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Technical Information
DPL116
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846
Simple Filter Troubleshooting
General Purpose Filter
Bowl
Baffle
Service indicator
(optional)
Body
Louvre
Centre post
Element
Metal bowl
sight glass
Collected
condensate
Drain
Malfunction
Possible cause
Remedy
Excessive pressure drop
Micron rating of element too
small.
Filter element blocked.
Flow requirement greater
than filter capacity.
Use larger micron element
size for application.
1. Clean element
(not coalescing element).
2. Replace with new element.
Use larger filter.
Dirt passing through filter
Element seals missing or
defective (N.B. Seals not
required on some units).
Damaged element.
1. Replace seal.
2. Tighten element.
Replace element.
Water passing through filter
Water level in bowl above
baffle.
Flow capacity of filter
exceeded.
Drain water.
Maintain flow within capacity
of filter or change to filter
capable of handling desired
flows.
Crazing of polycarbonate
bowl or milky appearance
Bowl has been cleaned with
incompatible fluid.
Bowl is being used in an area
containing fumes or
vapors in-compatible with
polycarbonate.
Compressor oil vapor may be
causing problem.
Air intake to compressor may
contain fumes or vapor
in-compatible with
polycarbonate.
Replace bowl.
(Clean only with clean warm
water and soap.)
Replace bowl.
Eliminate source of problem
or
convert from plastic to metal
bowls.
Replace bowl.
Eliminate source of problem
or
convert from plastic to metal
bowls.
Replace bowl.
Eliminate source of problem
or
convert from plastic to metal
bowls.
Water beyond the filter
Inlet air has a high
temperature and as it cools
downstream, moisture
condenses to water.
Fit dryer, pre-cool air or fit
filter immediately prior to
application.