1 - 2
General Information
1.2.3 Automatic Drain Valves
As previously stated, the accumulated water and oil mix-
ture collected by a prefilter must be periodically drained
from the prefilter housing sump. A General Pneumatics
Automatic Drain Valve is a recommended and reliable
means of removing collected moisture, oil and sludge from
coalescing prefilter housings and other components requir-
ing periodic draining.
1.2.4 Afterfilter Assembly
The General Pneumatics Particulate Afterfilter Assembly is
another feature offered. Even under the most ideal condi-
tions, all regenerative type desiccant dryers tend to gener-
ate small quantities of micron-sized desiccant dust par-
ticles. This highly abrasive contaminant can erode instru-
ments, valve seats, air cylinders and pneumatic tools. A
General Pneumatics Particulate Afterfilter Assembly in-
stalled downstream of your desiccant dryer will remove
desiccant dust, pipe scale and other harmful particulates
before the gas stream continues to points-of-use.
