Grease Duct Specification

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Lima, OH

Furnish single-wall, manufacturing unit constructed, grease duct to be used with Kind I kitchen hoods, which conforms to the requirements of NFPA-96. Products shall be ETL listed to UL-1978 and may/ULC-S662 for venting air and grease vapors from commercial cooking operations as described in NFPA-96.The duct wall shall be constructed of .036 and .047 thick stainless steel and be accessible in diameters 8″ by way of 24″.All helps, fan adapters, hood connections, fittings and expansion joints required to put in grease duct shall be included.Roof penetrations shall comply with listed clearance to combustibles, see “Clearance to Combustibles” information for particulars. The grease duct will terminate at the fan adapter plate, will likely be fully welded to the fan adapter plate and the fan adapter plate might be fastened to the curb utilizing a suitably sized fastener provided by others; see web page 12 of the “Set up, Operation and Upkeep Handbook” for details.Grease duct joints shall be held collectively by means of formed vee clamps and sealed with 3M Hearth Barrier 2000+. Screws used to safe the vee clamps shall be of the hex-head kind with flanged stops and tapered “lead in” threads for easy beginning. Nuts shall be retained by means of a free-floating cage to allow simple alignment.Single-Wall Grease Duct shall be put in in accordance with the manufacturer’s “Installation, Operation and Maintenance Guide”, ETL listing and state and local codes.Grease duct put in exterior of the constructing shall be protected in opposition to unintentional damage or vandalism.Assist vertically put in grease duct from the constructing structure using rigid structural supports. Anchor helps to the structure by welding or bolting steel expansion anchors or concrete inserts. Help horizontally installed grease duct from the constructing structure utilizing above method. 1/2″ Threaded rod and saddles might also be used for the support of horizontal grease duct.Fans shall be supported independently from the grease duct sections. Protect grease duct from twisting or movement attributable to fan torque or vibration. All Rights Reserved |Privateness Policy| Questions or Feedback?

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