GB/T 3747.2-1983 Compression welded joint body

GB/T 3747.2-1983 Compression-type welding joint body GB/T3747.2-1983 standard download decompression password: www.bzxz.net

Marking example:
National Standard of the People's Republic of China
Compression-type welded joint body
Weld male connector-Body
Nominal pressure [grade, pipe outer diameter D, compression-type welded joint body of 14mm Joint body 14GB3747.2—83
National Bureau of Standards 1983-06-17 Issued
UDC 621.643.4
GB3747.2—83bZxz.net
1984-04 -01 Implementation
M10×1
M12×1.25
M30×2
M33×2
M38×2
M42×2
M45×2
M48×2
M52×2
Maa×2
Ma6×2
M39×2
GB 3747.2—83
Note: The weight is the calculated value, and the specific gravity is 7.B5kg/dm. The technical conditions shall comply with the provisions of GB3765-83. Additional remarks:
Nominal limit
+ 0. 3047
This standard is 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. 13
（/100 items）
This standard was drafted by the Standardization Research Institute of the Ministry of Machinery Industry, and was drafted by Shenyang Heavy Machinery Factory, Chongqing Heavy Automobile Research Institute, Dalian Combined Machine Tool Research Institute, Zhejiang Haiyan County Pipe Fittings Factory, Shanghai Mechanical and Electrical Bureau Science and Technology Information Institute, and the Seventh and Eighth Institutes 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 JB1971-77 "Card sleeve type welding joint body" will be invalid.
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