NPS 2 Pipe
Outside diameter 2.375″
OD in mm 60.325 mm
NPT thread 2″ NPT (11.5 TPI)
Every NPS 2 pipe has this OD regardless of schedule — the schedule changes only the wall thickness and bore.
Schedules
| Schedule | Wall | Wall mm | Inside diameter | ID mm |
|---|---|---|---|---|
| 40 = STD | 0.154″ | 3.912 | 2.067″ | 52.502 |
| 80 = XS | 0.218″ | 5.537 | 1.939″ | 49.251 |
2″ NPT thread
| Designation | 2″ NPT |
|---|---|
| Threads per inch | 11.5 |
| Recommended tap drill | 2-7/32″ (2.2188″ / 56.356 mm) |
NPT is a tapered thread (3/4″ per foot on diameter) — it seals on the thread flanks with sealant. The size refers to the pipe's nominal size, not any measured thread diameter.