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Material Selection for Chemical Valves
2019-02-19
Corrosion has long been one of the most challenging threats to chemical equipment—carelessness can lead to minor damage at best, or even catastrophic accidents and disasters in severe cases. According to statistics, approximately 60% of chemical equipment failures are caused by corrosion. Therefore, when selecting chemical valves, it’s crucial to prioritize the scientific choice of materials. Unfortunately, there’s a common misconception that stainless steel is a "universal material," leading some to automatically opt for stainless steel valves regardless of the medium or environmental conditions—a practice that can be extremely risky. Below, we’ll discuss key considerations for material selection when dealing with several commonly used chemical media, starting with sulfuric acid, which, as a highly corrosive substance, is an essential industrial raw material with incredibly broad applications. However, its corrosivity varies significantly depending on concentration and temperature.
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