Spiral wound gaskets from Metal Jacketed Gaskets Manufacturers are widely used in the oil and gas industry, especially in high working pressure and critical applications. Spiral wound gaskets are made by spirally winding prefabricated metal strips and fillers on the outer circumference of a metal mandrel. The metal tape/wire (the most common is 304SS or 316SS) is wound outward in a circular shape, and the filler material (the most common is graphite) is wound from the same direction in the opposite direction.

　　This leads to an increasing growth circle of alternating layers of filler material and metal tape. The guide ring of the spiral wound gasket allows the sealing element to be centered on the flange surface and provides additional radial strength and acts as a compression limiter. The outer metal ring of the spiral wound gasket fixes the winding of the gasket in place and centers the gasket between the flange bolts so that the sealing surface is aligned. This is our Spiral Wound Gaskets For Sale.

　　The finished product will be similar to the spiral wound gasket image below, and the various components discussed here are indicated by pressure rating labels

　　Corresponding to the flange pressure rating, spiral wound gaskets have 150, 300, 600, 900, 1500, and 2500 pressure ratings. Low-voltage grade (IE 150#) adopts a low-density structure, and the number of metal windings per unit width is small. High-density applications require a more flexible design, and a greater number of metal windings per unit width must be incorporated in the gasket design. Therefore, there is no datasheet covering all changes in spiral wound gasket design.

　　Material (winding and filling)

　　The material is identified by the color on the outer edge of the gasket. The stripes along the outer edge represent fillers (graphite, PTFE, etc.). MSI's spiral wound gasket color table shows the different material colors of the outer edge and filler used for gasket identification.

　　Inner ring (optional)

　　Spiral wound gaskets with an inner ring are common because the inner ring helps prevent so-called winding. When pressure is applied during the bolt connection, it may cause winding, which will loosen the winding on the inner diameter of the washer, causing many problems. This can also happen during the pigging process used when cleaning the pipeline.