Figure 8 blind is a pipe fittings, mainly for easy maintenance, the specific shape you can "8" the upper part of the black painted to know.
It's half blind, half hoop. Commonly used in the need to change the flow of pipeline Flange, material mainly carbon steel, stainless steel, alloy, according to the pipeline pressure grade and pipeline medium to choose. Use meaning, usually used in a larger pipe diameter on the pipeline, usually with the flange at one end to occupy the space to keep the pipeline smooth, if need to change the other end of the same thickness of the blind plate to cut off the pipeline. To avoid the temporary replacement of other blind caused by forced expansion of the pipeline, affecting the entire system.
