1、Process PipingASME Code for Pressure Piping, B31AN AMERICAN NATIONAL STANDARDASME B31.3-2006(Revision of ASME B31.3-2004)Copyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ASME B31.3-2006(Revision of
2、 ASME B31.3-2004)Process PipingASME Code for Pressure Piping, B31AN AMERICAN NATIONAL STANDARDThree Park Avenue New York, NY 10016Copyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-Date of Issuance:
3、May 31, 2007The next edition of this Code is scheduled for publication in 2008. This Code will become effective6 months after the Date of Issuance. There will be no addenda issued to this edition.ASME issues written replies to inquiries concerning interpretations of technical aspects of thisStandard
4、. The interpretations will be included with this edition.ASME is the registered trademark of The American Society of Mechanical Engineers.This code or standard was developed under procedures accredited as meeting the criteria for American NationalStandards. The Standards Committee that approved the
5、code or standard was balanced to assure that individuals fromcompetent and concerned interests have had an opportunity to participate. The proposed code or standard was madeavailable for public review and comment that provides an opportunity for additional public input from industry, academia,regula
6、tory agencies, and the public-at-large.ASME does not “approve,” “rate,” or “endorse” any item, construction, proprietary device, or activity.ASME does not take any position with respect to the validity of any patent rights asserted in connection with anyitems mentioned in this document, and does not
7、 undertake to insure anyone utilizing a standard against liability forinfringement of any applicable letters patent, nor assumes any such liability. Users of a code or standard are expresslyadvised that determination of the validity of any such patent rights, and the risk of infringement of such rig
8、hts, isentirely their own responsibility.Participation by federal agency representative(s) or person(s) affiliated with industry is not to be interpreted asgovernment or industry endorsement of this code or standard.ASME accepts responsibility for only those interpretations of this document issued i
9、n accordance with the establishedASME procedures and policies, which precludes the issuance of interpretations by individuals.No part of this document may be reproduced in any form,in an electronic retrieval system or otherwise,without the prior written permission of the publisher.The American Socie
10、ty of Mechanical EngineersThree Park Avenue, New York, NY 10016-5990Copyright 2007 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.Copyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted without lice
11、nse from IHS-,-,-CONTENTSForeword xiCommittee Personnel xiiiIntroduction . xviSummary of Changes xviiiChapter I Scope and Definitions . 1300 General Statements 1Chapter II Design . 9Part 1 Conditions and Criteria . 9301 Design Conditions . 9302 Design Criteria 11Part 2 Pressure Design of Piping Comp
12、onents 17303 General 17304 Pressure Design of Components 18Part 3 Fluid Service Requirements for Piping Components . 27305 Pipe . 27306 Fittings, Bends, Miters, Laps, and Branch Connections 28307 Valves and Specialty Components 29308 Flanges, Blanks, Flange Facings, and Gaskets . 30309 Bolting 30Par
13、t 4 Fluid Service Requirements for Piping Joints . 31310 General 31311 Welded Joints 31312 Flanged Joints . 32313 Expanded Joints . 32314 Threaded Joints 32315 Tubing Joints 33316 Caulked Joints . 33317 Soldered and Brazed Joints . 33318 Special Joints 33Part 5 Flexibility and Support 33319 Piping F
