Stainless steel duplex steel high-pressure forged steel flange ball valve is a high-quality valve with excellent high temperature resistance, sulfur resistance, and compliance with national and American standards. It is widely used in industries such as chemical, petroleum, and natural gas to control fluid flow and pressure. This ball valve is made of stainless steel duplex steel material, which has high strength, corrosion resistance, and wear resistance. Its sealing surface has undergone special treatment to ensure good sealing effect and prevent leakage. Meanwhile, the ball valve also has the advantages of simple structure, convenient installation, and easy maintenance. Model size comparison table: |Model | nominal diameter (DN) | working pressure (MPa) | applicable temperature range (℃) | connection method| |-- | -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --| |DQ41F | 15-150 | 1.6 | -29-300 | flange| |DQ341F | 25-300 | 2.5 | -29-300 | flange| |DQ61F | 40-400 | 4.0 | -29-300 | flange| |DQ941F | 50-600 | 6.4 | -29-300 | flange| |DQ641F | 80-900 | 10.0 | -29-300 | flange| The above model dimensions are for reference only, and the specific selection should be determined based on actual working conditions and requirements.