Figure-8 Blanks (Spectacle Flange)
A figure-8 blank (also called a Spectacle Blind Flange) is+ a pressure-retaining plate with one solid end and one open end connected with a web or tie bar.
A Spectacle Blank is a specialty flange made of two metal discs Spacer & Spade attached in the middle by a small section of steel. Figure 8 Flange get their name because they look like a pair of reading glasses, or spectacles. Spectacle flanges, also known as spectacle blind flanges, 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.
Size range:
- Size: 1/2" to 60", DN 12mm to DN 1500mm Asme B16.5
- Pressure class: Class 150 to Class 2,500, PN 2.5 to PN 250
- Facing: RF / RTJ
For pipe Flanges-regularly seperated for isolation, maintenance or reasons, a spectacle extrudes Solution. Typically, spec blinds was mounted in the open position so-your flow pipe operates and is normally. Blinds is mounted onto one of the $number so is need to isolate a, it ' s easy!
Advantages of Spectacle Flanges
- Spectacle flanges require no welding for installation
- Spectacle flanges from BANGDONG Flange have a wide range of pressure tolerances
- BANGDONG will manufacture spectacle flanges to your specifications
Spectical Blind Flange classes
- 150# RF Flange Rating
- 300# RF Flange Rating
- 600# RF Flange Rating
- 900# RF Flange Rating
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Stainless Steel Plate Flanges. If you have any question, please feel free to contact us.
Product Categories : Steel Flange > Spectacle Blind Flange
