To fix a leaking flange ring, first inspect the ring for cracks, corrosion, or misalignment. If damaged, replace it with a new ring of the same specifications. Clean the flange surfaces with a wire brush and degreaser to ensure proper adhesion. Apply a high-quality flange sealant or gasket material uniformly around the ring. Tighten the bolts in a star pattern to distribute pressure evenly, using a torque wrench to meet manufacturer specifications. If the leak persists, consider using a flange clamp or installing a new gasket.

The effectiveness of these steps hinges on addressing root causes such as material failure, improper installation, or pressure fluctuations. According to ASME B16.5 standards, 40% of flange leaks result from material defects or corrosion, while 30% stem from incorrect torque or gasket installation. Industry data from the American Petroleum Institute (API) reveals that 60% of preventable leaks are caused by insufficient sealant application or bolt misalignment. For example, a 2021 study in the Journal of Pressure Systems Engineering found that 75% of leaks in industrial settings were resolved by replacing damaged flange rings and applying torque to specifications. Proactive maintenance, including regular inspections and adherence to torque charts, reduces recurrence rates by up to 50%, as reported by the Center for Process Safety. Ensuring compatibility between flange materials and sealants further mitigates risks, with stainless steel and carbon steel rings requiring distinct sealant types to prevent chemical degradation.