Cangzhou Bohai Pipe Co., Ltd. 20 # forging shaped flange welded flange with neck high pressure means with a neck and a tube transition and connected with the pipe welded flange, with neck pressure welded flange for pressure or fluctuations in temperature or high temperature Shuozhou flat welding line 20 # flange, high pressure and low temperature piping Shuozhou flat welding 20 # flanges, but also for transport is expensive, pipeline flammable, explosive media. Pressure welded flange with a neck flat welding deformation is not easy Shuozhou 20 # flange, sealed, widely used, PN at about 16MPa. Advantages: 1, connecting pipes and pipe sealing performance can be maintained. 2, easy to replace certain pipeline. 3, easy to open inspection line situation. 4, to facilitate the closure of certain pipeline. Cangzhou Bohai Pipe Co., Ltd. specializing in the production of 20 # Flange basic standards of national standard: GB / T9112-2000 (GB9113 · 1-2000 ~ GB9123 4-2000?) American Standard: ANSI B16.5 Class150,300,600,900 , 1500 (WN, SO, BL, TH, LJ, SW) Japanese standard: JIS 5K, 10K, 16K, 20K (PL, SO, BL, WN, TH, SW) German standard: DIN2573,2572,2631,2576, 2632,2633,2543,2634,2545 (PL, SO, WN, BL, TH) Ministry of Chemical Industry Standard: HG5010-52 ~ HG5028-58, HGJ44-91 ~ HGJ65-91, HG20592-2009 (PN series) \ HG20615- 2009 (Calss series) machinery of the standard: JB81-59 ~ JB86-59, JB / T79-94 ~ JB / T86-94, JB / T74-1994 Pressure Vessel Code: JB1157-82 ~ JB1160-82, JB4700-2000 ~ JB4707-2000 Applications: boilers, pressure vessels, petroleum, chemical, shipbuilding, pharmaceutical, metallurgy, machinery, food and other industries. 20 # flange DN200, professional forging (online consultation), Shuozhou 20 # flange provided by Pipe Co., Ltd. Cangzhou Bohai. Cangzhou Bohai Tube Co., Ltd. (www.czbh628.com) (www.hbbh628.com) is an industry leader in Cangzhou, Hebei, three, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customers needs. Cangzhou Bohai leadership with the staff warmly welcome all inquiries negotiations to create a better future Cangzhou Bohai.