1 inch ASME B16.11 Threaded Fitting Dimensions
1 inch (DN 25) to ASME B16.11: 2000 38 mm; 3000 44 mm; 6000 51 mm; C 45° — 2000 28 mm; C 45° — 3000 33 mm.
Key to dimensions
- A
- Centre to end — 90° elbow, tee and cross
- C
- Centre to end — 45° elbow
- H
- Outside diameter of band
- B
- Minimum length of thread
- L2
- Minimum effective thread length
- W
- End to end — full coupling
- P
- End to end — half coupling (W ÷ 2)
- D
- Outside diameter of coupling
- G
- End to end — cap
1 inch ASME B16.11 Threaded Fitting Dimensions — all dimensions
Threaded elbows, tees and crosses (mm)
| Dimension | Value | Equivalent |
|---|---|---|
| DN | 25 | |
| 2000 — A | 38 mm | 1.50 in |
| 3000 — A | 44 mm | 1.73 in |
| 6000 — A | 51 mm | 2.01 in |
| C 45° — 2000 | 28 mm | 1.10 in |
| C 45° — 3000 | 33 mm | 1.30 in |
| C 45° — 6000 | 35 mm | 1.38 in |
| 2000 — H | 46 mm | 1.81 in |
| 3000 — H | 56 mm | 2.20 in |
| 6000 — H | 62 mm | 2.44 in |
| Thread length — B | 14.7 mm | 0.579 in |
| Effective thread — L2 | 17.3 mm | 0.681 in |
Threaded couplings, caps, plugs and bushings (mm)
| Dimension | Value | Equivalent |
|---|---|---|
| DN | 25 | |
| Full coupling — W | 60 mm | 2.36 in |
| Half coupling — P | 30.0 mm | 1.18 in |
| 3000 — D | 44 mm | 1.73 in |
| 6000 — D | 57 mm | 2.24 in |
| Cap, 3000 — G | 41 mm | 1.61 in |
| Cap, 6000 — G | 43 mm | 1.69 in |
| Square head plug — Min. length | 19 mm | 0.748 in |
Values are nominal, from ASME B16.11 Threaded Fitting Dimensions. Verify critical dimensions against the current edition of the standard before design, purchase or fabrication.
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FAQ
1 inch ASME B16.11 Threaded Fitting Dimensions: common questions
What are the 1 inch ASME B16.11 Threaded Fitting Dimensions?
1 inch (DN 25) to ASME B16.11: 2000 38 mm; 3000 44 mm; 6000 51 mm; C 45° — 2000 28 mm; C 45° — 3000 33 mm.
Does Teshi Group manufacture 1 inch forged fittings?
Yes. Teshi Group is an OEM manufacturer in India of forged fittings to ASME B16.11, 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 B16.11 Threaded Fitting Dimensions chart.
Need 1 inch forged fittings?
Teshi Group manufactures them in India — send your size, rating and material and get a quote in 24–48 hours.
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