EngiRef / Pipe Schedule

NPS 1/4 Schedule 80

NPS 1/4 Schedule 80 (DN 8): 13.7 mm outside diameter, 3.02 mm wall. Inside diameter 7.66 mm, internal area 46.1 mm². Mass 0.8 kg per metre.

Specification

Nominal pipe size (NPS)
1/4
Nominal diameter (DN)
8
Schedule
80
Outside diameter (mm)
13.7
Wall thickness (mm)
3.02
Inside diameter (mm)
7.66
Mass per metre (kg/m)
0.8
Internal area (mm²)
46.1

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