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The long-radius (L/R) 180° returns manufactured in accordance of ASME B16.9 can convert the fluid flow to the parallel but opposite direction. It looks like a half-cut of a circular ring. Usually, the L/R return is also called “180° L/R bend”.
NPS inch | O.D mm inch | O mm inch | K mm inch |
---|---|---|---|
1/2 | 21.3 0.84 | 76 3.00 | 48 1.88 |
3/4 | 26.7 1.05 | 76 3.00 | 51 2.00 |
1 | 33.4 1.32 | 76 3.00 | 56 2.19 |
1-1/4 | 42.2 1.66 | 95 3.75 | 70 2.75 |
1-1/2 | 48.3 1.90 | 114 4.50 | 83 3.25 |
2 | 60.3 2.38 | 152 6.00 | 106 4.19 |
2-1/2 | 73.0 2.88 | 190 7.50 | 132 5.19 |
3 | 88.9 3.50 | 229 9.00 | 159 6.25 |
3-1/2 | 101.6 4.00 | 267 10.50 | 184 7.25 |
4 | 114.3 4.50 | 305 12.00 | 210 8.25 |
5 | 141.3 5.56 | 381 15.00 | 262 10.31 |
6 | 168.3 6.62 | 457 18.00 | 313 12.31 |
8 | 219.1 8.62 | 610.0 24.00 | 414 16.31 |
10 | 273.0 10.75 | 762 30.00 | 518 20.38 |
12 | 323.8 12.75 | 914 36.00 | 619 24.38 |
14 | 355.6 14.00 | 1067 42.00 | 711 28.00 |
16 | 406.4 16.00 | 1219 48.00 | 813 32.00 |
18 | 457.0 18.00 | 1372 54.00 | 914 36.00 |
20 | 508.0 20.00 | 1524 60.00 | 1016 40.00 |
22 | 559.0 22.00 | 1676 66.00 | 1118 44.00 |
24 | 610.0 24.00 | 1829 72.00 | 1219 48.00 |
*NPS: Nominal Pipe Size; O.D: Outside Diameter at Bevel; O: Center-to-Center; K: Back-to-face.
ASME B16.9 Butt Welding Fittings | ||
---|---|---|
Elbow L/R | Reducing Elbow | Return L/R |
Elbow S/R | Return S/R | 3D Elbow |
Tee & Cross | Reducing Tee | Reducing Cross |
Stub End | Cap | Reducer |
End Bevel | Tolerance | Wall Thickness |
*Click to view dimensions of other ASME B16.9 standard fittings.