AWWA Class F Ring and Blind Flanges

NOTES:
1. Ring flanges available overbored or counterbored per customer specification.
2. Bolt holes shall be drilled 1/8th inch larger in diameter than the nominal diameter of the bolt.
3. Drilling same as ANSI/ASME B16.1 250 lb and B16.5 300 lb pattern.
4. Flanges available overdrilled to accommodate insulators.