Pipe Flanges and Flanged Fittings

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INTENTIONALLY LEFT BLANK, ,Copyright ASME International. Provided by IHS under license with ASME, No reproduction or networking permitted without license from IHS Not for Resale. ASME B16 5 2013, Revision of ASME B16 5 2009 , Pipe Flanges and. Flanged Fittings, NPS 1 2 Through NPS 24, Metric Inch Standard. , A N AM E RI C A N N AT I O N A L S TAN DA R D, Two Park Avenue New York NY 10016 USA.
Copyright ASME International,Provided by IHS under license with ASME. No reproduction or networking permitted without license from IHS Not for Resale. Date of Issuance April 29 2013, The next edition of this Standard is scheduled for publication in 2015 . ASME issues written replies to inquiries concerning interpretations of technical aspects of this. Standard Interpretations are published on the ASME Web site under the Committee Pages at. http cstools asme org as they are issued , Errata to codes and standards may be posted on the ASME Web site under the Committee Pages to. provide corrections to incorrectly published items or to correct typographical errors in codes and. standards Such errata shall be used on the date posted . The Committee Pages can be found at http cstools asme org There is an option available to. automatically receive an e mail notification when errata are posted to a particular code or standard . This option can be found on the appropriate Committee Page after selecting Errata in the Publication. Information section , , 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 National. Standards The Standards Committee that approved the code or standard was balanced to assure that individuals from. competent and concerned interests have had an opportunity to participate The proposed code or standard was made. available for public review and comment that provides an opportunity for additional public input from industry academia . regulatory 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 any. items mentioned in this document and does not undertake to insure anyone utilizing a standard against liability for. infringement of any applicable letters patent nor assumes any such liability Users of a code or standard are expressly. advised that determination of the validity of any such patent rights and the risk of infringement of such rights is. entirely their own responsibility , Participation by federal agency representative s or person s affiliated with industry is not to be interpreted as. government or industry endorsement of this code or standard . ASME accepts responsibility for only those interpretations of this document issued in accordance with the established. ASME 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 Society of Mechanical Engineers, Two Park Avenue New York NY 10016 5990. Copyright 2013 by, THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS. All rights reserved, Printed in U S A ,Copyright ASME International.
Provided by IHS under license with ASME, No reproduction or networking permitted without license from IHS Not for Resale. CONTENTS, Foreword vi, Committee Roster ix, Correspondence With the B16 Committee x. Summary of Changes xi, 1 Scope 1, 2 Pressure Temperature Ratings 2. 3 Component Size 3, 4 Marking 3, 5 Materials 7, 6 Dimensions 9. 7 Tolerances 13, , 8 Pressure Testing 14, Figures.
1 Bevel for Outside Thickness 15, 2 Bevel for Inside Thickness 15. 3 Bevel for Combined Thickness 15, 4 Straight Hub Welding Flanges 15. 5 Method of Designating Outlets of Reducing Fittings in Specifications 16. 6 End Flange Facings and Their Relationship to Flange Thickness and. Center to End and End to End Dimensions 17, 7 Bevel for Wall Thicknesses t From 5 mm to 22 mm Inclusive 19. 8 Bevel for Wall Thicknesses t Greater Than 22 mm 19. 9 Inside Contour for Use With Rectangular Backing Ring 20. 10 Inside Contour for Use With Taper Backing Ring 20. 11 Thread Length for Connection Tapping 21, 12 Socket Welding for Connections 21. 13 Bosses for Connections 21, 14 Butt Welding for Connections 21.
