NOTES

1. Thickness tolerance equals +0.79㎜, －0.
2. Tolerances for gaskets of nominal size 1/2″inch through 24 inches : OD tolerance equals +1.59㎜, －0 : ID tolerance equals +1.59㎜, －0.
3. There are no 400－pound flanges in size 1/2″inch to 3inchs(use 600 pound), nor 900 pound flanges in size 1/2″inch to 2 1/2inches(use 1500 pound). Also, there are no 2500 pound flanges larger than 12 inches.
4. Tolerances for gaskets of nominal size 26 inches through 60 inches : OD tolerance equals +3.175㎜, －0 : ODtolerance equals +3.175㎜, －0 : ID tolerance equals +3.175㎜, －0.