The role of the blind flange blind flange plate stiffened isolated, cut off the role, and the head, the hat role is the same. Because of its good sealing performance, the need for complete isolation systems, generally as a reliable means of isolation. Blind is a solid round shank for system under normal conditions in the isolated state. The 8-word blind plate, shaped like eight words, one end is blind plate, the other end of the throttle ring, but the same diameter as the diameter of the pipe, does not play a role in the throttle. 8-word blind plate, easy to use, you need isolation, blinding plate end, normal operation when needed, using the throttle ring-side, but can also be used to install the pipeline to fill the gap blind plate. Another significant feature is the identification, easy to install state recognizable.