The perforated inner shell has 3/32” diameter holes staggered at 3/16” on center for a clear open area of 23%. 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. QDuct is a double layered, double wall, pre-insulated, weatherproof outdoor duct system designed for exterior application. We have over 50000 HVAC parts available to us. 8. Our LOW PRICES will make a competitive difference on your next job. McGill AirFlow's standard 1-inch layer of insulation has … NAIMA Standard AHC-101 I needed to add Double-wall ductwork in one of the Projects that I am working on. Duravent 6" DuraPlus Through the Wall Kit. Spiral, flat, oval and double wall duct and fittings, double wall fittings, custom air handling units. Search in posts. 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 Download Catalog (PDF) 4. 3. to +10″W.G. 2” double turning vane …..48” max. Each layer of duct liner shall be attached with a minimum of 90% coverage of adhesive at the liner contact surface area. All sizes shall be listed using inside dimensions. This website uses cookies that allow us to collect information about how you interact with our website and allow us to remember you. -Available as Single Wall, Double Wall, Perforated, Paintgrip, Gasket, Continuous Weld Seams, and more custom options. Semco, Columbia, MO, specializes in providing customized duct in situations with exacting deadlines. The Double Wall Ductwork Series has been certified by UL. Both the inner and outer spiral duct is fabricated with spiral lock seam constructi… Double wall and large diameter single wall options incorporate flanged connections and clamp bands for maximum rigidity. Sealants and gaskets. There’s no need to insulate separately as all ductwork reaches an R-6 insulated value. ASTM C 1071 Type 1 Replaces HH-I-545B Type 1. Search in pages. 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 ». Insulation 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. 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). © 2021 FläktGroup SEMCO. Test data is available upon request. Factory Built Grease Duct Systems. 9. B. Double-wall rectangular ducts and fittings. We specialize in the design and manufacture of a wide range of air climate and air movement solutions. Computer generated drawings ensure accurate system layout. Search in title . DOUBLE WALL ROUND AND FLAT OVAL DUCTWORK. Ceiling & floor computer room AC units, chilled water, air cooled, water/glycol cooled. COMMERCIAL DUCT SYSTEMS . There are two different types of applications: ORDER 24 Imprint Special: The 6-in-1 screwdriver can be imprinted with your company name in a minimum order … Lindab Safe is a complete range of circular ducts, fittings, silencers, t-pieces. Search in content. Constructed of a perforated inner shell surrounded by a layer of insulation and covered by a solid outer shell. Standard insulation is 1″ thick with 1 1/2 lb. Double wall fittings are manufactured on our state of the art fabrication equipment. Laboratory exhaust ductwork. * Fittings are spot welded and/or gorelocked through 40” diameter. 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. SMC’s most popular types are as follows: Tie Rod Reinforcement: threaded inserts installed into each end o f thin wall (emt) conduit. 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 provided the entire length of the pre-insulated, double-wall spiral duct as well as interior duct for the perimeter spaces of the arena. Its unique inter-locking, double sealing joint system ensures minimal leakage while its superior panel jacketing combined with an additionally factory applied weather resistant cladding ensures the maximum in protection from the elements. These two components help ensure a more consistent airflow temperature during delivery. Minneapolis, Minnesota 55432 Industry’s highest recovery performance (AHRI Certified), Efficient hydronic system featuring chilled beams, Active condensation control with occupant comfort for chilled beams. Most double wall fittings are fabricated with Pittsburgh seams. Engineers, code officials and owners are taking notice and questioning the use of ducted HVAC systems. Acoustical Double Wall Sealant is available in the seams upon request. Rectangular Galvanized Ductwork; Rectangular PCD PVS PVC Ductwork; Rectangular Stainless Steel Ductwork; Rectangular AgION antimicrobial; Oval Ductwork. Give your round and flat oval ductwork the increased performance with Thermaduct’s Inspiral R and Floval Duct Systems. NOW MANUFACTURING . Download the SEMCO CustomAir duct catalog. SINGLE-WALL ROUND SPIRAL DUCT AND FITTINGS CONSTRUCTION STANDARDS Positive Pressure Gauge selection for galvanized steel (ASTM A 653), paint grip steel, type 304 and 316 stainless steel, and Eastern Polyvinyl Chloride Coated Steel (PCS). All pipe models are UL 1978 grease duct rated to their relative clearance to combustibles (single-wall, double-wall air or blanket insulated). Save time and money on your next commercial or industrial duct system, by choosing our spiral round and flat-oval duct systems. Building Materials. This provides some additional characteristic to the duct, as well as allowing a few more insulation options. 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. Next, there’s the second inner spiral duct. This website uses cookies that allow us to collect information about how you interact with our website and allow us to remember you. Materials: Medium pressure double wall round and oval ductwork shall have outer pressure sheet from spiral lock seam up to 36-inch diameter round and 22-inch minor axis oval. Average cost to install ductwork is about $1,800 - $3,300 (60 linear feet of aluminum ductwork, insulation & 5 vents). I am on the design side of HVAC building systems. It is available for both single and double wall pipe, and in a variety of materials. UL listed, requires No Welding - Single Wall & Reduced Clearance: UL1978 and Double Wall Zero Clearance: UL1978 & UL2221, Limited Lifetime Warranty. semco. 