14、lexibility 33321 Piping Support 39Part 6 Systems . 40322 Specific Piping Systems 40Chapter III Materials . 42323 General Requirements 42325 Materials Miscellaneous . 51Chapter IV Standards for Piping Components 52326 Dimensions and Ratings of Components 52Chapter V Fabrication, Assembly, and Erectio
15、n 55327 General 55328 Welding . 55330 Preheating . 61331 Heat Treatment 62332 Bending and Forming 66333 Brazing and Soldering . 67335 Assembly and Erection . 67iiiCopyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted without licens
16、e from IHS-,-,-Chapter VI Inspection, Examination, and Testing . 69340 Inspection . 69341 Examination . 69342 Examination Personnel . 75343 Examination Procedures 75344 Types of Examination 75345 Testing 76346 Records . 79Chapter VII Nonmetallic Piping and Piping Lined With Nonmetals 80A300 General
17、Statements 80Part 1 Conditions and Criteria . 80A301 Design Conditions . 80A302 Design Criteria 80Part 2 Pressure Design of Piping Components 82A303 General 82A304 Pressure Design of Piping Components . 82Part 3 Fluid Service Requirements for Piping Components . 83A305 Pipe . 83A306 Fittings, Bends,
18、 Miters, Laps, and Branch Connections 83A307 Nonmetallic Valves and Specialty Components . 84A308 Flanges, Blanks, Flange Facings, and Gaskets . 84A309 Bolting 84Part 4 Fluid Service Requirements for Piping Joints . 84A310 General 84A311 Bonded Joints in Plastics . 85A312 Flanged Joints . 85A313 Exp
19、anded Joints . 85A314 Threaded Joints 85A315 Tubing Joints 85A316 Caulked Joints . 85A318 Special Joints 85Part 5 Flexibility and Support 86A319 Flexibility of Nonmetallic Piping . 86A321 Piping Support 87Part 6 Systems . 88A322 Specific Piping Systems 88Part 7 Materials 88A323 General Requirements
20、88A325 Materials Miscellaneous . 89Part 8 Standards for Piping Components . 89A326 Dimensions and Ratings of Components 89Part 9 Fabrication, Assembly, and Erection . 90A327 General 90A328 Bonding of Plastics 90A329 Fabrication of Piping Lined With Nonmetals 96A332 Bending and Forming 96A334 Joining
21、 Nonplastic Piping 96A335 Assembly and Erection . 96Part 10 Inspection, Examination, and Testing 97A340 Inspection . 97A341 Examination . 97A342 Examination Personnel . 98A343 Examination Procedures 98ivCopyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproductio
22、n or networking permitted without license from IHS-,-,-A344 Types of Examination 98A345 Testing 98A346 Records . 99Chapter VIII Piping for Category M Fluid Service 100M300 General Statements 100Part 1 Conditions and Criteria . 100M301 Design Conditions . 100M302 Design Criteria 100Part 2 Pressure De
23、sign of Metallic Piping Components 101M303 General 101M304 Pressure Design of Metallic Components . 101Part 3 Fluid Service Requirements for Metallic Piping Components . 101M305 Pipe . 101M306 Metallic Fittings, Bends, Miters, Laps, and Branch Connections 101M307 Metallic Valves and Specialty Compon
24、ents . 101M308 Flanges, Blanks, Flange Facings, and Gaskets . 102M309 Bolting 102Part 4 Fluid Service Requirements for Metallic Piping Joints . 102M310 Metallic Piping, General . 102M311 Welded Joints in Metallic Piping . 102M312 Flanged Joints in Metallic Piping . 102M313 Expanded Joints in Metalli
25、c Piping . 102M314 Threaded Joints in Metallic Piping 102M315 Tubing Joints in Metallic Piping 102M316 Caulked Joints . 102M317 Soldered and Brazed Joints . 102M318 Special Joints in Metallic Piping 102Part 5 Flexibility and Support of Metallic Piping 103M319 Flexibility of Metallic Piping . 103M321
