Lap joint stub ends shall be used only where shown in the individual Line Class; they shall have the same facing as specified for flanges in the applicable Line Class.
I. BOLTING
1. Bolt lengths shall be in accordance with the applicable piping code.
2. Machine bolt length shall be measured from the bearing surface of the head to the extreme point.
3. Stud bolt length measurement shall be based on the effective thread length.
4. Bolt length shall be specified in 1/2 inch increments.
5. Bolt tensioners shall be used on bolts of 1.5 inch diameter and larger. The length of these bolts shall be provided one nut thickness longer than normal.
J. FLANGE FINISH
1. Unless otherwise specified in the item code purchase descriptions, flange finish shall be in accordance ASME B16.5 or ASME B16.47.
K