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Why Do Flanges Leak? 7 Causes & Field Repair SolutionsDiscover 7 root causes of flange leakage and practical field repair solutions. Prevent repeated leaks in industrial piping systems.1. IntroductionFlange leakage remains one of the most frequent and hazardous failures in industrial piping, pressur
Flange leaks can often be a nightmare for industrial operations, causing safety risks, environmental issues, and costly downtime. However, these leaks are rarely random. They usually stem from identifiable causes and can be avoided or fixed if you know what to look for.
An order for a threaded flange says only “1-inch BSP.” The replacement pipe is marked “1-inch NPT.” Matching nominal sizes do not make these connections interchangeable.
Two stainless steel flanges can share the same size, pressure class and raised-face designation. Their gasket-contact surfaces may still have different machining patterns or roughness.
Shangdian Flange provides concentric and eccentric reducers designed for reducing pipe diameters while maintaining flow efficiency. These stainless steel fittings are manufactured to meet GB/T 12459, ASME B16.9, and DIN standards, offering reliable performance in high-pressure and corrosive environments. Suitable for vertical and horizontal installations, reducers are widely used in chemical processing, marine systems, and water pipelines where space optimization and pressure balance are essential.
