The
Spiral Wound Gasket consists of a spirally wound, beaded metal strip
made from stainless steel 1.4541. A PTFE soft material strip
[unsintered] protruding on both sides is inserted between the individual
windings.
The inner and outer support ring [inner ring: 1.4541,
outer ring: carbon steel, corrosion protected] stabilize the spiral,
while the outer ring also ensures the centering between the flange
bolts.
Spiral Wound Gaskets are particularly suitable for
applications with high operating pressures and critical operating
conditions [e.g. alternating loads].