NB/T 47023-2012
Welding neck flange (English Version)
- Standard No.
- NB/T 47023-2012
- Language
- Chinese, Available in English version
- Release Date
- 2012
- Published By
- Professional Standard - Energy
- Latest
- NB/T 47023-2012
- Replace
- JB/T 4703-2000
- Scope
- This standard specifies the structural type and series dimensions of long-neck butt welding flanges for steel pressure vessels. This standard is applicable to long-neck butt welding flanges of steel pressure vessels with nominal pressures of 0.6MPa to 6.4MPa and operating temperatures of -70°C to 450°C. This standard applies to corrosion allowance ≤3mm.
NB/T 47023-2012 Referenced Document
- NB/T 47020 Type and specification for pressure vessel flanges
- NB/T 47024 Nonmetallic gaskets
- NB/T 47025 Spiral wound gaskets
- NB/T 47026 Double-jacketed gaskets
- NB/T 47027 Stud blots & nuts for body flange
NB/T 47023-2012 history
- 2012 NB/T 47023-2012 Welding neck flange
- 2000 JB/T 4703-2000 Welding neck flange
NB/T 47023-2012 Welding neck flange has been changed from JB/T 4703-2000 Welding neck flange.
