EngiRef / Pipe Schedule

NPS 1 Schedule 160

NPS 1 Schedule 160 (DN 25): 33.4 mm outside diameter, 6.35 mm wall. Inside diameter 20.7 mm, internal area 337 mm². Mass 4.24 kg per metre.

Specification

Nominal pipe size (NPS)
1
Nominal diameter (DN)
25
Schedule
160
Outside diameter (mm)
33.4
Wall thickness (mm)
6.35
Inside diameter (mm)
20.7
Mass per metre (kg/m)
4.24
Internal area (mm²)
337

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