Spiral Wound Gaskets

Spiral wound gaskets are a type of gasket used to seal flanges in pipelines, valves, and other equipment where high pressures and temperatures are present. They are constructed by winding a metal strip, typically stainless steel, in a spiral pattern around a filler material such as graphite or PTFE (polytetrafluoroethylene). The winding of the metal strip and filler material creates alternating layers, providing both resilience and strength to the gasket.

The metal strip acts as the primary sealing component, providing mechanical strength and resilience, while the filler material serves to enhance sealing performance by providing a tight seal against the flange faces. The choice of filler material depends on the specific application requirements, such as temperature, pressure, and the media being sealed.

Spiral wound gaskets are preferred in applications where traditional gaskets might fail due to extreme conditions. They are commonly used in industries such as oil and gas, petrochemical, chemical processing, and power generation.

One of the key advantages of spiral wound gaskets is their ability to maintain a tight seal even under high pressures and temperatures, making them suitable for critical applications where leakage could be hazardous or costly. Additionally, they are relatively easy to install and can accommodate flange irregularities, resulting in a more reliable sealing solution.

However, it’s important to note that proper installation and selection of the correct gasket material are crucial for ensuring optimal performance and preventing leaks.

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