Industrial applications can be separated into general categories based on the media composition (air or gas) and temperature. The following section is designed to aid in the selection of the appropriate expansion joint for the specific application range. All plants are different, therefore, the service locations and temperatures may vary.

Ambient Air Services

Ambient temperature clean air without particulate or chemicals to damage the flexible element. Expansion Joint is used frequently for vibration and sound attenuation from fan equipment.

Hot Air Services

Clean air, after coming into contact with hot flue gases at the air pre-heater where temperatures are elevated with minimal particulate and or gas carryover. Expansion joint will see thermal movements and vibration. Elevated temperatures require a composite flexible element and a flow liner.

Low to Moderate Temperature Flue Gas Services

Flue gas which has passed through an air pre-heater and dust collector to reduce the temperature and particulate level.Flue gas may cycle near the dew point where condensation can occur and chemicals are present. Expansion joint may see thermal movement vibration and chemical attack.

Hot Flue Gas Services

Flue gas directly after combustion stage at elevated temperatures with possible particulate present. Expansion joint is used for possible large thermal movements at elevated temperatures.

Therma-Flex high temperature composite flat belt style with setback frames, cavity pillow and flow liners are suggested. The standard "Z" frame design with telescoping flow liners (ZZWCP1000FPRP shown) or "J" frame with shop liner are two designs used in these applications.