26、 Piping Support 103Part 6 Systems . 103M322 Specific Piping Systems 103Part 7 Metallic Materials 103M323 General Requirements 103M325 Materials Miscellaneous . 103Part 8 Standards for Piping Components . 103M326 Dimensions and Ratings of Components 103Part 9 Fabrication, Assembly, and Erection of Me
27、tallic Piping 104M327 General 104M328 Welding of Metals . 104M330 Preheating of Metals . 104M331 Heat Treatment of Metals 104M332 Bending and Forming of Metals 104M335 Assembly and Erection of Metallic Piping 104Part 10 Inspection, Examination, Testing, and Records of Metallic Piping 104M340 Inspect
28、ion . 104M341 Examination . 104M342 Examination Personnel . 105M343 Examination Procedures 105M344 Types of Examination 105M345 Testing 105M346 Records . 105vCopyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted without license fro
29、m IHS-,-,-Parts 11 Through 20, Corresponding to Chapter VII . 105MA300 General Statements 105Part 11 Conditions and Criteria . 105MA301 Design Conditions . 105MA302 Design Criteria 105Part 12 Pressure Design of Nonmetallic Piping Components 105MA303 General 105MA304 Pressure Design of Nonmetallic Co
30、mponents . 105Part 13 Fluid Service Requirements for Nonmetallic Piping Components . 105MA305 Pipe . 105MA306 Nonmetallic Fittings, Bends, Miters, Laps, and Branch Connections . 105MA307 Nonmetallic Valves and Specialty Components . 105MA308 Flanges, Blanks, Flange Facings, and Gaskets . 106MA309 Bo
31、lting 106Part 14 Fluid Service Requirements for Nonmetallic Piping Joints 106MA310 General 106MA311 Bonded Joints 106MA312 Flanged Joints . 106MA313 Expanded Joints . 106MA314 Threaded Joints 106MA315 Tubing Joints in Nonmetallic Piping 106MA316 Caulked Joints . 106MA318 Special Joints 106Part 15 Fl
32、exibility and Support of Nonmetallic Piping 106MA319 Piping Flexibility . 106MA321 Piping Support 106Part 16 Nonmetallic and Nonmetallic Lined Systems 106MA322 Specific Piping Systems 106Part 17 Nonmetallic Materials . 106MA323 General Requirements 106Part 18 Standards for Nonmetallic and Nonmetalli
33、c Lined Piping Components 106MA326 Dimensions and Ratings of Components 106Part 19 Fabrication, Assembly, and Erection of Nonmetallic and Nonmetallic LinedPiping . 106MA327 General 106MA328 Bonding of Plastics 107MA329 Fabrication of Piping Lined With Nonmetals 107MA332 Bending and Forming 107MA334
34、Joining Nonplastic Piping 107MA335 Assembly and Erection . 107Part 20 Inspection, Examination, Testing, and Records of Nonmetallic andNonmetallic Lined Piping . 107MA340 Inspection . 107MA341 Examination . 107MA342 Examination Personnel . 107MA343 Examination Procedures 107MA344 Types of Examination
35、 107MA345 Testing 107MA346 Records . 107Chapter IX High Pressure Piping 108K300 General Statements 108Part 1 Conditions and Criteria . 108K301 Design Conditions . 108K302 Design Criteria 109viCopyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networ
36、king permitted without license from IHS-,-,-Part 2 Pressure Design of Piping Components 111K303 General 111K304 Pressure Design of High Pressure Components . 111Part 3 Fluid Service Requirements for Piping Components . 114K305 Pipe . 114K306 Fittings, Bends, and Branch Connections . 115K307 Valves a
37、nd Specialty Components 115K308 Flanges, Blanks, Flange Facings, and Gaskets . 115K309 Bolting 116Part 4 Fluid Service Requirements for Piping Joints . 116K310 General 116K311 Welded Joints 116K312 Flanged Joints . 116K313 Expanded Joints . 116K314 Threaded Joints 116K315 Tubing Joints 116K316 Caulk
