PTFE flange cover is a high-performance protective sleeve made of modified polytetrafluoroethylene (PTFE) fabric or solid PTFE sheet, customized to wrap pipeline flanges, expansion joints and valve connections. It acts as a leak containment barrier to prevent hazardous fluid, chemical or high-temperature medium leakage from flange gaskets, while offering full corrosion resistance and long service life.
Core Advantages
- Extreme Chemical Resistance
Inert to almost all acids, alkalis, solvents and corrosive industrial media; no swelling, cracking or degradation under strong chemical exposure.
- Wide Temperature Tolerance
Continuous operating temperature range from -200°C to +260°C, stable performance under high-temperature steam, hot oil and cryogenic pipeline conditions.
- Anti-Leak Safety Protection
Contains spilled liquid/gas once flange gasket fails, effectively avoiding workplace safety hazards, equipment corrosion and environmental pollution, widely required in chemical, petrochemical and pharmaceutical plants.
- Non-Stick & Low Friction Surface
PTFE surface repels viscous chemicals, easy to clean and maintain; no medium adhesion buildup on the cover surface.