PTFE (Polytetrafluoroethylene) expansion joints are used in piping systems to absorb thermal expansion, vibration, and misalignment while maintaining a leak-tight seal. These joints are commonly used in industries where corrosion resistance, high temperatures, and chemical compatibility are critical, such as chemical processing, pharmaceuticals, and food manufacturing.

RINA SERVICES likely offers certification, testing, and inspection services for PTFE expansion joints to ensure they meet industry standards and regulatory requirements. This could involve verifying the material composition, design, manufacturing processes, and performance characteristics of the expansion joints to ensure they are suitable for their intended applications and comply with relevant standards and regulations, such as ASME, ASTM, and ISO standards.