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Refractory Lined Expansion Joints

Refractory lined expansion joints are typically used in Fluid Catalytic Cracking Units (FCCU), furnaces, hot gas turbines, styrene plants, fluidized bed boilers, kilns, power recovery trains, and thermal oxidizers. For hot applications (up to 1400°F), the bellows are packed with KO wool and lined with insulating refractory. Refractory lining can reduce the pipe wall temperature to 300-450°F and also protect the bellows from abrasion caused by the flow of abrasive particles.

U.S. Bellows, Inc. Designed and Fabricated Hinged and Universal Expansion Joints with Refractory Lining
63″ In-Line Pressure Balanced Expansion Joint with Refractory Lining
80” Refractory Lined Tied Universal Expansion Joint
76' Single Expansion Joints Designed with 4" Thick Refractory Lining for Flue Gas Service
Expansion joint lined with 5 inches of 17ec refractory
Universal Expansion Joint with 5" Thick Refractory Lining for a Styrene Plant in Thailand

Refractory Lined Expansion Joints Extended Description

Depending on the temperature, pressure, movement and flow media conditions, refractory-lined pipe expansion joints can be hinged, in-line pressure-balanced, gimbal, tied-universal and can also include pantographic linkage. For hot applications (up to 1400°F), the bellows are packed with KO wool and lined with insulating refractory. The refractory-lining allows for the use of carbon steel pipe instead of 300 series stainless steel. It can reduce the pipe wall temperature to between 300-450°F and also protect the bellows from abrasion caused by the flow of abrasive particles. Refractory-lined expansion joints are used in Fluid Catalytic Cracking Units (FCCU), furnaces, hot gas turbines, styrene plants, fluidized bed boilers, kilns, power recovery trains, and thermal oxidizers. Refractory-lined expansion joints are custom designed for each application due to the extreme environments.