Return Bend specification
| ASME Standard | Sizes | Types |
|---|---|---|
| ASME B31.3 |
|
|
| Outer Diameter | Forming methods | Surface finishes |
| 38.0 – 206.0 mm |
|
|
| Test Certificates | Delivery Time | Different Bending methods |
|
7-14 days |
|
| Ends | Available Material at Mesta Inc | Wall thickness |
| Bevel End / Buttweld |
|
SCH 5 to SCH XXS |
Types of Return Bend
CS return bend
Cuni short radius return bend
SDSS return pipe bend
Inconel 180 degree return bend
Nickel alloy return pipe bend
Stainless steel return bend
Return bends dimensions

| NPS | Dia. Nominal | O.D. at Bevel | Center-to-Center (O) | Back-to-Face (K) | ||
|---|---|---|---|---|---|---|
| LR | SR | LR | SR | |||
| 1/2 | 15 | 21.3 | 76 | 48 | ||
| 1 | 25 | 33.4 | 76 | 51 | 56 | 41 |
| 1-1/4 | 32 | 42.2 | 95 | 64 | 70 | 52 |
| 1-1/2 | 40 | 48.3 | 114 | 76 | 83 | 62 |
| 2 | 50 | 60.3 | 152 | 102 | 106 | 81 |
| 2-1/2 | 65 | 73.0 | 190 | 127 | 132 | 100 |
| 3 | 80 | 88.9 | 229 | 152 | 159 | 121 |
| 3-1/2 | 90 | 101.6 | 267 | 178 | 184 | 140 |
| 4 | 100 | 114.3 | 305 | 203 | 210 | 159 |
| 5 | 125 | 141.3 | 381 | 254 | 262 | 197 |
| 6 | 150 | 168.3 | 457 | 305 | 313 | 237 |
| 8 | 200 | 219.1 | 610 | 406 | 414 | 313 |
| 10 | 250 | 273.0 | 762 | 508 | 518 | 391 |
| 12 | 300 | 323.8 | 914 | 610 | 619 | 467 |
| 14 | 350 | 355.6 | 1067 | 711 | 711 | 533 |
| 16 | 400 | 406.4 | 1219 | 813 | 813 | 610 |
| 18 | 450 | 457 | 1372 | 914 | 914 | 686 |
| 20 | 500 | 508 | 1524 | 1016 | 1016 | 762 |
| 22 | 550 | 559 | 1676 | 1118 | 1118 | 838 |
| 24 | 600 | 610 | 1829 | 1219 | 1219 | 914 |
Short radius return bend weight chart
| Nominal
Pipe Size | Outside
Diameter | Inside
Diameter | Wall
Tdickness T | Center
to Center O | Back
to Face K | Pipe
Schedule | Weight
Pounds |
| 1 | 1.32 | 1.05 | 0.133 | 2 | 1.62 | 40 | 0.5 |
| 1 1/4 | 1.66 | 1.38 | 0.14 | 2.5 | 2.06 | 40 | 0.8 |
| 1 1/2 | 1.9 | 1.61 | 0.145 | 3 | 2.44 | 40 | 1.1 |
| 2 | 2.38 | 2.07 | 0.154 | 4 | 3.19 | 40 | 1.9 |
| 2 1/2 | 2.88 | 2.47 | 0.203 | 5 | 3.94 | 40 | 4 |
| 3 | 3.5 | 3.07 | 0.216 | 6 | 4.75 | 40 | 6 |
| 3 1/2 | 4 | 3.55 | 0.226 | 7 | 5.5 | 40 | 8.7 |
| 4 | 4.5 | 4.03 | 0.237 | 8 | 6.25 | 40 | 12.2 |
| 5 | 5.56 | 5.05 | 0.258 | 10 | 7.75 | 40 | 19.2 |
| 6 | 6.62 | 6.07 | 0.28 | 12 | 9.31 | 40 | 32.9 |
| 8 | 8.62 | 7.98 | 0.322 | 16 | 12.31 | 40 | 64.9 |
| 10 | 10.75 | 10.02 | 0.365 | 20 | 15.38 | 40 | 112 |
| 12 | 12.75 | 12 | 0.375 | 24 | 18.38 | * | 157 |
| 14 | 14 | 13.25 | 0.375 | 28 | 21 | 30 | 208 |
| 16 | 16 | 15.25 | 0.375 | 32 | 24 | 30 | 257 |
| 18 | 18 | 17.25 | 0.375 | 36 | 27 | * | 325 |
| 20 | 20 | 19.25 | 0.375 | 40 | 30 | 20 | 416 |
| 24 | 24 | 23.25 | 0.375 | 48 | 36 | 20 | 592 |