Spiral Wound Gaskets Installation

The most typical metallic gasket seen in industrial facilities is a spiral wound gasket. High temperatures and pressures may be handled by a correctly chosen and installed spiral-wrapped gasket, which prevents leaks for the duration of its specified lifespan.

 

Three things make up a spirally coiled gasket:

Outside ring: This outer ring, which is made of carbon steel, is also known as the centering ring or the guide ring.

 

Ring within: Because it prevents pipe windings from buckling, the inner ring is crucial for the gasket. Parts of a gasket that buckle are drawn into the pipe. Parts of the gasket will then often continue to flow down the pipeline until they catch on something. They frequently become entangled in moving machinery, such as a pump. A bird's nest is the term used to describe the ensuing chaos. Inner rings aid in preventing this issue.

 

Sealing component: The sealing element forms the seal that stops leaks, as you could infer from the name. A sealing element contains both Windings and filler material. A flexible graphite filler material approved for high temperatures will be used in the majority of spiral-wrapped gaskets in oil and gas refineries. The gasket from spiral wound gasket supplier can be more forgiving of joint misalignment and flange distortion thanks to a flexible graphite filling. The filler material polytetrafluoroethylene (PTFE) is another popular choice. However, PTFE is not approved for use in high-temperature applications. Monel and stainless steel will make up the majority of the winding materials in refineries.

 

Things to Know Before Installing Spiral Wound Gaskets

There is no compression stop in the outer ring. Despite what some manufacturers claim, the outer ring does not act as a compression stop. You effectively have a flat metal gasket from spiral wound gasket manufacturer if your gasket experiences enough seating stress to compress to the outer ring; this provides you little to no recovery when your plant cycles and the flange faces separate as a result of thermal expansion.

 

Contrary to popular belief, flange faces do not contact the sealing element flatly. The raised-face of a raised face flange is the pivot point for a lever if you look at the flange faces of the flange. The nuts are clamping together at the end of the lever.