chemical cleaning method

In this procedure, a variety of chemicals (solvents, acids, caustic, etc.) are used to dissolve the contaminant or the process fluid (such as paint or polymer) if it has hardened on exposure to air.

This procedure can remove contaminant not only from the surface, but can also remove extremely fine particulate that may be caught in the depth of the media. The element can be cleaned either by reverse flowing the chemical or by removing the element and immersing it in the chemical with periodic agitation.

Following cleaning, the residual chemical solution on the element should be neutralised and the element flushed with filtered or distilled water until a neutral or acceptable situation is achieved.

In all applications, the customer should be consulted regarding information as to which chemical is best suited to dissolve his contaminants and is compatible with his process. Chemicals used to clean the metallic element should be compatible with the filter media.