Metal jacketed gasket is a type of Heat Exchanger Gasket which comprise of a thin metallic outer shell enclosing a resilient filler material. The gasket metal case protects the resilient filler and is resistant to pressure, temperature and corrosion.

Metal jacketed gaskets are hand made and are available in many shapes and sizes with a selection of metals and fillers. Internal ribs of any configuration are also available.

Basic Components

QDJ1 METAL JACKETED GASKET

The most popular style for heat exchangers, the double-jacketed gasket offers complete protection of the filler material. There is practically no diameter limitation, with greater compressability 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 flanges.
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.

QDJ2 METAL JACKETED GASKET

The corrugated style has increased resilience with the benefit of a 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.

QDJ3 METAL JACKETED GASKET

This gasket employs a metal filler rather than graphite or other soft material. The result is greater resistance to problems resulting from temperature changes. The range of temperature is limited only by the metal selected.

QDJ4 METAL JACKETED GASKET

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

QDJ5 METAL JACKETED GASKET

Affording the advantages of the standard double jacketed gasket, the double shell style allows greater strength and rigidity by the addition of a completely overlapping inner shell. This gasket has a minimum flange width of 1/4”, and can be produced in almost any diameter. As with other heat exchanger gaskets, there is a greater variety of available metals and filler materials.

QDJ6 METAL JACKETED GASKET

A gasket with completely enclosed filler offering more filler protection than the standard single gasket. Especially useful for applications requiring small flange widths (to 1/8”). Certain sizes may require tooling to produce.

QDJ7 METAL JACKETED GASKET

The two piece French Style gasket is more readily available and easier to produce than the one-piece French Style which requires expensive tooling. The soft filler is exposed on the outside diameter and the minimum flange width is 1/4”. Size of diameter is practically unlimited.

QDJ8 METAL JACKETED GASKET

This gasket combines advantages of metal shielding on the I.D. with a thick, compressable layer of soft gasket material on either side of the metal. Metal thickness is 26 gauge, tack welded together and then rolled over on the ID, acting as a shield. The layers of soft gasket materials are available in various densities and thicknesses.