Notes:
- Ovality, or out-of-roundness of OD, must lie within specified tolerances.
- To convert inches to millimeters, multiply by 25.4.
- *A is the gasket seating surface, see Sec. 3.4.
- +C diameters are average values. Ovality of C diameter must lie within OD tolerances.
- ++T is the minimum standard wall thickness that should be grooved. Tolerances are to conform to ANSI/AWWA C151/A21.51.
