EngiRef / Pipe Schedule

NPS 1/2 Schedule 80

NPS 1/2 Schedule 80 (DN 15): 21.3 mm outside diameter, 3.73 mm wall. Inside diameter 13.84 mm, internal area 150 mm². Mass 1.62 kg per metre.

Specification

Nominal pipe size (NPS)
1/2
Nominal diameter (DN)
15
Schedule
80
Outside diameter (mm)
21.3
Wall thickness (mm)
3.73
Inside diameter (mm)
13.84
Mass per metre (kg/m)
1.62
Internal area (mm²)
150

Outside diameters follow ASME B36.10M; inside diameter is OD − 2 × wall thickness.