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ASME B1.20.3-1976-R2023 Dryseal Pipe Threads,Inch, 1976
- CONTENTS
- Section 1 Product Threads [Go to Page]
- 1.1 Introduction
- 1.2 Thread Types
- 1.3 Thread Designations and Notation [Go to Page]
- 1.3.1 NPTF Thread Class
- 1.3.2 Designation of Plated Threads
- 1.4 Applications [Go to Page]
- 1.4.1 Type [Go to Page]
- 1.4.1.1 NPTF
- 1.4.1.2 PTF-SAE Short
- 1.4.1.3 NPSF
- 1.4.1.4 NPSI
- 1.4.2 Class [Go to Page]
- 1.4.2.1 NPTF Class 1
- 1.4.2.2 NPTF Class 2
- 1.5 Assembly Limitations
- 1.6 Thread Form and Tolerance
- 1.7 Basic Dimensions [Go to Page]
- 1.7.1 NPTF Threads
- 1.7.2 PTF-SAE SHORT, External Threads
- 1.7.3 PTF-SAE SHORT, Internal Threads
- 1.7.4 NPSF Threads
- 1.7.5 NPSl Threads
- Appendix A Letter Symbols and Formulas [Go to Page]
- A.1 Symbols Designating the Dimensions of Pipe Threads
- A.2 Formulas for Diameter and Length of Thread
- Appendix B Suggested Tap Drill Sizes for Internal Dryseal Pipe Threads
- Appendix C Special Short, Special Extra Short, Fine, and Special Diameter-Pitch Combination Dryseal Pipe Threads [Go to Page]
- C.1 Dryseal Special Short Taper Pipe Thread, PTF-SPL SHORT
- C.2 Dryseal Special Extra Short Taper Pipe Thread, PTF-SPL EXTRA SHORT
- C.3 Limitations of Assembly
- C.4 Dryreal Fine Taper Thread Series, F-PTF
- C.5 Dryseal Special Diameter-Pitch Combination Series, SPL-PTF
- C.6 Formulas for Diameter and Length of Thread
- C.7 Designations
- Tables [Go to Page]
- 1 Recommended Limitations of Assembly Among the Various Types of Dryseal Threads
- 2 Reference Dimensions for Assembled Engagement of Dryseal Pipe Threads
- 3 Basic Dimensions for NPTF Threads
- 4 Basic Dimensions for PTF-SAE SHORT, External Threads
- 5 Basic Dimensions for PTF-SAE Short, Internal Threads
- 6 Dimensional Data for NPSF Threads
- 7 Dimensional Data for NPSI Threads
- A1 Pipe Thread Symbols
- B1 Suggested Tap Drill Sizes For Internal Dryseal Pipe Threads
- C1 Basic Dimensions of Dryseal Fine Taper Pipe Thread, F-PTF
- C2 Basic Dimensions of Dryseal Special Taper Pipe Thread, SPL-PTF (For Thin Wall Nominal Size OD Tubing)
- Figures [Go to Page]
- 1 Extreme Mating Conditions for Dryseal Pipe Threads
- 2 Thread Form and Limits on Root and Crest Tuncation of Product Threads
- A1 Application of Pipe Thread Symbols
- C1 Comparison of Special Dryseal Threads with Standard Length Dryseal Threads [Go to Page]
