Spiral wound gaskets have the ability to recover under the action of fluctuating loads caused by process fluid pressure and temperature changes, flange face temperature variations, flange rotation, bolt stress relaxation and creep.
The gasket sealing element consists of a pre-formed metallic winding strip with layers of a softer, more compressible sealing material which, during compression, is densified and flows to fill imperfections in the flange surfaces when the gasket is seated. The metal strip holds the filler giving the gasket mechanical resistance and resilience.
The outer ring of the spiral prevents blow outs and simplifies fitting the gasket. The inner ring acts as an additional heat shield when subjected to high temperatures. Spiral wound gaskets are also easy to fit as well as remove and will not damage a flange face.
In stock with the construction of:
Carbon outer/ 316 stainless inner/ Graphite filled
Sizes ½” to 24”