Smacna Duct Gauge Chart Pdf

The Gripple Plus Anchor Kit for wooden posts includes a pre-cut, fused length of wire rope, a Gripple tensioner, a wire thimble and a twister to keep the tail wire neat and tidy. The table below can be used to compare equivalent diameters for rectangular and round circular ducts , ductwork sizing , friction loss, sheet metal gauges, etc. The drawings will help you gain a better understanding of engineered system design options, but these. pages of the incorrect Genuine free smacna. 1 Length Limitation. Author: pipingdesigners. pressure class. These instruments are typically auto ranging and can automatically detect supply or return airflow. 60) unless noted otherwise. Gutter Copper 16oz. Vanstone or other proprietary connections are available by special order. The US Duct Pricing Guide includes duct specifications for sizes, connectors, material and prices for many of our products. FIBROUS GLASS INSULATED HVAC DUCT SYSTEMS 4 Sheet metal ducts with exterior fibrous glass exterior insulation Flexible Blanket Fibrous glass duct wrap insulation is designed for application to the exteriors of commercial and residential sheet metal heating, ventilating, and air-conditioning ducts and plenums operating at temperatures between 40˚F. Ductwork and duct systems components for HVAC professionals: The Duct Shop has the largest selection of quality metal ductwork supplies, HVAC ductwork, sheet metal ducts, HVAC fittings, and airflow ducts for duct fitters & duct installers. 015 (which it most likely will) the pipe will not form properly in the machine. Cleveland, Ohio 44147. In cases where the width of the retaining angle is such that it would inhibit. Fans designed for. Maximum length – 3. Master Flow 6 in. is a Thailand company with more than 20 years of experience in manufacturing HVAC duct systems and cleanroom equipment with leading technologies to its customers. Kynar Galvalume (Steel) for metal roofing and gutters: 24 gauge. This guide covers standard specification for seamless, straight-seam welded, and cold worked welded austenitic stainless steel pipe intended for high-temperature and. Where exhaust duct construction is not specified in this chapter, construction shall comply with Chapter 16. edu is a platform for academics to share research papers. It is better to join the pipes with foil-backed duct tape. Static Positve or Negative is Made With The Finest G90 American Steel. Other materials are available. Order of Magnitude Mechanical Estimating Justin Apprill, P. The min of the Spiral Helix TF3600, the runaway top seller of Spiral Pipe Tubeformers, is. The grease duct system includes all components for a complete exhaust system from the hood to the exhaust fan inlet. free smacna condition of range ride. com (5 MB) free from TraDownload. kineticsnoise. (4) Write a review. Touch up the rivet heads with sealant and be sure to check the joint for any sealant voids. ASME AG-1a-2009 COMPLIANCE MATRIX PLAN. Sleeves shall not extend beyond the fire barrier. 5 for other piping categories. represented in the dimensional chart. As indicated below, if the permeability of the insulation is less than 0. The inlet collar of the terminal is made 1/8 inch smaller than listed size in order to fit inside the duct. Generally, the velocity should be no more than 700 FPM. All our fabricated duct is 24/26 gauge. Standards, guides, and manuals covering duct work and air conditioning; high-pressure duct construction standards; balancing and adjustment of air distribution systems; energy recovery equipment and systems air-to-air; fibrous glass duct construction standards; HVAC duct system design; etc. DUCT SIZE DUCT GAUGE JOINT LENGTH WIDE SIDE CONNECTOR NARROW SIDE CONNECTOR 0 - 12" 26 59" FLAT SLIP T-6 24 GA FLAT DRIVE T-1 24 GA 13 - 18" 26 59" STANDING SLIP T-11 26 GA FLAT DRIVE T-1 24 GA 19 - 30" 26 56" T. It is resistance to air at rest in a duct, and is also commonly. Both metal and fiberglass duct board are rigid and installed in pieces, while flex-duct comes in long sections. for all ducts between the supply fan and variable volume control boxes and 1” (250 Pa) w. Touch up the rivet heads with sealant and be sure to check the joint for any sealant voids. all sizes of ducts shown on the drawings are interior duct dimensions. Wall openings drawings wherever duct is passing through walls 22. System sizes are limited to 30 tons or less cooling capacity. Safety Always work safely when installing metal products and use extreme caution on the roof at all times. The self-generated noise for double wall duct is too low to be measured by ASTM E477-96. Florida Tech Design and Construction Standards Ductwork 15890-2 of 5 Facilities Planning & Design A. Single Wall Oval Pipe Chart Single Wall Oval Fittings Chart Major Dimension duct Width Gauge Of Duct Duct Gauge Spiral Longitudinal Seam Seam Fittings Gauge Sealant : Non- hardening, non- migrating mastic or liquid elastic sealant specifically for sealing. Canada's best source for Quality Tools, Equipment and Supplies for Jewellers and the Jewellery Industry. inches of water gauge, w. Petersen’s strong national sales base allows for large inventories and cost economies for its customers. Garfield Avenue Los Angeles, CA 90040. All Duro Dyne Flexible Duct Connector utilize 24 or 28 gauge galvanized steel meeting ASTM-A-525 G60. SMACNA HVAC Duct Construction Standard to +10 inch wg. detail title /exhaust stack detail december 2008 sd233100-16. The outlets, including diffusers, grilles, and registers, divide the airflow in a truck-and-branch ductwork design. Air Duct quantity can be estimated in sq. free Britannica, Inc. Also see BATH KITCHEN VENT DUCT SHARING. a duct that actually measures 8 inches must. • Where possible use a single exhaust duct per dryer Sub Title • Dryers are to run with a positive outlet pressure. 