1. Water supply and drainage system

Butterfly valves are key equipment in the urban water supply and drainage network. In the water supply system, butterfly valves are used to control the flow of water, regulate the water pressure and volume in various areas, and ensure a stable supply of residential and industrial water. In the drainage system, butterfly valves can be installed at locations such as sewage pumping stations, sewage treatment plants, and rainwater discharge pipelines to achieve control over the discharge of sewage and rainwater. The fast opening and closing characteristics of butterfly valves can quickly cut off water flow in emergency situations, preventing disasters such as sewage backflow or rainwater flooding. Its excellent sealing performance and corrosion resistance can adapt to the complex water quality environment in the water supply and drainage system, ensuring long-term stable operation.

2. Petroleum and chemical industries

The production process of the petroleum and chemical industry involves various flammable, explosive, toxic, harmful, and highly corrosive media, and the performance requirements for valves are extremely strict. Butterfly valves have been widely used in the petrochemical industry due to their high temperature resistance, high pressure resistance, corrosion resistance, and good sealing performance. In the process of petroleum refining, butterfly valves are used to control the transportation and flow regulation of crude oil, refined oil, and various intermediate products; In chemical production, butterfly valves can be used in various chemical reaction devices, storage tanks, and pipeline systems to achieve precise control of chemical raw materials, products, and reaction media. For example, in ethylene production facilities, butterfly valves are used to control the flow of key media such as cracking gas, ethylene, and propylene; Fluorine lined butterfly valves can effectively resist the corrosion of corrosive media such as sulfuric acid and hydrochloric acid in pipelines, ensuring the safety and reliability of the production process.

3. Power industry

The application of butterfly valves is indispensable for thermal power generation, hydropower generation, and nuclear power plants in the power industry. In thermal power plants, butterfly valves are used to control the flow and on/off of boiler feedwater, steam, and circulating water systems. For example, in the condenser circulating water system of a steam turbine, large-diameter butterfly valves are used to regulate the flow of circulating water, ensure the normal operation of the condenser, and improve the efficiency of the steam turbine. In hydroelectric power plants, butterfly valves are installed on the inlet pipes of turbines as main valves to control the entry and cutoff of water flow, ensuring the safe and stable operation of turbines. In nuclear power plants, butterfly valves are also used in key parts such as cooling systems and nuclear island auxiliary systems, and their reliability and sealing directly affect the safe operation of nuclear power plants.

4. Food and pharmaceutical industries

In the food and pharmaceutical industries, there are standard requirements for hygiene in the production process. Sanitary grade butterfly valves have emerged as an ideal choice to meet the needs of these industries. Sanitary grade butterfly valves are usually made of high-quality stainless steel materials, such as 316L stainless steel, which has excellent corrosion resistance and surface smoothness, can effectively reduce the adhesion of dirt and bacteria, and is easy to clean and disinfect. Its dead zone free design ensures that there is no fluid residue in the pipeline, avoiding the risk of bacterial growth and cross contamination, and complying with international health standards such as GMP (Good Manufacturing Practice) and FDA (Food and Drug Administration). In the process of food processing, sanitary butterfly valves are used to control the transportation of various food raw materials, semi-finished products, and finished products, such as milk, beverages, syrup, etc; In the pharmaceutical industry, sanitary butterfly valves are widely used in the preparation, transportation, and aseptic filling of drug solutions, providing reliable technical support for ensuring the quality and safety of food and drugs.