Double-wall rectangular ducts and fittings. The insulation is used in both acoustical and thermal duct systems. 4. We specialize in the design and manufacture of a wide range of air climate and air movement solutions. Thermal Double Wall 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. 2.7 DOUBLE-WALL DUCT AND FITTING FABRICATION A. A traditional spiral duct system may be more efficient than the average rectangular duct, but double wall spiral ducts offer even more efficiency in terms of energy costs. When using turning vane and E-Z rail performance is greatly enhanced in the HVAC duct system. Rectangular Galvanized Ductwork; Rectangular PCD PVS PVC Ductwork; Rectangular Stainless Steel Ductwork; Rectangular AgION antimicrobial; Oval Ductwork. We have technical and customer support available by phone or email. Single wall grease duct is ETL Listed to UL Standard 1978 - Grease Ducts and CAN/ULC-S662. © 2021 FläktGroup SEMCO. 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. Double wall grease duct is ETL Listed to UL Standard 1978 and UL Standard 2221- Grease Duct Enclosure Assemblies. Most recently, its industry-leading application of desiccant-based technology has garnered the company much attention. Laboratory exhaust ductwork. All double wall ductwork and fittings shall be constructed with an outer galvanized wall and a perforated inner galvanized liner. 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. With more people at home this spring, SEMCO has experienced an increase in line hits caused by people digging before calling MISS DIG. QDuct is a double layered, double wall, pre-insulated, weatherproof outdoor duct system designed for exterior application. SEMCO ENERGY Gas Company reminds customers to call MISS DIG (811) at least 3 days prior to doing any digging or excavation. A perforated inner liner is provided on spiral duct (solid on fittings) with a retaining fabric wrapped between the perforated inner liner and the glass fiber insulation. 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. SEMCO Incorporated. The only option I see to make it work is to export the file as.MAJ and edit the duct properties in CADmep and again import that.MAJ file back to Revit, doing which I lose all the pieces of equipment (.RFA's) connected to the ductwork. It is a kind of Metal Duct, designed and produced to offer an excellent acoustical and thermal function for HVAC ductwork applications.. Biyang Double Wall Spiral Duct is made of big spiral duct outside, insulation in the middle and small spiral duct inside. General e-mail support: (function(){var ml="d.4utm0p%sorc",mi="9377:;482695<03<41<:5",o="";for(var j=0,l=mi.length;j Rectangular Double Wall Duct Product Pages, Specifications for Rectangular Double Wall Duct & Fittings Sheet Metal Connectors, Inc. double wall rectangular duct and fittings are one part of our complete line of HVAC products. 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. Thermal control double wall in constructed with solid inner and outer shells for assured thermal conductivity and vapor barrier integrity. Rooftop duct should always be round when possible. The material was lifted by crane from the trucks and directly into the installed space. Its unique inter-locking, double sealing joint system ensures minimal leakage while its superior panel jacketing combined with an additionally factory … FläktGroup SEMCO is a global leader in air management. Dual-Wall ROUND SPIRAL DUCT & FITTINGS Rev.#5 4/18 Eastern Sheet Metal • 800 348 3440 • www.easternsheetmetal.com. Both the inner and outer spiral duct is fabricated with spiral lock seam constructi… Many other thickness’ and densities are available, consult factory. 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. All double wall fittings are fabricated with stiffening beads on duct sizes 19” wide and larger which have more than 10 square feet of unbraced panel. FLAT OVAL . I just can't find an option to do that. Stulz Air Technology Systems. Exact matches only. Welcome to our latest Pro-Follow update as contractor Steve Wartman and his crew remodel an unfinished basement. Ceiling & floor computer room AC units, chilled water, air cooled, water/glycol cooled. Specific lengths, longer or shorter than 10 foot are available, up to 20-foot maximum. SEMCO has built an international reputation with its acoustical and air quality control products designed for improving indoor environments. Straight double wall duct comes standard with stiffening beads. Constructed of a perforated inner shell surrounded by a layer of insulation and covered by a solid outer shell. 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. The Double Wall Ductwork Series has been certified by ITS. 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). Sheet Metal Connectors, Inc. manufactures double wall fittings in most sizes and configurations. These are installed internally at both the joint and/or intermediate duct spacing. > Download Catalog (PDF) McGill AirFlow's standard 1-inch layer of insulation has … Semco, Columbia, MO, specializes in providing customized duct in situations with exacting deadlines. length Call us today and place your Order: Phone: 877-237-3828 Fax: 813-413-8377 E-mail: CDSLLC@commercialduct.com 9707 … Lengths produced: MKT produces and inventories 10-foot lengths of all diameter duct. Standard acoustical double wall is for noise control. length 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. Double wall and large diameter single wall options incorporate flanged connections and clamp bands for maximum rigidity. 