Search

Code Detail
Code No. KGS AC114 2020 Classification Specified equipments
Code Title Code for Facilities, Technology and Inspection for Manufacturing of Small LP Gas Storage Tanks
Revised Date 2020.03.18 Price 115 USD,  102 Euro

Detail Information

Scope

This Code applies to the facilities, technology and inspection for manufacturing of small storage tanks (hereinafter referred to as “tanks”) in conformity to the Enforcement Regulation of the Safety Control and Business of Liquefied Petroleum Gas Act, Article 2, Clause 1, No. 4 among storage tanks of specially-designated facilities in conformity to the High-pressure Gas Safety Control Act (hereinafter to be referred to as “the Act”), Article 3,Clause 5. <Revised on November 23, 2016>

Contents

1. General 1
1.1 Scope 1
1.2 Validity of Code 1
1.3 Reference Codes and Standards 1
1.3.1 Inspection standard for new technology products 1
1.3.2 Registration standard for manufacturing of foreign tanks 2
1.4 Definitions 3
1.5 Application of Codes and Standards (currently not used)
1.6 Interim Measures
1.6.1 Interim measures for overfilling prevention devices
1.7 Restriction on Use of Parts 3
3
3
3

2. Manufacturing Installation Standard 3
2.1 Manufacturing Facilities 3
2.2 Inspection Facilities 4

3. Manufacturing Technology Standard 4
3.1 Design 4
3.2 Materials
3.2.7 Allowable tensile stresses of materials
3.2.8 Allowable bending stresses of materials
3.2.9 Allowable shearing stresses of materials
3.2.10 Allowable compressive stresses of materials
3.2.11 Young's modulus of materials 4
10
10
11
11
12
3.3 Thickness 13
3.3.1 Minimum thickness of parts other than tube 13
3.3.2 Minimum thickness of tube 16
3.4 Construction and Dimensions 17
3.4.1 Flange specification 17
3.4.2 Permissible out-of-roundness of shells 17
3.4.3 Shapes of conical shell (currently not used) 18
3.4.4 Shapes of heads 18
3.4.5 Openings in tanks
3.4.6 Shapes of tanks, etc. 20
21
3.5 Fabrication 21
3.5.1 Cutting, forming and finishing of materials 21
3.5.2 Seal welding 22
3.5.3 Bending of straight tubes 22
3.5.4 Reinforcement of openings 22
3.6 Welding 27
3.6.1 Classification of welded joints 27
3.6.2 Restriction to welding types 28
3.6.3 Welded joint efficiency 29
3.6.4 Strength of welds 30
3.6.5 Butt welds 30
3.6.6 Double full fillet welds 31
3.6.7 Welding of heads and shells 32
3.6.8 Welding of shells and flat plates 32
3.6.9 Welding of nozzles, reinforcing materials, etc. 33
3.6.10 Welding of jackets 33
3.6.11 Finish of welds 33
3.6.12 Welding conditions 34
3.7 Heat Treatment 36
3.7.1 Heat treatment after forming 36
3.7.2 Stress relieving of welds 37
3.8 Performance (currently not used) 40
3.9 Painting (currently not used) 40
3.10 Attachment of Safety Devices
3.10.1 Safety valve
3.10.2 Overfill prevention device 40
40
40
3.11 Attachment of Accessories
3.11.1 Male coupling
3.11.2 Protectors
3.11.3 Valves
3.11.4 Level gauge 41
41
42
43
43
3.12 Coloring and Marking 44
3.12.1 External coloring (currently not used) 44
3.12.2 Marking of gas type (currently not used) 44
3.12.3 Product marking 44
3.12.4 Acceptance marking 44

4. Inspection Standard 45
4.1 Kinds of Inspection 45
4.1.1 Manufacturing installation inspection 45
4.1.2 Product inspection 45
4.2 Object Audit for Process Inspection 46
4.2.1 Application for audit 46
4.2.2 Audit method 46
4.2.3 Adjudication committee 47
4.3 Inspection Items 47
4.3.1 Manufacturing installation inspection 47
4.3.2 Product inspection 47
4.4 Inspection Methods 50
4.4.1 Installation inspection 50
4.4.2 Product inspection 51
4.5 Other Standards 71
4.5.1 Inspection of imported products (currently not used) 71
4.5.2 Partial omission of inspection 71
4.5.3 Disposal of rejected products 71

Appendix A Maximum Allowable Tensile Stress Values for Steels 73

Appendix A-2 Maximum Allowable Tensile Stress Values for Nonferrous Metals

94
Appendix B 105

Appendix C Heat Treatment Temperature Depending on Kind of Base Metal 116

Appendix D Correction Constant Depending on Heat Treatment Temperature Reduction 116

Appendix E Classification of Base Metals 117

Appendix F Classification of Shielded Arc Electrodes 121

Appendix G Classification of Welding Wires 122

Appendix H 123

Appendix I General Standard for Operation of Quality Control System for Tank Manufacturing Plants
153
Appendix J Ductile Iron Castings and Malleable Iron Castings 158