Durlon® Spiral Wound Gaskets (SWG) are made with an alternating combination of a preformed engineered metal strip and a more compressible filler material which creates an excellent seal when compressed. The engineered shape of the metal strip acts as a spring under load, resulting in a very resilient seal under varying conditions.
The strip metallurgy and filler material can be selected to seal a wide range of applications. All Durlon® SWG styles have been engineered to precise manufacturing tolerances that allow for lower stress (bolt load) sealing compared to conventional spiral wound gaskets.
All Durlon® SWG are manufactured according to ASME B16.20 standards.
There are three styles of standard Durlon® Spiral Wound Gaskets:
- Style D - Sealing element
- Style DR - Sealing element (D) centering ring (R) which acts as a compression stop
- Style DRI - Sealing element (D) centering ring (R) and inner ring (I) which protects the sealing element from erosion, inward buckling and improves radial strength
Download our Spiral Wound Gaskets Guide or our Spiral Wound Color Coding Guide for additional information.