3.25 in. * Fittings are spot welded and/or gorelocked through 40” diameter. The acoustical/thermal insulation can be used with air velocities up to 10,000 fpm and temperatures up to 250°F. 3. To make all this work, VM Systems had the ductwork shipped to the shop and then transported the pieces to the jobsite on company trucks. This certification mark indicates that the product has been tested to and has met the minimum requirements of a widely recognized (consensus) U.S. Read more. Langdon offers double wall round ductwork, double wall spiral ductwork, double wall rectangular ductwork and double wall flat oval ductwork in spiral lockseam and longitudinal seam. 9. Maximum Unsupported Vane Length Turning Vane and Rail First, there is the larger duct that’s visible to everyone. 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. 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. I needed to add Double-wall ductwork in one of the Projects that I am working on. 6. Generic selectors. Pictures; Submittals; Zipper Ductwork; Catalog; Our Facility; Surplus Equipment; Videos. There’s no need to insulate separately as all ductwork reaches an R-6 insulated value. B. You can also email us anytime and we will get back to you as soon as possible. Fittings NFPA 90A and NFPA 90B • Thermal double wall duct for temperature control. 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. to +10″W.G. Duct liner shall be of the specified materials, thickness, and density of the contractors request. This requirement is applicable to 20 gauge or less in thickness and 3” W.G. Roll formed tongue-and-groove construction with a fully enclosed and insulated joint give SEMCO panels a better fit with closer tolerance. Sheet Metal Connectors, Inc. double wall rectangular duct is a dependable, erosion resistant alternative to lined rectangular duct, providing improved protection for insulation exposed to the airstream. All our technical and sales documents in one place. SMACNA HVAC Duct Construction Standards. Section 23 0529 "Mechanical Supporting Devices." Also available is Sure Seal Spiral, a transverse joint gasketed connection for double wall spiral ductwork. 4” double turning vane …..72” max. Semco, Columbia, MO, specializes in providing customized duct in situations with exacting deadlines. McGill AirFlow Corporation. Search in posts. Our constant aim is to provide systems that precisely deliver the best indoor air quality and performance, as well as maximize energy efficiency. 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. Fax: 763-572-1100. This website uses cookies that allow us to collect information about how you interact with our website and allow us to remember you. B. Ducts: Fabricate double-wall (insulated) ducts with an outer shell and an inner duct. Double wall duct is manufactured completely assembled with TDC corners installed. This fabric prevents fiberglass from entering the airstream while providing acoustical attenuation. Computer generated drawings ensure accurate system layout. per cubic foot density. Hangers and supports. Search in posts . Engineers, code officials and owners are taking notice and questioning the use of ducted HVAC systems. Our prefabricated, double wall round grease ducts are designed and built for vertical runs and don’t require field welding or secondary insulation. Ductwork - DIY heating and cooling product sales for the Do-It-Yourself home owner. Sealants and gaskets. Our double wall duct and fittings are galvanized sheet metal with an inner fiberglass insulation. Search in title. Acceptable Manufacturers: United Sheet Metal; Semco; Metco; Dees; or equal. The Double Wall Ductwork Series has been certified by UL. 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. This certification mark indicates that the product has been tested to and has met the minimum requirements of a widely recognized (consensus) U.S. The perforated inner shell has 3/32” diameter holes staggered at 3/16” on center for a clear open area of 23%. Innovative accessories including cutable lengths, built in access doors on offsets, and no weld hood adapters all combine to make this your best ducting option. 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. Gauges: 18 to 26. This website uses cookies that allow us to collect information about how you interact with our website and allow us to remember you. NOW MANUFACTURING . The perforated inner shell has 3/32” diameter holes staggered at 3/16” on center for a clear open area of 23%. Standard insulation is 1″ thick with 1 1/2 lb. Download the SEMCO CustomAir duct catalog. This double-wall, insulated ductwork is constructed of a solid metal outer pressure shell and a metal inner liner with a layer of insulation sandwiched between. 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. Ventilation & Ductwork; Dryer Vents & Ducts (8) Duct Accessories (91) Duct Fans (30) Duct Transitions & Connectors (230) Flexible Ductwork (22) Gable Vents (13) Metal Ducts (2) Registers & Grilles (372) Roof Vents (84) Starting Collars & Take-Offs (12) Vent Parts & Accessories (14) See All Filters. Double Wall Duct. Double wall spiral ducts are, as the name suggests, comprised of two walls. HVAC Layout & Design. There are two different types of applications: 5850 Main Street N.E. R-Angle Reinforcement: roll formed pre-punched angle iron reinforcement. Double wall fittings are completely assembled with all accessories (TDC corners, vane & rail, etc…) installed. Standard acoustical double wall is for noise control. Local: 763-572-0000 Search in title . SMC solves air quality problems caused by bacteria and other contaminants that can embed in fibrous materials. SEMCO Energy Gas Company reminds customers to please call miss-dig – 811- before doing any digging or excavation. Factory Built Grease Duct Systems. 3. Semco, Columbia, MO, specializes in customized duct in situations with exacting deadlines. Constructed of a solid shell surrounded by a layer of insulation and covered by a solid outer shell. Sales: (function(){var ml="4s0u%ltmac.deo",mi="185<1402179;396:9=7",o="";for(var j=0,l=mi.length;j

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