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ASME B16.42 - 2021 Ductile Iron Pipe Flanges and Flanged Fittings: Classes 150 and 300, 2021
- CONTENTS
- FOREWORD
- ASME B16 COMMITTEE ROSTER
- CORRESPONDENCE WITH THE B16 COMMITTEE
- ASME B16.42-2021 SUMMARY OF CHANGES
- LIST OF CHANGES IN RECORD NUMBER ORDER
- 1 SCOPE
- 2 GENERAL [Go to Page]
- 2.1 References
- 2.2 Quality Systems
- 2.3 Relevant Units
- 2.4 Service
- 2.5 Convention
- 2.6 Denotation
- 3 PRESSURE–TEMPERATURE RATINGS [Go to Page]
- 3.1 General
- 3.2 Ratings of Flanged Joints
- 3.3 Rating Temperature
- 3.4 Temperature Considerations
- 3.5 Variances From Ratings
- 4 SIZE [Go to Page]
- 4.1 Nominal Size
- 4.2 Reducing Fitting Sizes
- 4.3 Reducing Flange Sizes
- 5 MARKING
- 6 MATERIALS [Go to Page]
- 6.1 Castings
- 6.2 Bolting
- 6.3 Gaskets
- 7 DIMENSIONS [Go to Page]
- 7.1 Center to Contact Surface and Center to End
- 7.2 Facings
- 7.3 Flange Bolt Holes
- 7.4 Spot Facing
- 7.5 Reducing Flanges
- 7.6 Threads for Threaded Flanges
- 7.7 Stud Bolts, Bolts, and Nuts
- 7.8 Gaskets
- 7.9 Drains
- 8 TOLERANCES [Go to Page]
- 8.1 Wall Thickness
- 8.2 Center to Contact Surface and Contact Surface to Contact Surface
- 8.3 Facings
- 8.4 Flange Thickness
- 8.5 Bore of Flanges
- 8.6 Drilling and Facing
- 9 TESTING [Go to Page]
- 9.1 General
- 9.2 Flange Testing
- 9.3 Fitting Shell Tests
- Figures [Go to Page]
- Figure 4.2-1 Method of Designating Outlets of Reducing Fittings
- Figure 7.9.3-1 Method of Designating Location of Tapped Holes for Drains When Specified
- Tables [Go to Page]
- Table 3.1-1 Pressure–Temperature Ratings
- Table 3.1-1C Pressure–Temperature Ratings
- Table 7.1.1-1 Dimensions of Class 150 Elbows, Double Branch Elbows, Tees, Crosses, Laterals, True Ys (Straight Sizes), and Reducers
- Table 7.1.1-2 Dimensions of Class 300 Elbows, Tees, Crosses, Laterals, True Ys (Straight Sizes), and Reducers
- Table 7.1.4-1 Dimensions of Class 150 Base Elbows and Base Tees
- Table 7.1.4-2 Dimensions of Class 300 Base Elbows and Base Tees
- Table 7.3-1 Templates for Drilling Class 150 Ductile Iron Flanges
- Table 7.3-2 Templates for Drilling Class 300 Ductile Iron Flanges
- Table 7.4-1 Dimensions of Class 150 Ductile Iron Flanges
- Table 7.4-2 Dimensions of Class 300 Ductile Iron Flanges
- Table 7.5.2-1 Reducing Threaded Flanges for Classes 150 and 300
- MANDATORY APPENDIX I REFERENCES
- NONMANDATORY APPENDIX A QUALITY SYSTEM PROGRAM
- NONMANDATORY APPENDIX B METHODS FOR ESTABLISHING PRESSURE–TEMPERATURE RATINGS [Go to Page]
- B-1 GENERAL
- B-2 RATINGS IN CUSTOMARY UNITS [Go to Page]
