| Thread |
American conical pipe thread acc. ANSI/ASME B 1.20.1 – 1983 |
| Abbreviation |
NPT |
| Designation |
3/8 – 18 NPT |
| Type of thread |
inside thread conical outside thread conical (cone 1:16) |
| Application |
Pipe threads for pipes and tube connections with sealing tapes (see pages 8 – 10) are sealing inside the threads |
| Description |
The conical NPT-outside thread shows at the relating level &147;. The adjustment power created by using of a suitable tool increases the thread reach and seals the screw connection supported by a suitable sealant (e.g. hemp or Teflon). Since both inside and outside threads are conical, more thread-turns contribute to better sealing and power admission. The little thread-flattening causes a small leakage space. |
