PE630 to DN610 Steel — Flange Repair Clamp at a Road Junction

The leak was at a flanged transition where a PE630 main connects to DN610 steel — a joint type that fails at the bolts and the gasket face, and one that sits under a road junction where a long excavation is not an option.

The main stayed live throughout and the joint was sealed in one working window. Because the repair is a steel shell rather than a re-made flange, the road surface could be reinstated immediately.