A 110 mm PVC flange on a brine line starts weeping three weeks after commissioning. The bolts feel tight, the pipe is sound, and the gasket matched the size on the drawing. In mos...
View MoreWhen a plastic flange weeps at the bolt circle, the flange body is usually the last component to blame. On most PPH, PPN and PVDF lines the leak starts with the gasket, the bolt l...
View MoreA shutdown crew at a chemical plant had one job left before restart: replace a leaking gasket on a valve twelve metres inside a fully welded PPH line. Cutting the pipe meant a new...
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