used. Desiccant dryers are an excellent low cost solution for small scale or intermittent blasting.

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.

Customised / engineered adsorption dryers also works on the principal of usage of a desiccant to absorb moisture and oil found in the air supply but it is designed and produced to the exact specification of the customer.

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