1、Pipe Flanges and Flanged Fittings NPS Through NPS 24 Metric/Inch Standard AN AMERICAN NATIONAL STANDARD ASME B16.5-2017 (Revision of ASME B16.5-2013)ASME B16.5-2017 (Revision of ASME B16.5-2013) Pipe Flanges and Flanged Fittings x NPS 1 2 Through NPS 24 Metric/Inch Standard AN AMERICAN NATIONAL STAN
2、DARD xDate of Issuance: November 20, 2017 The next edition of this Standard is scheduled for publication in 2020. ASME issues writt en replies to inquiries concerning interpre tations of technical aspects of this Standard. Periodically certain actions of the ASME B16 Committ ee may be published as C
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11、ny form, in an electronic retrieval sys t em or otherwise, without the prior writ ten permission of the publisher . The American Society of Mechanical Engineers Two Park Avenue, New York, NY 10016-5990 Copyright 2017 by THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS All rights reserved Printed in U.S.
12、A.CONTENTS Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii Committee Roster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13、. . . . . . . . . x Correspondence With the B16 Committee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi Summary of Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14、. . . xiii List of Changes in Record Number Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv 1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2 Press
15、uretemperature Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 3 Component Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 4 Marking . . . . . . . . . . . . . . . . . .
16、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 5 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 6 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . .
17、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 7 Tolerances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 8 Pressure Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18、. . . . . . . . . . . . . . . . . . . . . . 15 Mandatory Appendices I Threading of Pipe for American National Standard Threaded Flanges . . . . . . . . . . . . . . . . . . . . 108 II Pressuretemperature Ratings and Dimensional Data for Classes 150, 300, 400, 600, 900, 1500, and 2500 flanges and clas
19、ses 150 and 300 flanged fittings in u.s. customary units . . . . . . . . . . . . 110 III References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195 Nonmandatory Appendices A Method Used for Establishing Pressuretemperatu
20、re Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . 198 B Limiting Dimensions of Gasketsother than ring joint gaskets . . . . . . . . . . . . . . . . . . . . . . . . . . 203 C Method for Calculating Bolt Lengths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
21、 . . . . . 205 D Quality System Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207 E Dimensions of Classes 400, 600, 900, 1500, and 2500 Flanged Fittings in U.S. Customary Units . 208 Figures 1 Bevel for Outside Thickness . . . . . .
22、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 2 Bevel for Inside Thickness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 3 Bevel for Combined Thickness . . . . . . . . . . . . . . . . . . . . . .
23、 . . . . . . . . . . . . . . . . . . . . . . . . . . 16 4 Straight Hub Welding Flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 5 Method of Designating Outlets of Reducing Fittings in Specifications (flanged fittings) . . . . . . . . 17 6 E
24、nd Flange Facings and Their Relationship to Flange Thickness and center-to-end and end-to-end dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 7 Bevel for Wall Thicknesses t from 5 mm to 22 mm inclusive . . . . . .
25、. . . . . . . . . . . . . . . . . . . . 20 8 Bevel for Wall Thicknesses t greater than 22 mm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 9 Inside Contour for Use With Rectangular Backing Ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 iii10 Inside Con
26、tour for Use With Taper Backing Ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 11 Thread Length for Connection Tapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 12 Socket Welding for Connections . . . . . . . . . . . . . . .
27、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 13 Bosses for Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 14 Butt Welding for Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
28、 . . . . . . . . . . . . . . . . 22 15 Method of Designating Location of Auxiliary Connections When Specified (flanged fittings) . . . . 23 II-6 End Flange Facings and Their Relationship to Flange Thickness and Center- To-End and end-to-end dimensions . . . . . . . . . . . . . . . . . . . . . . . .
29、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111 II-7 Bevel for Wall Thicknesses t from 0.19 in. to 0.88 in. inclusive . . . . . . . . . . . . . . . . . . . . . . . . . 113 II-8 Bevel for Wall Thicknesses t greater than 0.88 in. . . . . . . . . . . . . . . . . . . . . . .
