Figure 8 Blind Flange

The shape is similar to a pair of glasses or spectacles hence the name spectacle blind.

Figure 8 blind flange.

One end of the spectacle flange is solid while the other end has a hole in the center. Carbon steel units are available from stock. 1 2 to 60 dn 12mm to dn 1500mm. Other materials are available on request.

304 and 316 stainless steel units are also readily available. Spectacle flanges also known as spectacle blind flanges also called figure 8 blank figure 8 blank flange are most commonly used on piping systems that need to be separated regularly or where the flow through the systems is regularly stopped. This kind of flange is generally a piece of metal than is cut to fit between two pipe flanges and usually sandwiched between two gaskets a spectacle blind is often made from two metal discs that are attached to each other by a small section of steel. Spectacle blind flange also known as figure 8 flange which is combination of the two that can be rotated to function as single bind or a ring spacer.

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. 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.