REDUCERS
ขนาดก้นเชื่อม Reducers Con และ Ecc ASME B16.9
ท่อลด, ลดจุด, ลดเบี้ยว
| กรมอุทยานฯ | O.D. D | O.D. D1 | ความยาว H |
| 8 - 31/2 | 219.1 | 101.6 | 152 |
| 8-4 | 219.1 | 114.3 | 152 |
| 8-5 | 219.1 | 141.3 | 152 |
| 8-6 | 219.1 | 168.3 | 152 |
| 10-4 | 273 | 114.3 | 178 |
| 10-5 | 273 | 141.3 | 178 |
| 10-6 | 273 | 168.3 | 178 |
| 10-8 | 273 | 219.1 | 178 |
| 12-5 | 323.9 | 141.3 | 203 |
| 12-6 | 323.9 | 168.3 | 203 |
| 12-8 | 323.9 | 219.1 | 203 |
| 12-10 | 323.9 | 273 | 203 |
| 14-6 | 355.6 | 168.3 | 330 |
| 14-8 | 355.6 | 219.1 | 330 |
| 14-10 | 355.6 | 273 | 330 |
| 14-12 | 355.6 | 323.9 | 330 |
| 16-8 | 406.4 | 219 | 356 |
| 16-10 | 406.4 | 273 | 356 |
| 16-12 | 406.4 | 323.9 | 356 |
| 16 - 14 | 406.4 | 355.6 | 356 |
| 18-10 | 457 | 273 | 381 |
| 18-12 | 457 | 323.9 | 381 |
| 18 - 14 | 457 | 355.6 | 381 |
| 18 - 16 | 457 | 406.4 | 381 |
| กรมอุทยานฯ | O.D. D | O.D. D1 | ความยาว H |
| 36 - 30 | 914 | 762 | 610 |
| 36 - 32 | 914 | 813 | 610 |
| 36 - 34 | 914 | 864 | 610 |
| 38 - 26 | 965 | 660 | 610 |
| 38 - 28 | 965 | 711 | 610 |
| 38 - 30 | 965 | 762 | 610 |
| 38 - 32 | 965 | 813 | 610 |
| 38 - 34 | 965 | 864 | 610 |
| 38 - 36 | 965 | 914 | 610 |
| 40 - 30 | 1016 | 762 | 610 |
| 40 - 32 | 1016 | 813 | 610 |
| 40 - 34 | 1016 | 864 | 610 |
| 40 - 36 | 1016 | 914 | 610 |
| 40 - 38 | 1016 | 965 | 610 |
| 42 - 30 | 1067 | 762 | 610 |
| 42 - 32 | 1067 | 813 | 610 |
| 42 - 34 | 1067 | 864 | 610 |
| 42 - 36 | 1067 | 914 | 610 |
| 42 - 38 | 1067 | 965 | 610 |
| 42 - 40 | 1067 | 1016 | 610 |
| 44 - 36 | 1118 | 914 | 610 |
| 44 - 38 | 1118 | 965 | 610 |
| 44 - 40 | 1118 | 1016 | 610 |
| 44 - 42 | 1118 | 1067 | 610 |
| 46 - 38 | 1168 | 965 | 711 |
| 46 - 40 | 1168 | 1016 | 711 |
| 46 - 42 | 1168 | 1067 | 711 |
| 46 - 44 | 1168 | 1118 | 711 |
| 48 - 40 | 1219 | 1016 | 711 |
| 48 - 42 | 1219 | 1067 | 711 |
| 48 - 44 | 1219 | 1118 | 711 |
| 48 - 46 | 1219 | 1168 | 711 |
| ฯลฯ. | |||
| กรมอุทยานฯ | O.D. D | O.D. D1 | ความยาว H |
| 20-12 | 508 | 323.9 | 508 |
| 20 - 14 | 508 | 355.6 | 508 |
| 20 - 16 | 508 | 406.4 | 508 |
| 20 - 18 | 508 | 457 | 508 |
| 22 - 14 | 559 | 355.6 | 508 |
| 22 - 16 | 559 | 406.4 | 508 |
| 22 - 18 | 559 | 457 | 508 |
| 22 - 20 | 559 | 508 | 508 |
| 24 - 16 | 610 | 406.4 | 508 |
| 24 - 18 | 610 | 457 | 508 |
| 24 - 20 | 610 | 508 | 508 |
| 24 - 22 | 610 | 559 | 508 |
| 26 - 18 | 660 | 457 | 610 |
| 26 - 20 | 660 | 508 | 610 |
| 26 - 22 | 660 | 559 | 610 |
| 26 - 24 | 660 | 610 | 610 |
| 28 - 18 | 711 | 457 | 610 |
| 28 - 20 | 711 | 508 | 610 |
| 28 - 24 | 711 | 610 | 610 |
| 28 - 26 | 711 | 660 | 610 |
| 30 - 20 | 762 | 508 | 610 |
| 30 - 24 | 762 | 610 | 610 |
| 30 - 26 | 762 | 660 | 610 |
| 30 - 28 | 762 | 711 | 610 |
| 32 - 24 | 813 | 610 | 610 |
| 32 - 26 | 813 | 660 | 610 |
| 32 - 28 | 813 | 711 | 610 |
| 32 - 30 | 813 | 762 | 610 |
| 34 - 24 | 864 | 610 | 610 |
| 34 - 26 | 864 | 660 | 610 |
| 34 - 30 | 864 | 762 | 610 |
| 34 - 32 | 864 | 813 | 610 |
| 36 - 24 | 914 | 610 | 610 |
| 36 - 26 | 914 | 660 | 610 |