BS EN 15776:2022

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Unfired pressure vessels. Requirements for the design and fabrication of pressure vessels and pressure vessel parts constructed from cast iron with an elongation after fracture equal or less than 15%

Published By	Publication Date	Number of Pages
BSI	2022	48

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Categories: 23.020.30 - Pressure vessels, BSI

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Description

This document specifies requirements for the design, material, manufacturing and testing of cast iron pressure vessels and pressure vessel parts made from materials for which details are specified from the following material standards for specific grades which meet the criterion of an elongation after fracture less than or equal to 15 %: – EN 1561:2011, Founding – Grey cast irons; – EN 1563:2018, Founding – Spheroidal graphite cast irons; – EN 13835:2012, Founding – Austenitic cast irons. The application of this document is limited to pressure equipment and pressure parts containing a fluid of group 2 (non-hazardous fluid) according to the European legislation for pressure equipment.

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PDF Pages	PDF Title
2	undefined
10	1 Scope 2 Normative references
11	3 Terms, definitions, units and symbols 3.1 Terms and definitions
13	3.2 Symbols
15	3.3 Inter relation of thicknesses definitions (EN 134456:2021) 4 Materials, limitations and service conditions 4.1 Materials and limitations on temperature, maximum allowable pressure and energy content
17	4.2 Cyclic loading
18	5 Design requirements 5.1 Design principle
19	5.2 Conceptual design and construction drawings 5.3 Static loading 5.3.1 General 5.3.2 Design by formula (DBF)
20	5.3.3 Design by analysis (DBA) 5.3.4 Design by experiment (DBE) 5.4 Temperature reduction factor 5.5 Wall thickness correction factor
21	5.6 Design for external pressure 5.7 Testing conditions 5.8 Design methods 5.8.1 General 5.8.2 Static loading 5.8.2.1 General 5.8.2.2 Design by formula (DBF) 5.8.2.3 Design by analysis (DBA)
22	5.8.2.4 Design by experiment (DBE)
23	5.8.2.5 RM3 Determination and general test requirements 5.8.2.6 Determination of the minimum hydraulic burst pressure and maximum allowable pressure for static loading
24	5.8.3 Dynamic loading 5.8.3.1 General 5.8.3.2 Simplified fatigue assessment (SFA)
26	5.8.3.3 Detailed fatigue assessment (DFA)
29	5.8.3.4 Assessment rule for total fatigue damage 5.8.3.5 Experimental fatigue assessment (EFA) 5.9 Construction details 5.9.1 Reinforcement of openings in cylinders, flat ends, dished ends, etc. 5.9.2 Fillet radius
30	5.9.3 Dished cover 5.10 Technical documentation 5.10.1 General 5.10.2 Information to be contained in the technical documentation 5.10.2.1 General description of the pressure vessel 5.10.2.2 Descriptions and explanations necessary for an understanding of the drawings and diagrams and the operation of the pressure vessel 5.10.2.3 Results of design calculations and examinations carried out
32	5.10.3 Test reports 5.10.3.1 General 5.10.3.2 Technical/manufacturing schedule 5.10.4 Design review
33	6 Founding, material and casting testing 6.1 Founding 6.1.1 General 6.1.2 Welding 6.2 Material testing 6.2.1 General 6.2.2 Frequency and number of tests
34	6.2.3 Inspection documents 6.3 Casting testing 6.3.1 General 6.3.2 Surface imperfections 6.3.3 Cracks, laps, cold shot and non-fused chaplets 6.3.4 Ultrasonic testing and/or sectioning
35	6.3.5 Liquid penetrant testing 6.3.6 Surface roughness 6.3.7 Minimum wall thickness 6.3.8 Wall thickness tolerances 6.3.9 Other dimensions 6.3.10 Qualification of testing personnel 7 Final assessment 7.1 General 7.2 Hydraulic test pressure
36	8 Pressure vessels assembled of a combination of parts in different materials 9 Marking and documentation 9.1 Marking of castings 9.2 Name plate for the complete pressure vessel 9.3 Documentation
37	Annex A (informative)Technical data for design calculations
40	Annex B (informative)Recommendations for in-service validation and inspection B.1 Purpose B.2 Tests during operation
41	Annex C (informative)Examples of fatigue design curves
44	Annex ZA (informative)Relationship between this European standard and the essential requirements of Directive 2014/68 EU aimed to be covered

Additional information

Status	Definitive
Pages	48
Publication Date	2022-08-31
ISBN	978 0 539 02378 7
Standard Number	BS EN 15776:2022
Title	Unfired pressure vessels. Requirements for the design and fabrication of pressure vessels and pressure vessel parts constructed from cast iron with an elongation after fracture equal or less than 15%
Identical National Standard Of	EN 15776
Replaces	BS EN 15776:2011+A1:2015
Descriptors	Testing, Pressure equipment, Unfired pressure vessels, Design, Production, Spheroidal-graphite cast-iron, Elongation at fracture, Structural design, Safety measures, Inspection, Cast-iron, Pressure vessels
Publisher	BSI
Committee	PVE/1
ICS Codes	23.020.30 - Pressure vessels

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