14 "splitter vanes" and smacna hvac duct construction standards, third edition, figures 4-2 and 4-9 and charts 4-1 and 4-1m. This calculator is designed to give the approximate weight of sheet metal, based on length, width and thickness. Industrial Insulation Product Distributor. , square versus 45 ° entry taps, conical versus straight taps, etc. see the SMACNA Architectural Sheet Metal Manual, HVAC Duct Construction Standards, and the National Electrical Code. This helps to equalize the duct pressures and balance the airflow. Spiral Duct and Fittings Construction Standards Air Distribution Corporation Air Distribution Corporation Spiral Duct and Fittings are manufactured in accordance with applicable SMACNA, ASHRAE and SPIDA standards. OEM Capabilities. With spiral seam. 104(B) FPN]. Aerodynamically shaped blades are individually adjustable. Touch up the rivet heads with sealant and be sure to check the joint for any sealant voids. These surfaces resist sludge and mineral deposit build-up and provide a Williams and Hazen C factor of 150. is a Thailand company with more than 20 years of experience in manufacturing HVAC duct systems and cleanroom equipment with leading technologies to its customers. continuously galvanized sheet steel include appliances, almost always painted, HVAC duct, and electrical junction boxes. gauge, meter, or some other component that isn't designed to endure the test pressure can cause it to shatter under pressure creating high-speed flying objects. SECTION 15891 – LOW PRESSURE DUCTWORK CONSTRUCTION STANDARD_____ B. l All fittings are manufactured to slip fit into spiral duct. CHAPTER 2 LAYOUT AND FABRICATION OF SHEET-METAL AND FIBER-GLASS DUCT As a Steelworker you are required to operate sheet-metal tools and to apply basic sheet-metal layout. Using a duct calculator. As an equation, this is written:. 2mx3m) sheets, which can be scored and folded as needed to fit. org TPI Truss Plate Institute, Inc. Provide exhaust and supply duct system shop drawings showing the duct size, duct gauge, length, slope, cleanouts, and connection with the hood and exhaust fan. Model: #GVL0052-A. 047 wire which is 51. The maximum allowable exhaust duct length shall be determined by one of the methods specified in Section 504. They are only typical values, which SHOULD BE VERIFIED for each application. Learning Objective 2 Successful completion of this module prepares trainees to: Explain how to determine specific duct characteristics based on the expected pressure and size. Install pressure gauges with pulsation dampers. High Velocity Duct Systems: High-velocity (HV) duct systems are characterized by air velocities in the range of 2500 to 3500 fpm. 29-33mm free through a bit. Stainless steel will not rust and corrode like galvanized steel does. SMACNA Class “K” transverse joint, the Ductmate ‘35’ Systems are comparable to the SMACNA Class “J” transverse joint and the Ductmate ‘25’ Systems are comparable to the SMACNA Class “F” joint. Check that all accessory items are accounted for and damage free. Based on formulas in ASHRAE Fundamentals – Duct Design, Chapter 34, the following minimum intake and discharge 100% Effective Duct Lengths (EDL) are recommended for: VertiCool units • 3 thru 5 tons = 3. Construct duct connections with 1 in. Install insulation on round and flat-oval duct elbows with individually mitered gores cut to fit the elbow. 5 STI SpecSeal SSS, 1⁄4". Sheet Metal Werks offers the most revolutionary duct delivery systems available in the Chicago area. Meets SMACNA rigidity Class H Duct Connection Products. Extended flanges 4. Page i ANSI / ACCA 5 QI - 2010 (HVAC QI Specification) A. Actually, I just like books. The above system will ensure speedy and proper site measurement and. Ductwork shall have the following pressure classes: Supply: 2 inches Return & Relief: 1 inch General exhaust duct: 1 inch. DOUBLE WALL ROUND AND OVAL DUCTWORK. • Select Gripple size based on gauge of steel and duct dimensions (e. DUCT SIZE DUCT GAUGE JOINT LENGTH WIDE SIDE CONNECTOR NARROW SIDE CONNECTOR 0 - 12" 26 59" FLAT SLIP T-6 24 GA FLAT DRIVE T-1 24 GA 13 - 18" 26 59" STANDING SLIP T-11 26 GA FLAT DRIVE T-1 24 GA 19 - 30" 26 56" T. SMACNA CAD Standard Second Edition v NOTICE TO USERS OF THIS PUBLICATION 1. SPIRAL DUCT SMACNA GAUGES SPIRAL LOCK SEAM – GALVANIZED 1985 – 1995 – 2005 SMACNA STANDARDS – TO +10 in WG 1985 1995 2005 Dia. Positive Pressure Positive Pressure Negative Pressure Diameter Spiral Spiral Spiral Duct Fittings Duct Fittings Duct Fittings 3" - 14" 26 26 26 24 26 24 IS" -26" 26 24 24 22 24 22. the sizes and location of roof-mounted duct supports are shown on the mechanical drawings. Download HVAC Duct Construction Tables According to SMACNA and Rule Of Thumbs - PDF. SHEET METAL WORKERS LOCAL 100 D Duct & Sheet Metal LL. area of duct 25 to compensate for screen 20 mm. Calculation of No of sheets. No changes in these AHRI - SMACNA Guidelines shall be made without the approval of AHRI and SMACNA. Fabricate duct fittings to match adjoining ducts, and to comply with duct requirements as applicable to fittings. They did not exceed SMACNA Deflection Standards. Height as required 3. Longitudinal lock - 22 gauge 2. Measurement sheet covering each fabricated duct piece showing dimensions and external surface area along with summary of external surface area of duct gauge wise. Your curve (what you actually measured) is compared to standard STC. Friction charts have been developed that give the pressure drop through ducts as a function of airflow rate and duct diameter (ASHRAE 1993, SMACNA 1990). With spiral seam. Where exhaust duct construction is not specified in this chapter, construction shall comply with Chapter 16. Horizontal Pathway Systems. Single Wall Round - 1995 SMACNA Standards Standard Gauge Chart Diameter Spiral Pipe Long Seam Pipe Fittings 3" - 13" 14" - 17" 18" - 20". Fastener Spacing: Fastener spacing for gasketed fas- teners depicted in the construction details generally is be-tween 8 inches and 24 inches. I pulled it out the other day to scan it. Other materials are available. 