Double Wall Stainless Steel Grease Duct

Ul listed requires no welding single wall reduced clearance.

Double wall stainless steel grease duct.

Dwfl zc ul 2221 zero clearance fire rated grease duct. All pipe models are ul 1978 grease duct rated to their relative clearance to combustibles single wall double wall air or blanket insulated. Grease duct systems are offered in multiple materials for a variety of applications improving product versatility and function. Grease duct integral fire rated chase.

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. 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. We offer you the best solution for any application. Duct diameters range from 5 to 36 with multiple lengths and accessories available.

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. The inner duct wall shall be constructed of 036 inch thick 430 type stainless steel and be available in diameters 8 through 36. Outer jacket made of astm 304 stainless steel. 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.

Psw grease duct is tested and listed to ul 1978. The duct sections shall be constructed of an inner duct wall and an outer wall with insulation in between. Grease duct grease duct is etl listed single wall construction made from stainless steel. Double wall grease ducts are listed for a continuous internal temperature of 500 degrees f and intermittent temperatures of 2000 degrees f.

4 double wall round duct and fittings are also available in carbon steel paintable galvanized steel types 304 and 316 stainless steel and type 3003 h14 aluminum. Grease duct is ideal for use in kitchen ventilation applications where clearance to combustibles and temperature retention in the duct is not a factor. Inner liner made of high grade astm 316l stainless steel. Inner 6 through 36 0 035 thick outer 6 through 24 0 025 thick 26 through 36 0 035 thick inner diameter.

5uni coat double wall round duct and fittings polyvinyl chloride coated galvanized steel are available on special order. Ul1978 and double wall zero clearance. Factory built grease duct systems. Hoodmart 12 ductwork double wall grease duct accessories.

Ul1978 ul2221 limited lifetime warranty.