38、ed Joints . 116K317 Soldered and Brazed Joints . 116K318 Special Joints 117Part 5 Flexibility and Support 117K319 Flexibility 117K321 Piping Support 117Part 6 Systems . 117K322 Specific Piping Systems 117Part 7 Materials 118K323 General Requirements 118K325 Miscellaneous Materials 121Part 8 Standard
39、s for Piping Components . 121K326 Dimensions and Ratings of Components 121Part 9 Fabrication, Assembly, and Erection . 121K327 General 121K328 Welding . 121K330 Preheating . 124K331 Heat Treatment 125K332 Bending and Forming 126K333 Brazing and Soldering . 126K335 Assembly and Erection . 126Part 10
40、Inspection, Examination, and Testing 127K340 Inspection . 127K341 Examination . 127K342 Examination Personnel . 127K343 Examination Procedures 127K344 Types of Examination 127K345 Testing 129K346 Records . 129Figures300.1.1 Diagram Illustrating Application of B31.3 Piping at Equipment 3302.3.5 Stres
41、s Range Factor, f 16304.2.1 Nomenclature for Pipe Bends 19304.2.3 Nomenclature for Miter Bends . 19304.3.3 Branch Connection Nomenclature 21304.3.4 Extruded Outlet Header Nomenclature . 23304.5.3 Blanks . 27319.4.4A Moments in Bends . 37319.4.4B Moments in Branch Connections . 37viiCopyright ASME In
42、ternational Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-323.2.2A Minimum Temperatures Without Impact Testing for Carbon SteelMaterials 45323.2.2B Reduction in Minimum Design Metal Temperature WithoutImpact Testing 47328.3
43、.2 Typical Backing Rings and Consumable Inserts . 57328.4.2 Typical Butt Weld End Preparation . 57328.4.3 Trimming and Permitted Misalignment . 57328.4.4 Preparation for Branch Connections 58328.5.2A Fillet Weld Size 59328.5.2B Typical Details for Double-Welded Slip-On and Socket Welding FlangeAttac
44、hment Welds . 59328.5.2C Minimum Welding Dimensions for Socket Welding Components OtherThan Flanges 60328.5.4A Typical Welded Branch Connections 60328.5.4B Typical Welded Branch Connections 60328.5.4C Typical Welded Branch Connections 60328.5.4D Acceptable Details for Branch Attachment Welds . 60328
45、.5.4E Acceptable Details for Branch Attachment Suitable for 100%Radiography 61328.5.5 Typical Fabricated Laps 61335.3.3 Typical Threaded Joints Using Straight Threads . 68341.3.2 Typical Weld Imperfections 73A328.5 Typical Plastic Piping Joints 95K323.3.3 Example of an Acceptable Impact Test Specime
46、n 121K328.4.3 Pipe Bored for Alignment: Trimming and Permitted Misalignment 124K328.5.4 Some Acceptable Welded Branch Connections Suitable for 100%Radiography 125Tables300.4 Status of Appendices in B31.3 8302.3.3C Increased Casting Quality Factors, Ec. 14302.3.3D Acceptance Levels for Castings . 143
47、02.3.4 Longitudinal Weld Joint Quality Factor, Ej15304.1.1 Values of Coefficient Y for t D6 18304.4.1 BPV Code References for Closures 25308.2.1 Permissible Sizes/Rating Classes for Slip-On Flanges Used as LappedFlanges 30314.2.1 Minimum Thickness of Male Threaded Components 32323.2.2 Requirements f
48、or Low Temperature Toughness Tests for Metals . 43323.2.2A Tabular Values for Minimum Temperatures Without Impact Testing forCarbon Steel Materials . 46323.3.1 Impact Testing Requirements for Metals 48323.3.4 Charpy Impact Test Temperature Reduction 49323.3.5 Minimum Required Charpy V-Notch Impact V
49、alues . 50326.1 Component Standards . 53330.1.1 Preheat Temperatures 63331.1.1 Requirements for Heat Treatment . 64341.3.2 Acceptance Criteria for Welds and Examination Methods for EvaluatingWeld Imperfections 70A323.2.2 Requirements for Low Temperature Toughness Tests for Nonmetals . 89A323.4.2C Recommended Temperature Limits for Reinforced Thermosetting
