Intergranular Corrosion: What It Is and How to Prevent It

Learn what intergranular corrosion is, why it occurs along metal grain boundaries, and how it can weaken stainless steel valves used in chemical, high-temperature, oil and gas, water treatment, and industrial process systems. This guide explains stainless steel sensitization, chromium carbide precipitation, weld heat-affected zones, low-carbon stainless steel, stabilized grades, nickel alloys, passivation, coating limitations, inspection methods, and material selection practices for reducing intergranular corrosion risk in industrial valves.
How Coatings Help Prevent Scaling on Gate Valves

Learn how scaling affects gate valve operation in water treatment, industrial water, chemical, oil and gas, and mineral-rich pipeline systems. This guide explains how scale deposits can cause sticking, incomplete opening or closing, increased torque, leakage risk, and maintenance problems, while covering coating options such as epoxy, ceramic, and fluoropolymer coatings, fluid-chemistry control, inspection routines, cleaning practices, coating limitations, and key selection factors for coated gate valves.