Product Overview Product use: This is our newly developed valve flange valve, mainly used in water plants, power plants, steel smelting, paper, chemicals, food and other drainage systems, particularly suitable as a way to regulate the flow of water pipe equipment use. Scope: flanged butterfly also widely used: chemical, petrochemical, metallurgy, medicine, food and other industries in SO2, steam, air, gas, ammonia, CO2 gas, oil, water, salt, lye, water, nitric acid , pipeline, hydrochloric acid, sulfuric acid, phosphoric acid and other media as a regulator and shutoff device.