Dimensions Butt Weld Reducing Elbows 90° LR ASME B16.9
Elbow 90° Reducing
Dim Tolerances of Butt Weld Red Elbows 90° LR ASME B16.9
Nominal Pipe Size 1/2 to 2½ 3 to 3½ 4
Outside Diameter
at Bevel
+ 1.6
- 0.8
1.6 1.6
Inside Diameter
at End
0.8 1.6 1.6
Center to End LR (A) 2 2 2
Nominal Pipe Size 5 to 8 10 to 18 20 to 24
Outside Diameter
at Bevel
+ 2.4
- 1.6
+ 4
- 3.2
+ 6.4
- 4.8
Inside Diameter
at End
1.6 3.2 4.8
Center to End LR (A) 2 2 2
Wall Thickness (t) Not less than 87.5% of Nominal Wall Thickness

Note:

  • All dimensions are in millimeters unless otherwise indicated.
  • Wall thickness (t) must be specified by customer.
Reducing Elbow

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