Non-Metallic Flue Duct Expansion Joints
Altantech Distribution, Inc. offers flue duct expansion joints to lower life cycle costs in hot air and gas handling applications. These three models by JM Clipper are used in dry service primarily for their resistance to high temperatures. They feature a composite belt design consisting of an inside layer of aluminized fiberglass cloth, followed by a layer of thermal insulation which is covered by a layer of untreated fiberglass cloth. Next is the gas and vapor seal outer belt, a fiberglass cloth reinforced EPDM elastomer on the LX-501 and a fluoropolymer coated fiberglass cloth, with a PTFE laminate, on the LX-801 and LX-1001. Finally, the unique properties of the aluminized fiberglass cloth inner liner are utilized at the metal flanges by wrapping the liner around the edge of the composite belt and under the clamp bar. This design feature provides both thermal and physical protection to the belt, assuring longer life. In each case, the outer belt provides gas sealing and chemical resistance for the temperature limits indicated.
Model LX-501
- Excellent chemical resistance
- Operating temperature to 500° F
Model LX-801
- Tremendous temperature and acid resistance
- Excellent for high temperature service, such as turbine exhaust and economizer/air heater applications up to 800° F
Model LX-1001
- Specially-designed insulation insert added in the setback section
- Operating temperature to 1000°, for dealing with very hot, dry gas
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