Ultra-pure PFA-lined ball valve

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The ultra-pure PFA-lined ball valve is a high-performance corrosion-resistant valve. The following is an introduction to it: Structural principle – The ultra-pure PFA-lined ball valve uses a sphere with a circular opening as the closing element; this sphere rotates around the center line of the valve body along with the valve stem, thereby enabling the valve to be opened and closed. Both the interior cavity of the valve body and the ball are manufactured using high-pressure injection molding, lined with ultra-pure soluble polytetrafluoroethylene (PFA). Features – Excellent chemical stability: PFA material can resist the erosion of acids, bases, salts, alcohols, and ketone solutions of almost any concentration, except when it reacts with substances such as fluorine elements, molten alkalis, or ClF₃ under high-temperature conditions. - Good heat stability: PFA resin possesses exceptional heat stability, with an actual operating temperature of up to 260°C; however, it is recommended that the long-term usage temperature not exceed 180°C. - Pure fluid assurance: Ultra-pure PFA is colorless and transparent, free of additives and pigments, and possesses high chemical stability, ensuring no organic substances or metal ion contamination during fluid transfer. - Excellent mechanical properties: PFA resin maintains excellent tensile strength, resistance to elongation, and bending modulus even at high temperatures, and its viscoelastic properties confer on it good mechanical characteristics. - Low operating torque: The alkanic molecular structure of PFA resin renders its surface extremely smooth, thereby significantly reducing the operating torque required to open and close the valve. Application areas – Chemical industry: Used in pipeline systems involving various corrosive media such as strong acids and strong bases, for the transportation and control of substances like sulfuric acid, hydrochloric acid, and sodium hydroxide. - Oil industry: Used in oil refining, petrochemical processing, and other areas to handle crude oil, petroleum products, and various chemical agents that contain corrosive substances. - Metallurgical industry: Used in processes such as hydrometallurgy to transport and control corrosive media such as leachates and electrolytes. - Pharmaceutical industry: In the pharmaceutical production process, it is used to transport various highly pure corrosive liquids and solvents, thereby ensuring the purity and quality of the drug manufacturing process.