This standard specifies the requirements on the manufacturing, inspection and acceptance as well as marking, painting and packing of boiler barrel.
This standard is applicable to the stationary hot water boiler and the stationary steam boiler with the rated steam pressure no larger than 13.7MPa and the rated steam temperature no larger than 540℃, in addition, it is also usable to the subcritical pressure steam boiler.
Contents
1 Subject Content and Application Scope
2 Normative References
3 Technical Requirements
3.1 Materials and Welding
3.2 Splicing
3.3 Surface Quality
3.4 Connecting Pieces
3.5 Piercing and Welding parts on Welded Seam
3.6 Heat Treatment
4 Manufacturing and Mounting Tolerances
4.1 Deviation for Edges of Butt Joints
4.2 Barrel Body and End Socket
4.3 Pipe Orifice and Manhole
4.4 Pipe Head
4.5 Pipe Head of Centralized Downcomer
4.6 Flange
5 Inspection and Acceptance
5.1 Welding Quality Inspection
5.2 Hydraulic Test
5.3 Internal Cleaning
5.4 Quality Certificate
6 Marking, Painting and Packing
6.1 Marking
6.2 Painting and Packing
Additional Explanations:
