Because high durability stainless steel filters have a tremendous amount of adsorptive stainless steel surface area the surface will adsorb or capture H2S, mercaptans, and other sulfur compounds; making analyzers like CEMS (continuous emission monitors) ineffective. Sulfur adsorption can hold up accurate CEMS measurements by up to 90 minutes or more.
SilcoNert® 2000 gives the ultimate passivation treatment for stainless steel surfaces. This is not a consideration with our disposable filter media as these offer an inert surface, however, the stainless steel filter elements must be considered for treatment with SilcoNert® to create a completely inert flow path. SilcoNert® technology ensures the treatment penetrates even the smallest pores in the surface of the filter housing, and stainless steel elements. This should be used when analyzing in the parts-per-billion levels of sulfur compounds & mercury. Contamination by moisture is also reduced and overall sample system performance is improved.
Any stainless steel filters supplied by United Filtration Systems/Headline Filters can be SilcoNert® 2000 treated with a estimated delivery of 2-3 weeks. We have many customers that request our H series of heatable housings for automotive emission testing be SilcoNert® coated for the above reasons, but also because the coating helps prevent galling and makes element removal easier. The SilcoNert® creates a “smooth” surface which eliminates element sticking do to the constant high temperature operations.
For further details please contact Dirk Loveland at dirk@unitedfiltration.com or call 1-800-311-5561 (ext. 222).