Cangzhou Bohai Pipe Co., Ltd. 20 # forging professional blind flange blind plate stiffened isolation, cut off the role, and the head, the hat, welding plugs role is the same. Because of its good sealing performance, the need for a system completely isolated, usually as a reliable means of isolation. 8-word blind is a solid shank circle for normal conditions for an isolated system. The 8-word blind plate, shaped like a figure 8, one end of the blind, the annual manufacture 20 # flange, the other side is a throttle ring, but the same diameter as the diameter of the pipe, does not play a throttling effect. 8-word blind plate, easy to use, you need isolation, 20 # flange latest offer, the use of blind-side, you need to normal operation, the throttle loop end, but also can be used to install the pipeline to fill the gap blind plate. Another feature that identifies clear, easy identification installation status. Cangzhou Bohai Pipe Fittings Co., a variety of standard pipe flanges Standard flange 20 # There are two main international system, namely the German DIN (including the former Soviet Union), represented by the European pipe flange system and the American ANSI pipe flanges on behalf of the American pipe flange system. In addition, there are Japanese JIS pipe flanges, but in the petrochemical unit generally used only for public works, 20 # flange large favorably, and less influence in the world. States will now be under flange Profile: 1, Germany and the former Soviet Union as the representative of the European System of pipe flanges 2, Inter-American system of standard pipe flanges to ANSI B16.5 and ANSI B 16.47 represented 3,20 # Method blue, Britain and France of standard pipe flanges, each with two sets of standard pipe flanges. To sum up, the international standard pipe flanges can be summarized through two different and not interchangeable flange system: a representative of Germany's European pipe flange system; the other is the US Representative American pipe flange system. IOS7005-1 is a standard issued by the International Standards Organization in 1992, the standard is actually the United States and Germany, two series of pipe flanges merger of standard pipe flanges. 20 # flanges, Cangzhou Bohai, GB 20 # flange price offered by Cangzhou Bohai Pipe Fittings Co., Ltd. 20 # flanges, Cangzhou Bohai, GB 20 # flange price Cangzhou Bohai Pipe Fittings Co., Ltd. (www.czbh628.com) (www.hbbh628.com) this year introduced a new upgrade, the above picture is for reference only, please dial this page or on the telephone picture to obtain the latest information, contact: Zhangsong Wei.