GB/T 3747.1-1983 Compression-type welding pipe joints GB/T3747.1-1983 standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Compression-type welded pipe joint
Weld male connector-AssemblyUDC621.643.4
GB 3747.1—83bZxz.net
This standard specifies compression-type welded pipe joints, which are suitable for pipeline systems of oil, gas and general corrosive media. S
GB3747.2—83
Marking example:
Nominal pressure level, ferrule type welding pipe joint with pipe outer diameter D of 14mm: Pipe joint J14GB 3747.1—83
National Bureau of Standards 1983-06-17 Issued
GH375983
GB 3764—83
Implementation 1984-04-01
Nominal pressure pipe outer diameter
GB 3747.183
Note: The weight is a calculated value, and the specific gravity is 7.85kg/dm*. The technical conditions are in accordance with the provisions of GB3765—83. Additional remarks:
Wrench size
This standard was proposed by the Ministry of Machinery Industry of the People's Republic of China and is under the jurisdiction of the Standardization Research Institute of the Ministry of Machinery Industry. er.
(kg/100 pieces)
This standard was drafted by the Standardization Research Institute of the Ministry of Machinery Industry, and was drafted by Shenyang Heavy Machinery Plant, Chongqing Heavy Automobile Research Institute, Dalian Combined Machine Tool Research Institute, Zhejiang Haiyan County Pipe Fittings Factory, Shanghai No. 1 Mechanical and Electrical Bureau Science and Technology Information Institute, and the Seventh (.) Eighth Institute of the Ministry of Aviation. The main drafters of this standard are Hu Lusheng, Liu Dequan, Cheng Zhenshi, and Wang Daiqin. Starting from the month when this standard is implemented, the original ministry standard JB1950-77 "Cut-type welded pipe joints" will be invalidated.
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