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Carbon steel Figure-8 flanges
Carbon steel Figure-8 flanges, commonly known as Spectacle Flanges, are special piping components used to isolate or reconnect a section of pipeline without removing the flange assembly. They are ideal for applications requiring frequent maintenance, inspection, or testing because the “figure-8” shape allows quick opening or closing of a line by simply rotating the flange.

Carbon steel figure 8 flanges(Spectacle Flanges)

9 999 999,00¥Цена

  • Core Functions

    • Pipe Isolation: Allows a section of pipe to be opened or blocked without dismantling the flange connection

    • Maintenance & Testing: Provides easy access for pressure testing, cleaning, or inspection

    • Temporary Line Closure: Acts as a removable blind when needed

    Key Features

    • Material: Made from carbon steel (e.g., ASTM A105 or equivalent), offering strength and affordability for industrial use

    • Design:

      • One side with a through bore (open flange)

      • One side blind (solid plate)

      • Connected in a figure-8 shape so the assembly can be rotated to open or close flow

    • Standards Compliance: Manufactured to ASME/ANSI, DIN, EN, or other international standards depending on region and industry code

    • Pressure Ratings: Available in standard ANSI/ASME pressure classes (e.g., 150 #, 300 #, 600 #, etc.)

    • Surface: Machined flange faces suitable for gasket seating and reliable sealing

    • Finish Options: Often supplied with protective coatings (e.g., primer, paint) to improve corrosion resistance

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