Black Iron Grease Duct

Black iron welded grease duct custom fabricated for a kitchen hood.

Black iron grease duct.

It also measures the enclosure s effect on the grease duct. Double wall grease duct is etl listed to ul standard 1978 and ul standard 2221 grease duct enclosure assemblies. Captiveaire s single wall double wall grease duct are factory welded for ease of installation and superior performance to traditional site welded ductwork. In addition these requirements evaluate the effectiveness of the combination of the grease duct and the enclosure as a fi re rated system and as a thorough penetration fi restop system.

Grease duct is 16 gauge black iron or 18 gauge stainless steel no screws all seams welded liquidtite. Grease duct is ideal for use in kitchen ventilation applications where clearance to combustibles and temperature retention in the duct is not a factor. Welded black iron grease duct. Space restrictions required this exhaust duct to be rolled and welded looking much like the flat oval spiral ductwork airside manufactures.

Welded black iron grease ducts started with field wrapped welded black iron and transitioned to factory built where head room opened up advantages of factory built grease ducts vs. Whatever a project needs airside can help you meet your ductwork and metal fabrication needs. Welded black iron grease ducts provided 3d model to contractor to check for interference fit. Clearances are 18 from combustibles and 3 from gypsum.

At airside sheet metal fabricators inc. Welded black iron grease duct is designed and created to vent grease laden vapors from commercial cooking equipment to outside the building safely. Duct diameters range from 8 to 24 with multiple lengths and accessories available. Preferred design the rectangular on site welded grease duct remains the.

Clearance reduction is accomplished with fyrewrap insulation or fire chase. Tested and listed by intertek to standards astm e 2336 and ul 1978 per icc ac 101 2 a galvanized bolt together grease duct system eliminates conventional black iron welded system simplifies and speeds up field installation. System needs to be engineered. We take special pride in fabricating this type of ductwork knowing the safety requirements and hazards in venting these types of fumes.

Single wall grease duct is etl listed to ul standard 1978 grease ducts and can ulc s662. Ul 1978 listed easy to install sandwich design with no special tools required.