Spiral wound gaskets are made using 316SS windings and graphite filler for the body of the gasket. They are manufactured to the API601standard.
Usually used on gaskets above Class 600, these gaskets also have an internal ring made of carbon steel. The inner ring guards against unwinding of the gasket and gives a smooth flow of product past the flange assembly.
Pressure ratings normally stocked
* Class 150
* Class 300
* Class 600