Spiral Wound Gasket Seamatech VN

SPIRAL WOUND GASKETS ASME B16.20 

Spiral wound gaskets are semi-metallic gaskets that are used for high temperature and high-pressure applications. The main parts of spiral wound gasket are metallic windings and filler material.

The Spiral Wound Gasket is a very versatile sealing product and has considerable mechanical strength and recovery characteristics. It is of semi-metallic configuration and capable of sealing a wide range of media across a range of Pressure (upto 450 Bar) and Temperature (-250 to +1000⁰C)  applications.  

Spiral Wound Gaskets can be used with various flange face configurations and it is this that ultimately determines what style of gasket is required.

CO : Klinger Australia / Valqua Thai / Nichias Japan  

Criteria for Selection

1. Nature of fluid i.e. corrosive nature, fluid concentration et,
2. Operating temperature and pressure.
3. Material cost.

Materials of Construction

1. Commonly used material for winding are Stainless steel 304, 316 and 321.
2. Alternate winding materials also can be used depending upon the services.
3. General filler material used are Asbestos and graphite.
4. Graphite filler are recommended for very high temperature application.
5. The material of the inner ring should be compatible with the process fluid.
6. Gaskets with inner ring are used in vacuum service.
7. Combinations of metal strip and filler are selected to suit the specific fluid media and operating conditions.