Low stress / anti-buckling spiral wound gasket

摘要

A spiral wound gasket ( 10 ) with increased resistance to an inward buckling while sealing flanges at low stress levels, in which an outer guide ring ( 14 ) for positioning the gasket within the bolt circle of a bolted flange connection connects to a sealing element ( 12 ) having a core ( 16 ) that contributes to gasket recovery and made of a spirally wound, chevron-shaped band overlaid by a layer ( 20 ) of sealing material covering at least a portion of opposing sides of the core to conformably seal contact faces of flanges to be sealed.