1、Process PipingASME Code for Pressure Piping, B31AN INTERNATIONAL PIPING CODEASME B31.3-2014(Revision of ASME B31.3-2012)ASME B31.3-2014(Revision of ASME B31.3-2012)Process PipingASME Code for Pressure Piping, B31AN INTERNATIONAL PIPING CODETwo Park Avenue New York, NY 10016 USADate of Issuance: Febr
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11、roduced in any form,in an electronic retrieval system or otherwise,without the prior written permission of the publisher.The American Society of Mechanical EngineersTwo Park Avenue, New York, NY 10016-5990Copyright 2015 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.
12、A.CONTENTSForeword xiiCommittee Roster . xivIntroduction . xviiiSummary of Changes xxChapter I Scope and Definitions . 1300 General Statements 1Chapter II Design . 10Part 1 Conditions and Criteria . 10301 Design Conditions . 10302 Design Criteria 12Part 2 Pressure Design of Piping Components 20303 G
13、eneral 20304 Pressure Design of Components 20Part 3 Fluid Service Requirements for Piping Components . 30305 Pipe . 30306 Fittings, Bends, Miters, Laps, and Branch Connections 30307 Valves and Specialty Components 32308 Flanges, Blanks, Flange Facings, and Gaskets . 32309 Bolting 33Part 4 Fluid Serv
14、ice Requirements for Piping Joints . 33310 General 33311 Welded Joints 33312 Flanged Joints . 34313 Expanded Joints . 34314 Threaded Joints 34315 Tubing Joints 35316 Caulked Joints . 35317 Soldered and Brazed Joints . 35318 Special Joints 35Part 5 Flexibility and Support 36319 Piping Flexibility 363
15、20 Analysis of Sustained Loads . 41321 Piping Support 42Part 6 Systems . 44322 Specific Piping Systems 44Chapter III Materials . 46323 General Requirements 46325 Materials Miscellaneous . 55Chapter IV Standards for Piping Components 56326 Dimensions and Ratings of Components 56Chapter V Fabrication,
16、 Assembly, and Erection 60327 General 60328 Welding and Brazing 60330 Preheating . 67331 Heat Treatment 69332 Bending and Forming 74iii333 Brazing and Soldering . 74335 Assembly and Erection . 75Chapter VI Inspection, Examination, and Testing . 77340 Inspection . 77341 Examination . 77342 Examinatio
17、n Personnel . 84343 Examination Procedures 84344 Types of Examination 84345 Testing 86346 Records . 89Chapter VII Nonmetallic Piping and Piping Lined With Nonmetals 90A300 General Statements 90Part 1 Conditions and Criteria . 90A301 Design Conditions . 90A302 Design Criteria 90Part 2 Pressure Design
18、 of Piping Components 92A303 General 92A304 Pressure Design of Piping Components . 92Part 3 Fluid Service Requirements for Piping Components . 93A305 Pipe . 93A306 Fittings, Bends, Miters, Laps, and Branch Connections 93A307 Valves and Specialty Components 94A308 Flanges, Blanks, Flange Facings, and
19、 Gaskets . 94A309 Bolting 94Part 4 Fluid Service Requirements for Piping Joints . 94A310 General 94A311 Bonded Joints in Plastics . 94A312 Flanged Joints . 95A313 Expanded Joints . 95A314 Threaded Joints 95A315 Tubing Joints 95A316 Caulked Joints . 95A318 Special Joints 95Part 5 Flexibility and Supp
20、ort 96A319 Flexibility of Nonmetallic Piping . 96A321 Piping Support 97Part 6 Systems . 97A322 Specific Piping Systems 97Part 7 Materials 98A323 General Requirements 98A325 Materials Miscellaneous . 100Part 8 Standards for Piping Components . 100A326 Dimensions and Ratings of Components 100Part 9 Fa
21、brication, Assembly, and Erection . 103A327 General 103A328 Bonding of Plastics 103A329 Fabrication of Piping Lined With Nonmetals 105A332 Bending and Forming 107A334 Joining Nonplastic Piping 107A335 Assembly and Erection . 107Part 10 Inspection, Examination, and Testing 108A340 Inspection . 108A34
22、1 Examination . 108A342 Examination Personnel . 108ivA343 Examination Procedures 108A344 Types of Examination 109A345 Testing 109A346 Records . 110Chapter VIII Piping for Category M Fluid Service 111M300 General Statements 111Part 1 Conditions and Criteria . 111M301 Design Conditions . 111M302 Desig
23、n Criteria 111Part 2 Pressure Design of Metallic Piping Components 111M303 General 111M304 Pressure Design of Metallic Components . 111Part 3 Fluid Service Requirements for Metallic Piping Components . 111M305 Pipe . 111M306 Metallic Fittings, Bends, Miters, Laps, and Branch Connections 111M307 Meta
