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PFTE/PFA Lined Valves
Fleyenda supplies a range of PTFE/PFA/FEP lined valves designed for superior corrosion resistance in demanding industries such as chemical processing, mining, fertilizer industry and waste water treatment.Combining the strength of metal valve bodies with the chemical resistance of PTFE and PFA linings, our valves provide reliable sealing, extended service life, and stable performance when handling aggressive acids, alkalis, solvents, and ultra-pure media.
FLEYENDA SOLUTIONS FOR
PTFE/PFA lined valves are widely used in copper, nickel, lithium, and rare metal extraction processes where strong acids and slurry media are involved. In hydrometallurgical systems, these valves resist acid corrosion, scaling, and chemical erosion while ensuring stable flow control. They help extend service life, minimize downtime, and maintain reliability in harsh mining environments.
The fertilizer industry produces chemical fertilizers such as phosphate, nitrogen, and compound fertilizers through complex chemical reactions involving strong acids, alkalis, and corrosive gases. PTFE/PFA lined valves are commonly applied in acid transfer, chemical dosing, reaction systems, and wastewater treatment processes. Their anti-corrosion lining effectively isolates aggressive chemicals from metal surfaces, helping reduce equipment damage, maintenance costs, and unplanned downtime while improving overall process safety and reliability.
Petrochemical plants require valves capable of handling corrosive chemicals, hydrocarbons, and high-temperature process fluids. PTFE/PFA lined valves offer strong resistance to chemical attack and permeation, making them suitable for acid treatment systems, chemical injection processes, and refinery utility pipelines where operational reliability is critical.
Lined Ball Valve
PTFE lined ball valves are the most widely used type for corrosive fluid handling thanks to their full-port design, low flow resistance, and bubble-tight shut-off performance. Compared with gate or globe valves, they are better suited for fast on/off operation and require lower operating torque. They are commonly used in sulfuric acid transfer systems, fertilizer production lines, and chemical dosing applications, where they help prevent leakage, reduce corrosion damage, and maintain safe process control.
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Lined Butterfly Valve
PTFE lined butterfly valves feature a lightweight structure, compact installation size, and excellent cost efficiency in large-diameter pipelines. Compared with many other valve types, they are more suitable for large flow applications with limited installation space. In wastewater treatment plants and petrochemical utility systems, they provide reliable flow regulation for corrosive media while reducing pressure loss and actuator load.
Lined Diaphragm Valve
PTFE lined diaphragm valves are known for their zero-leakage sealing structure and complete isolation between the media and valve operating components. This makes them cleaner and safer than conventional valve designs in highly corrosive process environments. They are widely used in chemical processing and metallurgy applications, where they help safely handle aggressive acids and chemical solutions while reducing contamination and maintenance risks.
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Lined PlugValve
PTFE lined plug valves are especially suitable for handling viscous, abrasive, and slurry media due to their durable sealing structure and simple flow path. Compared with standard shut-off valves, they perform more reliably in harsh operating environments with solids or scaling media. They are commonly applied in mining slurry transport and hydrometallurgical processing systems, helping maintain stable shut-off performance while resisting wear and chemical attack.





