1 inch ASME B16.9 Butt Weld Elbow Dimensions
1 inch (DN 25) to ASME B16.9: OD at bevel 33.4 mm; 90° long radius 38 mm; 45° long radius 22 mm; 90° short radius 25 mm; 180° LR return 76 mm.
Key to dimensions
- OD
- Outside diameter at the bevel
- A
- Centre-to-end, 90° elbow (long radius, short radius or 3D)
- B
- Centre-to-end, 45° elbow
- O
- Centre-to-centre, 180° return
- K
- Back-to-face, 180° return
1 inch ASME B16.9 Butt Weld Elbow Dimensions — all dimensions
Elbows and 180° returns (mm)
| Dimension | Value | Equivalent |
|---|---|---|
| DN | 25 | |
| at bevel — OD | 33.4 mm | 1.31 in |
| 90° long radius — A | 38 mm | 1.50 in |
| 45° long radius — B | 22 mm | 0.866 in |
| 90° short radius — A | 25 mm | 0.984 in |
| 180° LR return — O | 76 mm | 2.99 in |
| 180° LR return — K | 56 mm | 2.20 in |
| 90° 3D — A | 76 mm | 2.99 in |
| 45° 3D — B | 31 mm | 1.22 in |
Values are nominal, from ASME B16.9 Butt Weld Elbow Dimensions. Verify critical dimensions against the current edition of the standard before design, purchase or fabrication.
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Other sizes — ASME B16.9 Butt Weld Elbow Dimensions
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1 inch ASME B16.9 Butt Weld Elbow Dimensions: common questions
What are the 1 inch ASME B16.9 Butt Weld Elbow Dimensions?
1 inch (DN 25) to ASME B16.9: OD at bevel 33.4 mm; 90° long radius 38 mm; 45° long radius 22 mm; 90° short radius 25 mm; 180° LR return 76 mm.
Does Teshi Group manufacture 1 inch butt weld fittings?
Yes. Teshi Group is an OEM manufacturer in India of butt weld fittings to ASME B16.9, in carbon, alloy, stainless, duplex, super duplex, nickel alloys, titanium and Cu-Ni, with EN 10204 3.1 certificates.
Can I download the 1 inch dimensions as a PDF?
Yes. Use “Download PDF for this size” on this page to get a single-size, print-ready PDF with the drawing and every tabulated dimension, or download the full ASME B16.9 Butt Weld Elbow Dimensions chart.
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