Sealing ring washer provided with annular protuberances (21-27) around the washer hole (20) these being concentrically and alternatingly arranged on each side

摘要

Sealing ring washer provided with annular protuberances (21-27) around the washer hole (20) these being concentrically and alternatingly arranged on each side and, upon exerting pressure to both sides of the gasket, deforming the sides of the washer in accordance with its elasticity up to a pretensioning limit. Replacing the non-resilient, conventional asbestos-type ring-washer gaskets by inherently elastically deformable washers and/or those having elastically yielding protuberances concentrically arranged around the hole.