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A Refractory lined expansion joint is an assembly used in a pipe line to allow it to expand and contract〔(Expansion Joints ) Glossary of Terms, (retrieved 30 October 2010)〕 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.〔(U.S. Bellows ) Refractory Lined Expansion Joints (retrieved February 2012)〕 Refractory lined Expansion joints are used in extremely high temperature and high pressure applications and are designed to withstand extreme environments. The Refractory lining within the metallic Expansion joint bellows functions to reduce the pipe wall temperature by 300˚F to 450˚F, depending upon the thickness of the refractory lining.〔(Refractory Lined Expansion Joints ) U.S. Bellows, Inc., (retrieved 30 October 2010)〕 The lining also helps to withstand the abrasive material from the catalyst in FCCU applications.〔(Key Maintenance Tips for Critical Expansion Joint Applications ) Touch Oil and Gas, (retrieved 30 October 2010)〕 == Applications == * Fluid catalytic cracking Units (FCCU) * Furnaces * Hot gas turbines * Styrene plants * Fluidized bed boilers * Kilns * Power recovery trains * Thermal oxidizers 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Refractory lined expansion joint」の詳細全文を読む スポンサード リンク
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