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ASME B16.34 2020

ASME B16.34 2020

$98.04

ASME B16.34-2020 Valves Flanged, Threaded and Welding End

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ASME 2020
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ASME B16.34 Valves Flanged, Threaded and Welding End applies to new construction. It covers pressure-temperature ratings, dimensions, tolerances, materials, nondestructive examination requirements, testing, and marking for cast, forged, and fabricated flanged, threaded, and welding end and wafer or flangeless valves of steel, nickel-base alloys, and other alloys shown in Table 1. Wafer or flangeless valves, bolted or through-bolt types, that are installed between flanges or against a flange are treated as flanged-end valves. Alternative rules for NPS 2�½ and smaller valves are given in Mandatory Appendix V. This Standard is to be used in conjunction with equipment described in other volumes of the ASME B16 Series of Standards as well as with other ASME standards, such as the Boiler and Pressure Vessel Code and the B31 Piping Codes.

PDF Catalog

PDF Pages PDF Title
4 CONTENTS
8 FOREWORD
11 ASME B16 Committee Roster
12 CORRESPONDENCE WITH THE B16 COMMITTEE
14 INTRODUCTION
15 ASME B16.34-2020 SUMMARY OF CHANGES
16 LIST OF CHANGES IN RECORD NUMBER ORDER
18 1 GENERAL
1.1 Scope
1.2 Applicability
1.3 Selection of Valve Types and Material Service Conditions
1.4 Convention
1.5 Denotation
19 1.6 Cryogenic Service
1.7 References
1.8 Cases
2 PRESSURE–TEMPERATURE RATINGS
2.1 General
20 2.2 Rating Temperature
2.3 Temperature Effects
2.4 Guidance for the Use of Flanged Valve Ratings
2.5 Variances
21 2.6 Multiple Material Grades
2.7 Operating Conditions
3 NOMINAL PIPE SIZE
4 MARKING
4.1 General
4.2 Identification Markings
22 4.3 Identification Plate
4.4 Conformity
5 MATERIALS
5.1 General
23 5.2 Material Selection
5.3 Electrical Continuity
5.4 Flange Removal
6 DIMENSIONS
6.1 Body Dimensions
25 6.2 End Dimensions
6.3 Auxiliary Connections
26 6.4 Valve Joints
27 6.5 Stems
6.6 Installation Limitations
6.7 Wafer or Flangeless Valves
28 7 PRESSURE TESTING
7.1 Shell Test
7.2 Valve Closure Tests
29 7.3 Leakage Detection Devices
7.4 Surface Protection
8 REQUIREMENTS FOR SPECIAL CLASS VALVES
8.1 Scope
8.2 General
8.3 Required Examination
30 8.4 Defect Removal and Repair
31 Figures
Figure 1 Method of Designating Location of Auxiliary Connections When Specified
32 Figure 2 Butterfly Valve Body
33 Figure 3 Thread Length for Auxiliary Connections
Figure 4 Bosses for Auxiliary Connections
34 Figure 5 Socket Welding for Auxiliary Connections
Figure 6 Butt Welding for Auxiliary Connections
35 Figure 7 Gate Body (Pressure Seal Bonnet)
Figure 8 Y Pattern Globe Body (Pressure Seal Bonnet)
36 Figure 9 Angle Body (Pressure Seal Bonnet): Bonnet Same As Y Pattern Globe
Figure 10 Elbow Down (Pressure Seal Bonnet)
37 Figure 11 Gate Body (Flanged Bonnet)
Figure 12 Globe Body (Flanged Bonnet)
38 Figure 13 Butterfly Body
Figure 14 Plug Body
39 Figure 15 Conduit Gate Body (Pressure Seal Bonnet)
Figure 16 Dished Cover
Figure 17 Flat Cover
40 Figure 18 Top Entry Ball Valve
Figure 19 Swing Check
41 Tables
Table 1 Material Specification List: Applicable ASTM Specifications
48 Table 2-1.1 Ratings for Group 1.1 Materials
49 Table 2-1.1C Ratings for Group 1.1 Materials
50 Table 2-1.2 Ratings for Group 1.2 Materials
51 Table 2-1.2C Ratings for Group 1.2 Materials
52 Table 2-1.3 Ratings for Group 1.3 Materials
