GB/T 3746.1-1983 Compression sleeve type cross pipe joint GB/T3746.1-1983 standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Compression-type cross-pipe fittings
Ualon cross-Assembly
UDC 621.643.4
GB 3746.1—83
This standard specifies compression-type cross-pipe fittings, which are suitable for piping systems of oil, gas and general corrosive media. GR3746.283
Marking example:
Nominal pressure level, pipe outer diameter D, 14mm ferrule type four-way pipe joint: pipe joint J14
GB 3746,183
National Bureau of Standards 1983-06-17 Issued
GH 3759—#3
GB 3764-83
1984-04-01 Implementation
Nominal pressure
(bar)
Pipe outer diameter
GB 8746.1—88
Note that the quantity is calculated value, and the specific gravity is 7.85kg/dm3. The technical conditions shall be in accordance with the provisions of GB
3765—83.
Additional Notes:
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 and Promotion Institute of the Ministry of Machinery Industry. mm
(kg/100 pieces)bzxz.net
This standard was drafted by the Standardization 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 78th Institute of the Ministry of Aerospace. The main drafters of this standard are Hu Lusheng, Liu Dequan, Cheng Zhensheng, and Wang Muqin. From the date of implementation of this standard, the original ministry standard JB1949-77 "Cut-type Cross-way Pipe Connection" shall be used as the standard.
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