Butwelding Elbows Tolerance

Nominal 
Pipe Size
 
Outside Diameter 
Wall Thickness
45° and 90°
180°
Center to End
Center to
Center
Back to Face
pol. Inches
mm.
pol. Inches
mm.
pol. Inches
mm.
pol. Inches
mm.
pol. Inches
mm.
pol. Inches
mm.
2.1/2" e menor
+1.6-0.8
Not less than
87,1/2 %
of the Nominal Wall Thickness
±1.6
±6.4
±6.4
3"a 4"
±1.6
±1.6
±6.4
±6.4
5"a 8"
+2.4-1.6
±1.6
±6.4
±6.4
10"a 18"
+4.0-3.2
±2.4
±9.5
±6.4
20"a 24"
+6.4-4.8
±2.4
±9.5
±6.4

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