FABRIC AND DUCTING EXPANSION JOINTS

  • ABOUT
  • SPECIFICATIONS
  • CONFIGURATIONS
  • LINER MATERIALS
Flue Duct Expansion Joints

Style 8400 flue ducts are available in round, rectangular, or square configurations; as belt type (without flanges) or U-type (flanged); with virtually no size restrictions. Garlock also provides on-site vulcanizations for flue ducts that require splicing into position, due to obstructions or interferences that prevent continuous construction installations.

  • Max. Temperature: 400°F / 204°C
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  • Rectangular / Square Flue Ducts

    • Stanard face-to-face dimensions: typically 6in / 152 mm, 9in / 229 mm, or 12in / 305 mm
    • Contact Garlock for non-standard face-to-face dimensions and movement capabilities

    Round Flue Ducts

    • Supplied in any size, with or without flanges or arch
    • Variety of materials available: neoprene, chlorobutyl, fluoroeslastomer, nitrile, EPDM, CSM, FDA neoprene, FDA EPDM, or natural/gum rubber
    • Movement capabilities depend on expansion joint size and arch configuration

    Belt-Type Flue Ducts

    • Supplied in any size, without flanges, with or without an arch
    • Available in the same materials as round flue ducts
    • Movement capabilities depend on installation width and arch configuration
    • Supplied open-ended (wraparound) or continuous to fit over ducting
  • ABRA-LINE™: +180°F  (+80°C)
  • ABRA-SHIELD®: +300°F (+150°C)
  • Natural Rubber: +180°F (+80°C)
  • GUARDIAN® FEP: +400°F (+205°C)
  • FKM (Fluoroelastomer): +400°F (+205°C)
  • CSM: +250°F (+120°C)
  • SURE-TEC™ FDA EPDM +250°F (+120°C
  • EPDM/FDA EPDM: +300°F (+150°C)
  • HNBR (Hydrogenated Nitrile): +300°F (+150°C)
  • Nitrile/DETECTOMER® FDA Nitrile: +250°F (+120°C)
  • Chlorobutyl (Standard): +250°F (+120°C)
  • Neoprene/FDA Neoprene: +250°F (+120°C)
  •  
  • ABOUT
  • FEATURES AND BENEFITS
  • SPECIFICATIONS
  • APPLICATIONS
  • ADDITIONAL INFORMATION
Split expansion joint

Style 8420 Split™ is typically used in applications where small piping limits the use of flanged connections. An example of this includes vacuum pump inlets and outlets in pulp and paper applications. It is also used as a temporary repair for piping that has cracked. It can be provided in the split design or as a sleeved product. Adhesives kits are also available for easy installation.

  • Split design eliminates equipment disassembly, reducing costly downtime
  • Available in EPDM, nitrile and fluoroelastomer in sizes from 2in / 5cm to 24in / 61 cm
  • Can be customized for your application; contact Garlock with your specifications
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  • Pipe Openings: to 6in. / 150mm
  • Clamps Required: 4
  • Thickness - 2in / 50.8mm to 12in / 304.8mm ID: 0.25in / 6.4mm
  • Thickness - 14in / 355.6mm) to 24in / 609.6mm ID: 0.375in / 9.5mm
  • Max. Pressure: to 15psi / 1bar
  • Max. Vacuum: to 14in. Hg / 356 mm Hg
  • Max. Temperature (Std. Adhesive): 165°F / 74°C
  • Max. Temperature (VITON® Adhesive): 400°F / 204°C
  • Movement: Vibration only
  • Max. Lateral Misalignment: 0.5in / 12.7mm
  • Joint Width: 8in / 203.2mm to 12in / 304.8mm
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  • All types of vacuum pumps
  • Non-flanged piping
  • Small, irregular openings
  • Low-pressure and vacuum applications
  • Vacuum pump inlets and outlets in pulp and paper applications
  • Temporary repair for piping that has cracked
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  • Offered as split design or sleeved product
  • Adhesives kits are also available for easy installation
  • Clamps are not provided
  • ABOUT
  • FEATURES AND BENEFITS
  • SPECIFICATIONS
  • APPLICATIONS
  • LINER MATERIALS
  • ADDITIONAL INFORMATION
Low Pressure Applications Rubber Expansion Joint

This multi-convoluted, lightweight expansion joint is designed for low pressure applications that require significant amounts of movement, axially and/or laterally. Its low spring rates make it ideal for air handling, load cell, bin activators, vibrating bins, silos, and pellet/dough hopper applications.

    • Lightweight design installs easily and costs less to ship
    • Can be custom-designed for even greater movement capability
    • Choice of construction materials suitable for wide range of temperatures
    • Available in flanged or sleeve type design, up to 48in / 1219 mm ID

    NOTE: Flanged designs require retaining rings for an effective seal. Sleeve type requires clamps; the overall length of the expansion joint should include an additional 4in / 101.6 mm for clamping space.

  • Pressure

    • Without external reinforcing rings: up to 3 psi / 0.2 bar
    • With external reinforcing rings: up to 15 psi / 1.0 bar

    Vacuum

    • Without internal reinforcing rings: up to 3 in Hg / 75 mm Hg
    • With internal reinforcing rings: up to 15 in Hg / 381 mm Hg
    • Contact Garlock if higher vacuum or pressure ratings are required
  • Air handling
  • Load cell
  • Bin activators
  • Vibrating bins
  • Silos
  • Pellet/dough hoppers
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  • ABRA-LINE™: +180°F  (+80°C)
  • ABRA-SHIELD®: +300°F (+150°C)
  • Natural Rubber: +180°F (+80°C)
  • GUARDIAN® FEP: +400°F (+205°C)
  • FKM (Fluoroelastomer): +400°F (+205°C)
  • CSM: +250°F (+120°C)
  • SURE-TEC™ FDA EPDM +250°F (+120°C) 
  • EPDM/FDA EPDM: +300°F (+150°C)
  • HNBR (Hydrogenated Nitrile): +300°F (+150°C)
  • Nitrile/DETECTOMER® FDA Nitrile: +250°F (+120°C)
  • Chlorobutyl (Standard): +250°F (+120°C)
  • Neoprene/FDA Neoprene: +250°F (+120°C)

Movement Capabilities

  • 3/4in / 19 mm axial compression per convolution
  • 5/8in / 16 mm axial elongation per convolution
  • 5/8in / 16 mm lateral deflection per convolution
  • Movements are non-concurrent. Larger convolutions are available to provide more movement. Contact Garlock if above listed movements need to be exceeded.