» Flange & Fitting » ASME B16.9 L/R Returns

ASME B16.9 L/R Returns

August 24, 2020

Technical Drawings

Drawing of long radius returns

Standard drawing of ASME B16.9 long radius returns.

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”.

Dimensions

NPS
inch
O.D
mm
inch
O
mm
inch
K
mm
inch
1/221.3
0.84
76
3.00
48
1.88
3/426.7
1.05
76
3.00
51
2.00
133.4
1.32
76
3.00
56
2.19
1-1/442.2
1.66
95
3.75
70
2.75
1-1/248.3
1.90
114
4.50
83
3.25
260.3
2.38
152
6.00
106
4.19
2-1/273.0
2.88
190
7.50
132
5.19
388.9
3.50
229
9.00
159
6.25
3-1/2101.6
4.00
267
10.50
184
7.25
4114.3
4.50
305
12.00
210
8.25
5141.3
5.56
381
15.00
262
10.31
6168.3
6.62
457
18.00
313
12.31
8219.1
8.62
610.0
24.00
414
16.31
10273.0
10.75
762
30.00
518
20.38
12323.8
12.75
914
36.00
619
24.38
14355.6
14.00
1067
42.00
711
28.00
16406.4
16.00
1219
48.00
813
32.00
18457.0
18.00
1372
54.00
914
36.00
20508.0
20.00
1524
60.00
1016
40.00
22559.0
22.00
1676
66.00
1118
44.00
24610.0
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/RReducing ElbowReturn L/R
Elbow S/RReturn S/R3D Elbow
Tee & CrossReducing TeeReducing Cross
Stub EndCapReducer
End BevelToleranceWall Thickness

*Click to view dimensions of other ASME B16.9 standard fittings.

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