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» Flange & Fitting » ASME B16.9 L/R Reducing Elbows

ASME B16.9 L/R Reducing Elbows

August 24, 2020

Technical Drawings

Drawing of long radius reducing elbows

Standard drawing of ASME B16.9 long radius reducing elbows.

The ASME B16.9 reducing elbows, usually furnished in long radius(L/R) style, not only change the piping direction by 90 degrees but also connect two piping with different outside diameters.

Dimensions

NPSO.D L
mm
inch		O.D S
mm
inch		A
mm
inch
2 x 1-1/260.3
2.38		48.3
1.90		76
3.00
2 x 1-1/460.3
2.38		42.2
1.66		76
3.00
2 x 160.3
2.38		33.4
1.32		76
3.00
2-1/2 x 273.0
2.88		60.3
2.38		95
3.75
2-1/2 x 1-1/273.0
2.88		48.3
1.90		95
3.75
2-1/2 x 1-1/473.0
2.88		42.2
1.66		95
3.75
3 x 2-1/288.9
3.50		73.0
2.88		114
4.50
3 x 288.9
3.50		60.3
2.38		114
4.50
3 x 1-1/288.9
3.50		48.3
1.90		114
4.50
3-1/2 x 3101.6
4.00		88.9
3.50		133
5.25
3-1/2 x 2-1/2101.6
4.00		73.0
2.88		133
5.25
3-1/2 x 2101.6
4.00		60.3
2.38		133
5.25
4 x 3-1/2114.3
4.50		101.6
4.00		152
6.00
4 x 3114.3
4.50		88.9
3.50		152
6.00
4 x 2-1/2114.3
4.50		73.0
2.88		152
6.00
4 x 2114.3
4.50		60.3
2.38		152
6.00
5 x 4141.3
5.56		114.3
4.50		190
7.50
5 x 3-1/2141.3
5.56		101.6
4.00		190
7.50
5 x 3141.3
5.56		88.9
3.50		190
7.50
5 x 2-1/2141.3
5.56		73.0
2.88		190
7.50
6 x 5168.3
6.62		141.3
5.56		229
9.00
6 x 4168.3
6.62		114.3
4.50		229
9.00
6 x 3-1/2168.3
6.62		101.6
4.00		229
9.00
6 x 3168.3
6.62		88.9
3.50		229
9.00
8 x 6219.1
8.62		168.3
6.62		305
12.00
8 x 5219.1
8.62		141.3
5.56		305
12.00
8 x 4219.1
8.62		114.3
4.50		305
12.00
10 x 8273.0
10.75		219.1
8.62		381
15.00
10 x 6273.0
10.75		168.3
6.62		381
15.00
10 x 5273.0
10.75		141.3
5.56		381
15.00
12 x 10323.8
12.75		273.0
10.75		457
18.00
12 x 8323.8
12.75		219.1
8.62		457
18.00
12 x 6323.8
12.75		168.3
6.62		457
18.00
14 x 12355.6
14.00		323.8
12.75		533
21.00
14 x 10355.6
14.00		273.0
10.75		533
21.00
14 x 8355.6
14.00		219.1
8.62		533
21.00
16 x 14406.4
16.00		355.6
14.00		610
24.00
16 x 12406.4
16.00		323.8
12.75		610
24.00
16 x 10406.4
16.00		273.0
10.75		610
24.00
18 x 16457.0
18.00		406.4
16.00		686
27.00
18 x 14457.0
18.00		355.6
14.00		686
27.00
18 x 12457.0
18.00		323.8
12.75		686
27.00
18 x 10457.0
18.00		273.0
10.75		686
27.00
20 x 18508.0
20.00		457.0
18.00		762
30.00
20 x 16508.0
20.00		406.4
16.00		762
30.00
20 x 14508.0
20.00		355.6
14.00		762
30.00
20 x 12508.0
20.00		323.8
12.75		762
30.00
20 x 10508.0
20.00		273.0
10.75		762
30.00
24 x 22610.0
24.00		559.0
22.00		914
36.00
24 x 20610.0
24.00		508.0
20.00		914
36.00
24 x 18610.0
24.00		457.0
18.00		914
36.00
24 x 16610.0
24.00		406.4
16.00		914
36.00
24 x 14610.0
24.00		355.6
14.00		914
36.00
24 x 12610.0
24.00		323.8
12.75		914
36.00

*NPS: Nominal Pipe Size; O.D L: Outside Diameter at Bevel, large end; O.D S: Outside Diameter at Bevel, small end; A: Center-to-End.

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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