|
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THREADED, SLIP-ON, LAP JOINT AND BLIND FLANGES
----------------------------------------
| OUTSIDE DIAMETER* |
When O.D. is 24" or less |
¡À1/16" |
| When O.D. is over 24" |
¡À1/8" |
| INSIDE DIAMETER* |
Threaded |
Within limits on boring gauge |
| Slip-On, and Lap Joint 10" and smaller |
+1/32", -0" |
| 12" and larger |
+1/16", -0" |
| DIAMETER OF COUNTERBORE |
Same as for Inside Diameter |
|
| DIAMETER OF CONTACT FACE |
1/16" Raised Face |
¡À1/32" |
| 1/4" raised Face Tongue and Groove, or Male and Female |
¡À1/64" |
| OUTSIDE DIAMETER OF HUB* |
12" and smaller |
+3/32", - 1/16" |
| 14" and larger |
¡À1/8" |
| DRILLING |
Bolt Circle |
¡À1/16" |
| Bolt hole spacing |
¡À1/32" |
| ECCENTRICITY BOLT CIRCLE & FACING (with respect to Bore*) |
2 1/2" and smaller |
1/32" max. |
| 3" and larger |
1/16" max. |
| LENGTH THRU HUB* |
18" and smaller |
+1/8" -1/32" |
| 20" and larger |
+3/16" -1/16" |
|
| THICKNESS |
18" and smaller |
+ 1/8" -0" |
| 20" and larger |
+3/16" -0" | |
------------------------------------------------
WELDING NECK
FLANGES
------------------------------------------------
| OUTSIDE DIAMETER* |
When O.D. is 24" or less |
¡À1/16" |
| When O.D. is over 24" |
¡À1/8" |
| INSIDE DIAMETER* |
10¡± and smaller |
¡À1/32¡± |
| 12¡± through 18¡± |
¡À1/16¡± |
| 20¡± and larger |
+1/8¡± ¨C1/16¡± |
DIAMETER OF
CONTACT FACE |
1/16¡± Raised Face
|
¡À1/32¡± |
1/4¡± raised Face
Tongue and Groove,
or Male and Female |
¡À1/64¡± |
DIAMETER OF
HUB AT POINT
OF WELDING |
5¡± and smaller |
+3/32¡±, ¨C 1/32¡± |
| 6¡± and larger |
+5/32¡±, ¨C 1/32¡± |
WELDING BEVEL
STANDARDS |
See drawings |
|
DIAMETER
OF HUB
AT BASE* |
When Hub Base is
24¡± or less |
¡À1/16¡± |
When Hub Base is
over 24¡± |
¡À1/8" |
| DRILLING |
Bolt Circle |
¡À1/16" |
| Bolt hole spacing |
¡À1/32" |
| ECCENTRICITY BOLT CIRCLE & FACING (with respect to Bore*) |
2 1/2" and smaller |
1/32" max. |
| 3" and larger |
1/16" max. |
| LENGTH THRU HUB* |
10¡± and smaller |
¡À1/16¡± |
| 12¡± and larger |
¡À1/8¡± |
| THICKNESS |
18" and smaller |
+ 1/8" -0" |
| 20" and larger |
+3/16" -0" | |
