Double Wall Stainless Steel Grease Duct

Ul1978 ul2221 limited lifetime warranty.

Double wall stainless steel grease duct.

Grease duct is ideal for use in kitchen ventilation applications where clearance to combustibles and temperature retention in the duct is not a factor. Ul listed requires no welding single wall reduced clearance. 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. Inner 6 through 36 0 035 thick outer 6 through 24 0 025 thick 26 through 36 0 035 thick inner diameter.

Outer jacket made of astm 304 stainless steel. The duct sections shall be constructed of an inner duct wall and an outer wall with insulation in between. 5uni coat double wall round duct and fittings polyvinyl chloride coated galvanized steel are available on special order. Not only has this patented ul 2221 classified product been tested for zero clearance to combustibles it eliminates the need for a fire rated chase with its 2 hour fire rating.

The inner duct wall shall be constructed of 036 inch thick 430 type stainless steel and be available in diameters 8 through 36. Factory built grease duct systems. All pipe models are ul 1978 grease duct rated to their relative clearance to combustibles single wall double wall air or blanket insulated. Psw grease duct is tested and listed to ul 1978.

Grease duct grease duct is etl listed single wall construction made from stainless steel. Our prefabricated double wall round grease ducts are designed and built for vertical runs and don t require field welding or secondary insulation. Product features etl listed to ul standard 1978 and ul standard 2221 grease duct enclosure assemblies duct sections are constructed of an inner wall and outer wall with insulation in between inner duct is single wall dw series and outer shell is stainless steel inner duct diameters range from 5 to 36. We offer you the best solution for any application.

Dwfl zc ul 2221 zero clearance fire rated grease duct. Double wall grease ducts are listed for a continuous internal temperature of 500 degrees f and intermittent temperatures of 2000 degrees f. Designed with a rigid 304 or 316 stainless steel flue that incorporates an innovative flanged design for easy assembly sealed with a high temperature silicone sealant. Inner liner made of high grade astm 316l stainless steel.

Grease duct integral fire rated chase. Duct diameters range from 5 to 36 with multiple lengths and accessories available. Grease duct systems are offered in multiple materials for a variety of applications improving product versatility and function. Ul1978 and double wall zero clearance.

Hoodmart 12 ductwork double wall grease duct accessories.