24、llic Valves and Specialty Components . 112M308 Flanges, Blanks, Flange Facings, and Gaskets . 112M309 Bolting 113Part 4 Fluid Service Requirements for Metallic Piping Joints . 113M310 Metallic Piping, General . 113M311 Welded Joints in Metallic Piping . 113M312 Flanged Joints in Metallic Piping . 11
25、3M313 Expanded Joints in Metallic Piping . 113M314 Threaded Joints in Metallic Piping 113M315 Tubing Joints in Metallic Piping 113M316 Caulked Joints . 113M317 Soldered and Brazed Joints . 113M318 Special Joints in Metallic Piping 113Part 5 Flexibility and Support of Metallic Piping 113M319 Flexibil
26、ity of Metallic Piping . 113M320 Analysis of Sustained Loads . 113M321 Piping Support 113Part 6 Systems . 113M322 Specific Piping Systems 113Part 7 Metallic Materials 114M323 General Requirements 114M325 Materials Miscellaneous . 114Part 8 Standards for Piping Components . 114M326 Dimensions and Rat
27、ings of Components 114Part 9 Fabrication, Assembly, and Erection of Metallic Piping 114M327 General 114M328 Welding of Metals . 114M330 Preheating of Metals . 115M331 Heat Treatment of Metals 115M332 Bending and Forming of Metals 115M335 Assembly and Erection of Metallic Piping 115Part 10 Inspection
28、, Examination, Testing, and Records of Metallic Piping 115M340 Inspection . 115M341 Examination . 115M342 Examination Personnel . 115M343 Examination Procedures 115M344 Types of Examination 115M345 Testing 115M346 Records . 115vParts 11 Through 20, Corresponding to Chapter VII . 115MA300 General Sta
29、tements 116Part 11 Conditions and Criteria . 116MA301 Design Conditions . 116MA302 Design Criteria 116Part 12 Pressure Design of Nonmetallic Piping Components 116MA303 General 116MA304 Pressure Design of Nonmetallic Components . 116Part 13 Fluid Service Requirements for Nonmetallic Piping Components
30、 . 116MA305 Pipe . 116MA306 Nonmetallic Fittings, Bends, Miters, Laps, and Branch Connections . 116MA307 Valves and Specialty Components 116MA308 Flanges, Blanks, Flange Facings, and Gaskets . 116MA309 Bolting 116Part 14 Fluid Service Requirements for Nonmetallic Piping Joints 116MA310 General 116MA
31、311 Bonded Joints 116MA312 Flanged Joints . 116MA313 Expanded Joints . 116MA314 Threaded Joints 117MA315 Tubing Joints in Nonmetallic Piping 117MA316 Caulked Joints . 117MA318 Special Joints 117Part 15 Flexibility and Support of Nonmetallic Piping 117MA319 Piping Flexibility 117MA321 Piping Support
32、117Part 16 Nonmetallic and Nonmetallic Lined Systems 117MA322 Specific Piping Systems 117Part 17 Nonmetallic Materials . 117MA323 General Requirements 117Part 18 Standards for Nonmetallic and Nonmetallic Lined Piping Components 117MA326 Dimensions and Ratings of Components 117Part 19 Fabrication, As
33、sembly, and Erection of Nonmetallic and Nonmetallic LinedPiping . 117MA327 General 117MA328 Bonding of Plastics 117MA329 Fabrication of Piping Lined With Nonmetals 117MA332 Bending and Forming 117MA334 Joining Nonplastic Piping 117MA335 Assembly and Erection . 117Part 20 Inspection, Examination, Tes
34、ting, and Records of Nonmetallic andNonmetallic Lined Piping . 117MA340 Inspection . 117MA341 Examination . 117MA342 Examination Personnel . 118MA343 Examination Procedures 118MA344 Types of Examination 118MA345 Testing 118MA346 Records . 118Chapter IX High Pressure Piping 119K300 General Statements
35、 119Part 1 Conditions and Criteria . 119K301 Design Conditions . 119K302 Design Criteria 120viPart 2 Pressure Design of Piping Components 122K303 General 122K304 Pressure Design of High Pressure Components . 122Part 3 Fluid Service Requirements for Piping Components . 126K305 Pipe . 126K306 Fittings
36、, Bends, and Branch Connections . 126K307 Valves and Specialty Components 127K308 Flanges, Blanks, Flange Facings, and Gaskets . 127K309 Bolting 127Part 4 Fluid Service Requirements for Piping Joints . 127K310 General 127K311 Welded Joints 127K312 Flanged Joints . 127K313 Expanded Joints . 127K314 T
37、hreaded Joints 127K315 Tubing Joints 128K316 Caulked Joints . 128K317 Soldered and Brazed Joints . 128K318 Special Joints 128Part 5 Flexibility and Support 128K319 Flexibility 128K321 Piping Support 129Part 6 Systems . 129K322 Specific Piping Systems 129Part 7 Materials 129K323 General Requirements
38、129K325 Miscellaneous Materials 134Part 8 Standards for Piping Components . 134K326 Requirements for Components . 134Part 9 Fabrication, Assembly, and Erection . 134K327 General 134K328 Welding . 134K330 Preheating . 136K331 Heat Treatment 137K332 Bending and Forming 138K333 Brazing and Soldering .