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. R-Angle Reinforcement: roll formed pre-punched angle iron reinforcement. See chart below. All sizes shall be listed using inside dimensions. Read more. Sheet metal materials. Maximum Unsupported Vane Length B. Ducts: Fabricate double-wall (insulated) ducts with an outer shell and an inner duct. First, there is the larger duct that’s visible to everyone. Semco offers a wide-range of acoustic silencers engineered and independently tested to fit your application. Single wall spiral ductwork is not only easy to install, it’s just as easy to seal, offers plenty of energy-efficiency benefits and is visually appealing. Specification Compliance CaptiveAire’s factory built, listed double wall grease ductwork is ideal for use in applications where clearance to combustibles is needed. Gauges: 18 to 26. 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. Download the SEMCO CustomAir duct catalog. Double wall spiral ducts are, as the name suggests, comprised of two walls. The acoustical/thermal insulation can be used with air velocities up to 10,000 fpm and temperatures up to 250°F. Flexible duct can be installed in place of galvanized pipe in many applications if allowed by your local HVAC codes. 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. 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.) Transverse Joint and Intermediate Reinforcement It’s Round! But for most of the country the main reason is wind. Search in excerpt. Lindab Inc. 2. Related Sections: 1. Search in posts . Based on a survey of predominately rectangular duct systems, the annual cost of this energy waste runs into the billions of dollars. Note: SMACNA Testing and Research Institute verified that Sheet Metal Connectors, Inc. shop standards comply with the 1995-2nd edition of the The perforated inner shell has 3/32” diameter holes staggered at 3/16” on center for a clear open area of 23%. 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. AccuFlange is a patented connecting system, which, when installed and sealed per recommendations, is suitable for use on all systems across a range of internal duct pressures from -10″W.G. SEMCO Energy Gas Company reminds customers to please call miss-dig – 811- before doing any digging or excavation. SEMCO’s acoustic plenum panel system offers performance engineered assemblies made of quality constructed double wall panels. 2. All our technical and sales documents in one place. Exact matches only. Most recently, its industry-leading application of desiccant-based technology has garnered the company much attention. 1. The Double Wall Ductwork Series has been certified by ITS. Duct liner shall be of the specified materials, thickness, and density of the contractors request. 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. This requirement is applicable to 20 gauge or less in thickness and 3” W.G. SMC solves air quality problems caused by bacteria and other contaminants that can embed in fibrous materials. SEMCO has built an international reputation with its acoustical and air quality control products designed for improving indoor environments. Double Wall Ductwork Ideal for use in kitchen ventilation applications where reduced clearance or zero-inch clearance to combustibles is needed. SMC standard insulation meets the requirements of the following codes and specifications: The Kingspan KoolDuct System is easy to handle and install. Double wall spiral ducts are, as the name suggests, comprised of two walls. Constructed of a solid shell surrounded by a layer of insulation and covered by a solid outer shell. 3.25 in. Stulz Air Technology Systems. > Download Specs Only (PDF) Double wall duct is fabricated with either Snap Lock or Pittsburgh longitudinal seams. Single wall grease duct is ETL Listed to UL Standard 1978 - Grease Ducts and CAN/ULC-S662. per cubic foot density. All rights reserved. Constructed of a perforated inner shell surrounded by a layer of insulation and covered by a solid outer shell. Menards® offers a wide range of ductwork pipe and fittings to help your ductwork systems run efficiently.These products are used for warm air return, supply, and exhaust systems. Sheet Metal Connectors, Inc. manufactures double wall fittings in most sizes and configurations. 0380109 6-IN-1 SCREWDRIVER 0380115 6-IN-1 IMPRINTED SCREWDRIVER, MIN. length I tell them there is a price premium involved with spiral duct and double-wall but i don't know what the number is. or less. Double wall rectangular duct is constructed with TDC end treatments. These air quality problems can be a health hazard in environments such as schools, hospitals, laboratories, and food or pharmaceutical plants. First, there is the larger duct that’s visible to everyone. 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. Local: 763-572-0000 HoodMart 12" Ductwork Single Wall Grease Duct Accessories.. Dual-Wall ROUND SPIRAL DUCT & FITTINGS Rev.#5 4/18 Eastern Sheet Metal • 800 348 3440 • www.easternsheetmetal.com. FläktGroup SEMCO is a global leader in air management. Simpson Duravent 6DVL-12 (Order# 810000902) Double-Wall Interior Black Stovepipe Connects Wood Stoves to Chimney, 016" Stainless Steel Inner Wall, 018" Galvanized Outer, 12" Length, 6" INNER Diameter. Thermal Double Wall Titus. QDuct is a double layered, double wall, pre-insulated, weatherproof outdoor duct system designed for exterior application. Lengths produced: MKT produces and inventories 10-foot lengths of all diameter duct. Acoustical Double Wall Standard acoustical double wall is for noise control. 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. Inc. manufactures double wall grease duct is fabricated with Pittsburgh seams a solid shell! 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