Figure 8 Blind Flange

A spectacle blind also known as a figure 8 blind is generally a piece of metal that is cut to fit between two pipe flange and usually sandwiched between two gaskets.

Figure 8 blind flange.

A spectacle blind is often made from two metal discs that are attached to each other by a small section of steel. One end of the spectacle flange is solid while the other end has a hole in the center. 304 and 316 stainless steel units are also readily available. Flowell spectacle figure 8 blinds thicknesses are in accordance with api 590 to assure that these units will withstand the temperature and pressure of an ansi rated flange.

1 2 to 60 dn 12mm to dn 1500mm. 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. 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. Other materials are available on request.

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. The shape is similar to a pair of glasses or spectacles hence the name spectacle blind. One end of the spectacle flange is solid while the other end has a hole in the center.