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    Double wall stainless steel exhaust systems

    Chimneys made of stainless steel with high quality insulation material, available in different designs, materials and colors.

    DWGD-ZC

    DWGD-ZC Zero Clearance Grease Duct

    System features

    Specifications

    Description

    Zero Clearance and fire rated Grease Duct double wall system

     

    Wall thickness

    Inner Liner per UL-1978/-2221 Listing 
    Outer Jacket 0.025" (diameters 6 - 24 inch)
    Outer Jacket 0.035" (diameters 26 - 36 inch)

    Inner diameter

    5-36 inch

    Insulation

    3.25" thick compressed ceramic fiber 

    Connection

    Vee band connection 

    Locking band

    Attached to each part

    Main features

    • Leak proof high-pressure joints
    • Cut length available for maximum field flexibility
    • Smooth flow and known resistance for perfected factory pressure calculations
    • Zero clearance and 2-hour fire rated so it eliminates the requirements for an additional fire rated shaft

      Applications

      Stainless steel and factory insulated zero clearance and fire rated duct assembly for Kitchen Ventilation Systems and Special Gas Vent. Eliminates the need for fire dampers in HVAC ducts, laundry, and fume venting applications. 

      UL Listings (and ULC)

      UL-2221 Standard
      Fire Resistive Grease Duct Enclosure Assemblies

       

      UL-1978 Standard
      Grease Duct
      (ULC-S662 Standard for Factory-Built Grease Duct)

       

      90'' W.C.
      Pressure Listing for all Applications

       

       

      25 years warranty!