What are the three type of air dryer use in pneumatics?

Dryers remove water vapor from the air, which lowers its dew point — the temperature to which air can be cooled before water vapor begins to condense. In broadest terms, there are four basic types of industrial compressed air dryers: deliquescent, regenerative desiccant, refrigeration, and membrane.

How do refrigerated compressed air dryers work?

The refrigerated air dryer working principle is based on de-humidifying air by rapidly cooling it, condensing it, and draining off the moisture. The operation is like that of a domestic refrigerator or home air-conditioning system.

What is a refrigerated air dryer used for?

A refrigerant air dryer is a specific type of compressed air dryer that is used to remove moisture from compressed air, which always contains water.

What size refrigerated air dryer do I need?

If you wanted a properly sized dryer from one example supplier, you should add 51% for the high inlet temperature, about 5% for the lower pressure and another 16% for high ambient temperatures. This would result in a dryer rated at about 500 x 1.51 x 1.05 x 1.16 = 920 cfm.

What are the types of air dryers?

The four main types of compressed air dryers are refrigerated, chemical, desiccant, and membrane. It is important to understand how each drying technology works to learn which is best for your application. Refrigerated dryers work by cooling the air to low temperatures and condensing much of the water vapor.

Why do I need an air dryer for my compressor?

Air dryers are essential for air compressors. They keep compressors free of moisture, and prevent condensate and rust problems from occurring. Air compressors produce a lot of water. While this water can be drained, the moisture isn’t removed entirely from the system.

What is a refrigerated compressed air dryer?

A refrigerated compressed air dryer is a type of compressed air dryer, used to dry compressed air. Compressed air always contains water, coming from the air that is sucked in by the compressor. To protect your piping, tools and equipment, it’s best to use a compressed air dryer to dry the air.

Why do I need an air dryer?

The purpose of air dryers is to suppress the dew point of your compressed air by removing water from it. Compressed air can contain moisture, which, under the right conditions, can reach the dew point temperature and condense into a harmful liquid.

How do I choose a compressed air dryer?

To figure out the right-sized dryer, divide the total flow by the total correction factor: 200 cfm / 0.861= 232 cfm (at standard conditions). Now, you can look at the dryers’ stated capacity on the dryer literature (excerpt shown below) and see which one will dry 232 cfm effectively.