Call us today and place your Order: Phone: 877-237-3828 Fax: 813-413-8377 E-mail: CDSLLC@commercialduct.com 9707 … 9. HoodMart 12" Ductwork Single Wall Grease Duct Accessories.. Our collective experience is unrivalled. It is available for both single and double wall pipe, and in a variety of materials. Product safety standard, that the manufacturing site has been audited, and that the applicant has agreed to a program of periodic factory follow-up inspections to verify continued performance. x 3 ft. Half Section Rectangular Stack Duct Master Flow's Rectangular Stack Duct is used Master Flow's Rectangular Stack Duct is used for HVAC system applications between wall studs as supply and return ducts, and to vent range hoods, kitchen and bath fans between walls as well . Double wall rectangular duct is constructed with TDC end treatments. Copyright 2021 ©, 45 Degree Standing Seam Elbows and Angles, 45 Degree Two-Piece Pressed Solid Welded Angles, 45° Degree Adjustable Angles with E-Z Flange, 45° Degree Lateral Cross with E-Z Flange, 45° Degree Swedge Saddle with E-Z Flange, 45° Standing Seam Elbows and Angles with E-Z Flange, 45° Two Piece Pressed Solid Welded Elbows with E-Z Flange, 45° Welded Gored Elbows and Angle with E-Z Flange, 90 Degree Adjustable Elbows with E-Z Flange, 90 Degree Pressed Saddles No Damper with E-Z Flange, 90 Degree Pressed Saddles with 2-Inch Stand Off with E-Z Flange, 90 Degree Pressed Saddles with Volume Damper with E-Z Flange, 90 Degree Shoe Tap Saddle with E-Z Flange, 90 Degree Standing Seam Elbows and Angles, 90 Degree Standing Seam Elbows and Angles with E-Z Flange, 90 Degree Two Piece Pressed Solid Welded Elbows, 90 Degree Two Piece Pressed Solid Welded Elbows with E-Z Flange, 90 Degree Welded Gored Elbows and Angles with E-Z Flange, 90° Degree Conical Swedge Saddle with E-Z Flange, 90° Pressed Saddles with 1-1/2-inch Stand Off with E-Z Flange, Companion Angle Rings – Pressed and Rolled, Complete Seal Damper Sleeve with 2-inch Standoff, Conical E-Z Tap with 2-inch Standoff Collar, Conical E-Z Tap with 2-inch Standoff with E-Z Flange, Double Wall 45˚ Degree Angle with E-Z Flange and Barrel Clamp, Double Wall 45° Lateral with E-Z Flange and Barrel Clamp, Double Wall 90° Elbow with E-Z Flange and Barrel Clamp, Double Wall 90° Tee with E-Z Flange and Barrel Clamp, Double Wall E-Z Flange Jr. with Barrel Clamp – 6-inch to 24-inch, Double Wall E-Z Flange with Barrel Clamp – 26 inch to 96 inch Diameter, Double Wall Pipe with E-Z Flange and Barrel Clamp, Double Wall Standard Spiral Pipe Connector, DP2501 Water Based Duct Liner Adhesive – Clear, E-Z Flang Jr. with Barrel Clamp Field Cut Set, E-Z Flange Jr. with Barrel Clamp – 6-inch to 24-inch Diameter, E-Z Flange Jr. with Barrel Clamp – 26 to 96-inch Diameter, E-Z Flange Jr. with Barrel Clamp – 6 to 24-inch Diameter, E-Z Flange with Barrel Clamp – 26 to 96-inch Diameter, E-Z Tap Collar with Damper Polyvinyl Coated, E-Z Tap Collars with 2-inch Standoff with E-Z Flange, E-Z Tap Collars with Volume Damper with E-Z Flange, E-Z Tap Conical Takeoff Collar Polyvinyl Coated, E-Z Tap Conical Takeoff Collar with Damper, E-Z Tap Conical Takeoff Collar with Damper Polyvinyl Coated, E-Z Tap Conical Takeoff Collar with E-Z Flange, End Bearing Line – 3/8in Acorn Nut Handle, Engineering End Bearing Line – 1/2in Closed End, EZ Rail II Snap Lock and Single-Wall Turning Vanes, Flexible Duct Connector – 3 x 3 x 3 – equal to MBX, Flexible Duct Connector – 4 x 4 x 4 – TDC, Flexible Duct Connector – Aluminum – 3 x 3 x 3, Flexible Duct Connector – Jr. Canvas – 2 x 3 x 2, Flexible Duct Connector – Stainless – 3 x 3 x 3, Handles, Extensions, Standoffs & Regulators, Hi-Efficiency Take off (Super Heto) with 2-inch Standoff with E-Z Flange, Hi-Efficiency with Take Off (Super Heto) with Volume Damper with E-Z Flange, High Efficiency Take Off (Super Heto) with 2-inch Extension and EZ Flange, High Efficiency Take Off (Super Heto) with EZ Flange, OBN – Opposed Blade Non-Sealed Balancing Damper, Pair of Pants (Wye Branch) with