EngiRef / Pipe Schedule
NPS 1 Schedule 40
NPS 1 Schedule 40 (DN 25): 33.4 mm outside diameter, 3.38 mm wall. Inside diameter 26.64 mm, internal area 557 mm². Mass 2.5 kg per metre. ASME B36.10M pipe…
Specification
- Nominal pipe size (NPS)
- 1
- Nominal diameter (DN)
- 25
- Schedule
- 40
- Outside diameter (mm)
- 33.4
- Wall thickness (mm)
- 3.38
- Inside diameter (mm)
- 26.64
- Mass per metre (kg/m)
- 2.5
- Internal area (mm²)
- 557
Outside diameters follow ASME B36.10M; inside diameter is OD − 2 × wall thickness.