Metal javketed gasket

These gaskets are composed of carefully selected cushion materials such as Asbestos Millboard, Non-Asbestos Millboard, Graphite Sheet and PTFE with external metal jacket of carbon steel, stainless steel, copper, 5Cr-0.5Mo alloy steel, etc.. They are widely used on piping flanges, joints of machinery and heat exchangers because they can be fabricated not only to a regular round shape but also to other irregular shapes such as oval, rectangular, etc. with additional rib or ribs to seal multi-pass heat exchangers. An increased demand has recently been seen for a special type having attached expanded graphite tapes on both sealing faces to increase sealability.

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