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Dimensions Butt-Welding Fittings

Butt-Welding Fittings - B16.9 - dimensions

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Dimensions of butt-welding fittings:

Long Radius Elbows

Nominal Pipe Size
(inches)
Outside Pipe Diameter
(inches)
Distance Center to End
(inches)
90o Elbows45o Elbows
1 1.315 1 1/2 7/8
1 1/4 1.660 1 7/8 1
1 1/2 1.900 2 1/4 1 1/8
2 2.375 3 1 3/8
2 1/2 2.875 3 3/4 1 3/4
3 3.5 4 1/2 2
3 1/2 4.0 5 1/4 2 1/4
4 4.5 6 2 1/2
5 5.563 7 1/2 3 1/8
6 6.625 9 3 3/4
8 8.625 12 5
10 10.750 15 6 1/4
  • 1 inch = 25.4 mm

180o Returns

Nominal Pipe Size
(inches)
Outside Pipe Diameter
(inches)
Distance
(inches)
Center to CenterBack to Face
1 1.315 3 2 3/16
1 1/4 1.660 3 3/4 2 3/4
1 1/2 1.900 4 1/2 3 1/4
2 2.375 6 4 3/16
2 1/2 2.875 7 1/2 5 3/16
3 3.5 9 6 1/4
3 1/2 4.0 10 1/2 7 1/4
4 4.5 12 8 1/4
5 5.563 15 10 5/16
6 6.625 18 12 5/16
8 8.625 24 16 5/16
10 10.750 30 20 3/8

Straight Tees

Nominal Pipe Size
(inches)
Outside Pipe Diameter
(inches)
Distance Center to End
(inches)
RunOutlet
1 1.315 1 1/2 1 1/2
1 1/4 1.660 1 7/8 1 7/8
1 1/2 1.900 2 1/4 2 1/4
2 2.375 2 1/2 2 1/2
2 1/2 2.875 3 3
3 3.5 3 3/8 3 3/8
3 1/2 4.0 3 3/4 3 3/4
4 4.5 4 1/8 4 1/8
5 5.563 4 7/8 4 7/8
6 6.625 5 5/8 5 5/8
8 8.625 7 7
10 10.750 8 1/2 8 1/2
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