NB/T 47021-2012
A-type socket-weld flange (English Version)
- Standard No.
- NB/T 47021-2012
- Language
- Chinese, Available in English version
- Release Date
- 2012
- Published By
- Professional Standard - Energy
- Latest
- NB/T 47021-2012
- Replace
- JB/T 4701-2000
- Scope
- This standard specifies the structural type and series dimensions of Type A flat welding flanges for steel pressure vessels. This standard is applicable to type A flat welding flanges of steel pressure vessels with a nominal pressure of 0.25MPa and an operating temperature above -20°C to 300°C.
NB/T 47021-2012 Referenced Document
- NB/T 47020 Type and specification for pressure vessel flanges
- NB/T 47024 Nonmetallic gaskets
- NB/T 47027 Stud blots & nuts for body flange
NB/T 47021-2012 history
- 2012 NB/T 47021-2012 A-type socket-weld flange
- 2000 JB/T 4701-2000 A-type socket-weld flange
NB/T 47021-2012 A-type socket-weld flange has been changed from JB/T 4701-2000 A-type socket-weld flange.
