|
British Standard Pipe Tapered
The BSPT (tapered) male will mate with a BSPT (tapered) female, or a BSPP (parallel) female.
The BSPT male has tapered threads. When mating with either the BSPT (tapered) female or the BSPP (parallel) female port, the seal is made on the threads.
The BSPT connector is similar to, but not interchangeable with, the NPTF connector. The thread pitch is different in most cases, and the thread angle is 55° instead of the 60° angle found on NPTF threads.
British Standard Pipe Parallel (BSPP)
| Dash Size |
Nominal Size (In.) |
Thread Size |
Male Tapered Thread I.D. (In.) |
Female Tapered Thread O.D. (In.) |
| -2 |
1/8 |
1/8 -28 |
3/8 |
11/32 |
| -4 |
1/4 |
1/4 -19 |
17/32 |
15/32 |
| -6 |
3/8 |
3/8 -19 |
21/32 |
19/32 |
| -8 |
1/2 |
1/2 -14 |
13/16 |
3/4 |
| -10 |
5/8 |
5/8 -14 |
29/32 |
13/16 |
| -12 |
3/4 |
3/4 -14 |
1/32 |
31/32 |
| -16 |
1 |
1-11 |
1 11/32 |
1 7/32 |
| -20 |
1 1/4 |
1 1/4 -11 |
1 21/32 |
1 17/32 |
| -24 |
1 1/2 |
1 1/2 -11 |
1 7/8 |
1 25/32 |
| -32 |
2 |
3 2-11 |
11/32 |
3 7/32 |
|
| 
