Which gaskets work for steam and superheated steam?
Steam can be found in plants in two forms: saturated and superheated. Saturated steam is standard boiler steam and has a definite temperature for each pressure. Superheated steam is steam at a higher temperature than is found on the saturated steam curve for that particular pressure.
We recommend GRAPH-LOCK® styles or graphite/metal gaskets (FLEXSEAL RWI, GRAPHONIC, Kammprofile, etc.) for superheated steam.
Please be aware of the pressure and P x T limits for each style when making a selection, and consult with Garlock Engineering when approaching these limits. Also see notes on steam service found on fiber gasket specification pages in the Engineered Gasketing catalog.