SPIRAL WOUND GASKET

A spiral wound gasket is the most common metallic gasket used in industrial plants. A perfectly selected and installed spiral wound gasket can withstand high pressures and temperatures preventing any kind of leakage throughout its intended lifespan.

A spiral wound gasket consists of three elements:

Outer ring:

It is made of carbon steel and is called the guide ring or centering ring. it is used to center the gasket when inserted into a bolted flange joint.

Inner ring:

The inner ring is pivotal for the gasket as it prevents winding from buckling inside the pipe. When a gasket buckles, its parts get sucked into the pipe. Usually, they get wrapped around rotating equipment such as a pump.

Sealing element:

As the name suggests, the sealing element creates a seal that prevents leakage. It encompasses both windings and filler materials. Most spiral wound gaskets use a flexible graphite filler material for high temperatures.

At Smart Engineering and Fasteners we manufacture Spiral wound gaskets by spirally winding a preformed metal strip and filler on the outer periphery of metal winding mandrels whose outside diameter form the inner diameter of the gasket and superposed metal and non-metallic windings are continually wound until the required outer diameter is attained. Compatible with the flange closure in which it is to be used, spiral wound gaskets can be used over the complete temperature range from cryogenic to approximately 2000°F and in all pressures from vacuum to the standard 2500 psi flange ratings making it a high pressure and high-temperature gasket. These are more resilient than any other type of metallic gasket with higher flexibility and recovery characteristics to maintain a seal under variable working conditions.

ISO, IS, DIN, ASME, and all international standards