Friday, 10 June 2016

SEAL BASICS



Principle of sealing:

The flow of gasket material in the imperfections of sealing surface is caused by the combination of following two actions:

            1)  Compression   2) Attrition 

            Following factors are important in effective sealing:

            1) Compressive force
            2) Hydro-static end force
            3) Internal pressure

Static Sealing:





Types of Gasket joints:

•      Confined
•      Partly confined
•      Unconfined
•      Self energized

Types of Gaskets:

•      Non-metallic
•      Metallic