Spiral-wound gaskets comprise a mix of metallic and filler material. Generally, the gasket has a metal (normally carbon rich or stainless steel) wound outwards in a circular spiral with the filler material (generally a flexible graphite) wound in the same manner but starting from the opposing side. This results in alternating layers of filler and metal. The filler material in these gaskets acts as the sealing element, with the metal providing structural support.Used for sealing flange joints of pipes, valves, pressure vessels, condensers, heat exchangers, towers, manholes, hand holes and other industries such as petroleum, chemical, metallurgy, electric power, ships and machinery. Manufactured according to ANSI, APi.din.jis,JPI,BS standards, or specified by customer