Hebei Chiho Pipe welded flange common production standards: Ministry of Chemical Industry standard HG / T20592-2009, HG / T20615-2009, the national standard GB / T9115.1-2000, GB / T9115.2-2000, GB / T9115. 3-2000, GB / T9115.4-2000, machinery of the standard JB / T86.2-94, marine standard CB / T47-1999 Chiho Hebei Industry with neck butt flange means and a tube with a neck transition and the tube butt weld flanges. Welded flange for pipe or high temperature, high pressure and low temperature fluctuations pipeline pressure or temperature, but also for pipeline transport is expensive, flammable, explosive media. Not easily deformed steel welded flange welded flange, sealed welded carbon steel flanges, widely welded carbon steel flanges machining, nominal pressure PN at about 16MPa. Butt flange with nominal size is changed, resulting in equal diameter flange often can not butt pressure welded carbon steel flanges, ordering, practice manufacturing, transportation, installation, repair and maintenance is very troublesome, to 0.25 , 0.6 MPa 1.0 MPa flange using the butt size, thickness still use the original three sizes, in order to achieve the docking size of simplicity. 105 welded carbon steel flanges | Hebei Chiho (certified) | welded steel flange provided by Chiho Hebei Industry Co., Ltd. Hebei Chiho Pipe Co., Ltd. (www.hbqh628.com) (www.hbqh628.com) Hebei Cangzhou, forging leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer demand. Hebei Chiho leadership with the staff warmly welcome all inquiries negotiations to create the Hebei Chiho better future.