30、. . . . . . . . . . . . 113 II-9 Inside Contour for Use With Rectangular Backing Ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114 II-10 Inside Contour for Use With Taper Backing Ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114 II-11 Thread Length f
31、or Connection Tapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115 II-12 Socket Welding for Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115 II-13 Bosses for Connections . . . . . . . . . . . . .
32、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115 II-14 Butt Welding for Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115 C-1 Specified Machine Bolt Length . . . . . . . . . . . . . . . . . . . . . . .
33、 . . . . . . . . . . . . . . . . . . . . . . . . . 206 C-2 Specified Stud Bolt Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206 Tables 1A list of material specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
34、. . . . . . . . . . . . . . . . 5 1B List of Bolting Specifications: Applicable Astm Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . 9 1C flange bolting dimensional recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 2-1.1 Pressuretempera
35、ture Ratings for Group 1.1 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 2-1.2 Pressuretemperature Ratings for Group 1.2 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 2-1.3 Pressuretemperature Ratings for Group 1.3 Materials . . . . . . . . .
36、 . . . . . . . . . . . . . . . . . . . . . . 26 2-1.4 Pressuretemperature Ratings for Group 1.4 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 2-1.5 Pressuretemperature Ratings for Group 1.5 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 2-1.7
37、Pressuretemperature Ratings for Group 1.7 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 2-1.9 Pressuretemperature Ratings for Group 1.9 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 2-1.10 Pressuretemperature Ratings for Group 1.10 Materials
38、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 2-1.11 Pressuretemperature Ratings for Group 1.11 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 2-1.13 Pressuretemperature Ratings for Group 1.13 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . .
39、. . . 33 2-1.14 Pressuretemperature Ratings for Group 1.14 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 2-1.15 Pressuretemperature Ratings for Group 1.15 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 2-1.17 Pressuretemperature Ratings for Group
40、1.17 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 2-1.18 pressuretemperature ratings for group 1.18 materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 2-2.1 Pressuretemperature Ratings for Group 2.1 Materials . . . . . . . . . . . . . . . . . . . . .
41、 . . . . . . . . . . 38 2-2.2 Pressuretemperature Ratings for Group 2.2 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 2-2.3 Pressuretemperature Ratings for Group 2.3 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 2-2.4 Pressuretemperature Rati
42、ngs for Group 2.4 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 2-2.5 Pressuretemperature Ratings for Group 2.5 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 2-2.6 Pressuretemperature Ratings for Group 2.6 Materials . . . . . . . . . . . . .
43、. . . . . . . . . . . . . . . . . . 43 2-2.7 Pressuretemperature Ratings for Group 2.7 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 2-2.8 pressuretemperature ratings for group 2.8 materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 iv2-2.9 Pressur
44、etemperature Ratings for Group 2.9 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 2-2.10 Pressuretemperature Ratings for Group 2.10 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 2-2.11 Pressuretemperature Ratings for Group 2.11 Materials . . . .
45、 . . . . . . . . . . . . . . . . . . . . . . . . . . 48 2-2.12 Pressuretemperature Ratings for Group 2.12 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 2-3.1 Pressuretemperature Ratings for Group 3.1 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
46、0 2-3.2 Pressuretemperature Ratings for Group 3.2 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 2-3.3 Pressuretemperature Ratings for Group 3.3 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 2-3.4 Pressuretemperature Ratings for Group 3.4 Mate
47、rials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 2-3.5 Pressuretemperature Ratings for Group 3.5 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 2-3.6 Pressuretemperature Ratings for Group 3.6 Materials . . . . . . . . . . . . . . . . . . . . . . . .
48、. . . . . . . 54 2-3.7 Pressuretemperature Ratings for Group 3.7 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 2-3.8 Pressuretemperature Ratings for Group 3.8 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 2-3.9 Pressuretemperature Ratings for
49、 Group 3.9 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 2-3.10 Pressuretemperature Ratings for Group 3.10 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 2-3.11 Pressuretemperature Ratings for Group 3.11 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 2-3.12 Pressuretemperature Ratings for Group 3.12 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 2-3.13 Pressuretemperature Ratings for Group 3.13 Materials . . . . . . . . . . . . . . . . . .
