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DIMENSIONAL
TOLERANCES AND WELDING NEDS
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|
Nominal Pipe Size |
All Fittings |
90 Elbows 45Elbows Tees |
Reducers Lap-Joint Stub Ends |
180ขX Returns |
Caps |
Lap-Joint Stub Ends |
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|
Outside Diameter at Welding End |
Wall Thickness |
Center to End Dimension A B C M |
Overall Length FH |
Center to Center Dimension P |
Back to Center Dimension K |
Alignment of End U |
Over length E |
Fillet Radius of Lap A |
Outside Diameter of Lap G |
|
| 1/2 to 1 1/2 | กำ 0.03 |
Not less than 87.5% of nominal thickness |
กำ 0.06 | กำ 0.06 | กำ 0.25 | กำ 0.25 | กำ 0.03 | กำ 0.12 |
+ 0 - 0.03 |
+ 0 - 0.03 |
| 2 to 3 1/2 | กำ 0.03 | กำ 0.06 | กำ 0.06 | กำ 0.25 | กำ 0.25 | กำ 0.03 | กำ 0.12 |
+ 0 - 0.03 |
+ 0 - 0.03 |
|
| 4 | กำ 0.03 | กำ 0.06 | กำ 0.06 | กำ 0.25 | กำ 0.25 | กำ 0.03 | กำ 0.12 |
+ 0 - 0.06 |
+ 0 - 0.03 |
|
| 5 to 8 |
+ 0.06 - 0.03 |
กำ 0.06 | กำ 0.06 | กำ 0.25 | กำ 0.25 | กำ 0.03 | กำ 0.25 |
+ 0 - 0.06 |
+ 0 - 0.03 |
|
| 10 to 18 |
+ 0.09 - 0.03 |
กำ 0.09 | กำ 0.09 | กำ 0.38 | กำ 0.25 | กำ 0.06 | กำ 0.25 |
+ 0 - 0.06 |
+ 0 - 0.06 |
|
| 20 to 24 |
+ 0.12 - 0.03 |
กำ 0.09 | กำ 0.09 | กำ 0.38 | กำ 0.25 | กำ 0.06 | กำ 0.25 |
+ 0 - 0.06 |
+ 0 - 0.06 |
|
ก@
|
|
All Fittings |
90 Elbows 45Elbows Tees |
Reducers Lap-Joint Stub Ends |
Caps |
180ขX Returns |
Lap-Joint Stub Ends |
|||||||
|
Nominal Pipe Size |
Outside Diameter at Bevel |
Inside Diameter at End |
Wall Thickness |
Center to End Dimension A B C M |
Overall Length FH |
Over length E |
Center to Center Dimension P |
Back to Center Dimension K |
Alignment of End U |
Outside Diameter of Lap G |
Thickness of Lap T |
Fillet Radius of Lap R |
| 1/2 to 2 1/2 |
+ 0.06
- 0.03 |
กำ 0.03 |
Not less than 87.5% of nominal thickness |
กำ 0.06 | กำ 0.06 | กำ 0.12 | กำ 0.25 | กำ 0.25 | กำ 0.03 |
+ 0 - 0.03 |
+ 0.06 - 0 |
+ 0 - 0.03 |
| 3 to 3 1/2 | กำ 0.06 | กำ 0.06 | กำ 0.06 | กำ 0.06 | กำ 0.12 | กำ 0.25 | กำ 0.25 | กำ 0.03 |
+ 0 - 0.03 |
+ 0.06 - 0 |
+ 0 - 0.03 |
|
| 4 | กำ 0.06 | กำ 0.06 | กำ 0.06 | กำ 0.06 | กำ 0.12 | กำ 0.25 | กำ 0.25 | กำ 0.03 |
+ 0 - 0.03 |
+ 0.06 - 0 |
+ 0 - 0.06 |
|
| 5 to 8 |
+ 0.09 - 0.06 |
กำ 0.06 | กำ 0.06 | กำ 0.06 | กำ 0.25 | กำ 0.25 | กำ 0.25 | กำ 0.03 |
+ 0 - 0.03 |
+ 0.06 - 0 |
+ 0 - 0.06 |
|
| 10 to 18 |
+ 0.16 - 0.12 |
กำ 0.12 | กำ 0.09 | กำ 0.09 | กำ 0.25 | กำ 0.38 | กำ 0.25 | กำ 0.06 |
+ 0 - 0.06 |
+ 0.06 - 0 |
+ 0 - 0.06 |
|
| 20 to 24 |
+ 0.25 - 0.19 |
กำ 0.19 | กำ 0.09 | กำ 0.09 | กำ 0.25 | กำ 0.38 | กำ 0.25 | กำ 0.06 |
+ 0 - 0.06 |
+ 0.06 - 0 |
+ 0 - 0.06 |
|
| 26 to 30 |
+ 0.25 - 0.19 |
กำ 0.19 |
กำ 0.12 | กำ 0.19 | กำ 0.38 | |||||||
| 32 to 48 |
+ 0.25 - 0.19 |
กำ 0.19 |
กำ 0.19 | กำ 0.19 | กำ 0.38 | |||||||
ก@