Figure-8 Blanks

A (also called a Spectacle Blind ) is+ a pressure-retaining plate with one solid end and one open end connected with a web or tie bar.

Size: 1/2” to 60”, DN 12mm to DN 1500mm
Pressure class: Class 150 to Class 2,500, PN 2.5 to PN 250
Facing: RF / RTJ

A spectacle flange is a specialty flange made of two metal discs attached in the middle by a small section of steel. Spectable get their name because they look like a pair of reading glasses, or spectacles. Spectacle , also known as spectacle blind , are most commonly used on piping systems that need to be separated regularly or where the flow through the systems is regularly stopped. One end of the spectacle flange is solid, while the other end has a hole in the center. The spectacle flange can be rotated to place either the solid or hollow end within the pipe system, thereby opening or closing the flow.

Spectacle Flanges

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Advantages of Spectacle Flanges
  • Spectacle flanges require no welding for installation
  • Spectacle flanges from Sunny have a wide range of pressure tolerances
  • Sunny Steel will manufacture spectacle flanges to your specifications
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