Page 63 - Pneumatic ebook (2)_draft 13 sept 2021

Air dryer - coolant drying (refrigerant drying)

1. This method cools the compresses air temperature by removes
water and causing condensation. The accumulated moisture in
liquid form is collected by an internal moisture separator and
sends it to a drain.
2. The air generated by refrigerated dryers typically with pressure
dew points between 35 and 40° F, mostly used in general plant
operations.
3. For critical processes which requires extremely dry air, this

method may not be suitable.
4. This dryer is a mechanical unit consisting a refrigeration circuit,
and two heat exchangers.
5. Refer Figure X for the sequence of the process.

INTRODUCTION TO PNEUMATIC SYSTEM 27