810 Cold air boot, collar, duct 45- 65' EL AIR FLOW DYNAMICS & DUCT SIZING REFERENCE GUIDE SUPPLY OR RETURN DUCT SIZE/CAPACITY (. 016" thickness for external duct. Duct Fan (Tubeaxial)—An air moving device in which the air flow is parallel or axial to the shaft on which the propeller is mounted. But all instruments measuring inches wg are based on the principle of the water gauge, which is explained in Figures 8. sections, for a total. • Where possible use a single exhaust duct per dryer Sub Title • Dryers are to run with a positive outlet pressure. Title • Maximum exhaust duct length: • Type 1 dryers = 35 equiv. 5m Double corrugated. 1 Specified length. Review the pre-test safety plan, including the piping system drawings, just Guide to Pressure Testing Safety. pdf] - Read File Online - Report Abuse. 10 SMACNA CAD Standard Second Edition CHAPTER 4 DUCT SYMBOLS CHAPTER 4 DUCT SYMBOLS FILE NAME SYMBOL DESCRIPTION DS001 FT Top of duct fitting is flat DS002 FB Bottom of duct fitting is flat DS003 TD 6” Top of duct fitting down 6" DS004. · Pipe and fitting gauge to meet or exceed SMACNA guidelines. Sleeves shall be of the SAME GAUGE or heavier as the duct to which it is attached, if one of the breakaway connection is used as de-fined in the SMACNA Fire, Smoke and Radiation Damper Guide for HVAC Systems (Fig. SMACNA HVAC Duct Design Calculator, or equal tool, for sizing duct 03103-13 Annealed (soft) copper tubing Tape measures Handheld tubing cutters Hacksaws Reaming tools Nylon abrasive pad and sand cloth Bending springs Handheld tubing benders Flare fittings Flaring tool sets Flare nut wrenches Various compression fittings with ferrules Swaging tools. Address:4201 Lafayette Center Drive Chantilly, Virginia 20151-1219 Phone number: (703) 803-2980. est Plug Airvent VTPT www. The Gripple Plus Anchor Kit for wooden posts includes a pre-cut, fused length of wire rope, a Gripple tensioner, a wire thimble and a twister to keep the tail wire neat and tidy. Type of Duct to Sleeve Gauge Duct Dimension Sleeve Connection Permitted 14 ga. 3 or ASHRAE 90. 5 Blanket, 41⁄4" depth. This enables users to. How to verify the velocity and airflow in a duct using a Pitot Tube Anemometer Using A Pitot Tube Anemometer to calibrate the volume flow transmitter used in the duct. This series of grilles minimizes pressure loss and noise levels. is an established manufacturer of cast aluminum full or half blast gates, fabricated gates in Carbon or Stainless Steel, and Automatic Gates using pneumatic cylinders. • Heater flange and boxes are constructed of 20 • With required information regarding exact blower. The transverse. o c) Static regain method. It is the only calculator in the industry to include the 0. As an ANSI-accredited standards developing organization, SMACNA standards and manuals address all facets of the sheet metal industry, from duct construction and installation to air pollution control, energy recovery and roofing. Flat Oval Duct is to be used in positive pressured applications only. Refer to the SMACNA Architectural Sheet Metal Manual for additional information about detailing and installing flashings. Lab personnel rarely crawl up onto the roof to check out their exhaust fans and stacks. Will the lack of an expansion joint hamper or destroy the function of the facility, or cause damage to the structural or architectural compo-nents?. 26 BTU in/hr Ft Deg F. The chart below shows the minimum fan outlet duct sizes and straight lengths recommended for optimal fan performance. Learn more Info for Support SMACNA Duct Standards Free PDF SMACNA Duct Standards Online SMACNA Standards. Please review Peppertree literature on Round Duct Specifications, SMACNA Standards, Weight Tables and. 2mx3m) sheets, which can be scored and folded as needed to fit. Outer shell construction follows Precision Duct gauge specifications for standard single wall rectangular construction, and charts indicating those specifications can be. Qualifications Y This is a test and certification for TECHNICIANS in the HVAC industry. 75 * All dimensions are in inches ± 0. with your fist to help slip the fitting into the duct. Gauge Decimal Lbs. Processing may include polishing, or the applying of protective plastics which will decrease or increase a sheet’s thickness respectively. Sheet Metal Gauges & Weights Home. Stainless steel: 26 gauge, 24 gauge, 20 gauge, 18 gauge, 16 gauge, 14 gauge, 1/8" and 1/4". Fabricate duct fittings to match adjoining ducts, and to comply with duct requirements as applicable to fittings. Address:4201 Lafayette Center Drive Chantilly, Virginia 20151-1219 Phone number: (703) 803-2980. DUCT SIZE DUCT GAUGE JOINT LENGTH WIDE SIDE CONNECTOR NARROW SIDE CONNECTOR 0 - 12" 26 59" FLAT SLIP T-6 24 GA FLAT DRIVE T-1 24 GA 13 - 18" 26 59" STANDING SLIP T-11 26 GA FLAT DRIVE T-1 24 GA 19 - 30" 26 56" T. Back of calculator has equivalent feet of straight duct for commonly used fittings, corrected pressure drop chart, and many HVAC formulas. Click here for a Gauge to mm Conversion Chart. SMACNA standard access doors (double skin only) have been tested to higher pressures but will not be constructed per SMACNA Standards and will leak more. Actually, I just like books. Stock Catalog 2020. Lateral motion will not cause loss of vertical support. 