PTFE/PFA Lined Pipe (Basic Type)

PTFE/PFA lined pipes are designed for the safe transportation of highly corrosive fluids in demanding industrial environments. By combining the excellent chemical resistance of fluoropolymer linings avec le mechanical strength of steel pipes, this piping system provides a reliable and long-lasting solution for industries handling aggressive chemicals.

These pipes are widely used in chemical processing, pharmaceutical manufacturing, electroplating, semiconductor production, and high-purity fluid systems, where corrosion resistance, cleanliness, and long service life are critical.

The inner lining is made from PTFE (Polytetrafluoroethylene) or PFA (Perfluoroalkoxy resin), both known for their exceptional chemical inertness and non-stick properties. The outer shell, typically constructed from carbon steel or stainless steel, ensures structural strength and pressure resistance.

Key Advantages of PTFE/PFA Lined Pipes

Exceptional Corrosion Resistance

The seamless PTFE or PFA lining is highly inert to almost all chemicals, including strong acids, strong alkalis, halogens, and aggressive organic solvents. This ensures safe and reliable transport of corrosive media while preventing internal pipe degradation and contamination.

Superior Lining Integrity and Leak Protection

Advanced molding technology ensures a seamless, bubble-free lining that is mechanically locked to the steel shell. The extended lining at the flange face covers the gasket sealing surface, creating an additional barrier that prevents corrosive fluids from contacting metal components.

Long Service Life and High Durability

The combination of a high-strength steel shell and chemically inert fluoropolymer lining significantly improves pipe durability. Compared with plastic or rubber-lined pipes, this design offers lower maintenance costs and reduced downtime.

Smooth Surface for Efficient Flow

Fluoropolymer linings provide an ultra-smooth, non-stick internal surface, reducing fluid adhesion, scaling, and pressure loss. This ensures consistent flow rates and simplifies cleaning, especially when transporting viscous fluids or slurry.

Wide Temperature Resistance

PTFE and PFA lined pipes maintain performance across a wide temperature range, from cryogenic conditions to high-temperature processing environments.

Suitable for Pressure and Vacuum Systems

The pipeline design supports both positive pressure and vacuum conditions, making it suitable for complex process systems such as filtration, distillation, and suction lines.

Applications typiques

Traitement chimique

Used for transporting corrosive raw materials, intermediates, and finished products in acid circulation lines, reactor feed systems, and solvent transfer pipelines.

Pharmaceutical and Biotechnology

Ideal for handling high-purity solvents, acids, and CIP cleaning fluids, ensuring product purity and preventing metal contamination.

Semiconductor and Electronics Manufacturing

Suitable for transporting ultra-pure chemicals, etchants, and stripping solutions used in wafer fabrication and PCB production.

Electroplating and Metal Surface Treatment

Widely used for circulating electroplating solutions, pickling acids, and anodizing electrolytes.

Chlor-Alkali Industry

Effective for handling wet chlorine gas, brine, hydrochloric acid, and caustic soda solutions.

Agrochemical and Fertilizer Production

Used in transporting corrosive intermediates such as sulfuric acid, phosphoric acid, and chloride-based chemicals.

Caractéristiques du produit

Lining Material Options

• PTFE (Polytetrafluoroethylene): Industry standard for broad chemical resistance up to 150°C.

• PFA (Perfluoroalkoxy Resin): Similar chemical resistance with better creep resistance and higher continuous working temperature (up to 180°C).

Outer Pipe Materials

• Carbon steel (painted or galvanized)

• Stainless steel (SS304 / SS316) for higher corrosion resistance and hygienic applications

Connection Type

Standard ANSI/ASME or DIN flange connections, ensuring secure sealing and easy integration with existing pipeline systems.

Custom Manufacturing Options

Available in various diameters, lengths, and fittings, including elbows, tees, reducers, and special pipeline components. Optional certifications such as FDA compliance for PFA lining and 3.1 material certificates are available upon request.