NPS 12 Pipe Dimensions
NPS 12 pipe dimensions reference with DN size, outside diameter, wall thickness, inside diameter, and weight for available schedules.
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NPS 12 Pipe Dimensions
| Schedule | DN | OD | Wall | ID | Weight |
|---|---|---|---|---|---|
| Schedule 40 | 300 | 12.75 in / 323.85 mm | 0.406 in / 10.31 mm | 11.938 in / 303.23 mm | 53.57 lb/ft / 79.72 kg/m |
| Schedule 80 | 300 | 12.75 in / 323.85 mm | 0.688 in / 17.48 mm | 11.374 in / 288.90 mm | 88.71 lb/ft / 132.02 kg/m |
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About NPS 12
- NPS: 12
- DN: 300
- Outside diameter: 12.75 in (323.85 mm)
NPS 12 identifies a nominal pipe size. The outside diameter remains standardized across different schedules, while wall thickness, inside diameter, and weight change with schedule.
Select a schedule above to view the exact dimensional reference page for NPS 12.
FAQ
What is the DN for NPS 12?
NPS 12 corresponds to DN 300.
Does the outside diameter change between schedules?
No. For a given NPS, the standardized outside diameter remains the same while wall thickness changes by schedule.
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