This standard replaces JB 79-82. This standard specifies the types and dimensions of convex butt welded steel pipe flanges with nominal pressures PN of 0.25, 0.6, 1.0, 1.6, 2.5, and 4.0MPa. This standard is applicable to convex face welding steel pipe flanges with nominal pressure PN0.25~4.0MPa. JB/T 82.1-1994 Convex butt welding steel pipe flange JB/T82.1-1994 Standard download and decompression password: www.bzxz.net

Machinery Industry Standard of the People's Republic of China
Convex butt welding steel pipe flange
Subject content and scope of application
JB/T 82. 1
Replaces JB82-- -59 |
This standard is applicable to convex face welding steel pipe flanges with nominal pressure PNO.25~~4.0MPa. 2 Referenced standards
JB/T74 Pipeline Cover Technical Conditions
3 The type and size of the flange should comply with the requirements of Figure 1 and Tables 1 to 6, A
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The technical requirements of the flange are in accordance with JB/T74. 4
The nominal pressure of the flange and the maximum allowable working pressure at different temperatures are in accordance with the provisions of Appendix B of JB/T74. 5
6 Marking example
Raised face welding steel pipe flange with nominal diameter 300mm, nominal pressure 1.0MPa, size series 2: Method 300-10JB/T 82.1--94| |tt||Raised butt welded steel pipe flange with nominal diameter 300mm, nominal pressure 1.0MPa, size series 1: Flange 300-10 (series 1) JB/T82.1-94 Machinery Industry of the People's Republic of China Ministry approved 360
1995-10-01 implementation
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