47 SERIES A Nominal Pipe Size NPS (inches) Outside Diameter of Flange (inches)(O. 2003-- this entry appended to this thread by editor in lieu of spawning a duplicative thread. Standard gauges in boxed area, weights may vary slightly. continuously galvanized sheet steel include appliances, almost always painted, HVAC duct, and electrical junction boxes. SMACNA CAD Symbols - DXF Format Air Duct Leakage HVAC 2011 Technical Paper (PDF file) SMACNA published the HVAC Air Duct Leakage Test Manual in conjunction with the SMACNA HVAC Duct Construction Standards. Language: English. Gauges shall conform to SMACNA or ASHRAE duct standards. You will find all types of mounting styles including. o Vanes location & number of vanes required o Duct Material Calculation- GI sheet, Total sheet required in kgs. Related Commercial Resources ASHRAE Handbook -- Fundamentals Chapter: Duct Design (Clicking on a company's name will take you to their web site. refer to smacna hvac systems duct design manual, fourth edition, section 5. · Fittings can be constructed in any minor/major combination under 83" major. 8" K Style 12 Feet. 05 OPTIONAL MATERIALS AND FEATURES 1. inch (psi) 145. Loaded air filters c. galvanized and PCS spiral duct 6” and larger is corrugated unless ordered without corrugations. Starting Collar Take Off - Snap Together. Florida Tech Design and Construction Standards Ductwork 15890-2 of 5 Facilities Planning & Design A. decreases through ductwork because of friction at the duct walls, and this pressure drop depends on the air speed, duct diameter and roughness of the duct walls. For sizing either the trunks or branches simply align the friction rate with the CFM and the duct size will be displayed NOTE: Whether using a friction chart or duct calculator, always check the velocity on the friction chart or duct calculator. com A 30” sq min, 1 1/2 lb to 4 lb lead, or 16 oz copper flashing adhered onto. com), unless such software capability is provided by the service provider. Coordination Drawings shall be of appropriate scale but shall not be smaller than a scale of 1/4-inch equals one foot. Above 12"w x 12"h (305 x 305) - 2" w. 301-864-3828. meters or kilograms. DIAMETER Spiral Pipe 03" diameter, 28 Gauge = SPIRAL0328 Spiral Pipe 60" diameter, 24 Gauge = SPIRAL6024 FOLLOW THE EXAMPLES LISTED BELOW FOR SPIRAL PIPE STOCK NUMBERS: Spiral Pipe Page 1 June 1, 2019 28 GAUGE 26 GAUGE 24 GAUGE. Say Reynolds number as 4500. The sensors used in these instruments are either thermo-anemometer (hot wire) or pressure sensors. Consequently, the total pressure (or total energy) of air flowing in a duct system is generally equal to the sum of the static pressure and the velocity pressure. Examples for applying charging statement for adding text, deleting text and revising text Add new text as follows (applies only when adding a new section or all new text): Water Service. for all ducts between the supply fan and variable volume control boxes and 1” (250 Pa) w. 2 SMACNA stands for Sheet Metal and Air Conditioning Contractors’ National Association. The exhaust duct must lead as directly as practical to the building's exterior to decrease the fire hazard and must comply with the following. 5 Blanket, 41⁄4" depth. (34)mesh Smacna duct standards. The manual is written for contractors, building engineers, and technicians, as well as for bal-. The ductwork in your commercial facility, like the ductwork in your home, is the critical channel that carries heated and cooled air from your HVAC system to your offices, warehouses and work areas. decreases through ductwork because of friction at the duct walls, and this pressure drop depends on the air speed, duct diameter and roughness of the duct walls. Maximum length - 3. One of the significant changes from the third edition is the addition of information on spray and aerosolized duct sealants. Duct construction, including sheet metal thicknesses, seam and joint construction, reinforcements, and hangers and supports, shall comply with SMACNA's "HVAC Duct Construction Standards -Metal and Flexible" and performance requirements and design criteria indicated in "Duct Schedule" Article. STP-ECRTS EXHAUST VENTILATION EQUIPMENT. Owner shall maintain and safeguard at least one original printed record version of the. Certain Connectors are available with 300L series or 316L series stainless steel or aluminum. 44" Duct, 24 gauge = No. Find information and resources for current and returning patients. Stock Catalog 2020. Calculator is based on Chapter 1 of SMACNA's Architectural Sheet Metal Manual 7th Edition (ASMM). Base metal shall be AISI 300 series stainless steel, constructed to a duct gauge and reinforcing system in accordance with "SMACNA Round Industrial Duct Construction Standards" with a Class 1, -6" WG schedule. -Measure air flow (CFM) needed to equalize pressure in ducts to 0 Pa. Since little dynamic loss data for oval fittings are available, the data for rectangular fittings are used as an approximation. duct board can provide an alternative to wrapped or liner insulation. performance charts, brochures and other data which are prepared by the Contractor or any Subcontractor, manufacturer, supplier or distributor, and which illustrate some portion of the Work. The Blastgate Co. Refer to page 2 for more information. MEDIUM BOX 300-700 cfm (142 -330 I/s) 20(Discharge Duct 12" x 12" [305 x 305]) 3. Metric Sheet mm. dictate the type of duct used, as well as such design parameters as the wall thickness (gauge). The smaller the number, the thicker the material. Toledo, Ohio 43614. The Pocket Installer is a guide describing procedures for the installation of air duct systems manufactured from Johns Manville air duct products and accessories. The comparison of different unit systems is shown in the table below. Duct sealant 8. Cleveland, Ohio 44147. Friction in a system means the fan needs to work harder and this results in higher operating costs. A complete line of seam welded slip-joint fittings, designed especially for use with Spiral pipe, includes many types of elbows, crosses, tees, laterals, reducers and various accessories, fabricated from 20 gauge (other gauges