A Refractory lined expansion joint is an assembly used in a pipe line to allow it to expand and contract as climate conditions move from hot to cold and helps to ensure that the system remains functional. The refractory-lining can be vibra cast insulation with anchors, abrasion resistant refractory in hex mesh, gunned insulating refractory, or poured insulating refractory. Refractory lined expansion joints can be hinged, in-line pressure balanced, gimbal, tied-universal depending on the temperature, pressure, movement and flow media conditions. alt=Refractory Lined Expansion Joint, Expansion Joint with Refractory Lining - U.S. Bellows, Inc. Refractory lined

Expansion joint An expansion joint, or movement joint, is an assembly designed to hold parts together while safely absorbing temperature-induced expansion and contraction of building materials, and vibration, or to allow movement due to ground settlement or seis ...

s are used in extremely high temperature and high pressure applications and are designed to withstand extreme environments. The

Refractory In materials science, a refractory material or refractory is a material that is resistant to decomposition by heat, pressure, or chemical attack, and retains strength and form at high temperatures. Refractories are polycrystalline, polyphase, ...

lining within the metallic

bellows functions to reduce the pipe wall temperature by 300˚F to 450˚F, depending upon the thickness of the refractory lining. The lining also helps to withstand the abrasive material from the catalyst in FCCU applications.

Applications

Fluid catalytic cracking Fluid Catalytic Cracking (FCC) is the conversion process used in petroleum refineries to convert the high-boiling point, high-molecular weight hydrocarbon fractions of petroleum (crude oils) into gasoline, olefinic gases, and other petroleum prod ...

Units (FCCU) * Furnaces * Hot gas turbines * Styrene plants * Fluidized bed boilers * Kilns * Power recovery trains * Thermal oxidizers

References

{{DEFAULTSORT:Refractory Lined Expansion Joint Structural connectors