Page 627 - DixonCatalog20092010

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Simple Filter Troubleshooting
Malfunction Possible cause Remedy
Excessive pressure drop
Dirt passing through filter
Water passing through filter
Crazing of polycarbonate bowl
or milky appearance
Water beyond the filter
Micron rating of element too
small.
Filter element blocked.
Flow requirement greater than
filter capacity.
Element seals missing or
defective (N.B. Seals not
required on some units).
Damaged element.
Water level in bowl above
baffle.
Flow capacity of filter
exceeded.
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.
Inlet air has a high temperature
and as it cools downstream,
moisture condenses to water.
Use larger micron element size
for application.
1. Clean element
(not coalescing element).
2. Replace with new element.
Use larger filter.
1. Replace seal.
2. Tighten element.
Replace element.
Drain water.
Maintain flow within capacity
of filter or change to filter
capable of handling desired
flows.
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.
Fit dryer, pre-cool air or fit
filter immediately prior to
application.
General Purpose Filter
Bowl
Baffle
Service indicator
(optional)
Body
Louvre
Centre post
Element
Metal bow
sight glas
Collected
condensate
Drain