Heat Exchanger Gaskets.For many years now, the Heat Exchanger gasket design has served industries sealing needs, providing a cost effective, quality seal with the introduction of improved gasket manufacturing processes and materials, this trend is deemed to continue for many more to come. Heat Exchanger gaskets compromise of a soft/non asbestos material either partically or totally enveloped in a metallic sheath. This gasket arrangement allows for a high strength, quality gasket seal suitable for use on standard flage assemblies, valves, pumps, heat exchangers and other similar services.