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Metal Gaskets; Spiral Wound Gaskets from American Seal and Packing

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Metal Gaskets

Metal Gaskets

We offer a wide range of metal gaskets

Spiral Wound Gaskets 

Spiral wound gaskets are special semi-metallic gaskets of great resilience, therefore they are very suitable for applications featuring heavy operating conditions. Spiral wound gaskets are manufactured by spirally winding a V-shaped metal strip and a strip of non-metallic filler material. The metal strip holds the filler, providing the gasket with mechanical resistance and resilience. Spiral wound gaskets can be reinforced by an outer and/or inner retaining ring. The outer centring ring controls the compression and holds the gasket centrally within the bolt circle. The inner retaining ring increases the axial rigidity and resilience of the gasket. Spiral wound gaskets should always be in contact with the flange and should not protrude into the pipe or project from the flange. Spiral wound gaskets can be used for sealing flange joints, manhole and handhold covers, tube covers, boilers, heat exchangers, pressure vessels, pumps, compressors and valves; in industries such as petrochemical, pharmaceutical, shipbuilding, and food processing, in power industries and nuclear power stations. They are ideal for steam, oil, liquids, gases, acids, alkalines, various organic media and solvents.

Metal Jacketed Gaskets

Metal-jacketed gaskets are particularly suitable for sealing flat surfaces of heat exchangers, gas pipes, cast iron flanges, and autoclaves and similar.  By their sealing efficiency, provided by exerting strong pressure on circular rims of the flanges, metal-jacketed gaskets can stand up to 30 % of deviation from the initial thickness, which is very useful in case of irregular or faulty flange rims. The chemical compatibility of the metal and the medium being sealed should be considered

Heat Exchanger Gaskets

Heat Exchanger Gasket is a term that has been given to gasket used in heat exchangers. The structure of the gasket or its type vary according to operating conditions of the exchangers. The  heat exchanger gaskets come in a broad spectrum of types including single or double jacketed, corrugated, plain metal, soft and many other. A large selection of different materials allows heat exchangers to operate at temperatures beyond the capabilities of most soft gasket materials.

Ring Joint Gaskets

The metallic ring joint gaskets are manufactured according to the API 6A and ASME B16.20 standards for application at elevated temperatures and pressures. The small sealing area with high contact pressure results in great reliability. The contact surfaces of the gaskets and flange should be carefully processed. Some types of ring-joints are pressure activated, that is, the greater the pressure the better the sealability.

Metal Gaskets

Corrugated metal gaskets have been proven to be both reliable and cost-effective for the application on flanges and heads where bolt loading is sufficient. They operation principle is based on different degrees of hardness of adjacent materials. The sealing effect is produced by the constant load to which a gasket is exposed. They are used in applications, which require mechanical strength, thermal conductivity, as well as temperature and corrosion resistivity. They can be classified into flat, serrated and corrugated types, and are particularly useful when compressibility is not a factor and where sufficient clamping force is available. Metal gaskets feature greater mechanical strength, better heat transfer and resistance to higher temperatures and pressures, and can offer advantages over the clad type gaskets in certain applications.

Metal Gaskets

  • Aflas sheet gasket material


    We cut gaskets from Aflas sheet gasket material. Aflas is an elastomeric based flouorubber, a copolymer of tetrafluroethlene and propylene.

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  • EPDM Cut Gaskets


    EPDM gaskets provide excellent chemical resistance*, and good electrical properties. This material meets ASTM D-2000-2BA specifications.

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  • Nitrile Gaskets

    Nitrile Gaskets

    We cut Nitrile Gaskets (also called Buna-N) from any of the following Nitrile gasket materials. Nitrile-N Gaskets Good resistance to many oils and chemicals.

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