The petroleum and chemical industries have characteristics such as flammability, explosiveness, toxicity, and strong corrosiveness. Therefore, once a leak occurs, it may not only cause unpredictable economic losses and environmental pollution, but more importantly, it may cause casualties. Mechanical seals are mainly used in various centrifugal pumps, plunger pumps, gear pumps, reaction kettles, distillation towers, compressors, and other equipment in such industries. These devices usually need to withstand high temperature, high pressure, and media containing impurities, so they need to have good wear resistance, corrosion resistance, and durability.
