A Filter That Cleans Itself ? Purolator Makes It!
Product Announcement from Purolator Facet, Inc.
Metaledge® Self-Cleaning Filters - Wedge shaped stainless steel ribbon with raised projections, wound edgewise on a cylindrical frame, and scraped by a knife edge. The knife edge removes the contaminant from the surface of the element, and is drained periodically from the sump.
Metaledge® filters have been designed to filter the most viscous of fluids. Standard sizes are available from 3/4" NPT to 4" flange connections. 10 different micron ratings are available from 25 to 500 micron. Housing are available in carbon steel or 304 stainless steel with stainless steel elements. See the Metaledge video.