Usit ring offers new standard of hygiene

摘要

With its Hygienic Usit ring, Freudenberg Sealing Technologies Process Seals has developed the first step towards completely new hygienic standards for screw connections in the food, beverage, chemical and pharmaceutical industries. The innovative combination of special EHEDG-conforming washers - the Usit rings - and special NovoNox screws makes it possible to eliminate the danger of contamination at all screw connections for hygienic equipment and devices, the company says. The Hygienic Usit is external-sealing and cleanly closes off the area between the screw and the surface from any type of external influence, reliably protecting the product. The configuration of a Usit ring with its externally vulcanised, trapezoidal, elastic rubber sealing bead minimises dead space where deposits can form. The sealing bead is made of 70 EPDM 291, which conforms to FDA and EU VO 1935/2004 and is non-hazardous based on USP Class VI (121°C; 250°F).