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Spiral Wound Gaskets

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Lewco Style SWOG (Spiral Winding with Outer Guide Ring) gaskets are manufactured to ASME B16.20 dimensions for B16.5 flanges with a preformed metal strip (304ss or 316SS) and soft filler material (Flexible graphite). The outer guide ring (Carbon Steel) helps center the gasket
within the flange.






Lewco Style SWOIG (Spiral Winding with Inner & Outer Guide) gaskets are manufactured to ASME B16.20 dimensions for B16.5 flanges with a preformed metal strip (304SS or 316SS) and soft filler material (Flexible graphite). The outer guide ring (Carbon Steel) helps center the gasket within the flange. An inner guide ring (304SS or 316SS) has been pressed into the ID of the winding.

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