Butterfly Valves: Butterfly valves are widely used in high-temperature melting processes, especially in metallurgy and metallurgical waste gas treatment systems, due to their high-temperature resistance. For example, high-temperature butterfly valves are used in blast furnaces and aluminum plants.

Diaphragm Valves: Used in metallurgical wastewater treatment systems to control the flow of wastewater, ensuring that the treated water meets environmental standards.

Ball Valves: Corrosion-resistant and high-temperature ball valves are also used in metallurgical wastewater recovery and transportation, ensuring a tight seal for hazardous substances.