stainless steel Blind flanges(BL) From the appearance point of view, the blind plate is generally divided into a plate type flat plate blind plate, a figure-eight blind plate, a plug-in board, and a backing ring (the plug-in board and the backing ring are blind to each other). The blind plate plays the role of isolation and cutting, which is the same as that of the head, pipe cap, and welding plug. Because of its good sealing performance, it is generally used as a reliable isolation method for systems that require complete isolation. The plate-type flat blind plate is a solid circle with a handle, which is used in systems that are normally isolated. The figure-eight blind plate is shaped like a figure eight, one end is a blind plate, and the other end is a throttle ring, but the diameter is the same as the pipe diameter of the pipeline, and it does not play a throttling effect. The 8-shaped blind plate is convenient to use. When isolation is required, the blind plate end is used. When normal operation is required, the throttle ring end is used. At the same time, it can also be used to fill the installation gap of the blind plate on the pipeline. Another feature is that the logo is obvious and the installation status is easy to identify.