Long Welding Necks Flanges ( Thread And Standards For ANSI Flanges ( ANSI B2.1 ) / Class 300 Standard With 1.6mm Raised Face )
Product ID: P21
Threaded (screwed flanges): the threaded flange is similar to the slip-on flange, but the bore is threaded. Its chief merit is that it can be assembled without welding, explaining its use in low-pressure services at ordinary atmospheric temperatures, and in highly explosive areas where welding create a hazard.
| Nominal pipe size (mm) | A-thread lengths / class 150 | A-thread lengths / class 300 | A-thread lengths / class 400 | A-thread lengths / class 600 | A-thread lengths / class 900 | A-thread lengths / class 1500 | A-thread lengths / class 2500 |
|---|---|---|---|---|---|---|---|
| 1/2 | 15.9 | 15.9 | 15.9 | 15.9 | 22.2 | 22.2 | 28.6 |
| 3/4 | 15.9 | 15.9 | 15.9 | 15.9 | 25.4 | 25.4 | 31.8 |
| 1 | 17.5 | 17.5 | 17.5 | 17.5 | 28.6 | 28.6 | 34.9 |
| 1-1/4 | 20.0 | 20.7 | 20.7 | 20.7 | 30.2 | 30.1 | 38.1 |
| 1-1/2 | 22.2 | 22.2 | 22.2 | 22.2 | 31.8 | 31.8 | 44.5 |
| 2 | 25.4 | 28.6 | 28.6 | 28.6 | 38.1 | 38.1 | 50.8 |
| 2-1/2 | 28.6 | 31.8 | 31.8 | 31.8 | 47.6 | 47.6 | 57.2 |
| 3 | 30.1 | 31.8 | 34.9 | 34.9 | 41.3 | 50.8 | 63.5 |
| 4 | 33.4 | 36.5 | 36.5 | 41.3 | 47.6 | 57.2 | 69.9 |
| 5 | 36.5 | 42.9 | 42.9 | 47.6 | 54.0 | 63.5 | 76.2 |
| 6 | 39.7 | 46.1 | 46.1 | 50.8 | 57.2 | 69.9 | 82.6 |
| 8 | 445 | 50.8 | 50.8 | 60.3 | 63.5 | 76.2 | 95.3 |
| 10 | 49.2 | 55.6 | 55.6 | 65.1 | 71.5 | 84.2 | 108.0 |
| 12 | 55.6 | 60.3 | 60.3 | 69.9 | 76.2 | 92.1 | 120.7 |
| 14 | 57.2 | 63.5 | 63.5 | 73.0 | 82.6 | N/A | N/A |
| 16 | 63.5 | 68.3 | 68.3 | 77.8 | 85.7 | N/A | N/A |
| 18 | 68.3 | 69.9 | 69.9 | 79.4 | 88.9 | N/A | N/A |
| 20 | 69.9 | 73.0 | 73.0 | 82.6 | 92.1 | N/A | N/A |
| 24 | 82.6 | 82.6 | 82.6 | 92.1 | 101.6 | N/A | N/A |
Main Product:
steel & stainless flange, coupling, nipple etc.