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Drawing:
Standard: ASME B16.9, MSS SP-43 1/2
| 公称通径 Nominal Pipe Size | 端部外径 Outside Diameter at Bevel | 长度 Length | 圆角半径 Radius of Fillet | 搭接 | |
| A 型 | B 型 | ||||
| NPS | D | L | R | G | |
| 1/2 | 21.3 | 51 | 3 | 0.8 | 35 |
| 3/4 | 26.7 | 51 | 3 | 0.8 | 43 |
| 1 | 33.4 | 51 | 3 | 0.8 | 51 |
| 11/4 | 42.2 | 51 | 5 | 0.8 | 64 |
| 11/2 | 48.3 | 51 | 6 | 0.8 | 73 |
| 2 | 60.3 | 64 | 8 | 0.8 | 92 |
| 21/2 | 73 | 64 | 8 | 0.8 | 106 |
| 3 | 88.9 | 64 | 10 | 0.8 | 127 |
| 31/2 | 101.6 | 76 | 10 | 0.8 | 140 |
| 4 | 114.3 | 76 | 11 | 0.8 | 157 |
| 5 | 141.3 | 76 | 11 | 1.6 | 185 |
| 6 | 168.3 | 89 | 13 | 1.6 | 218 |
| 8 | 219.1 | 102 | 13 | 1.6 | 270 |
| 10 | 273 | 127 | 13 | 1.6 | 324 |
| 12 | 323.8 | 152 | 13 | 1.6 | 381 |
| 14 | 355.6 | 152 | 13 | 1.6 | 413 |
| 16 | 406.4 | 152 | 13 | 1.6 | 470 |
| 18 | 457 | 152 | 13 | 1.6 | 533 |
| 20 | 508 | 152 | 13 | 1.6 | 584 |
| 22 | 559 | 152 | 13 | / | 641 |
| 24 | 610 | 152 | 13 | 1.6 | 692 |
Minimum lap thickness shall not be less than nominal wall thickness.
Contact faces of stub ends shall have a concentric serration or spiral according to the purchaser’s requirements.
These lengths and radius apply for schedule 40s or thinner stainless steeel pipes.
Radius of fillet B is only effective to MSS SP-43 lap joint stub ends.
