DIN Blind Flanges Blind flange, also known as blind flange, its real name is blind plate. It is a form of connection of flanges. In fact, it is a flange without a hole in the middle. One of its functions is to block the end of the pipeline, and the other is to facilitate the removal of debris in the pipeline during maintenance. As far as the blocking effect is concerned, it has the same effect as the head and the cap. However, there is no way to disassemble the head, and the flange blind plate is fixed with bolts, which is very convenient to disassemble. Flange blind plates are made of carbon steel, alloy steel, stainless steel, plastic and so on. Flange blind plate plays the role of isolation and cutting, and the role of head and pipe cap is the same. Due to its good sealing performance, it is generally used as a reliable means of isolation for systems that require complete isolation. A blanking plate is a solid circle with a handle for systems that are normally isolated. The figure 8 blind plate is shaped like a figure 8, one end is a blind plate, and the other end is a throttling ring, but the diameter is the same as the diameter of the pipe, and it does not play a role in throttling. Figure 8 blind plate is easy to use. When isolation is required, the blind plate end is used. When normal operation is required, the throttle ring end is used. It can also be used to fill the installation gap of the blind plate on the pipeline. Another feature is the obvious identification, easy to identify the installation status. FAQ What is the DIN standard for flanges? DIN standards use Pressure Ratings (PN) to specify pressure classes - for example, PN16 is suitable for use up to 16 bar at ambient temperature. The ANSI standard lists "ratings," which are pressure-temperature ratings based on PSI, and different pressure ratings based on maximum temperature. What is the difference between ASME and DIN flanges? The table shows that DIN requires tighter tolerances than ASME. For 陆 inch drives, DIN allows a tolerance of 0.11, while ASTM allows 0.218, resulting in a 0.108mm difference. In other words, DIN and ANSI impact sockets are not the same, and their differences should be carefully noted.DIN Blind Flanges website:http://www.huashuoflange.com/blind-flanges/din-blind-flanges/