PSI-Polymer Systems Inc. has rolled out a patent-pending seal for its piston-type screen changers and divert valves.
The seal is designed for leak-free processing of low-viscosity materials, such as hot-melt adhesives, at temperatures as high as 520° F. PSI received a U.S. patent several years ago for a segmented seal design developed specifically for manual and hydraulic slide plate-type screen changers.
PSI-Polymer of Conover, N.C., will show the new patent-pending seal design at NPE 2012, installed in a continuous screen changer.
Tel. 828-468-2600, fax 828-468-2610, email [email protected].