Hebei Chiho tube industry; large plate flat welding flange main dimensions and connecting dimensions reference plate flat welding flange (flange) connection is the two pipes, fittings or equipment high pressure steel flanges, each fixed in a first flange on the disc between two flanges, plus flange gasket flange steel processing, steel flange bolts are fastened together by map processing, complete the connection. Some fittings and equipment already comes with flange disk, also belong to the flange connection flange connection pipeline construction is an important large plate flat welding flange flange connection easy to use, able to withstand greater pressure .. Hebei Industry Chiho introduce carbon steel flanges.; steel flange Common standards: GB: 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) high-pressure steel flanges, Hebei Chiho (certified), alloy steel flanges 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.