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Parts and Components&Informatization Products
A PTFE-lined steel expansion joint is a flexible piping component designed to absorb thermal movement, vibration, and misalignment. It typically features a carbon steel outer shell reinforced with a corrosion-resistant fluoropolymer liner, manufactured in compliance with industry standards such as EJMA for dimensional stability and pressure ratings.
Installations must strictly adhere to specified torque limits to prevent liner extrusion during flange bolting. Regular inspections are required to detect external corrosion or internal abrasion signs. Components should be replaced periodically based on cycle fatigue analysis to avoid catastrophic failure under extreme pressure fluctuations.