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Metal Gaskets

What are Gaskets?

Metal or Metallic Gaskets creating tight reliable seals between the contact faces of a joint in demanding industrial settings, especially those involving high temperatures and pressures. Understanding the application and other factors like environment and chemical exposure are needed to choose the right material, design, type and dimensions in order for the gasket to perform as required. Gaskets fall into two main application categories.

Sealing Function: where preventing leaks, pressure, or the escape of gases or fluids is crucial.

High Temperature and Pressure Resistance: Metallic gaskets can withstand these harsh environments due to their durability and resistance to deformation when compressed.

Industrial Applications:

Gaskets are commonly used in industries such as petrochemical, oil and gas, power generation, and automotive and found in equipment like engines, condensers, pumps, valves, and pipelines. They are also used in the automotive sector, where they can be used in exhaust systems, cylinder head gaskets, and more.

Gasket Materials:

Gaskets can be made from different metallic materials depending on the specific requirements of the application. Materials include carbon steel, stainless steel, copper, aluminum, and exotic metals. Our engineering department will help you to select the right material for your specific application. We also encourage you to read our “Gasket Deign Guide” for a general overview of design considerations.

Types of Gaskets:

Corrugated Gaskets

Corrugated gaskets are manufactured using a thin metal sheet that has been corrugated, or ridged, to increase flexibility and resilience. These are a good choice for low to medium pressure applications and are often used with flanges that have uneven surfaces. The ridges help seal and adjust to surface imperfections. This makes them good for situations where temperature changes cause surfaces to expand and contract.

Spiral Wound

Spiral wound gaskets consist of a metal strip wound in a spiral with a filler material, typically graphite or PTFE, interweaved between the layers of metal. This design has a strong and flexible seal. It works well in high-pressure and high-temperature situations. Spiral wound gaskets are often used in oil and gas, petrochemical, and power generation industries for flanges, valves, and pumps.

Solid Metal Gaskets

Solid gaskets are cut or stamped from solid metal sheets and are used in applications requiring high temperature and pressure resistance. They are good for sealing uneven surfaces and are often used in exhaust systems, heat exchangers, and high-pressure pipes. Due to their rigidity, they require a higher clamping force than other types of gaskets to achieve an effective seal.

Single Metal Jacket

Single metal jacket gaskets consist of a soft, compressible filler material that is completely enclosed in a thin metal jacket. This design provides improved sealing capabilities and protection for the filler material, making it suitable for applications involving steam, heat transfer fluids, and mild chemicals. They are often used in heat exchangers and pipe flanges where a metal-to-metal seal is not required but protection against corrosive or abrasive media is necessary.

Two-Piece Metal Jacket

Two-piece metal jacket gaskets, also known as double-jacketed gaskets, have a soft filler material enclosed between two metal layers. This construction provides enhanced sealing performance and durability compared to single-jacketed gaskets, making them suitable for high-pressure and high-temperature applications, particularly in large flange connections found in the power generation and marine industries.

Grooved Gaskets

Grooved metal gaskets feature a metal core with concentric grooves on one or both sides, filled with a sealing material such as graphite or PTFE. The grooved design enhances the seal’s resilience and allows for better compression and recovery, making these gaskets ideal for applications with fluctuating temperatures and pressures. They are commonly used in pipeline systems, heat exchangers, and pressure vessels.

Ring Gaskets

Ring gaskets, also known as RTJ (Ring Type Joints), are solid metal gaskets designed to seal by “initial line contact” or wedging action between mating flanges. They are typically used in high-pressure and high-temperature applications, such as oil and gas production, refining, and petrochemical industries.

Each gasket type is designed to meet specific sealing requirements, taking into account factors such as pressure, temperature, media, and flange type. AMG has extensive experience in many industries and will help you select the appropriate gasket style ensuring a reliable seal and optimal system performance.

Why Chose AMG Products?

AMG Products has been supplying a wide range of industries with metallic gaskets since 1904. We have extensive experience working with a variety of metals and configurations. Our experience enables us to better understand your requirements and offer a wide variety of tooling configurations to minimize any tooling costs associated with your sealing device needs.

We understand time is critical, let us work with you to develop a custom stocking program to ensure you have parts on the shelf every time they’re needed.

Explore Our Gasket Design Guide