Background
Many manufacturing processes require a constant supply of compressed air.
The air may be used for many different reasons - for example the actuation
and control of pneumatic valves, cylinders and controllers; operation of
process machinery or tooling; as a transport medium for bulk materials; or as
a purge gas. The compressed air supply will contain some moisture which, if
uncontrolled, could potentially cause damage to the process, pneumatic
controls, tooling, finished product, or indeed the components of the air
distribution system itself.