DWGD-RZ
Zero Clearance & Fire Resistive Rectangular Grease Duct
Zero Clearance and fire rated Grease Duct:
Provides 2-hour fire resistive shaft and zero clearance duct in a rectangular assembly.
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| Inner Material | Stainless Steel |
|---|---|
| Outer Jacket Material | Choices of stainless steel or aluminized steel |
| Insulation | 3'' of ceramic fiber insulation |
| Wall thickness | Inner liner made of 0.035" stainless steel - Dimensions of all sides totaling 24” or less = 0.025” thick |
| Sizes | Model DWGD-RZ Grease Duct is available in either square or rectangular configurations. The maximum allowable width to height ratio is 6 to 1, for instance 36” x 6”. Square duct is available in sizes from 6” x 6” to 36” x 36”. Rectangular duct is available in sizes from 6” x 8” to 27” x 48”. |
| Connection | Inner connection is a flange-to-flange bolted connection Supplied sealant is used on the flange to create a seal Blanket insulation and outer band complete the joint assembly Rectangular grease duct must be installed with a slope of 1/8” per foot of horizontal run if the length of the run is 75’ or less. If the length of the horizontal run exceeds 75’, it must be installed at a slope of ½”t |
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UL Listings (and ULC) |
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