BS EN 12953-4:2018
$167.15
Shell boilers – Workmanship and construction of pressure parts of the boiler
| Published By | Publication Date | Number of Pages |
| BSI | 2018 | 38 |
This European Standard specifies requirements for the workmanship and construction of shell boilers as defined in EN 12953-1. NOTE 1 For other components such as water tube walls, see the EN 12952 series. NOTE 2 For economizers and superheaters, see EN 12953-4 or EN 12952-5.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 8 | 1 Scope 2 Normative references |
| 9 | 3 Terms and definitions 4 Symbols 5 General requirements 5.1 General |
| 10 | 5.2 Traceability 5.2.1 General 5.2.2 Material 5.2.2.1 Pressure bearing parts 5.2.2.2 Non pressure bearing parts 5.2.2.3 Welding consumables 5.2.3 Welding 5.2.4 Inspection (NDT) |
| 11 | 5.3 Cylindrical shells |
| 13 | 5.4 Tell-tale holes 5.5 End plates and tube plates 5.6 Plain tubes and stay tubes |
| 14 | 5.7 Manhole frames and openings 5.7.1 Jointing flanges 5.7.2 Openings for access and inspection |
| 15 | 5.8 Connections for accessories 5.8.1 Accessories 5.8.2 Set-in flange and set-on flange 5.8.3 Flanges on nozzles |
| 16 | 5.8.4 Bolting 5.9 Cylindrical furnaces |
| 18 | 5.10 Water-cooled reversal chamber 5.11 Stays 5.11.1 Bar stays |
| 19 | 5.11.2 Girder stays 5.11.3 Tube stays 5.11.4 Non-perpendicular bar stays or tube stays 5.12 Design of welded joints 5.12.1 Weld deposition 5.12.2 Weld crosses 5.12.2.1 Pressure parts 5.12.2.2 Non-pressure parts |
| 20 | 5.12.3 Types of welds 5.12.3.1 Full penetration welds 5.12.3.2 Internal fillet welds (back welds) 5.12.3.3 Other welds |
| 21 | 5.12.4 Weld preparations 5.12.5 Welding plates of unequal thickness 5.13 Openings in or adjacent to welds 5.14 Fabrication 5.14.1 General 5.14.2 Welding 5.14.2.1 General 5.14.2.2 Welding procedure specification (WPS) 5.14.2.3 Procedure qualification records (PQR) 5.14.2.4 Welding consumables |
| 22 | 5.14.2.5 Welders and welding operators 5.14.2.6 Temporary attachments 5.14.2.7 Stray arcing 5.14.3 Cutting, fitting and alignment |
| 23 | 5.14.4 Longitudinal seams 5.14.5 Circumferential seams 5.14.6 Surface condition before welding 5.14.7 Middle line alignments |
| 24 | 5.14.8 Surface alignment tolerances 5.14.8.1 Circumferential joints 5.14.8.2 Longitudinal joints |
| 25 | 5.14.9 Miscellaneous welding requirements 5.14.9.1 Double-sided welds 5.14.9.2 Restart 5.14.9.3 Single-sided welds 5.14.9.4 End plates welded prior to hot or cold forming |
| 26 | 5.14.9.5 Permanent attachments 5.14.10 Repair of weld defects 5.15 Post-weld heat treatment (PWHT) and other heat treatments 5.15.1 General 5.15.2 Material thickness |
| 29 | Annex A (normative)Typical welds for shell boilers |
| 34 | Annex B (informative)Gaskets for closing systems of access and inspection openings |
| 35 | Annex C (informative)Significant technical changes between this European Standard and the previous edition |
| 36 | Annex ZA (informative)Relationship between this European Standard and the Essential Requirements of EU Directive 2014/68/EU aimed to be covered |
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BS EN 12953-4:2018 – TC:2020 Edition
Tracked Changes. Shell boilers – Workmanship and construction of pressure parts of the boiler Published…
