EngiRef / Pipe Schedule
NPS 1-1/4 Schedule 40
NPS 1-1/4 Schedule 40 (DN 32): 42.2 mm outside diameter, 3.56 mm wall. Inside diameter 35.08 mm, internal area 966 mm². Mass 3.39 kg per metre.
Specification
- Nominal pipe size (NPS)
- 1-1/4
- Nominal diameter (DN)
- 32
- Schedule
- 40
- Outside diameter (mm)
- 42.2
- Wall thickness (mm)
- 3.56
- Inside diameter (mm)
- 35.08
- Mass per metre (kg/m)
- 3.39
- Internal area (mm²)
- 966
Outside diameters follow ASME B36.10M; inside diameter is OD − 2 × wall thickness.