The NFPA 96 Standard for Ventilation Control and Fire Protection of Commercial Cooking Operations requires all commercial kitchen exhaust systems to have duct access doors.Nov 11, 2016
What is an access door?
Access doors provide access to a specific piece of equipment or a confined space. They are typically small, hinged doors that offer access to compartments. Note, however, that access doors do not include roof hatches and floor hatches - a separate product category.
How do you install a door in duct?
https://www.youtube.com/watch?v=BFWvxaVf0ro
How does grease duct work?
Your grease ducts are the main exit path for smoke and grease-laden air from commercial kitchen cooking equipment. As contaminated air from cooking appliances passes through the ducts, the vapors cool and settle on the inside of the ductwork.Jun 22, 2018
What is grease duct made of?
Grease Duct is ETL Listed, single wall construction made from stainless steel. Duct diameters range from 5" to 36", with multiple lengths and accessories available. Grease duct is ideal for use in kitchen ventilation applications where clearance to combustibles and temperature retention in the duct is not a factor.
What is grease duct made from?
Field fabricated is typically made from 16 gauge carbon steel, all welded per local codes, which is then externally treated with fireproofing.
Why is grease duct black iron?
Black Iron Grease duct is fabricated to safely transfer contaminated air, grease vapors, and heat. In a commercial kitchen, grease is heated to its vaporization point. Vapors then cool, condense and settle on colder surfaces. This produces a highly flammable hydrocarbon which can be very dangerous.Aug 9, 2021
Does grease duct have to be welded?
Duct diameters range from 8” to 24”, with multiple lengths and accessories available. ... Grease duct is pre-engineered for optimum performance for exhaust fans and hoods. Grease duct is ETL listed to Standard UL-1978; duct does not have to be welded in the field.