Gasket Pressure Guide - RAM Gasket SolutionsExplore further
The pressure class or rating for flanges is given in lbs. For example: 150lb, 150 lbs, 150#, or class 150 – are all equivalent. The flange class or pressure rating system extends to gaskets designed for those flanges. So, for example, a class 150 gasket is designed to seal under a load of up to 150 lbs of pressure in a class 150 flange.
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