NPS 34 Schedule 10 Pipe
34.000 in (863.6 mm) outside diameter on a 0.312 in (7.9 mm) wall, giving a 33.376 in (847.8 mm) bore and 112.26 lb/ft (167.05 kg/m) empty. ASME B36.10M.
- Nominal size
- NPS 34 (DN 850)
- Schedule
- Schedule 10
- Outside diameter
- 34.000 in (863.6 mm)
- Wall thickness
- 0.312 in (7.9 mm)
- Inside diameter
- 33.376 in (847.8 mm)
- Weight, empty
- 112.26 lb/ft (167.05 kg/m)
- Weight, water filled
- 491.55 lb/ft (731.50 kg/m)
- Flow area
- 874.900 in² (564451 mm²)
No other designation in NPS 34 shares this wall thickness, so Schedule 10 is unambiguous in this size.
Every schedule in NPS 34
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 | 33.376847.75 mm | 112.26167.05 kg/m | 45.449 |
| Sch 20 | 0.50012.70 mm | 33.000838.20 mm | 178.89266.22 kg/m | 44.431 |
| Sch 30 | 0.62515.88 mm | 32.750831.85 mm | 222.78331.54 kg/m | 43.760 |
| Sch 40 | 0.68817.48 mm | 32.624828.65 mm | 244.78364.27 kg/m | 43.424 |
| STD | 0.3759.52 mm | 33.250844.55 mm | 134.67200.41 kg/m | 45.107 |
| XS | 0.50012.70 mm | 33.000838.20 mm | 178.89266.22 kg/m | 44.431 |
Weight is plain-end carbon steel, w = 10.6802 × t × (OD − t) lb/ft.
Common questions
What is the inside diameter of NPS 34 schedule 10 pipe?
33.376 in (847.8 mm). The outside diameter is fixed at 34.000 in (863.6 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 34 schedule 10 pipe weigh?
112.26 lb/ft (167.05 kg/m) empty, as plain-end carbon steel. Full of water it comes to 491.55 lb/ft (731.50 kg/m), because the bore holds 45.449 US gallons per foot. One short ton of this pipe is about 18 ft.
Does NPS 34 schedule 10 pipe use special flanges or fittings?
No. Flanges and buttweld fittings are dimensioned from NPS, so NPS 34 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 33.376 in (847.8 mm) to match.