FILTER CARTRIDGE WITH STRAP AND METHOD

摘要

A filter cartridge (20) and method for making a filter cartridge (20) for removing particulates from a particulate laden fluid stream moving one direction through the filter cartridge. The filter cartridge (20) is periodically subject to cleaning fluid moving in an opposite direction to th e fluid stream. The filter cartridge (20) comprises filtration media (24) form ed into a tubular configuration and having a plurality of circumferentially spaced apart pleats (26). A retention device (82) to limit radial movement o f the filtration media (24) when subjected to the periodical cleaning fluid an d to maintain the pleats (26) in the filtration media circumferentially spaced apart when exposed up to 130 degrees Celsius. Preferably, the extrudate (144 ) is thermoplastic, polyester, elastomeric material and at least one additive may be present. Multiple layers of the extrudate (144) may be fused together .