Duravent zero clearance ul 2221 superior pre fabricated grease duct design provides an ideal solution.
Zero clearance grease duct wrap.
It is third party certified to astm e2336 grease duct test standard and iso 6944 air duct test standard.
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.
Installed as a two layer system fyrewrap elite 1 5 complies with the international mechanical code imc and uniform mechanical code umc.
Durastack pro installation instructions grease duct pdf 1 6mb.
Zero clearance grease duct ul 2221 dis3z pdf 1 6mb ul 1978 durastack pro grease duct pdf 3 9mb videos.
3m fire barrier duct wrap 615 is the only fire rated duct wrap product you ll need to help protect grease and air ducts.
Includes a 30 minute 2000 f grease fire test.
Grease duct may be located at clearance to combustibles in accordance with table 1.
Grease duct zero clearance single wall factory built grease duct for duravent factory built grease ducts listed to ul 1978 install at a duct slope not less than.
All pipe models are ul 1978 grease duct rated to their relative clearance to combustibles single wall double wall air or blanket insulated.
Single wall dcl or double wall zero clearance.
An integrated and modular grease duct with insulation and an outer wall that eliminates the need for a separate fire rated chase or two layers of fire rated wrap all while occupying a smaller footprint.
With its excellent insulating capabilities it is an ideal choice for tight spaces because it protects combustible constructions at zero clearance to the overlap or collar.
3m fire barrier duct wrap 15a is the thinnest standard single layer fire resistant wrap that has passed the ul1978 test which simulates a grease duct fire.
Small footprint with minimal horizontal slope required 1 16 per foot as compared to field welded wrapped rectangular duct 1 4 per foot light weight safety tested to stringent test requirements ul 1978 ul 2221 and astm e 2336.
Grease duct may be located in a corner formed by two combustible walls provided the.
It is flexible and lightweight for easy installation and passes the necessary fire tests to achieve two hour fire resistance requirements.
Fyrewrap elite 1 5 duct insulation is tested per astm e2336 and is acceptable as an alternate to a traditional fire rated shaft.
3m fire barrier duct wrap 615 is the only fire rated duct wrap product you ll ever need to help protect both grease ducts and air ducts while passing the necessary fire tests to achieve up to 2 hour fire resistance requirements.
3m fire barrier duct wrap 615 is manufactured with a man made vitreous spun.
Available in 5 to 36 diameters.
Rfq duravent grease duct design tips 3 42 clearance to combustibles product options 2 56 installation reduce cost eliminate welding labor while saving time.
