Spiral wound gaskets are special semi-metallic gaskets of great strength and resilience. Manufactured by spirally winding V-shaped metal strips and strips of non-metallic filler with good sealing characteristics, they are suitable for use under heavy operating conditions at high temperatures and pressures. Applications include the sealing of flange joints, boilers, heat exchangers, valves, and pressure vessels. Inner rings and outer rings may be added to reinforce the gasket. A range of metals and filler materials are available to suit different applications.

Tesitallic® Spiral Wound
Spiral wound gaskets are special semi-metallic gaskets of great strength and resilience. Manufactured by spirally winding V-shaped metal strips and strips of non-metallic filler with good sealing characteristics, they are suitable for use under heavy operating conditions at high temperatures and pressures. Applications include the sealing of flange joints, boilers, heat exchangers, valves, and pressure vessels. Inner rings and outer rings may be added to reinforce the gasket. A range of metals and filler materials are available to suit different applications. Standard Tesitallic spiral wound gaskets are made to fit ANSI B 16.5 and BS 1560 flanges. Spiral wound conforming to ASME B16.20 specification on request. Color coding to the industry standard is available. The nominal thicknesses available are 4.5mm and 3.2mm. A special request is required for a nominal thickness of 6.4mm. Non-standard spiral wound gaskets are available in various dimensions and shapes for use as flange gaskets, manhole gaskets, handhole gaskets, or other applications. Spiral wound gaskets are only suitable for circular or moderately non-circular shapes. Limitations on size and shape largely depend on practical considerations in the manufacture of the gasket.