Dimensional Tolerances (MSS)
MSS SP-43
Pipe Size |
All Fittings |
90 & 45 Elbows and Tees |
Reducers and Lap Joint Stub ends |
Caps |
Outside Diameter at Bevel, D (1) |
Inside Diameter at End (1) |
Wall Thickness t |
Center-to-End Dimensions A,B,C,M |
Overall Length, F,H |
Overall Length, E |
IN |
MM |
IN |
MM |
|
IN |
MM |
IN |
MM |
IN |
MM |
½ ~ 2½ |
+0.06 |
+1.6 |
±0.03 |
±0.8 |
Not Less Than 87.5% of Nominal Thickness |
±0.06 |
±2 |
±0.06 |
±2 |
±0.12 |
±3 |
-0.03 |
-0.8 |
3 ~ 2½ |
±0.06 |
±1.6 |
±0.06 |
±1.6 |
4 |
5 ~ 8 |
+0.09 |
+2.4 |
±0.25 |
±6 |
-0.06 |
-1.6 |
10 ~ 18 |
+0.16 |
+4.0 |
±0.12 |
±3.2 |
±0.09 |
±0.09 |
-0.12 |
-3.2 |
20 ~ 24 |
+0.25 -0.19 |
+6.4 -4.8 |
±0.19 |
±4.8 |
26 ~ 30 |
±0.12 |
±3 |
±0.19 |
±5 |
±0.38 |
±10 |
32 ~ 48 |
±0.19 |
±5 |
Nominal Pipe Size |
All Fittings |
90 Elbows |
Reducers |
180 Returns |
Caps |
Lap-Joint Stub Ends |
45 Elbows |
Lap-Joint |
Tees |
Stub Ends |
Outside Diameter at Welding End(a) |
Wall Thick- ness |
Center-to- End A-B-C-M |
Overall Length F-H |
Center- to- Center O |
Back- to- Face K |
Alignment of Ends U |
Overall Length E |
|
|
Fillet(b) |
Outside |
Radius |
Diameter |
of Lap |
of Lap |
A |
G |
½~1½ |
±0.03 (±0.8) |
Not less than 87.5% of nominal thick- ness |
±0.06 (±1.6) |
±0.25 (±6.4) |
±0.25 (±6.4) |
±0.03 (±0.8) |
±0.12 (±3.2) |
|
|
+0 |
|
-0.03 |
|
|
|
2~3½ |
(+0) |
+0 |
(-0.8) |
-0.03 |
|
|
|
(+0) |
4 |
|
(-0.8) |
|
|
|
|
|
|
5~8 |
+0.06 |
±0.25 (±6.4) |
+0 |
|
-0.03 |
-0.06 |
|
(+1.6) |
|
|
(-0.8) |
(+0) |
|
10~18 |
+0.09 |
±0.09 (±2.4) |
±0.38 (±9.6) |
±0.06 (±1.6) |
(-1.6) |
|
-0.03 |
|
+0 |
(+2.4) |
|
-0.06 |
(-0.8) |
|
|
20~24 |
+0.12 |
|
(+0) |
-0.03 |
|
(-1.6) |
(+3.2) |
|
|
(-0.8) |
|
|
GENERAL NOTE: All dimensions are in inches. Dimensions in parentheses are in millimeters for reference only. NOTES: (a) Out of roundness is the vector sum of plus and minus tolerance. (b) Fillet B radius is maximum. See the table on page 15. |