In piping, a Gasket is sealing material placed between connecting flanges to create a static seal. This will maintain the leakage proof sealing in all operating conditions. Different types of gaskets are used to achieve the leak proof sealing between the pipe flange.
The primary function of gaskets is to seal the irregularities of each face of the flange so that there will be no leakage of the service fluid from the flange joint.
There are three types of gaskets used in process piping.