PTFE-Lined Valves: The Ultimate Choice for Corrosive Service

Handling aggressive, corrosive, or toxic media is one of the toughest challenges in industrial valve design. That’s where PTFE-lined valves offer a distinct advantage.

At FCT Valve, we provide a full range of PTFE-lined control and shut-off valves, specifically engineered to perform in chemical, pharmaceutical, pulp & paper, and wastewater applications, where metal components alone would fail.

🔹 What Are PTFE-Lined Valves?
PTFE-lined valves feature a corrosion-resistant polymer lining (typically PTFE, FEP, or PFA) applied to the internal surfaces of a metal valve body.

This lining protects the metal from chemical attack, while maintaining the strength and pressure rating of the steel structure.

🔹 Types of PTFE-Lined Valves Offered by FCT
Lined Ball Valves – For shut-off and switching of corrosive fluids
Lined Plug Valves – Quarter-turn, tight shut-off for harsh chemicals
Lined Butterfly Valves – Lightweight option for large-diameter pipelines
Lined Diaphragm Valves – Excellent for slurry or media with particles
Lined Check Valves – Prevents reverse flow in aggressive systems

✅ Advantages of PTFE-Lined Valves
🧪 Superior Corrosion Resistance Withstands acids, alkalis, solvents, and oxidizing agents
🔒 Bubble-Tight Sealing Excellent shut-off performance, even with aggressive media
⚙️ Reduced Maintenance Longer service life in demanding environments
🌡️ Thermal and Chemical Stability Operates in temperatures up to 200°C depending on lining type
🔄 Compatibility with Actuators Available with electric, pneumatic, or manual operation

🏭 Where Are PTFE-Lined Valves Used?
Chemical and petrochemical plants
Chlor-alkali and acid production
Pulp & paper bleaching lines
Wastewater neutralization systems
Pharmaceutical and biotech facilities