National Standard of the People's Republic of China Straight thread connector forbutt joints-Body Marking example: Nominal pressure. Grade, pipe outer diameter D 11mm ferrule end butt straight joint body: joint: body J14GB 3754.2-83 National Bureau of Standards 1983-0617 issued UdC 621.643.4 GB3754.2-83 1984-04-01 implementation Nominal tubebZxz.net Woli outer bell (bar) (25h) M27×2 M33 ×2 M42×2 (M48×2) M50×2 M22 ×1.5 M27 ×2 M33×2 GB 3754.2-83 13.7/16.5 2315.718.5 Note: (The dimensions in brackets in column d are only applicable to old products. The weight is the calculated value, and the specific gravity is 7.85kg/dm3. The technical conditions are in accordance with the provisions of GB3765-83. Additional instructions: M 12× 1.25110.7 24.7 M14 ×1.5 M30×2 M33×2 M36×2 M45×2 M48×2 M52×2 M30×2 M33×2 M3G×2 M39×2 (kg/100 pieces: This standard was proposed by the Ministry of Machinery Industry of the People's Republic of China and is the subject of the Standardization Research Institute of the Ministry of Machinery Industry. 27 This standard was drafted by the Standardization Research Institute of the Ministry of Machinery Industry, and was drafted by Shenyang Heavy Machinery Plant, Heavy Automobile Research Institute, Dalian Combined Machine Tool Research Institute, Haiyan County Pipe Fittings of Zhejiang Province, Shanghai No. 1 Mechanical and Electrical Bureau Science and Technology Information Institute, and the 708th Institute of the Ministry of Aerospace. The main drafters of this standard are Hu Lusheng, Liu Dequan, Cheng Zhenshi, and Wang Muqin. From the date of implementation of this standard, the original ministry standard JB1982-77 "Cut-type end-butt straight-through joint body" will be invalid. Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.