Profile® A/S Series filters¹ are constructed of an all polyphenylene sulfide (PPS) filter medium with 316 L stainless steel cores as standard. The elements have an absolute rated downstream section, and a continuously profiled pore size upstream section, which increases service life many-fold. Note the photomicrograph below. The elements are available in a broad range of absolute removal ratings. Refer to Table 1.

The fibers in Profile A/S filters are continuous, for practical purposes. No binder resin or surfactants are used and the fibers are “bonded” by intertwining during the manufacturing process. The filter components meet the specifications for biological tests listed in the current revision of USP for Class VI plastics at 121°C. Because of the inertness of the polyphenylene sulfide medium, Profile A/S elements can be used with many fluids up to 400°F(205°C). Please refer to Table 2 for more details.

¹ U.S. patent number 4,594,202

Photomicrograph - Profile® filter technology



The photomicrographs illustrate the construction of Profile A/S elements. 1. Continuously profiled pore size upstream section. 2. Absolute rated constant pore downstream section. Note the continuously decreasing fiber diameter in the profiled upstream section and the constant fiber diameter in the downstream section.