39、139K335 Assembly and Erection . 139Part 10 Inspection, Examination, and Testing 139K340 Inspection . 139K341 Examination . 139K342 Examination Personnel . 141K343 Examination Procedures 141K344 Types of Examination 141K345 Leak Testing . 142K346 Records . 143Chapter X High Purity Piping. 144U300 Gen
40、eral Statements 144Part 1 Conditions and Criteria . 144U301 Design Conditions . 144Part 2 Pressure Design of Piping Components 144Part 3 Fluid Service Requirements for Piping Components . 144U306 Fittings, Bends, Miters, Laps, and Branch Connections 144U307 Valves and Specialty Components 144U308 Fl
41、anges, Blanks, Flange Facings, and Gaskets . 144viiPart 4 Fluid Service Requirements for Piping Joints . 145U311 Welded Joints 145U314 Threaded Joints 145U315 Tubing Joints 145Part 5 Flexibility and Support 145U319 Piping Flexibility 145Part 6 Systems . 145Part 7 Metallic Materials 145Part 8 Standar
42、ds for Piping Components . 146Part 9 Fabrication, Assembly, and Erection . 146U327 General 146U328 Welding . 146U330 Preheating . 146U331 Heat Treatment 146U332 Bending and Forming 146U333 Brazing and Soldering . 146U335 Assembly and Erection . 146Part 10 Inspection, Examination, and Testing 148U340
43、 Inspection . 148U341 Examination . 148U342 Examination Personnel . 148U343 Examination Procedures 149U344 Types of Examination 149U345 Testing 149U346 Records . 149Part 11 High Purity Piping in Category M Fluid Service . 150UM300 General Statements 150UM307 Metallic Valves and Specialty Components
44、. 150UM322 Specific Piping Systems 150UM328 Welding of Materials . 150UM335 Assembly and Erection of Metallic Piping 150UM341 Examination . 150UM345 Testing 150Figures300.1.1 Diagram Illustrating Application of B31.3 Piping at Equipment 3302.3.5 Stress Range Factor, f 17304.2.1 Nomenclature for Pipe
45、 Bends 21304.2.3 Nomenclature for Miter Bends . 21304.3.3 Branch Connection Nomenclature 24304.3.4 Extruded Outlet Header Nomenclature . 26304.5.3 Blanks . 29319.4.4A Moments in Bends . 40319.4.4B Moments in Branch Connections . 40323.2.2A Minimum Temperatures Without Impact Testing for Carbon Steel
46、Materials 49323.2.2B Reduction in Lowest Exemption Temperature Without Impact Testing . 51328.3.2 Typical Backing Rings and Consumable Inserts . 62328.4.2 Typical Butt Weld End Preparation . 62328.4.3 Trimming and Permitted Misalignment . 62328.4.4 Preparation for Branch Connections 63328.5.2A Fille
47、t Weld Size 64328.5.2B Typical Details for Double-Welded Slip-On and Socket Welding FlangeAttachment Welds . 64328.5.2C Minimum Welding Dimensions for Socket Welding Components OtherThan Flanges 64viii328.5.4A Typical Welded Branch Connections 65328.5.4B Typical Welded Branch Connections 65328.5.4C
48、Typical Welded Branch Connections 65328.5.4D Acceptable Details for Branch Attachment Welds . 65328.5.4E Acceptable Details for Branch Attachment Suitable for 100%Radiography 65328.5.4F Acceptable Details for Integrally Reinforced Branch Connections 66328.5.5 Typical Fabricated Laps 68335.3.3 Typica
49、l Threaded Joints Using Straight Threads . 76341.3.2 Typical Weld Imperfections 82A328.5 Typical Plastic Piping Joints 106K323.3.3 Example of an Acceptable Impact Test Specimen 132K328.4.3 Pipe Bored for Alignment: Trimming and Permitted Misalignment 137K328.5.4 Some Acceptable Welded Branch Connections Suitable for 100%Radiography 137U304.5.3 Blanks . 145U335.7.1 Face Seal Joints 147U335.8A Hygienic Clamp Joint Assembly 147U335.8B Hygienic Clamp Types . 148U335.8C Hygienic Ferrules 148Tables300.4 Status of Appendices in B31.3 9302.3.3C Increased Casting Quality Factors, Ec. 15
