Functions of Gaskets for leak proof Flanged joints
Gasket is one of the basic elements for flanged joints in piping system of process plants. A gasket can be defined as a material or combination of materials clamped between two separable mechanical members of a mechanical joint (flanged joint) which produces the weakest link of the joint. Gaskets are used to create a static seal between two stationary members of a mechanical assembly (the flanged joint). The gasket material flows (interpose a semi-plastic material between the flange facings) into the imperfections between the mating surfaces by an external force (bolt tightening force) and maintain a tight seal (seals the minute surface irregularities to prevent leakage of the fluid) under operating conditions. The amount of flow (seal) of the gasket material that is required to produce a tight seal is dependent upon the roughness of the surface. The gasket must be able to maintain this seal under all the operating conditions of the system including extreme upsets of temperature and p
