Incoloy 825 spiral wound gasket

incoloy 825 spiral wound gasket

What Is Incoloy 825 Spiral Wound Gasket?

Other than the standard materials, spiral wound gaskets are often made from exotic alloys to suit demanding applications. An Incoloy 825 spiral wound gasket is an example, made from Inconel 825. Nickel, molybdenum, chromium, iron, and copper are the main elements that are used in making the material. Other than Inconel 625, it is considered the most important material for gasket manufacturing. High-temperature strength and creep rupture strength are two primary characteristics of an Inconel 825 spiral wound style RIR gasket.

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How To Install Alloy 825 Spiral Wound Gasket Outer ring?

This is how you can properly install an Alloy 825 spiral wound gasket outer ring.

  • The contact surfaces should be clean, and free from scratches, spots, or other flaws.
  • The gasket’s outer diameter should be smaller than that of the flange sealing surface. Also, its inner diameter should be slightly larger than the pipes.
  • Use the basic cross-bolting method with at least 3 passes. Ensure all the bolts have the same tension (as far as possible) for uniform sealing.
  • For shoulder flanges especially, place the gasket in the center of the flange.
  • The use of lubricants is not recommended.
  • Depressurize the system if you suspect a leakage. Proceed to install the gasket then.

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What Is The Purpose Of the Inner Ring In UNS N08825 Spiral Wound Gasket Inner Ring?

Other than the Style R and Style CG, other spiral wound gaskets come with an inner ring. These aren’t there for show and rather are an important structural component of the gasket. The UNS N08825 spiral wound gasket inner ring first and foremost acts as the compression stop. It not only saves the gasket from excessive damage but also eliminates the risk of buckling the winding materials. The inner ring also acts as a physical barrier guarding the sealing element against the medium flowing in the pipe.

Also, check the purpose of the inner ring in DIN 2.4858 spiral wound style CG gasket, buy Incoloy alloy 825 spiral wound style R gasket with prompt delivery in the entire Middle East and Asia

How To Make DIN 2.4858 Spiral Wound Style CG Gasket?

A DIN 2.4858 spiral wound style CG gasket has the sealing element and outer metal ring. The sealing element is made by alternatingly winding together preformed metal strips of Incoloy 825 and filler material. The general filler choices are graphite and PTFE graphite which create an efficient seal upon compression. Specialized equipment is used for gasket manufacturing. The final step in a Style CG gasket usually involves snapping the outer ring around the sealing element. Simply guiding the outer profiled edge of the sealing element on the outer ring groove does the job.

Purchase Inconel 825 spiral wound style RIR gasket for a reasonable price, know more about industrial uses

Why Use Nickel Alloy 825 Spiral Wound Style CGI Gasket?

The chemical composition of a nickel alloy 825 spiral wound style CGI gasket gives it an edge over other materials. This is primarily in terms of corrosion resistance. Being so, you can use the gasket risk-free in moderately oxidizing and moderately reducing environments. The gasket is also excellent at handling chloride stress corrosion cracking. So it can be used in high temperatures and marine environments without losing its efficiency or strength. The ASTM B564 nickel 825 inner and outer ring gasket therefore can be used in harsh environments. For example, in chemical processing components and nuclear fuel processing.

Importers & stockists of ASTM B564 nickel 825 inner and outer ring in GCC countries, see selection calculations

Basic Calculations For Incoloy Alloy 825 Spiral Wound Style R Gasket Selection

Keeping in mind the following points helps in efficient Incoloy alloy 825 spiral wound Style R gasket selection.

  • Nominal pipe size with which you are to use it.
  • Pressure class of the connecting flange.
  • Whether the gasket follows ASME standards.
  • Style of the Incoloy spiral wound gasket.
  • Standard of the flange.
  • Nature of the medium (not always necessary).
  • Design and operating temperature of the piping system (not always necessary).