54 Table 2-1.3C Ratings for Group 1.3 Materials
55 Table 2-1.4 Ratings for Group 1.4 Materials
56 Table 2-1.4C Ratings for Group 1.4 Materials
57 Table 2-1.5 Ratings for Group 1.5 Materials
58 Table 2-1.5C Ratings for Group 1.5 Materials
59 Table 2-1.6 Ratings for Group 1.6 Materials
60 Table 2-1.6C Ratings for Group 1.6 Materials
61 Table 2-1.7 Ratings for Group 1.7 Materials
62 Table 2-1.7C Ratings for Group 1.7 Materials
63 Table 2-1.8 Ratings for Group 1.8 Materials
65 Table 2-1.8C Ratings for Group 1.8 Materials
66 Table 2-1.9 Ratings for Group 1.9 Materials
68 Table 2-1.9C Ratings for Group 1.9 Materials
70 Table 2-1.10 Ratings for Group 1.10 Materials
72 Table 2-1.10C Ratings for Group 1.10 Materials
74 Table 2-1.11 Ratings for Group 1.11 Materials
76 Table 2-1.11C Ratings for Group 1.11 Materials
78 Table 2-1.12 Ratings for Group 1.12 Materials
80 Table 2-1.12C Ratings for Group 1.12 Materials
81 Table 2-1.13 Ratings for Group 1.13 Materials
83 Table 2-1.13C Ratings for Group 1.13 Materials
84 Table 2-1.14 Ratings for Group 1.14 Materials
86 Table 2-1.14C Ratings for Group 1.14 Materials
87 Table 2-1.15 Ratings for Group 1.15 Materials
89 Table 2-1.15C Ratings for Group 1.15 Materials
90 Table 2-1.16 Ratings for Group 1.16 Materials
92 Table 2-1.16C Ratings for Group 1.16 Materials
94 Table 2-1.17 Ratings for Group 1.17 Materials
96 Table 2-1.17C Ratings for Group 1.17 Materials
97 Table 2-1.18 Ratings for Group 1.18 Materials
99 Table 2-1.18C Ratings for Group 1.18 Materials
100 Table 2-2.1 Ratings for Group 2.1 Materials
102 Table 2-2.1C Ratings for Group 2.1 Materials
104 Table 2-2.2 Ratings for Group 2.2 Materials
106 Table 2-2.2C Ratings for Group 2.2 Materials
108 Table 2-2.3 Ratings for Group 2.3 Materials
109 Table 2-2.3C Ratings for Group 2.3 Materials
110 Table 2-2.4 Ratings for Group 2.4 Materials
112 Table 2-2.4C Ratings for Group 2.4 Materials
114 Table 2-2.5 Ratings for Group 2.5 Materials
116 Table 2-2.5C Ratings for Group 2.5 Materials
118 Table 2-2.6 Ratings for Group 2.6 Materials
120 Table 2-2.6C Ratings for Group 2.6 Materials
122 Table 2-2.7 Ratings for Group 2.7 Materials
124 Table 2-2.7C Ratings for Group 2.7 Materials
126 Table 2-2.8 Ratings for Group 2.8 Materials
127 Table 2-2.8C Ratings for Group 2.8 Materials
128 Table 2-2.9 Ratings for Group 2.9 Materials
130 Table 2-2.9C Ratings for Group 2.9 Materials
132 Table 2-2.10 Ratings for Group 2.10 Materials
134 Table 2-2.10C Ratings for Group 2.10 Materials
136 Table 2-2.11 Ratings for Group 2.11 Materials
138 Table 2-2.11C Ratings for Group 2.11 Materials
140 Table 2-2.12 Ratings for Group 2.12 Materials
142 Table 2-2.12C Ratings for Group 2.12 Materials
144 Table 2-3.1 Ratings for Group 3.1 Materials
145 Table 2-3.1C Ratings for Group 3.1 Materials
146 Table 2-3.2 Ratings for Group 3.2 Materials
147 Table 2-3.2C Ratings for Group 3.2 Materials
148 Table 2-3.3 Ratings for Group 3.3 Materials
150 Table 2-3.3C Ratings for Group 3.3 Materials
151 Table 2-3.4 Ratings for Group 3.4 Materials
152 Table 2-3.4C Ratings for Group 3.4 Materials
153 Table 2-3.5 Ratings for Group 3.5 Materials
155 Table 2-3.5C Ratings for Group 3.5 Materials
156 Table 2-3.6 Ratings for Group 3.6 Materials
158 Table 2-3.6C Ratings for Group 3.6 Materials
160 Table 2-3.7 Ratings for Group 3.7 Materials
161 Table 2-3.7C Ratings for Group 3.7 Materials
162 Table 2-3.8 Ratings for Group 3.8 Materials
164 Table 2-3.8C Ratings for Group 3.8 Materials
166 Table 2-3.9 Ratings for Group 3.9 Materials