E-Z Flange, PBN – Parallel Blade Non-Sealed Balancing Damper, ROBN – Round Opposed Blade Non-Sealed Balancing Damper, Round Ceiling Diffuser with Butterfly Damper, RSBS – Round Single Blade Sealed Damper, Save on Labor with SMC Turning Vane and E-Z Rail, Super Heto with 2-inch Extension with E-Z Flange, Rectangular Double Wall Duct Product Pages. There are two different types of applications: Double wall insulated duct: Perforated inner wall for insulation and decibel applications; Solid inner wall for insulation only; Connection Types NFPA 90A and NFPA 90B Download the SEMCO CustomAir duct catalog. Semco offers a wide-range of acoustic silencers engineered and independently tested to fit your application. 2” double turning vane …..48” max. NOW MANUFACTURING . Insulation Dimensions indicated are for inner ducts. Sheet Metal Connectors, Inc. manufactures double wall fittings in most sizes and configurations. Download the SEMCO CustomAir duct catalog. This innovative, rectangular HVAC ductwork system is installed in a single fix, eliminating many of the disadvantages associated with galvanised sheet steel, mineral fibre duct board and pre– insulated rigid polyisocyanurate (PIR) ductwork systems. 3.25 in. HAS A WIDE SELECTION OF VENTS, ... Comes standard with a double end Phillips bit (1/4" end) and a double end slotted bit on the 5/16" end. x 10 in. This information is used to improve and customize your browsing experience and for measuring analytics about our visitors both on this website and other media. 1. Our constant aim is to provide systems that precisely deliver the best indoor air quality and performance, as well as maximize energy efficiency. Average cost to install ductwork is about $1,800 - $3,300 (60 linear feet of aluminum ductwork, insulation & 5 vents). Additionally, thanks to the ability for non-shedding fiberglass, single wall spiral ducts can be insulated without a core, resulting in significant cost savings (up to 50% of the cost of double wall spirals). The Semco Modular Panel Duct Systems are designed specifically to be an affordable substitute for engineers and contractors when designing and installing double wall rectangular duct to connect duct systems to plenums or housings. Volume dampers and accessories were also factory installed by the manufacturer, DUCTWORK DESIGN CONSIDERATIONS 33 11.1 Duct Frictional Resistance 33 11.2 Duct Equivalent Length 35 11.3 Ductwork System Effect 35 11.4 Installation Issues 37 11.5 Ductwork Insulation 38 11.6 Ductwork Air Leakage 39 11.7 Testing Methods and Equipment 40 11.8 Ductwork Sealing 41 11.9 Volume Flow Rate Measurements 42 11.10 Ductwork Pressure Balancing 43 11.11 Duct Noise … SEMCO provided the entire length of the pre-insulated, double-wall spiral duct as well as interior duct for the perimeter spaces of the arena. length Constructed of a perforated inner shell surrounded by a layer of insulation and covered by a solid outer shell. QDuct is a double layered, double wall, pre-insulated, weatherproof outdoor duct system designed for exterior application. > Download Catalog (PDF) When exceeding maximum vane length, vanes can be installed in sections or a tie rod can be tack welded to the face of the turning vane. Double wall duct is manufactured completely assembled with TDC corners installed. The material was lifted by crane from the trucks and directly into the installed space. to +10″W.G. Semco, Columbia, MO, specializes in providing customized duct in situations with exacting deadlines. The insulation in double-wall duct and fittings acts as a thermal barrier, increasing a duct system's effectiveness by helping to maintain the temperature of heated or cooled air being ducted through the system. Semco, Columbia, MO, specializes in providing customized duct in situations with exacting deadlines. SEMCO ENERGY Gas Company reminds customers to call MISS DIG (811) at least 3 days prior to doing any digging or excavation. Site by WebRevelation | Bookmark Website | Terms of Use. I needed to