🔍 Key Concepts

• Material compatibility with high-pressure, high-temperature steam • Difference between metallic and non-metallic gaskets • How gasket construction (e.g., spiral wound) handles thermal expansion and pressure

💭 Think About

• Which of these materials would maintain its sealing ability under very high temperature and high-pressure steam without softening, melting, or extruding? • Which gasket type is commonly found on boiler steam drum flanges, superheater outlets, and other high-pressure steam lines on ships? • How does a combination of metal and filler compare to rubber, neoprene, or plastic when exposed to superheated steam?

✅ Before You Answer

• Eliminate any material that would degrade, burn, or lose strength in very hot, high-pressure steam. • Consider which gasket is standard practice for boiler and steam turbine high-pressure flanges in marine service. • Check which option is specifically designed for high-pressure, high-temperature flange joints, not just general-purpose sealing.