Patent ID: 8505922

Claim:
A method of sealing a gap ( 48 ) between joint members ( 22 , 24 ) of a fluid joint exposed high temperature fluids comprising the steps of: winding a first high temperature performance metallic strip ( 28 ) formed of a thermally conductive alloy including, in wt % of the alloy, nickel (Ni) in an amount of 18.0 wt % to 55.0 wt %; chromium (Cr) in an amount of 13.5 wt % to 23.0 wt %; and a balance of iron (Fe) spirally around a central axis (A) to present a first high temperature performance metallic winding ( 30 ) surrounding a center opening; winding a first non-metallic filler strip ( 32 ) spirally around the central axis (A) outwardly of the first high temperature performance metallic winding ( 30 ) to form a first non-metallic filler winding ( 34 ); winding a second high temperature performance metallic strip ( 36 ) formed of a stainless steel material around the central axis (A) outwardly of the first non-metallic filler winding ( 34 ), the material of said second high temperature performance metallic strip is different from the material of said first high temperature performance metallic strip; winding a second non-metallic filler strip ( 40 ) formed of a second non-metallic insulating material spirally around the central axis (A) outwardly of the second high temperature performance metallic winding ( 38 ) to form a spiral wound gasket ( 20 ); disposing a first joint member ( 22 ) formed of a metal material along a chamber ( 26 ) for containing high temperature fluids; disposing a second joint member ( 24 ) formed of a metal material along the chamber ( 26 ); spacing the second joint member ( 24 ) from the first joint member ( 22 ) to present a gap ( 48 ) therebetween; and disposing the spiral wound gasket ( 20 ) along the gap ( 48 ) between the joint members ( 22 , 24 ) for sealing said gap ( 48 ).