15 Method of Designating Location of Auxiliary Connections When. Specified 22, Tables, 1A List of Material Specifications 4. 1B List of Bolting Specifications Applicable ASTM Specifications 8. 1C Flange Bolting Dimensional Recommendations 12, 2 1 1 Pressure Temperature Ratings for Group 1 1 Materials 23. 2 1 2 Pressure Temperature Ratings for Group 1 2 Materials 24. 2 1 3 Pressure Temperature Ratings for Group 1 3 Materials 25. 2 1 4 Pressure Temperature Ratings for Group 1 4 Materials 26. 2 1 5 Pressure Temperature Ratings for Group 1 5 Materials 27. iii,Copyright ASME International,Provided by IHS under license with ASME. No reproduction or networking permitted without license from IHS Not for Resale. 2 1 7 Pressure Temperature Ratings for Group 1 7 Materials 28. 2 1 9 Pressure Temperature Ratings for Group 1 9 Materials 29. 2 1 10 Pressure Temperature Ratings for Group 1 10 Materials 30. 2 1 11 Pressure Temperature Ratings for Group 1 11 Materials 31. 2 1 13 Pressure Temperature Ratings for Group 1 13 Materials 32. 2 1 14 Pressure Temperature Ratings for Group 1 14 Materials 33. 2 1 15 Pressure Temperature Ratings for Group 1 15 Materials 34. 2 1 17 Pressure Temperature Ratings for Group 1 17 Materials 35. 2 1 18 Pressure Temperature Ratings for Group 1 18 Materials 36. 2 2 1 Pressure Temperature Ratings for Group 2 1 Materials 37. 2 2 2 Pressure Temperature Ratings for Group 2 2 Materials 38. 2 2 3 Pressure Temperature Ratings for Group 2 3 Materials 39. 2 2 4 Pressure Temperature Ratings for Group 2 4 Materials 40. 2 2 5 Pressure Temperature Ratings for Group 2 5 Materials 41. 2 2 6 Pressure Temperature Ratings for Group 2 6 Materials 42. 2 2 7 Pressure Temperature Ratings for Group 2 7 Materials 43. 2 2 8 Pressure Temperature Ratings for Group 2 8 Materials 44. 2 2 9 Pressure Temperature Ratings for Group 2 9 Materials 45. 2 2 10 Pressure Temperature Ratings for Group 2 10 Materials 46. 2 2 11 Pressure Temperature Ratings for Group 2 11 Materials 47. 2 2 12 Pressure Temperature Ratings for Group 2 12 Materials 48. 2 3 1 Pressure Temperature Ratings for Group 3 1 Materials 49. 2 3 2 Pressure Temperature Ratings for Group 3 2 Materials 49. 2 3 3 Pressure Temperature Ratings for Group 3 3 Materials 50. , 2 3 4 Pressure Temperature Ratings for Group 3 4 Materials 50. 2 3 5 Pressure Temperature Ratings for Group 3 5 Materials 51. 2 3 6 Pressure Temperature Ratings for Group 3 6 Materials 52. 2 3 7 Pressure Temperature Ratings for Group 3 7 Materials 53. 2 3 8 Pressure Temperature Ratings for Group 3 8 Materials 54. 2 3 9 Pressure Temperature Ratings for Group 3 9 Materials 55. 2 3 10 Pressure Temperature Ratings for Group 3 10 Materials 56. 2 3 11 Pressure Temperature Ratings for Group 3 11 Materials 56. 2 3 12 Pressure Temperature Ratings for Group 3 12 Materials 57. 2 3 13 Pressure Temperature Ratings for Group 3 13 Materials 58. 2 3 14 Pressure Temperature Ratings for Group 3 14 Materials 59. 2 3 15 Pressure Temperature Ratings for Group 3 15 Materials 60. 2 3 16 Pressure Temperature Ratings for Group 3 16 Materials 61. 2 3 17 Pressure Temperature Ratings for Group 3 17 Materials 62. 2 3 19 Pressure Temperature Ratings for Group 3 19 Materials 62. 3 Permissible Imperfections in Flange Facing Finish for Raised Face and. Large Male and Female Flanges 63, 4 Dimensions of Facings Other Than Ring Joints All Pressure Rating.
Classes 64, 5 Dimensions of Ring Joint Facings All Pressure Rating Classes 66. 6 Reducing Threaded and Slip On Flanges for Classes 150 Through. 2500 70, 7 Templates for Drilling Class 150 Pipe Flanges and Flanged Fittings 71. 8 Dimensions of Class 150 Flanges 72, 9 Dimensions of Class 150 Flanged Fittings 75. 10 Templates for Drilling Class 300 Pipe Flanges and Flanged Fittings 80. 11 Dimensions of Class 300 Flanges 81, 12 Dimensions of Class 300 Flanged Fittings 84. 13 Templates for Drilling Class 400 Pipe Flanges 88. 14 Dimensions of Class 400 Flanges 89, 15 Templates for Drilling Class 600 Pipe Flanges and Flanged Fittings 91.
