Spiral wound gaskets made by alternating a formed metal strip and a soft filler
material to which form a gasket that produces a very effective seal when compressed
between two flanges. The V-shaped windings of the metal strip acts as a spring, giving
the gaskets greater resiliency under varying conditions.
The metal strip and filler materials of spiral wound gaskets can be changed,
accommodating for different chemical compatibility requirements and fire safety is
assured with selecting flexible graphite as the filler material.
Spiral wound gaskets may include a centering ring, an inner ring,or both. Spiral wound
gaskets' outer centering ring ensures the gasket is centered within the flange and acts
as a compression limiter. Spiral wound gasket inner rings provide additional radial
strength, also reducing flange erosion while protecting the sealing element. The
strength and resiliency of spiral wound gaskets make them the ideal choice in a variety
of conditions and applications, and are used widely throughout refineries and chemical
processing plants, also being very effective for power generation, pulp and paper,
aerospace, and a variety of valve and specialty applications.
Spiral wound gaskets are manufactured to a number of specifications most notably
being ASME B16.20. Environmental Gasket Company manufacture in accordance with
the guidelines set forth in the ASME B16.20 specifications plus many others to meet
industry demands.free fonts
 
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