Gasket

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Gasket[edit | edit source]

Various types of gaskets

A gasket is a mechanical seal that fills the space between two or more mating surfaces, generally to prevent leakage from or into the joined objects while under compression. Gaskets allow "less-than-perfect" mating surfaces on machine parts where they can fill irregularities. Gaskets are commonly produced by cutting from sheet materials.

Types of Gaskets[edit | edit source]

Gaskets come in many different designs based on industrial usage, budget, chemical contact, and physical parameters:

Sheet Gaskets[edit | edit source]

Sheet gaskets are cut from a flat sheet of material. They are used in a wide range of applications and can be made from various materials, including rubber, cork, and asbestos.

Spiral Wound Gaskets[edit | edit source]

Spiral wound gaskets are made by winding a metal strip and a filler material, such as graphite, together. These gaskets are used in high-pressure applications.

Ring Gaskets[edit | edit source]

Ring gaskets are used in flange connections and are typically made of metal. They are designed to withstand high pressures and temperatures.

Materials[edit | edit source]

Gaskets can be made from a variety of materials, each suited to different applications:

Rubber[edit | edit source]

Rubber gaskets are used in applications where flexibility and resilience are required. They are commonly used in plumbing and automotive applications.

Cork[edit | edit source]

Cork gaskets are used in applications where compressibility and flexibility are needed. They are often used in oil and fuel systems.

Asbestos[edit | edit source]

Asbestos gaskets were once widely used due to their heat resistance and durability. However, due to health risks associated with asbestos, their use has declined significantly.

Non-Asbestos[edit | edit source]

Non-asbestos gaskets are made from materials such as fiberglass, aramid, and PTFE. These materials offer similar properties to asbestos without the associated health risks.

Applications[edit | edit source]

Gaskets are used in a wide range of industries and applications, including:

  • Automotive: Used in engines, transmissions, and exhaust systems.
  • Aerospace: Used in aircraft engines and fuel systems.
  • Industrial: Used in pipelines, chemical processing, and power generation.

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