Flu Duct Expansion Joints
Global-Flex Mfg expansion joints are elastomeric in both body and flange and are available in Neoprene, Hypalon, EPDM, Butyl, or flour-elastomer Viton. Thinner in overall gauge than pressure piping expansion joints to protect thin wall duct systems, standard circular expansion joints have integral duck and rubber flanges, drilled to order. The rectangular style also incorporates rubber flanges, utilizing square corners and special drilling. "Continuous corners" eliminate splices through the body of the expansion joint near the corners. The inherent flexibility of rubber provides long service life even in applications of high vibration or flutter.DOWNLOAD FLU DUCT EXPANSION SPEC SHEETCONTACT US TO PURCHASE
Style REJU, a U-joint without an arch, is designed for normal ducting movements. Metallic backing rings or bars are required. Typical retaining bars are made of 3/8" x 2" A-36 chamfered or rounded edge bar stock. Tube & Cover Neoprene, EPDM, Hypalon, Butyl, or Viton Reinforcement Synthetic fiber reinforcement pressure range 3 PSIG to 5 PSIG depending on number of plies.
Style REJW, a rounded arch type joint, is designed for increased axial movement capabilities without pre-extension or compression. Metallic backing rings or bars are required. Typical retaining bars are made of 3/8" x 2" A-36 chamfered or rounded edge bar stock.
Style REJV, a sharp arch type joint, is designed for large movement capabilities without pre-extension or compression. Metallic backing rings or bars are required. Typical retaining bars are made of 3/8" x 2" A-36 chamfered or rounded edge bar stock.
GFTC Expansion Joints are Non-Metallic Flue Duct Expansion Joints or flexible connectors, which when properly designed, provide stress relief for piping and ducting systems by absorbing thermal growth & shock, isolating mechanical vibration and allowing for misalignments.Flue duct expansion joints are custom engineered products designed to handle low-pressure (±5 psig) applications with temperatures from -100 F to +2000 deg. F. The expansion joints are manufactured using innovative non-metallic materials and designs.
Industrial applications can be separated into general categories based on the media composition (Air or Gas) and temperature. Global Flex application information 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. This information is only a guide and should be confirmed with a Global-Flex Engineer.
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