NB/T 47020-2012
Type and specification for pressure vessel flanges (English Version)
- Standard No.
- NB/T 47020-2012
- Language
- Chinese, Available in English version
- Release Date
- 2012
- Published By
- Professional Standard - Energy
- Latest
- NB/T 47020-2012
- Replace
- JB/T 4700-2000
- Scope
- This standard specifies the classification and specifications of pressure vessel flanges, the materials of flanges, studs, and nuts and their matching with gaskets, the maximum allowable working pressure at various temperatures, technical requirements, and markings. This standard is applicable to carbon steel and low alloy steel pressure vessel flanges with nominal pressures of 0.25MPa to 6.40MPa and operating temperatures of -70℃ to 450℃.
NB/T 47020-2012 Referenced Document
- GB 150 Pressure Vessels (Bound Edition)*， 2024-04-20 Update
- GB 24511 Stainless steel plate,sheet and strip for pressure equipments
- GB 713 Steel plates for boilers and pressure vessels*， 2014-06-24 Update
- GB/T 16938 Fasteners.Gerneral requirements for bolts,screws,studs and nuts
- GB/T 1801 Gemetrical Product Specifications(GPS).Limits and fits.Selection of tolerance zones and fits
- GB/T 1804 General tolerances Tolerances for linear and angular dimensions without individual tolerance indications
- GB/T 196 General purpose metric screw threads--Basic dimensions
- GB/T 197 General purpose metric screw threads—Tolerances*， 2018-03-15 Update
- GB/T 3077 Alloy structure steels*， 2015-12-10 Update
- GB/T 3098.2 Mechanical properties of fasteners.Nuts*， 2015-12-10 Update
- GB/T 3274 Hot-rolled plates、sheets and strips of carbon structural steels and high strength low alloy structural steels*， 2017-02-28 Update
- GB/T 3985 Comoresssed asbentos fibre jointing
- GB/T 539 Oil-resisting compressed asbestos fibre jointing
- GB/T 5779.2 Fasteners-Surface discontinuities-Nuts
- GB/T 699 Quality carbon structure steels*， 2015-12-10 Update
- GB/T 700 Carbon structural steels
- NB/T 47021 A-type socket-weld flange
- NB/T 47022 B-type socket-weld flange
- NB/T 47023 Welding neck flange
- 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 47020-2012 history
- 2012 NB/T 47020-2012 Type and specification for pressure vessel flanges
- 2000 JB/T 4700-2000 Type and specification for pressure vessel flanges
NB/T 47020-2012 Type and specification for pressure vessel flanges has been changed from JB/T 4700-2000 Type and specification for pressure vessel flanges.
