Double Wall Insulated Grease Duct

Double wall grease duct is etl listed to ul standard 1978 and ul standard 2221 grease duct enclosure assemblies.

Double wall insulated grease duct.

Zero clearance grease duct models z3 z4 are additionally ul 2221 rated to zero clearance to combustibles and have an integral 2 hour fire rated enclosure not requiring a separate fire rated shaft. Double wall kitchen exhaust vent 2 ceramic insulated metal fab grease duct products are manufactured in a strictly controlled environment that enhances product precision reliability and safety. Grease duct systems for commercial kitchen s cooking areas. The inner duct wall shall be constructed of 036 inch thick 430 type stainless steel and be.

Ul1978 ul2221 limited lifetime warranty. Duct requires no on site welding and is leak tested at the factory for quality assurance. Conical kl silicone and gasket free joining push fit systems. Factory built grease duct systems.

The duct sections shall be constructed of an inner duct wall and an outer wall with insulation in between. Models ps and ips are double wall modular positive pressure venting systems features benefits. Double wall grease duct. Double wall duct and fittings can reduce radiated noise by 25 db or more compared with fiberglass duct board and by 30 db or more com pared with insulated flexible duct.

Ul1978 and double wall zero clearance. Captiveaire s single wall double wall grease duct are factory welded for ease of installation and superior performance to traditional site welded ductwork. Factory built for high quality durability ease of installation and long life. Ul listed requires no welding single wall reduced clearance.

Insulated rectangular ducts from spiral pipe of texas are available with the following transverse connector options. All pipe models are ul 1978 grease duct rated to their relative clearance to combustibles single wall double wall air or blanket insulated. Double wall factory built grease duct is ideal for use in applications where reduced clearance or zero inch clearance to combustibles is needed. Single wall grease duct is etl listed to ul standard 1978 grease ducts and can ulc s662.

Stainless steel cylindrical construction for superior strength at much higher temperatures versus rectangular carbon steel field fabricated systems. Double wall grease ducts are listed for a continuous internal temperature of 500 degrees f and intermittent temperatures of 2000 degrees f. S drive internally lined rectangular duct only t 1 drive slips with either t 6 hemmed s slips t 11 standing s or t 13 standing s internally lined duct only not recommended for double wall. Our double wall duct and fittings also control radiated noise better than similar sizes and shapes of externally insulated sheet metal duct.