中华人民共和国住房和城乡建设部公告

Announcement　of　Ministry　of　Housing　and　Urban-Rural　Development　of　the　People　s　Republic　of　China

Foreword

1　General

2　Terms　and　Symbols

• 2.1　Terms

• 2.2　Symbols

3　Design　Condition　and　Design　Criterion

• 3.1　Design　Condition

• 3.2　Design　Criterion

4　Materials

• 4.1　General　Requirement

• 4.2　Operating　Temperature　of　Metallic　Materials

• 4.3　Allowable　Stress　of　Metallic　Material

• 4.4　Application　Requirement　of　Metallic　Materials

5　Selection　of　Piping　Components

• 5.1　General　Requirement

• 5.2　Pipes

• 5.3　Bends　and　Elbows

• 5.4　Branch　Connection

• 5.5　Flanges

• 5.6　Gaskets

• 5.7　Fasteners

• 5.8　Reducers

• 5.9　Caps

• 5.10　Valves

• 5.11　Special　Components

• 5.12　Nonmetallic　Linings　for　Piping　Components

6　Strength　of　Piping　Components

• 6.1　General　Requirement

• 6.2　Strength　of　Pipe

• 6.3　Strength　of　Bends　and　Elbows

• 6.4　Reinforcement　of　Branch　Connections

• 6.5　Reducers

• 6.6　Flange　and　Fitting

• 6.7　Plugs　and　Flow-restricting　Orifices

7　Pipe　Diameter　Choosing　and　Hydraulic　Calculation

• 7.1　General　Requirement

• 7.2　Pipe　Diameter　Selection

• 7.3　Pressure　Loss　of　Single-phase　Fluid　Piping

• 7.4　Pressure　Loss　of　Two-phase　Fluid　Piping

• 7.5　Aperture　Calculation　of　Orifice

• 7.6　Selection　and　Calculation　of　Safety　Valve

8　Piping　Layout

• 8.1　General　Requirement

• 8.2　Steam　and　Water　Piping

• 8.3　Piping　for　Inflammable　or　Combustible　Medium

• 8.4　Piping　for　Toxic　Gas　or　Liquid

• 8.5　Piping　for　Corrosive　Medium

• 8.6　Other　Gas　Piping

• 8.7　Piping　in　Plant　Area

9　Stress　Analysis　and　Calculation　of　Piping

• 9.1　General　Requirement

• 9.2　Scope　and　Method　of　Stress　Analysis　and　Calculation

• 9.3　Basic　Requirement　of　Stress　Analysis　and　Calculation

• 9.4　Check　of　Piping　Stress

• 9.5　Compensation　Calculation　and　Cold　Spring　of　the　Piping　System

• 9.6　Acting　Force　of　Piping　on　Equipment　or　Terminals

10　Supports　and　Hangers

• 10.1　General　Requirement

• 10.2　Spacing　of　Supports　and　Hangers

• 10.3　Loads　on　Supports　and　Hangers

• 10.4　Type　Selection　of　Supports　and　Hangers

• 10.5　Material　Selection　of　Supports　and　Hangers

• 10.6　Strength　Calculation　and　Structure　Design　of　Supports　and　Hangers

11　Piping　Welding

• 11.1　Welding　Material

• 11.2　Design　of　Welded　Joint

12　Inspection　and　Test　of　Piping

• 12.1　General　Requirement

• 12.2　Inspection

• 12.3　Testing

13　Insulation，Noise　Isolation，Anticorrosion，and　Painting

• 13.1　Insulation

• 13.2　Noise　Isolation　and　Damping

• 13.3　Anticorrosion　and　Painting

14　Overpressure　Protection　of　Piping　System

• 14.1　Overpressure　Protection

• 14.2　Overpressure　Protection　Device

Appendix　A　Performance　of　Commonly　Used　Materials

Appendix　B　Non-destructive　Testing　of　Piping

Appendix　C　Hydraulic　Calculation

Appendix　D　Flexiblity　and　Stress　Intensification　Factors

• D.1　Flexibility　Factors

• D.2　Stress　Intensification　Factor

Appendix　E　Calculation　of　Wind　Load　and　Seismic　Load

• E.1　Wind　Load

• E.2　Seismic　Load

Appendix　F　Welded　Structure　and　Welding　Material

Explanation　of　Wording　in　This　Code

List　of　Quoted　Standards