Taper Pipe Thread (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
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Number of threads per inch (TPI) :
n =
0.000
mm
Pitch :
P =
0.000
mm
Height of fundamental triangle :
H =
0.000
mm
Height of thread :
h =
0.000
mm
Radius at the top and bottom of the threads :
r =
0.000
mm
Gauge length from pipe end :
a =
0.000
mm
Axial tolerance of external thread :
b =
0.000
mm
Axial tolerance of internal thread :
c =
0.000
mm
From gauge plane toward larger diameter end :
f =
0.000
mm
From gauge plane toward smaller diameter end :
l =
0.000
mm
From gauge plane toward smaller diameter end (no vanish threads) :
t =
0.000
mm
Major diameter (mm)
0.000
not specified
not specified
=
Minor diameter (mm)
0.000
not specified
not specified
=
Pitch diameter (mm)
0.000
not specified
not specified
=
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
Related topic
How to create a taper thread profile with CAD software