BUTTWELD FITTINGS TYPES – 180° Return Bends – Long Radius STD

Standard Long Radius 180° Return Bends
Pipe Size Outside Diameter O.D. Inside Diameter I.D. Wall Thickness T Center to Center O Back to Face K Pipe Schedule Number Approx. Weight in Pounds
1/2 0.840 0.622 0.109 3 1 7/8 40 0.32
3/4 1.050 0.824 0.113 2 1/4 1 11/16 40 0.34
1 1.315 1.049 0.133 3 2 3/16 40 0.74
1 1/4 1.660 1.380 0.140 3 3/4 2 3/4 40 1.1
1 1/2 1.900 1.610 0.145 4 1/2 3 1/4 40 1.6
2 2.375 2.067 0.154 6 4 3/16 40 3.2
2 1/2 2.875 2.469 0.203 7 1/2 5 3/16 40 6.1
3 3.500 3.068 0.216 9 6 1/4 40 9.4
3 1/2 4.000 3.548 0.226 10 1/2 7 1/4 40 12.8
4 4.500 4.026 0.237 12 8 1/4 40 17.5
5 5.563 5.047 0.258 15 10 5/16 40 29.3
6 6.625 6.065 0.280 18 12 5/16 40 47.0
8 8.625 7.981 0.322 24 16 5/16 40 87.0
10 10.750 10.020 0.365 30 20 3/8 40 164.0
12 12.750 12.000 0.375 36 24 3/8 * 237.0
14 14.000 13.250 0.375 42 28 30 311.0
16 16.000 15.250 0.375 48 32 30 408.0
18 18.000 17.250 0.375 54 36 * 514.0
20 20.000 19.250 0.375 60 40 20 636.0
24 24.000 23.250 0.375 72 48 20 908.0

1. Conforms to ASME B16.9 & ASTM A234 WPB.
2. All dimensions are in inches.
3. All weights are in pounds and approximated or estimated
* This size thickness does not correspond to any pipe schedule number.