Spiral Wound Gaskets: Spiral Wound Gaskets are available in variety of styles to suit the particular flange facing being utilized on the flanges.Spiral Wound Gaskets are semi-metallic gaskets. Wide Choice ofmaterials for metal strips and filler, suitable for high pressure &temperatures, Suitable for flanges with tongue and groove. For male to female flanges, Solid metal Inner Ring for high pressure and temperatures. For Raise Face and Flat Face Flanges, Solid metal outer ring used as a Centering Device and Compression Stop.