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High performance butterfly valves have become indispensable fluid control equipment for modern industrial and municipal pipeline systems. Among various specifications, the high performance wafer butterfly valve stands out for its compact structure, low flow resistance and excellent sealing stability. Manufactured with standard CF8 stainless steel material, this SS butterfly valve perfectly solves the corrosion, aging and structural damage problems of ordinary cast iron valves in harsh working conditions, delivering long-lasting and zero-leakage pipeline protection.

Gate valve is essential linear flow control devices widely used in municipal water supply, drainage, fire protection, heating and industrial pipeline systems. According to stem structural design, gate valves are mainly divided into rising stem gate valve and non rising stem gate valve.

Under the long-term effects of pressure fluctuations, high temperatures, corrosive media, and particulate wastewater, butterfly valve may experience various malfunctions, including internal leakage, external leakage, jamming, abnormal noise, and actuator failure.

This article sorts out typical failures of concentric soft seal butterfly valves, triple eccentric metal seated butterfly valve, pneumatic butterfly valve and electric butterfly valve, analyzing root causes and offering targeted solving methods for on-site maintenance staff.