168 Table 2-3.9C Ratings for Group 3.9 Materials
169 Table 2-3.10 Ratings for Group 3.10 Materials
170 Table 2-3.10C Ratings for Group 3.10 Materials
171 Table 2-3.11 Ratings for Group 3.11 Materials
172 Table 2-3.11C Ratings for Group 3.11 Materials
173 Table 2-3.12 Ratings for Group 3.12 Materials
174 Table 2-3.12C Ratings for Group 3.12 Materials
175 Table 2-3.13 Ratings for Group 3.13 Materials
176 Table 2-3.13C Ratings for Group 3.13 Materials
177 Table 2-3.14 Ratings for Group 3.14 Materials
178 Table 2-3.14C Ratings for Group 3.14 Materials
179 Table 2-3.15 Ratings for Group 3.15 Materials
181 Table 2-3.15C Ratings for Group 3.15 Materials
183 Table 2-3.16 Ratings for Group 3.16 Materials
185 Table 2-3.16C Ratings for Group 3.16 Materials
186 Table 2-3.17 Ratings for Group 3.17 Materials
187 Table 2-3.17C Ratings for Group 3.17 Materials
188 Table 2-3.18 Ratings for Group 3.18 Materials
190 Table 2-3.18C Ratings for Group 3.18 Materials
191 Table 2-3.19 Ratings for Group 3.19 Materials
193 Table 2-3.19C Ratings for Group 3.19 Materials
195 Table 3A Valve Body Minimum Wall Thickness, tm, mm
199 Table 3B Valve Body Minimum Wall Thickness, tm, in.
203 Table 4 Minimum Wall Thickness for Socket Welding and Threaded Ends
204 MANDATORY APPENDIX I RADIOGRAPHY EXAMINATION: PROCEDURE AND ACCEPTANCE STANDARDS
I-1 RADIOGRAPHY PROCEDURE
I-2 ACCEPTANCE STANDARDS
205 Table I-1 Acceptance Criteria for Thickness per Para. I-2(a)
Table I-2 Acceptance Criteria for Thickness per Para. I-2(b)
Table I-3 Acceptance Criteria for Thickness per Para. I-2(c)
Table I-1 Acceptance Criteria for Thickness per Para. I-2(a)
Table I-2 Acceptance Criteria for Thickness per Para. I-2(b)
Table I-3 Acceptance Criteria for Thickness per Para. I-2(c)
206 MANDATORY APPENDIX II MAGNETIC PARTICLE EXAMINATION: PROCEDURE AND ACCEPTANCE STANDARDS
II-1 PROCEDURE
II-2 ACCEPTANCE STANDARDS1An indication may be larger than the imperfection that causes it; however, the size of the indication is the basis for acceptance evaluation.
207 MANDATORY APPENDIX III LIQUID PENETRANT EXAMINATION: PROCEDURE AND ACCEPTANCE STANDARDS
III-1 PROCEDURE
III-2 ACCEPTANCE STANDARDS1An indication may be larger than the imperfection that causes it; however, the size of the indication is the basis for acceptance evaluation.
208 MANDATORY APPENDIX IV ULTRASONIC EXAMINATION: PROCEDURE AND ACCEPTANCE STANDARDS
IV-1 PROCEDURE
IV-2 ACCEPTANCE STANDARDS
209 MANDATORY APPENDIX V REQUIREMENTS FOR LIMITED CLASS VALVES
V-1 GENERAL
210 Figure V-1 Limited Class Stress Area Limits
Table V-1 Material Coefficient, y
212 Table VI-1 Basis Equations for Minimum Wall Thickness, mm
MANDATORY APPENDIX VI BASIS EQUATIONS FOR MINIMUM WALL THICKNESS
VI-1 MINIMUM WALL THICKNESS EQUATIONS
VI-2 DESIGN VALUES
213 Table VI-2 Basis Equations for Minimum Wall Thickness, in.
214 MANDATORY APPENDIX VII REFERENCES
218 NONMANDATORY APPENDIX A RELATIONSHIP BETWEEN NOMINAL PIPE SIZE AND INSIDE DIAMETER
219 Table A-1 Inside Diameter, d
220 NONMANDATORY APPENDIX B METHOD USED FOR ESTABLISHING PRESSURE–TEMPERATURE RATINGS
B-1 GENERAL CONSIDERATIONS
221 B-2 STANDARD CLASS RATING METHOD
222 B-3 SPECIAL CLASS RATING METHOD
B-4 INTERMEDIATE RATING CLASS METHOD
223 Table B-1 Pressure–Temperature Matrix
Table B-2 Class–Diameter Matrix
B-5 MAXIMUM RATINGS
224 Table B-3 Ceiling Pressure, bar
226 Table B-3C Ceiling Pressure, psi
228 NONMANDATORY APPENDIX C QUALITY SYSTEM PROGRAM

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