available). Plus, we can custom fabricate rectangular ductwork for commercial and industrial applications according to your specifications in 3003-H14 aluminum, paint-grip. NFPA 96 clean-out. Maximum 10" W. The four legs on the base assembly should recess into the floor and the base should rest on all four outside flanges. Apply duct sealer to this exposed area. 5 energy is due to elevation above a reference datum and is often negligible in HVAC duct design systems. Sheet Metal Guage Tolerances. Standard roll length - 100 ft. 25) Sheet Metal Gauge Chart of Sizes Keywords: sheet metal gauge chart, sheet metal gauge size, sheet metal thickness, sheet metal gauge. mm/kw) (1 sq. static pressure. slope, grease can stick to the sides and top of duct (refer to pictures several slides ahead) Advantages of Factory-Built Grease Ducts vs. Identify and describe the contents of the SMACNA HVAC metal and flexible duct fabrication. LAYOUT AND FABRICATION OF SHEET-METAL AND FIBER-GLASS DUCT As a Steelworker you are required to operate sheet-metal tools and to apply basic sheet-metal layout techniques. MANUAL - 50 Hz. The results were dramatic! 0. The tolerances in the table and attachments reflect current manufacturing practices and commercial standards and are. So far in this series on Duct and System Design we have discussed heat transfer, duct leaks, and heat load calculations. INSTALLATION. Double wall can be made with a perforated inner liner for accoustical and thermal benefits or a sold inner liner for primarily thermal benefits. 01 September 25, 2007 Page 2 of 14 Duct Leakage Test Manual. 634 24 8x3 10 3. for pricing and availability. SMACNA CAD Symbols - DXF Format Air Duct Leakage HVAC 2011 Technical Paper (PDF file) SMACNA published the HVAC Air Duct Leakage Test Manual in conjunction with the SMACNA HVAC Duct Construction Standards. Each fitting and configuration helps the overall commercial ductwork performance. 51 through 0. com • E-Mail: [email protected] Duct Sizes: Inside clear dimensions. com Design Information CFM - Air Volume in cubic feet per minute. 012 30 8x3 12 2. The information gives the leak-age rate per joint of duct at various pressures. MANUAL - 50 Hz. 04 22 22 22 22 5" 4. Section 15840 Ductwork and Duct Accessories 00020-1 11/17 SECTION 00020 INVITATION TO BID PART 1 - GENERAL. Download HVAC Duct Construction Tables According to SMACNA - PDF - Free Ductwork Tables for Sizing and Construction of Air Ducts. Although each installation may vary, the tools/supplies listed below provide a good foundation to work from: • hammer • screwdriver • tin snips • sheet metal screws • metal hangers • duct, pipe & fittings* • sabre saw (*will vary by installation) 2. Rectangular Elbow Silencers: 22 gauge 3. The grease duct system includes all components for a complete exhaust system from the hood to the exhaust fan inlet. 4 Unfaced FyreWrap® Elite® 1. I neck (by others) VCD riveted to G. Finally, round and oval duct can help promote healthier indoor environments. The duct friction pressure drop is assumed to be 0. bod bldg bkr bhp bfv bff bel bd b capacity condensate drain cubic feet per hour cubic feet per minute chiller cast iron circulating centerline ceiling concrete masonry unit cleanout column connect, connection cleanout to grade chlorinated. The following chart illustrates approximate weights for spiral pipe. 016 14 6x3 12 2. They are only typical values, which SHOULD BE VERIFIED for each application. Duct Sizes: Inside clear dimensions. A - B is the offset distance and C being the center, follow C to the right and you can see Point 3 which is centered with. Sheet metal fabricators also have these same choices. •Duct diameters over 36" (914) and up to and including 191" (4851) total perimeter – maximum 8 screws. Rectangular Silencers, including STC-rated models: 22 gauge 2. 1 through 506. com, or Bluebeam PDF Revu, www. 810 Cold air boot, collar, duct 45- 65' EL AIR FLOW DYNAMICS & DUCT SIZING REFERENCE GUIDE SUPPLY OR RETURN DUCT SIZE/CAPACITY (. FIBROUS GLASS INSULATED HVAC DUCT SYSTEMS 4 Sheet metal ducts with exterior fibrous glass exterior insulation Flexible Blanket Fibrous glass duct wrap insulation is designed for application to the exteriors of commercial and residential sheet metal heating, ventilating, and air-conditioning ducts and plenums operating at temperatures between 40˚F. Frame duct openings with 18 gauge curb sections level with perimeter curb sections, minimum height 18". 3 FyreWrap ® Elite® 1. 55 x (A) (P)0. duct For high velocity duct system gauge ranges from 26 to 16. 1, last sentence (see also Amendment No. 75 RAB717 17. The results of these certified tests which permit the variation are shown on the back page of this manual. Enlarge pipes smaller than 2-1/2 inch for installation of thermometer sockets. Engineering Co. increase the height, as required, to comply with the recommendations of the dispersion analysis. 9, Section 5. Sheet metal thickness is denoted by gauge, sometimes spelled gage, which indicates a standard thickness before processing. The Blastgate Co. Spiral Pipe 3” - 16” 26 18” - 26” 24 28” - 40” 22 42” - 50” 20 52” - 84” 18 Gauge Schedule. use this detail for fume hoods,biological safety cabinets, isolation room exhaust and any other applicable area. The numbers we calculated using the ASHRAE methods seemed too high to believe. Flat oval spiral duct is fabricated using a lock seam method, with a double bead in between each lock seam to reinforce its strength and durability. Materials SEMCO spiral duct and fittings are fabricated from galvanized steel meeting ASTM A653 and A924. These values are defined as the flow rate through the valve required to produce a pressure drop of 1 psi. Free Ductwork Tables for Sizing and Construction of HVAC Air Ducts. is an established manufacturer of cast aluminum full or half blast gates, fabricated gates in Carbon or Stainless Steel, and Automatic Gates using pneumatic cylinders. SMACNA-HVAC Duct Construction Standards-Metal and Flexible, Third Edition 2005. Identify and describe the contents of the SMACNA HVAC metal and flexible duct fabrication. Basic Round Diameter: As used in this Article, is inside diameter of size of round duct. craftsman-book. Fastener Spacing: Fastener spacing for gasketed fas- teners depicted in the construction details generally is be-tween 8 inches and 24 inches. 