ASME B16.20 2023

$75.42

ASME B16.20-2023 Metallic Gaskets for Pipe Flanges

Published By	Publication Date	Number of Pages
ASME	2023	62

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Category: ASME

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Description

This Standard covers materials, dimensions, tolerances, and markings for metal ring-joint gaskets, spiral-wound metal gaskets, and grooved metal gaskets with covering layers. These gaskets are dimensionally suitable for use with flanges described in reference flange standards ASME B16.5, ASME B16.47, API Specification 6A, and ISO 10423.

PDF Catalog

PDF Pages	PDF Title
4	CONTENTS
6	FOREWORD
7	ASME B16 COMMITTEE ROSTER
8	CORRESPONDENCE WITH THE B16 COMMITTEE
10	IMPORTANT INFORMATION CONCERNING USE OF ASBESTOS OR ALTERNATIVE MATERIALS
11	ASME B16.20-2023 SUMMARY OF CHANGES
12	LIST OF CHANGES IN RECORD NUMBER ORDER
14	PART GR GENERAL REQUIREMENTS GR-1 SCOPE GR-2 QUALITY SYSTEMS GR-3 REFERENCES GR-4 RELEVANT UNITS
15	PART RJ RING-JOINT GASKETS RJ-1 TYPES RJ-2 SIZE RJ-3 MATERIALS RJ-3.1 General RJ-3.2 Hardness RJ-4 MARKING RJ-5 DIMENSIONS AND TOLERANCES RJ-6 SURFACE FINISH RJ-7 IDENTIFICATION NUMBER Table RJ-3.2-1 Maximum Hardness for Ring Gaskets Table RJ-4-1 Ring Gasket Markings
16	Table RJ-5-1 Type R Ring Gasket Dimensions and Tolerances
19	Table RJ-5-2 Pipe Sizes for Type R Ring Gaskets Suitable for Referenced Standards
22	Table RJ-5-3 Type RX Ring Gasket Dimensions and Tolerances
24	Table RJ-5-4 Pipe Sizes for Type RX Ring Gaskets Suitable for Referenced Standards
25	Table RJ-5-5 Type BX Ring Gasket Dimensions and Tolerances
26	Table RJ-5-6 Pipe Sizes for Type BX Ring Gaskets Suitable for Referenced Standards
27	PART SW SPIRAL-WOUND GASKETS SW-1 SIZE AND CLASS SW-2 DIMENSIONS AND TOLERANCES SW-2.1 General SW-2.2 Construction SW-2.3 Metal Joining SW-2.4 Centering Ring SW-2.5 Inner Ring
28	SW-2.6 Performance Testing SW-3 MATERIALS SW-4 MARKING SW-4.1 General SW-4.2 Pressure Class SW-4.3 Color Coding
29	Figures Figure SW-2.1-1 Spiral-Wound Gasket
30	Tables Table SW-2.1-1 Dimensions for Spiral-Wound Gaskets Used With ASME B16.5 Flanges
33	Table SW-2.1-2 Dimensions for Spiral-Wound Gaskets Used With ASME B16.47 Series A Flanges
35	Table SW-2.1-3 Dimensions for Spiral-Wound Gaskets Used With ASME B16.47 Series B Flanges
37	Table SW-2.1-4 Inside Diameters of Inner Rings for Spiral-Wound Gaskets for Use With ASME B16.5 Flanges
38	Table SW-2.1-5 Inside Diameters of Inner Rings for Spiral-Wound Gaskets Used Between ASME B16.47 Series A Flanges
39	Table SW-2.1-6 Inside Diameters of Inner Rings for Spiral-Wound Gaskets Used Between ASME B16.47 Series B Flanges
40	Table SW-2.5-1 Minimum Pipe Wall Thickness Suitable for Use of Spiral-Wound Gaskets With Inner Rings for ASME B16.5 Flanges
41	Table SW-2.5-2 Maximum Bore of ASME B16.5 Flanges for Use With Spiral-Wound Gaskets
42	Table SW-2.5-3 Maximum Bore of ASME B16.47 Series A Flanges for Use With Spiral-Wound Gaskets
43	Table SW-2.5-4 Maximum Bore of ASME B16.47 Series B Flanges for Use With Spiral-Wound Gaskets
44	Table SW-3-1 Color Coding and Abbreviations for Spiral-Wound Gasket Materials
45	Table SW-4.1-1 Example Markings for Spiral-Wound Gaskets
46	PART JA JACKETED GASKETS
47	PART GM GROOVED METAL GASKETS WITH COVERING LAYERS GM-1 SIZE AND CLASS GM-2 DIMENSIONS AND TOLERANCES GM-2.1 General GM-2.2 Construction GM-2.3 Welding GM-2.4 Centering Ring GM-3 MATERIALS GM-3.1 Covering GM-3.2 Core GM-3.3 Centering Ring GM-4 MARKING GM-4.1 General
48	GM-4.2 Pressure Class GM-4.3 Color Coding
49	Figure GM-2.1-1 Grooved Metal Gasket With Covering Layers
50	Table GM-2.1-1 Dimensions for Grooved Metal Gaskets With Covering Layers Used With ASME B16.5 Flanges
51	Table GM-2.1-2 Dimensions for Grooved Metal Gaskets With Covering Layers Used With ASME B16.47 Series A Flanges
53	Table GM-2.1-3 Dimensions for Grooved Metal Gaskets With Covering Layers Used With ASME B16.47 Series B Flanges
55	Table GM-3.1-1 Color Coding and Abbreviations for Grooved Metal Gaskets With Covering Layers Materials
56	Figure GM-4.1-1 Illustration of Example Markings for Grooved Metal Gaskets With Covering Layers Table GM-4.1-1 Example Markings for Grooved Metal Gaskets With Covering Layers
57	MANDATORY APPENDIX I REFERENCES
58	NONMANDATORY APPENDIX A QUALITY SYSTEM PROGRAM