Double Wall Stainless Steel Grease Duct

Ul1978 and double wall zero clearance.

Double wall stainless steel grease duct.

Grease duct integral fire rated chase. We offer you the best solution for any application. Grease duct systems are offered in multiple materials for a variety of applications improving product versatility and function. Outer jacket made of astm 304 stainless steel.

The inner duct wall shall be constructed of 036 inch thick 430 type stainless steel and be available in diameters 8 through 36. Double wall stainless steel exhaust systems chimneys made of stainless steel with high quality insulation material available in different designs materials and colors. Double wall grease ducts are listed for a continuous internal temperature of 500 degrees f and intermittent temperatures of 2000 degrees f. Duct diameters range from 5 to 36 with multiple lengths and accessories available.

All pipe models are ul 1978 grease duct rated to their relative clearance to combustibles single wall double wall air or blanket insulated. 5uni coat double wall round duct and fittings polyvinyl chloride coated galvanized steel are available on special order. Grease duct is ideal for use in kitchen ventilation applications where clearance to combustibles and temperature retention in the duct is not a factor. 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.

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. 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. 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. Grease duct grease duct is etl listed single wall construction made from stainless steel.

Ul1978 ul2221 limited lifetime warranty. Hoodmart 12 ductwork double wall grease duct accessories. Dwfl zc ul 2221 zero clearance fire rated grease duct. Inner liner made of high grade astm 316l 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. Grease duct systems especially designed for pizza ovens. The duct sections shall be constructed of an inner duct wall and an outer wall with insulation in between. 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.

Psw grease duct is tested and listed to ul 1978.