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Metal Jacketed Gaskets

Metal Jacketed Gaskets, as the name suggests, are comprised of a metallic outer shell with either a metallic or non-metallic asbestos free filler. The filler material gives the gasket resilience, while the metal jacket protects the filler and resists pressures, temperatures and corrosion.

  • Metal Jacketed Gaskets
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  • 1. Single Jacketed Gasket
     

    Style 120 has one of its contact surfaces covered and is ideally suited for comparatively narrow flange widths in circular and non-circular configurations. Typical low pressure applications include boilers, compressors, pumps and diesel and gasoline engines. This style is not recommended for standard pipe flanges. Minimum flange width 1/4" (6.4mm). Nominal gasket thickness 1/8" (3.2mm).

     

    Style 124 is an overlapped Single Jacketed Gasket, where the filler is completely enclosed on the inside and outside diameters and on both contact surfaces. This style is more suited for high temperature applications of narrow flange widths.

    The filler material is enclosed in a metal jacket which covers the inside and outside diameter of the gasket.

    The filler material is enclosed in a metal jacket which covers the inside and outside diameter of the gasket.

  • 2. Double Jacketed Gasket
     

    Double Jacketed Gaskets are used on boiler and heat exchanger applications when ample bolting is available to correctly seat the gasket . They are designed for high pressure and temperature applications up to and inclusive of class 900. The temperature limitation of the gasket is dictated by the combination of metallic and non-metallic materials used in its construction.

    Flange widths as narrow as 5/16" (8mm) can be manufactured dependent on diameter. Very large gasket diameters can also be produced. Nominal gasket thickness is 1/8" (3.2mm).

    Gaskets can be manufactured with either integral or welded pass partition bars, in a variety of complex configurations.

    In Style 123 the filler material is completely enclosed by a two piece metal jacket, which covers both the inside and outside diameters and both contact surfaces.

     

     

    Style 126 is similar to Style 123 with the exception that the metal jacket is formed from a corrugated jacket providing better resilience than the Style 123, since the corrugations form multi-seals across the flange sealing face.

     

     

    Style 127 is a double shell gasket constructed of two reversed wrap-round shells. This provides superior flange support and handleability and provides better resistance to high pressures.

     

     

     

  • 3. Solid Corrugated Metal Gaskets
     

    As the name suggests, the solid corrugated metal gasket is comprised solely of metal and does not contain any non-metallic fillers in its construction. The temperature limitation of the gasket is only affected by the metal selected.

    Style 100, a Corrugated Metal Gasket, has corrugations that provide multi-seals across the face of the gasket. Pitch of of the corrugations can be 1/8", 3/16" or 1/4". Three concentric corrugations on each side of the gasket are suggested. Where practical a flat area should be left on each side of the corrugations.

     

    Style 102, a Single-Jacketed Gasket, is a Corrugated Metal Gasket enclosed in a flat metal jacket that covers the inside and outside diameters of the gasket and the contact surface on one side.

    Typically used for high temperature applications and applications involving steam, water, gas, oil etc. up to 1000 psi in the case of Style 129 and 102, and up to 500 psi in the case of Style 100.

Metal Jacketed Gaskets are manufactured using hand made techniques, and are available in a wide range of sizes and configurations.

They are traditionally used for heat exchanger applications, pumps and valves, however the resilience and recovery properties of these gaskets are limited. Metal Jacketed Gaskets require smooth flange surface finishes, high bolt loads and flange flatness in order to seal effectively.

A wide range of materials are available to suit specific temperature and corrosive conditions.

Metallic: Aluminum, Brass, Copper, Soft Iron, Stainless Steel, Monel, Nickel, Inconel

Non-Metallic: Non-asbestos, Millboard, PTFE, Flexicarb®, Ceramic

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