NPS 32 Schedule 30 Pipe
32.000 in (812.8 mm) outside diameter on a 0.625 in (15.9 mm) wall, giving a 30.750 in (781.0 mm) bore and 209.43 lb/ft (311.67 kg/m) empty. ASME B36.10M.
- Nominal size
- NPS 32 (DN 800)
- Schedule
- Schedule 30
- Outside diameter
- 32.000 in (812.8 mm)
- Wall thickness
- 0.625 in (15.9 mm)
- Inside diameter
- 30.750 in (781.0 mm)
- Weight, empty
- 209.43 lb/ft (311.67 kg/m)
- Weight, water filled
- 531.39 lb/ft (790.79 kg/m)
- Flow area
- 742.643 in² (479124 mm²)
No other designation in NPS 32 shares this wall thickness, so Schedule 30 is unambiguous in this size.
Every schedule in NPS 32
Dimensions are given in inches, with the millimetre equivalent beneath in grey.
| Schedule | Wall thickness | Inside diameter | Weight, empty | Water (US gal/ft) |
|---|---|---|---|---|
| Sch 10 | 0.3127.92 mm | 31.376796.95 mm | 105.59157.14 kg/m | 40.166 |
| Sch 20 | 0.50012.70 mm | 31.000787.40 mm | 168.21250.33 kg/m | 39.209 |
| Sch 30 this page | 0.62515.88 mm | 30.750781.05 mm | 209.43311.67 kg/m | 38.579 |
| Sch 40 | 0.68817.48 mm | 30.624777.85 mm | 230.08342.40 kg/m | 38.263 |
| STD | 0.3759.52 mm | 31.250793.75 mm | 126.66188.49 kg/m | 39.844 |
| XS | 0.50012.70 mm | 31.000787.40 mm | 168.21250.33 kg/m | 39.209 |
Weight is plain-end carbon steel, w = 10.6802 × t × (OD − t) lb/ft.
Common questions
What is the inside diameter of NPS 32 schedule 30 pipe?
30.750 in (781.0 mm). The outside diameter is fixed at 32.000 in (812.8 mm) by ASME B36.10M, and the 0.625 in (15.9 mm) wall takes 1.250 in off it — 0.625 in from each side — leaving that bore.
How much does NPS 32 schedule 30 pipe weigh?
209.43 lb/ft (311.67 kg/m) empty, as plain-end carbon steel. Full of water it comes to 531.39 lb/ft (790.79 kg/m), because the bore holds 38.579 US gallons per foot. One short ton of this pipe is about 10 ft.
Does NPS 32 schedule 30 pipe use special flanges or fittings?
No. Flanges and buttweld fittings are dimensioned from NPS, so NPS 32 hardware fits this pipe in any schedule. The one thing that does follow the schedule is the bore of a weld neck flange or a fitting end prep, which has to be 30.750 in (781.0 mm) to match.