1 Specified length. , 2005,it was found that in some tests, the Ward Angles (E,H and J) permitted a more liberal interpretation of the SMACNA Tables. EHG Oval components are constructed from galvanized steel of thickness conforming to latest SMACNA's HVAC Duct Construction Standards for +10" water gauge pressure. UNIVERSITY OF PENNSYLVANIA Design Standards Revision July 2019 DUCTWORK 233100 - 4 B. Coil/ Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement" for 2 in. Precision Duct Systems 4570 Commerce Cir SW • Atlanta, GA 30336 Phone (404) 505-2542 Spiral Pipe All pipe is fabricated from hot-dipped G90 galvanized steel in gauges that meet or exceed SMACNA standards for spiral ducts. The exhaust duct connection is to be a continuous liquid- tight weld. Safety Always work safely when installing metal products and use extreme caution on the roof at all times. 7 inches of water gauge; a common duct pressure of 0. Maximum 10" W. GROWTH AND STABILITY IN OUR INDUSTRY. Gaugesize and. Weld with a non-ferrous filler wire, such as silicon bronze or stainless steel filler wire. duct For high velocity duct system gauge ranges from 26 to 16. 5m Double corrugated. dictate the type of duct used, as well as such design parameters as the wall thickness (gauge). Provide gauge cock to isolate each gauge. Supplier of Galvanized sheet metal duct, hvac duct supplies, air conditioing ductwork, flex duct, round, dampers. Furthermore, structural steel members up to 1. Special Made Fittings. 0003 roughness factor duct friction loss data for designing straight, round or rectangular sheet metal ducts. A closed return duct system should be used. Single Wall Spiral Duct: based on 10' hanger spacing HOW TO USE THE CALCULATION CHARTS Select Gripple size based on gauge of steel and duct dimensions (e. Calculating Loads Thursday, April 28 HVAC Sizing Chart. represented in the dimensional chart. Now you add the allowance for the s-slips and drives. bod bldg bkr bhp bfv bff bel bd b capacity condensate drain cubic feet per hour cubic feet per minute chiller cast iron circulating centerline ceiling concrete masonry unit cleanout column connect, connection cleanout to grade chlorinated. AIR CONDITIONING INSTALLATION CERTIFICATION Certification Information Scope - Tests a candidate's knowledge of the installation, service, maintenance, and repair of HVAC systems. Download SMACNA-HVAC DUCT CONSTRUCTION STANDARDS. E 22-gauge Galvanized Dual Wall U 120v, 1 Ph, 60 Hz, 3 Step F 22-gauge Galvanized Low Temp V 240v, 3 Ph, 60 Hz, 1 Step G 20-gauge Aluminum W 240v, 3 Ph, 60 Hz, 2 Step H 22-gauge 304 Stainless Steel X 240v, 3 Ph, 60 Hz, 3 Step J 20-gauge 304 Stainless Steel Y 480v, 1 Ph, 60 Hz, 1 Step K 22-gauge 316 Stainless Steel L 20-gauge 316 Stainless Steel. Coordination Drawings shall be multi-color prints with each system printed in a separate and unique color. Therefore the pressure loss is 0. There’s a system behind what JACOB does: top quality standards, an outstanding innovative spirit, and an uncompromising choice of materials. 54" width, and built per SMACNA HVAC Duct Construction Standards. Industrial duct is a broad classification of ductwork used in industry for many diverse applications. 688 18 6x3 14 2. During the rolling process the rollers bow slightly, which results in the sheets being thinner on the edges. 394” Slit Coil comes in closer to. One Angle Installation: When there is no access to install the damper from both the side then retaining angle to be connected to wall as well as to the damper by 4. HVAC Systems Duct Design, SMACNA, 1985 lists the fittings available for round and rectangular ducts. Sheet Metal Gauges & Weights Home. Related Topics. SMACNA allows 5% moisture intrusion for fiberglass liner, BUT:For every 1% mosti uer gan thi , en i suoailtn eecff vietness drops 75. Please Note: Drawings below are generic details to show design intent only. The equivalent thicknesses differ for each gauge size standard, which were developed based on the weight of the sheet for a given material. Provide gauge cock to isolate each gauge. 4 m/s), temperatures up to 250˚F (121˚C) and maximum internal pressures of ± 2" (51mm) water gauge. Although each installation may vary, the tools/supplies listed below provide a good foundation to work from: • hammer • screwdriver • tin snips • sheet metal screws • metal hangers • duct, pipe & fittings* • sabre saw (*will vary by installation) 2. Fire Alarm System 15. Use insulated duct or duct board in unheated spaces. • Flanged connections can be factory installed or delivered loose. Study on Air Distribution systems (SMACNA & DW-142) : Types of Ducts, Duct fittings, Dampers, Flexible ducts, Classifcation of Duct(Low, Medium & High pressure), Duct gauge selection, Comparison between different shapes of duct, Duct Fabrication, Insulation & Installation procedure, Vanes location & number of vanes required, Type of Duct. Gauge selection for galvanized steel (ASTM A653), and paint grip steel. feet (each elbow = 5 feet). • The Ductwork Sizing Chart shows the minimum fan outlet duct sizes and straight lengths recommended for optimal fan performance • Units with twin blower must have a common discharge plenum Follow SMACNA guides and recommendations for the remaining duct run. 10 feet minimum height is shown. As an ANSI-accredited standards developing organization, SMACNA standards and manuals address all facets of the sheet metal industry, from duct construction and installation to air pollution control, energy recovery and roofing. HVAC Duct Construction Standards, Metal and Flexible, 1 st Edition, 1985-SMACNA HVAC Air Duct Leakage Test Manual, 1 st Edition, 1985-SMACNA. We corrugate our duct starting at 14" (Only Galvanized) 3. 