DBB ball valve (double plug and double discharge ball valve) is designed to replace the complex connection of multiple valves in the traditional pipeline. Reduce the leakage points in the system and realize the discharge quickly. The installation space is saved to the greatest extent. The double plug and double discharge ball valve simplifies the installation procedure. The products are widely used in hydraulic system pipelines of electric power, petrochemical industry, metallurgy, ocean, petroleum, natural gas, gas, pharmaceutical and other industries.