add Double-wall ductwork in one of the Projects that I am working on. Thermal control double wall in constructed with solid inner and outer shells for assured thermal conductivity and vapor barrier integrity. The perforated inner shell has 3/32” diameter holes staggered at 3/16” on center for a clear open area of 23%. Related Sections: 1. The manufacturer customized rectangular saddle taps to fit inside the round duct. Acoustical double wall duct has a solid outer shell and a perforated inner shell to effectively reduce system noise. HVAC Layout & Design. ASTM C 1071 Type 1 Replaces HH-I-545B Type 1. Search in content . Double-wall rectangular ducts utilize the same outer metal shell and insulation media as our Internally-lined rectangular ducts, but have an additional metal inner shell between the insulation and the airstream. Double wall ductwork construction consists of perforated liner on the spiral duct, a solid liner on the fittings, a layer of fiberglass insulation, and a solid outer pressure shell. First, there is the larger duct that’s visible to everyone. This information is used to improve and customize your browsing experience and for measuring analytics about our visitors both on this website and other media. SMC’s most popular types are as follows: Tie Rod Reinforcement: threaded inserts installed into each end o f thin wall (emt) conduit. FLAT OVAL . Duct liner shall be of the specified materials, thickness, and density of the contractors request. It provided the entire length of the pre-insulated, double-wall spiral duct, as well as interior duct and specialized fittings for the perimeter spaces of the arena. B. Ducts: Fabricate double-wall (insulated) ducts with an outer shell and an inner duct. 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. length Note: SMACNA Testing and Research Institute verified that Sheet Metal Connectors, Inc. shop standards comply with the 1995-2nd edition of the SEMCO’s acoustic plenum panel system offers performance engineered assemblies made of quality constructed double wall panels. Read FläktGroup SEMCO's comments on the chilled beam market.READ MORE », AVRON 46 prevents the growth and spread of mold and bacteria.READ MORE », FläktGroup SEMCO joins the fight against COVID-19READ MORE ». Minneapolis, Minnesota 55432 Next, there’s the second inner spiral duct. 6. Building Materials. Sealants and gaskets. This provides some additional characteristic to the duct, as well as allowing a few more insulation options. In double wall rectangular duct a metal inner liner insures that high airflow velocities cannot separate insulation by pulling away from the duct’s outer wall and creating erosion or airflow problems. Spiral, flat, oval and double wall duct and fittings, double wall fittings, custom air handling units. I tell them there is a price premium involved with spiral duct and double-wall but i don't know what the number is. Double-Wall Round/Flat Oval Duct and Fittings Single-Wall Rectangular Duct and Fittings Rectangular-k27® Duct and Fittings Exposed Duct SilverGuard™ Antimicrobial Ductwork Uni-Gasket® Self-Sealing Fittings Uni-Coat™ - Polyvinyl-Chloride-Coated Steel Ductwork Read more. NAIMA Standard AHC-101 Ventilation & Ductwork (878 products) Category. It’s Round! All our technical and sales documents in one place. This requirement is applicable to 20 gauge or less in thickness and 3” W.G. Search in posts . HELPS ME PATCH HOLES IN MY WALL AND CEILING? These are installed internally at both the joint and/or intermediate duct spacing. We have technical and customer support available by phone or email. See chart below for specifications. Field or installation labor includes distribution of ductwork, erection of scaffolds, handling of tools, layout of duct runs, cutting duct hangers and cleats, ductwork hanging time (including straight duct and fitting connections), labor time to remove erection equipment, clean up.A typical 15% labor idle time is applied to the total labor hours. Standard insulation is 1″ thick with 1 1/2 lb. Double wall grease duct is ETL Listed to UL Standard 1978 and UL Standard 2221- Grease Duct Enclosure Assemblies. Rectangular Galvanized Ductwork; Rectangular PCD PVS PVC Ductwork; Rectangular Stainless Steel Ductwork; Rectangular AgION antimicrobial; Oval Ductwork. The insulation is used in both acoustical and thermal duct systems. This website uses cookies that allow us to collect information about how you interact with our website and allow us to remember you. 2.7 DOUBLE-WALL DUCT AND FITTING FABRICATION A. Dual-Wall ROUND DUAL-WALL ROUND SPIRAL DUCT AND FITTINGS CONSTRUCTION STANDARDS Outer Shell Positive Pressure Gauge selection for galvanized (ASTM A653), paint grip steel, and types 304 and 316 stainless steel. Oval AGIon antimicrobial; Double Wall Ductwork. QDuct is a double layered, double wall, pre-insulated, weatherproof outdoor duct system designed for exterior application. 3. 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. With more people at home this spring, SEMCO has experienced an increase in line hits caused by people digging before calling MISS DIG. Computer generated drawings ensure accurate system layout. Lengths produced: MKT produces and inventories 10-foot lengths of all diameter duct. Product safety standard, that the manufacturing site has been audited, and that the applicant has agreed to a program of periodic factory follow-up inspections to verify continued performance. Generic selectors. Standard acoustical double wall is for noise control. > Download Specs Only (PDF) While based loosely on a few facts, and maybe kind of true for the way ducts were fabricated and installed 25 years ago, the notion is outdated and needs to be reevaluated for modern duct systems. Exact matches only. Single-wall round and flat-oval ducts and fittings. All sizes shall be listed using inside dimensions. Ductwork will be spiral seam construction made from G-90 or better galvanized steel conforming to ASTM A653/A653M and A924/A924M Standards, Lock-Forming Quality (LFQ). COMMERCIAL DUCT SYSTEMS . Duct Liner—Unfaced. Latest News from McGill AirFlow LLC FOR RELEASE: McGill AirFlow's Double-Wall Insulated Duct and Fittings Provide Exceptional Noise and Thermal Control McGill AirFlow's Acousti-k27 double-wall, insulated duct and fittings provide exceptional noise and thermal control in air handling systems. The Kingspan KoolDuct System is easy to handle and install. We specialize in the design and manufacture of a wide range of air climate and air movement solutions. We combine the proven technology of our double-wall duct manufacturing with the properties of Kingspan KoolDuct® to give you the perfect rooftop ducting solution. Local: 763-572-0000 A double seal made of EPDM rubber makes the system quick and easy to mount. SEMCO® is a registered trademark of SEMCO, LLC and SEMCO Duct and Acoustical Products, Inc. SEMCO, LLC and SEMCO Duct & Acoustical Products, Inc. are part of FläktGroup and are sometimes referred to collectively as FläktGroup SEMCO. SEMCO Energy Gas Company reminds customers to please call miss-dig – 811- before doing any digging or excavation. SEMCO Incorporated. Its unique inter-locking, double sealing joint system ensures minimal leakage while its superior panel jacketing combined with an additionally factory … Round Double Wall Duct is constructed of Galvanized Steel with a 4-ply spiral lock seam of the following minimum U.S. standard gauges: NOMINAL (O.D.) FläktGroup SEMCO is a global leader in air management. €¢ thermal double wall spiral duct as well as maximize energy efficiency silencers engineered and independently tested fit. The country the main reason is wind insulated duct perforated, Paintgrip, Gasket, Continuous Weld,! For noise control with the properties of Kingspan KoolDuct® to give you the perfect rooftop ducting solution back to as. Ductwork single wall options incorporate flanged connections and clamp bands for maximum rigidity greatly in! 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