2) Spiral • Choose required diameter • Choose required steel gauge • Chart shows correct Gripple size Rectangular • Add vertical & horizontal planes to determine total duct size (e. MANUAL - 50 Hz. All duct work, also known as blowpipe, including spiral pipe, fittings and flexible hose are truly modular and adaptable to metric, rolled edge, angle iron ring or any older dust collection components. Identify and describe the contents of the SMACNA HVAC metal and flexible duct fabrication. Seam Spiral Seam Long. All Duro Dyne Flexible Duct Connector utilize 24 or 28 gauge galvanized steel meeting ASTM-A-525 G60. Ensure sockets allow clearance from insulation. J-r ated Flange '2 0-gauge galvanized steel qvle ets SMACNA rigidity Class J for. Vit-S The Gripple VIT-S is the quick and easy way to manage your fruit trellising. com Created Date: 3/15/2005 8:04:26 AM Keywords: pipe span chart Subject: Pipe Span Chart Title: Pipe Span Chart Other titles. Will the lack of an expansion joint hamper or destroy the function of the facility, or cause damage to the structural or architectural compo-nents?. Related Topics. – Applicable to 20 gage or less and 3” w. 032" for seamless gutters and any other thickness for custom gutters. Fittings are manufactured with standing seam, welded seam, spot welded, or button punched locked construction. 28 gauge being the lightest not 30. Converting sheet metal gauge numbers to millimeters is as simple as following the chart below. 16" x 20" = 36") • Choose required steel. However, when the requirements of this specification section exceed SMACNA requirements, the requirements of. Delegated Duct Design: Duct construction, including sheet metal thicknesses, seam and joint construction, reinforcements, and hangers and supports, shall comply with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible" and performance requirements and design criteria indicated in the "Duct Schedule" Article and on the drawings. metal gauges duct schedule shall be based on smacna standards. SMACNA HVAC Duct Design Calculator, or equal tool, for sizing duct 03103-13 Annealed (soft) copper tubing Tape measures Handheld tubing cutters Hacksaws Reaming tools Nylon abrasive pad and sand cloth Bending springs Handheld tubing benders Flare fittings Flaring tool sets Flare nut wrenches Various compression fittings with ferrules Swaging tools. Master Flow 8 in. T-25a 31 - 42" 24 56" T. Single wall round duct made in galvanized steel gauges 18 to 26 according to size. The US Duct Pricing Guide includes duct specifications for sizes, connectors, material and prices for many of our products. Reglets & Flashing Our Reglet & Flashing Systems provide the ultimate in roof protection from moisture intrusion and wind uplift. Rectangular Stack Duct Starting Collar. The supply and return air duct connections at the unit should be made with flexible joints to minimize noise. Midwest Metal Fabricators' standard rectangular products are fabricated to meet SMACNA's 2005 Rev. Other radii and Standard sizes range from 4” Φ. 16 Up to 11” 40’ EL 12” to 15” 55’ EL 16” to 21” 75’ EL 22” to 27” 100’ EL 28” to 33” 125’ EL RETURN AIR SYSTEM No. Pull out slide has recommended duct velocities, recommended gauges for sheet metal, and much more. Leakage for 4" & 10" w. When properly assembled into a system, duct board offers low leakage and can be a cost effective option to duct wrap and duct liner systems. Inner skin. Loaded air filters c. The two largest values, i. com), unless such software capability is provided by the service provider. Engineering Co. Duct & Flange Dimension Guide The chart below lists the duct gauge sizes, angle flange dimensions and bolt patterns for Class I industrial duct, designed to operate at pressure class -6 WG. US Duct Leakage Testing Ri tRequirements - (SMACNA) Duct Class ½-, 1-, 2-inwg 3-inwg 4-, 6-, 10-inwg Seal Class CB A Sli T Transverse Joints, Seams Sealing Applicable ransverse Joints Only asvese Joints and Seams Jo s, Sea s and All Wall Penetrations Leakage Class (C L) – CFM Leakage per 100 ft2 @ 1 in H 2 O Rectangular Metal 24 12 6 Round. Although round duct work costs more to fabricate than rectangular duct work, it requires fewer stiffeners and is favored in many applications over rectangular ductwork. 0 INTRODUCTION The STP-ECRTS Exhaust Ventilation Equipment will be designed to support K-Basin sludge retrieval activities. 60) unless noted otherwise. 5-NFPA 13D-2014 [ Section No. Duro Dyne meets or exceeds the SMACNA steel requirements for flexible duct connector. Please note that ASTM states in specification ASTM A480-10a "The use of gage number is discouraged as being an archaic term of limited usefulness not having general agreement on. Model# SCF3. Actual costs will depend on job size, conditions, and options. Double wall duct and panel fill material 4. Inner Shell. SMACNA Fibrous Glass Duct Construction Standards. Coated stainless steel duct shall be constructed in full accordance with the specifications below: 1. UNIVERSITY OF PENNSYLVANIA Design Standards Revision July 2019 DUCTWORK 233100 - 4 B. provide roof duct supports a maximum of 8'-0" on center and at every elbow or branch. area of duct 25 to compensate for screen 20 mm. 54" width, and built per SMACNA HVAC Duct Construction Standards. This type of instrument is still new to me, but I wanted to share with you to be familiar with a pitot tube and it will also give you some ideas on how to use it. 4-6) and in NFPA 90A. The