0.000
TAPER PIPE THREADS (PT R Rc)
Taper Pipe Thread Profile
- Thread form angle : 55°
- The taper rate of taper pipe thread : 1 in 16
- P : Pitch
- n : TPI
- H : Height of fundamental triangle
- h : Height of thread
- r : Radius at the top and bottom of the threads
- D : Major diameter of internal thread
- D1 : Minor diameter of internal thread
- D2 : Pitch diameter of internal thread
- d : Major diameter of external thread
- d1 : Minor diameter of external thread
- d2 : Pitch diameter of external thread
- a : Gauge length from pipe end
- b : Axial tolerance of external thread
- c : Axial tolerance of internal thread
- f : From gauge plane toward larger diameter end
- l : From gauge plane toward smaller diameter end
- t : From gauge plane toward smaller diameter end (no vanish threads)
Taper Pipe Thread Dimension
Number of threads per inch (TPI) :
|
n = |
0 |
Pitch :
|
P = |
0 |
mm |
Height of fundamental triangle :
|
H = |
0 |
mm |
Height of thread :
|
h = |
0 |
mm |
Radius at the top and bottom of the threads :
|
r = |
0 |
mm |
Gauge length from pipe end :
|
a = |
0 |
mm |
Axial tolerance of external thread :
|
b = |
0 |
mm |
Axial tolerance of internal thread :
|
c = |
0 |
mm |
From gauge plane toward larger diameter end :
|
f = |
0 |
mm |
From gauge plane toward smaller diameter end :
|
l = |
0 |
mm |
From gauge plane toward smaller diameter end (no vanish threads) :
|
t = |
0 |
mm |
Major diameter (mm)
not specified
not specified
=
invalid size
Minor diameter (mm)
0.000
not specified
not specified
=
invalid size
Pitch diameter (mm)
0.000
not specified
not specified
=
invalid size
For not specified tolerance, it means zero.
Standard Taper Pipe Thread
| Size | TPI |
|---|---|
| R 1/16 | 28 |
| R 1/8 | 28 |
| R 1/4 | 19 |
| R 3/8 | 19 |
| R 1/2 | 14 |
| R 3/4 | 14 |
| R 1 | 11 |
| R 1 1/4 | 11 |
| R 1 1/2 | 11 |
| R 2 | 11 |
| R 2 1/2 | 11 |
| R 3 | 11 |
| R 4 | 11 |
| R 5 | 11 |
| R 6 | 11 |
R : external thread, Rc : internal thread