Product Description
spiral wound gasket is a semi-metallic sealing device constructed by spirally winding a V-shaped metal strip with a soft, non-metallic filler material, creating a flexible and resilient gasket capable of handling high pressure, temperature fluctuations, and misaligned flanges, commonly used in industrial applications like pipelines and pressure vessels; it often includes an outer centering ring and sometimes an inner ring to protect the sealing element from contamination; the metal strip provides strength and recovery, while the filler material ensures a tight seal.
Key points about spiral wound gaskets:
Construction:
A V-shaped metal strip (usually stainless steel) is spirally wound with a soft filler material like graphite or PTFE between each layer.
Components:
Outer ring: A centering ring made of carbon steel, used to properly position the gasket within the flange.
Inner ring (optional): Protects the sealing element from potential damage by the fluid flowing through the pipe.
Sealing element: The spirally wound combination of metal strip and filler material that creates the seal.
High pressure and temperature resistance:
Can handle extreme conditions due to the combination of strong metal and resilient filler.
Flexibility and conformability:
The spiral design allows the gasket to conform to slight flange imperfections.
Good for pressure fluctuations:
Can handle changing pressure conditions without losing sealing integrity.
Wide range of applications:
Used in chemical processing, oil and gas, power generation, and other industrial applications.