Jacketed Gaskets

Jacketed Gaskets

Jacketed gaskets combine the temperature resistance of a metal jacket with the sealing performance of soft filler. Jacketed gaskets shall be made with a filler material enclosed in metal jacket. The jacket metal thickness shall be a minimum of 0.38mm (0.015in). The filler thickness shall be a minimum of 15mm (0.06in). The jacket and filler materials are selected to optimizes temperature and chemical performance, construction style is dictated by pressure needs, gasket geometry and sealing issues.

There are many different styles of jacketed gaskets available. The following is a selection of the most commonly used styles.

The single jacket gasket with soft filler protects both edges of filler material. This gasket is generally used for applications where narrow width is required. It is an economical answer to many gasket needs. Single Jacketed gaskets are available with corrugated metal fillers.

The double jacket gasket offer complete protection of the filler material. There is practical no diameter limitation with greater compressibility and resilience than a similar solid metal gasket. This gasket provides even support by the use of the overlapped jacket on the inside and outside diameters. Also, the outside lap helps to prevent excessive distortion of light weight flange. The most common filler used is graphite. A wide range of metal and filler material is available if dictated by temperature, pressure or corrosive conditions.

The double jacket corrugated has increased resilience with the benefits of number of seal points. If a small leakage occurs across the inside edge, the corrugations act as separate seals under moderate and even bolt loads.