Normal PTFE filter bags have a very good chemical resistance but on the other hand they do not have a high dust separation efficiency. Lenzing PROFILEN® is a compromise between a high efficiency and a high flow rate after cleaning of gases with all the positive aspects of normal PTFE bags.
To acquire a better feeling and understanding for the advantages of Lenzing PROFILEN® it is necessary to view the function of a fabric filter. A simple equation shows that the pressure loss of a bag filter can be determined by
adding the single pressure difference loss of the clean filter bag (PDF) and the pressure loss of the filter cake.