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Spectacle Flange

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Home Flanges Spectacle Flange

SPECTACLE FLANGE MANUFACTURERS & SUPPLIERS

A Spectacle flange is a special type of pipeline flange which is one of the extensive range of flanges manufactured and supplied by Instinox. Spectacle Flanges are exclusive pipeline accessories which are used to separate two pipes and control the flow of liquids or gases in it. They are pivotal in isolating a section of a pipeline when needed. Instinox has been manufacturing, supplying and exporting specialised piping equipment since 15 years. The industry experience and production quality, packaging and after sales service of Instinox is incomparable.

Instinox is an extremely reliable manufacturer when it comes to spectacle flanges because of the premium raw materials used and the importance of details in each product. Instinox always ensures the precise quantity of each metal and alloys used as specified by the buyer. The Spectacle Flanges by Instinox are the best in quality and highly corrosion resistant. They are available in different grades of materials as per the demand of the buyer.

The ease of personalization in the production, impressive packaging and unmatched delivery speed make Instinox the Go-to company for Flanges.

A spectacle Flange, also called, a spectacle blind, works as a safety device in pipelines. It is used to control the flow of substances in the pipes by isolating any section of the pipe. It is a permanent isolation device for pipes, made up of two metal discs that are attached to each other by another section of steel.It structures like the number ‘8’, with one side of a steel ring while the other filled with a steel plate in the ring. The shape of this Flange resembles a pair of spectacles, hence the name. The open end of the blind flange will allow they flow through the pipe during operation whereas the other solid end of the blind is used to block the flow through the pipe during maintenance. Hence, flanges are subjected to excessive pressures and corrosive elements.

FEATURES OF SPECTACLE FLANGE

  • They are used to restrict the ends of valves, pressure vessel openings and ends of pipes
  • Spectacle flange suppliers with NTO fittings which enable pressure tests connections to be fitted.
  • Constant exposure to internal pressure and bolt cramping are major stressors to all kinds of flanges.
  • They are made of all sizes, dimensions, to fit standard pipes of all sizes.

DIMENSIONS & STANDARDS

Dimensions and standards of Spectacle Blinds (SB – Spectacle Blind)

  • ASME standards
  • AASME B16.5 – pipe Flanges and flanged fittings: ½ through NPS Metric/Inch standard.
  • ASME B16.20 – metallic gaskets for pipe flanges: Ring-joint, spiral-wound and jacketed
  • ASME B16.47 – large Diameter steel Flanges: NPS 26 through NPS 60 Metric/ inch standard.
  • ASME B16.48 – Line Blanks leo.

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GRADES

Grades of materials used to make Spectacle Flange:

  • Stainless steel
  • Alloy steel
  • Carbon steel
  • Duplex steel
  • Copper Nickel Alloy
  • Hastelloy
  • Titanium
  • Alloy 20
  • Monel
  • Inconel

APPLICATIONS OF SPECTANGLE FLANGE

  • Industrial processes
  • Natural gas and petroleum industry
  • Chemical industries
  • Shipbuilding industries
  • Metallurgy
  • Power supply
  • Paper-making industry
  • Boilers, water and oil supply
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