EngiRef / Pipe Schedule
NPS 1/2 Schedule 40
NPS 1/2 Schedule 40 (DN 15): 21.3 mm outside diameter, 2.77 mm wall. Inside diameter 15.76 mm, internal area 195 mm². Mass 1.27 kg per metre.
Specification
- Nominal pipe size (NPS)
- 1/2
- Nominal diameter (DN)
- 15
- Schedule
- 40
- Outside diameter (mm)
- 21.3
- Wall thickness (mm)
- 2.77
- Inside diameter (mm)
- 15.76
- Mass per metre (kg/m)
- 1.27
- Internal area (mm²)
- 195
Outside diameters follow ASME B36.10M; inside diameter is OD − 2 × wall thickness.