Custom-Designed Lap Joint Flanges
Practices relative to lap-joint flanges, that experience has shown will result in a level of damage tolerance, leak-tightness integrity, and gasket replacement capability equivalent to the welding neck style, are as follows:
The recommended radial lap width is as shown in the following table:
|
Flange ID
|
Radial Lap Width1
|
|
(in)
|
(mm)
|
(in)
|
(mm)
|
|
ID£18
|
ID£457
|
1
|
25.4
|
|
18
|
457
|
1 ½
|
38.1
|
|
36
|
914
|
1 3/4
|
44.5
|
|
ID>60
|
ID >1524
|
2
|
50.8
|