Norgren Filter Contents - Manual (Page 6)

Filters
Littleton, CO USA Phone 303-794-2611 www.norgren.com ALE-Filter
Malfunction Possible cause Remedy
Excessive pressure drop. Micron rating of element to small Use larger micron element size for application.
Filter element blocked. 1. Clean element (not
coalescing element). Note: Some residual
contamination will remain.
2. Replace with new element.
Flow requirement greater than Use larger filter.
filter capacity.
Dirt passing through filter. Element seals missing or Replace seal
defective. (N.B. Seals not 2. Tighten element.
required on some units).
Damaged element. Replace element.
Water passing through filter. Water level in bowl above Drain water.
baffle.
Flow capacity of filter Maintain flow within capacity
exceeded. of filter or change to filter
capable of handling desired flows.
Crazing of Polycarbonate bowl Bowl has been cleaned with Replace bowl.
or milky appearance. incompatible fluid. (Clean only in clean warm water and soap.)
Bowl is being used in an area Replace bowl.
containing fumes or vapors Eliminate source of problem or
incompatible with polycarbonate. convert from plastic to metal bowls.
Compressor oil vapor may be Replace bowl.
causing problem. Eliminate source of problem or
convert from plastic to metal bowls.
Air intake to compressor may Replace bowl.
contain fumes or vapor Eliminate source of problem or
incompatible with polycarbonate.convert from
plastic to metal bowls.
Water beyond the filter Inlet air has a high temperature Fit dryer, pre-cool air or fit
and as it cools downstream, filter immediately prior to application.
moisture condenses to water.
1.7 SIMPLE FILTER TROUBLESHOOTING