16 Dimensions of Class 600 Flanges 92, iv,Copyright ASME International. Provided by IHS under license with ASME, No reproduction or networking permitted without license from IHS Not for Resale. 17 Templates for Drilling Class 900 Pipe Flanges and Flanged Fittings 94. 18 Dimensions of Class 900 Flanges 95, 19 Templates for Drilling Class 1500 Pipe Flanges 97. 20 Dimensions of Class 1500 Flanges 98, 21 Templates for Drilling Class 2500 Pipe Flanges 100. 22 Dimensions of Class 2500 Flanges 101, Mandatory Appendices.
I Threading of Pipe for American National Standard Threaded Flanges 103. II Pressure Temperature Ratings and Dimensional Data for Classes 150 300 . 400 600 900 1500 and 2500 Flanges and Classes 150 and 300. Flanged Fittings in U S Customary Units 105, III References 193. Nonmandatory Appendices, A Method Used for Establishing Pressure Temperature Ratings 196. B Limiting Dimensions of Gaskets Other Than Ring Joint Gaskets 200. C Method for Calculating Bolt Lengths 202, D Quality System Program 204. E Dimensions of Classes 400 600 900 1500 and 2500 Flanged Fittings in. U S Customary Units 205, , v,Copyright ASME International. Provided by IHS under license with ASME, No reproduction or networking permitted without license from IHS Not for Resale.
FOREWORD, In 1920 the American Engineering Standards Committee later the American Standards. Associations ASA organized Sectional Committee B16 to unify and further develop standards. for pipe flanges and fittings and later for valves and gaskets Cosponsors of the B16 Committee. were ASME the Heat ing and Piping Contractors Nat ional Associat ion now Mechanical. Contractors Association of America MCAA and the Manufacturers Standardization Society. of the Valves and Fittings Industry MSS Cosponsors were later designated as cosecretariat. organizations , The Committee soon recognized the need for standardization of steel pipe flanges In May . 1923 Subcommittee 3 was organized to develop such standards for pressures in the 250 psi to. 3 200 psi range and for elevated temperatures Active work began in October including steel. flanged fittings The first proposed standard was submitted to the Committee in April 1926 and. approved by letter ballot in December After favorable review by the three sponsor organizations . the Standard was approved as American Tentative Standard B16e in June 1927 . Experience in using the Standard showed the need for hub dimensions of companion flanges. and for other changes including rerating of 250 lb and 1 350 lb flanges and development of. flanged fittings with integral bases An investigation was made into the factors determining. stiffness of flanges and flange hubs The revised edition was approved as ASA B16E 1932 . A revision was initiated in 1936 stimulated by suggestions from Committee members and. industrial users The resulting 1939 edition contained standards for welding neck flanges com . pleted in March 1937 1 500 lb flanges in the 14 in through 24 in range 2 500 lb flanges and. flanged fittings in the 1 2 in through 12 in range and dimensions for a full line of ring joint. flanges developed by the American Petroleum Institute Pressure temperature ratings for alloy. steel flanges and fittings developed by Subcommittee 4 were included for the first time . In August 1942 the War Production Board requested a review of measures to conserve vital. materials in piping components A special War Committee of B16 was appointed and operating. under War Standard Procedure developed revised pressure temperature ratings for all materials. and pressure classes The ratings were published as American War Standard B16e5 1943 In 1945 . under normal procedures Subcommittees 3 and 4 reviewed the 1939 standard and 1943 ratings. and recommended adoption of the wartime ratings Their report was approved as Supplement. No 1 to B16e 1939 and published as ASA B16e6 1949 In addition to ratings the supplement. updated material specification references and added a table of metal wall thickness for welding . end valves , Subcommittee 3 then began a revision of the entire standard Technically the 1949 Supplement. was absorbed new materials were recognized a general rating method was developed and. added as an appendix and welding end preparations were expanded Editorially a new style of. presentation was worked out including tables rearranged for easier use Approval by Sectional. Committee cosponsors and ASA resulted in the publication of ASA B16 5 1953 designation. changed from B16e , Work soon began on further revisions Class B rati. Date of Issuance April 29 2013 The next edition of this Standard is scheduled for publication in 2015 ASME issues written replies to inquiries concerning interpretations of technical aspects of this

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