NPS 28 Schedule 10 Pipe
28.000 in (711.2 mm) outside diameter on a 0.312 in (7.9 mm) wall, giving a 27.376 in (695.4 mm) bore and 92.26 lb/ft (137.30 kg/m) empty. ASME B36.10M.
- Nominal size
- NPS 28 (DN 700)
- Schedule
- Schedule 10
- Outside diameter
- 28.000 in (711.2 mm)
- Wall thickness
- 0.312 in (7.9 mm)
- Inside diameter
- 27.376 in (695.4 mm)
- Weight, empty
- 92.26 lb/ft (137.30 kg/m)
- Weight, water filled
- 347.44 lb/ft (517.05 kg/m)
- Flow area
- 588.613 in² (379750 mm²)
No other designation in NPS 28 shares this wall thickness, so Schedule 10 is unambiguous in this size.
Every schedule in NPS 28
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 this page | 0.3127.92 mm | 27.376695.35 mm | 92.26137.30 kg/m | 30.577 |
| Sch 20 | 0.50012.70 mm | 27.000685.80 mm | 146.85218.54 kg/m | 29.743 |
| Sch 30 | 0.62515.88 mm | 26.750679.45 mm | 182.73271.93 kg/m | 29.195 |
| STD | 0.3759.52 mm | 27.250692.15 mm | 110.64164.65 kg/m | 30.296 |
| XS | 0.50012.70 mm | 27.000685.80 mm | 146.85218.54 kg/m | 29.743 |
Weight is plain-end carbon steel, w = 10.6802 × t × (OD − t) lb/ft.
Common questions
What is the inside diameter of NPS 28 schedule 10 pipe?
27.376 in (695.4 mm). The outside diameter is fixed at 28.000 in (711.2 mm) by ASME B36.10M, and the 0.312 in (7.9 mm) wall takes 0.624 in off it — 0.312 in from each side — leaving that bore.
How much does NPS 28 schedule 10 pipe weigh?
92.26 lb/ft (137.30 kg/m) empty, as plain-end carbon steel. Full of water it comes to 347.44 lb/ft (517.05 kg/m), because the bore holds 30.577 US gallons per foot. One short ton of this pipe is about 22 ft.
Does NPS 28 schedule 10 pipe use special flanges or fittings?
No. Flanges and buttweld fittings are dimensioned from NPS, so NPS 28 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 27.376 in (695.4 mm) to match.