Page 34 - PNEUMATIC SYSTEM INSTRUMENT

MAIN LINE FILTER

Main-line compressed air filters are large, high-flow air filters used on

the main lines of compressed air systems. Main-line air filters are

often placed inside the compressor room and are used to protect the

compressor room components as well as the components

downstream in the compressed air system. Particulate pre-filters and

coalescing filters are used to remove contaminants and hydrocarbons

from the compressed air before it enters the dryer. After-filters are

used at the exit of the dryer.

Figure 5.1: Main line filter

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