PIPE THREADS
￭ Difference
|
|
JIS0202 Appendix |
JIS0202 Text |
|
Screw thread abbreviation |
PF |
G |
|
Range of thread size |
PF1/8∼PF12" |
G1/16∼G6" |
|
Classes |
Both external & internal thread are divided into classes A & B |
Only the external thread is divided into classes A & B |
|
|
The tolerances of the external and internalthreads of PF 1/8∼6" differ from the specifications in the Appendix, but they are the same as those specified in the Text. |
|
￭ JIS B0203-1982 Taper pipe threads
|
Symbol specified in Text(in ISO7/1) |
External taper thread：R Internal taper thread：Rc Internal parallel thread：Rp |
|
Symbol specified in Appendix |
Externaltaperthread：PT Internal taper thread：PT Internal parallelthread：PS |