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ASME B16.5 Steel Backing Rings
● Material:Carbon Steel ; Stainless Steel;
● Surface Treatment for Carbon Steel: galvanized; plastic-sprayed;
● Ranged from 1/2” to 56”;
● Conform to ASME B16.5;
Data Sheet
| Inch | PE | Drilling To | D | K | B | n | d | h |
|---|---|---|---|---|---|---|---|---|
| 1/2" | 20 | ASME B16.5 150CL | 90 | 60 | 32 | 4 | 16 | 14 |
| 3/4" | 25 | ASME B16.5 150CL | 100 | 70 | 37 | 4 | 16 | 14 |
| 1" | 32 | ASME B16.5 150CL | 110 | 79 | 44 | 4 | 16 | 14 |
| 11/4" | 40 | ASME B16.5 150CL | 120 | 89 | 52 | 4 | 16 | 16 |
| 11/2" | 50 | ASME B16.5 150CL | 130 | 98 | 63 | 4 | 16 | 16 |
| 2" | 63 | ASME B16.5 150CL | 160 | 121 | 78 | 4 | 20 | 20 |
| 21/2" | 75 | ASME B16.5 150CL | 180 | 140 | 92 | 4 | 20 | 20 |
| 3" | 90 | ASME B16.5 150CL | 190 | 152 | 108 | 4 | 20 | 22 |
| 4" | 110 | ASME B16.5 150CL | 230 | 191 | 128 | 8 | 20 | 22 |
| [4"] | 125B | ASME B16.5 150CL | 230 | 191 | 140 | 8 | 20 | 22 |
| 5" | 125 | ASME B16.5 150CL | 255 | 216 | 140 | 8 | 23 | 24 |
| [5"] | 140 | ASME B16.5 150CL | 255 | 216 | 158 | 8 | 23 | 24 |
| 6" | 160 | ASME B16.5 150CL | 280 | 241 | 178 | 8 | 23 | 26 |
| [6"] | 180 | ASME B16.5 150CL | 280 | 241 | 195 | 8 | 23 | 26 |
| 8" | 200 | ASME B16.5 150CL | 345 | 298 | 235 | 8 | 23 | 28 |
| [8"] | 225 | ASME B16.5 150CL | 345 | 298 | 240 | 8 | 23 | 28 |
| 10" | 250 | ASME B16.5 150CL | 405 | 362 | 288 | 12 | 26 | 30 |
| [10"] | 280 | ASME B16.5 150CL | 405 | 362 | 294 | 12 | 26 | 30 |
| 12" | 315 | ASME B16.5 150CL | 485 | 432 | 345 | 12 | 26 | 35 |
| 14" | 355 | ASME B16.5 150CL | 535 | 476 | 376 | 12 | 30 | 40 |
| 16" | 400 | ASME B16.5 150CL | 595 | 540 | 430 | 16 | 30 | 40 |
| 18" | 450 | ASME B16.5 150CL | 635 | 578 | 470 | 16 | 32 | 45 |
| 20" | 500 | ASME B16.5 150CL | 700 | 635 | 533 | 20 | 32 | 45 |
| 22" | 560 | ASME B16.5 150CL | 760 | 692 | 590 | 20 | 35 | 50 |
| 24" | 630 | ASME B16.5 150CL | 815 | 749 | 645 | 20 | 35 | 50 |
| 28" | 710 | ASME B16.5 150CL | 925 | 864 | 745 | 28 | 35 | 71 |
| 32" | 800 | ASME B16.5 150CL | 1060 | 978 | 850 | 28 | 41 | 81 |
| 36" | 900 | ASME B16.5 150CL | 1170 | 1086 | 950 | 28 | 41 | 85 |
| 40" | 1000 | ASME B16.5 150CL | 1290 | 1124 | 1060 | 36 | 41 | 90 |
| 48" | 1200 | ASME B16.5 150CL | 1510 | 1423 | 1240 | 44 | 41 | 108 |
| 56" | 1400 | ASME B16.5 150CL | 1683 | 1594 | 1450 | 44 | 48 | 120 |