Pocket Installer is intended for use by mechanics, foremen, project superintendents, inspectors and other individuals involved in the installation and inspection of. footing ftg. Outer shell construction follows Precision Duct gauge specifications for standard single wall rectangular construction, and charts indicating those specifications can be. Stainless steel: 26 gauge, 24 gauge, 20 gauge, 18 gauge, 16 gauge, 14 gauge, 1/8" and 1/4". division 23 00 00—mechanical University Design And Construction (UDC) Appendix 4 Forms, Page 1 of 36 Designers’ Manual V. Standard elbows will have 1. SMACNA 2nd edition: Round, Oval and Flexible Duct Installation GuidelinesFull description SMACNA-Duct-Construction. foot (feet) ft. 55 x (A) (P)0. The sensors used in these instruments are either thermo-anemometer (hot wire) or pressure sensors. In many cases, the cost of the equipment is simply too much given the small amount of customer requirements for the coating. Gauge of duct & Thickness of Gauge. It is better to join the pipes with foil-backed duct tape. How to verify the velocity and airflow in a duct using a Pitot Tube Anemometer Using A Pitot Tube Anemometer to calibrate the volume flow transmitter used in the duct. A - B is the offset distance and C being the center, follow C to the right and you can see Point 3 which is centered with. Master Flow 6 in. As an ANSI-accredited standards developing organization, SMACNA standards and manuals address all facets of the sheet metal industry, from duct construction and installation to air pollution control, energy recovery and roofing. Architectural panels are usually flat, but are also available in some profiles such as striated or light mesa (planked). o c) Static regain method. WELCOME TO UPSTATE STEEL For nearly 20 years, Upstate Steel has provided machine and fabrication shops, quarries, contractors, masons, welders, recycling centers, homeowners and more throughout Western New York and the United States with a full complement of steel, stainless and aluminum products and services. Install insulation on round and flat-oval duct elbows with individually mitered gores cut to fit the elbow. The product tag cloud shows the different tags (keywords) associated with products. "SMACNA construction," using gauges and reinforcing that followed tables in the 2005 SMACNA HVAC Duct Construction Standards — Metal and Flexible. New USP guidelines may present challenges for compounding facilities. 5 STI SpecSeal SSS, 1⁄4". EHG Oval components are constructed from galvanized steel of thickness conforming to latest SMACNA's HVAC Duct Construction Standards for +10" water gauge pressure. for all ducts between the supply fan and variable volume control boxes and 1” (250 Pa) w. • Select Gripple size based on gauge of steel and duct dimensions (e. Spun Fittings are l all 20 gauge. SMACNA 1052. SMACNA Class “K” transverse joint, the Ductmate ‘35’ Systems are comparable to the SMACNA Class “J” transverse joint and the Ductmate ‘25’ Systems are comparable to the SMACNA Class “F” joint. pdf FREE PDF FREE PDF DOWNLOAD. Sheet Metal Thickness (Gauge) Chart in Inches Gauge Mild Steel Aluminum Galvanized Steel Stainless Steel 3 0. CONSTRUCTION (GAUGE): l All duct and fittings are made per SMACNA’s Duct l Construction Standards (+10” W. The chart on page X4 allows for a different solid brace member size if the maximum installed length is 5'-0" (1. tdc cnt-jnt-condu-loc @ tdc connector center of duct & @ tdc connector. Materials SEMCO spiral duct and fittings are fabricated from galvanized steel meeting ASTM A653 and A924. Other radii and Standard sizes range from 4” Φ. 1 Duct Materials. Available as Microsoft Excel spreadsheet download. Certain points may have higher or lower velocities, e. Materials for retrieving bike. • The Ductwork Sizing Chart shows the minimum fan outlet duct sizes and straight lengths recommended for optimal fan performance • Units with twin blower must have a common discharge plenum Follow SMACNA guides and recommendations for the remaining duct run. Other materials are available. Contains updates to the expected leakage rates for ductwork constructed to the SMACNA HVAC Duct Construction Standards-Metal & Flexible, duct leakage test procedures, recommendations on use of leakage testing, types of test apparatus and test setup and sample leakage analysis. Learn more Info for Support SMACNA Duct Standards Free PDF SMACNA Duct Standards Online SMACNA Standards. Gauge selection for galvanized steel (ASTM A653), and paint grip steel. Sizes shown are nominal. No changes in these AHRI - SMACNA Guidelines shall be made without the approval of AHRI and SMACNA. We offer the fastest delivery on clamp-together duct from 3" to 24" in 22-gauge to 10-gauge, depending on diameter, and flanged duct in diameters you can drive a truck through. Duct Height: Metal to metal inside dimension in inches, must be between 5 and 100. & SPIRAL REIN. Duct System Design Page 1. Supply & Return Duct configuration, Assigning Velocity of Air (FPM) to each Section of Supply and Return Duct Low Velocity system, Medium Velocity System and High Velocity System. In insulated ducts, access doors must be insulated, double-wall doors. To utilize the chart, count the number of clamps, (this equals the number of pieces), per size and multiply by the number given beside the corresponding diameter and under the applicable pressure. In general, the sooner water is directed out the better. Download smacna duct design manual guide PDF file for free. H Style (22 gauge) for large commercial and high-pressure applications Flange is designed to strengthen the duct wall and connect duct sections together. Oval Selection Chart. foot (feet) ft. Where space limitations prevent use of round duct or where shown on. 5 centerline radius. Because of the nature of thin sheet metal ductwork and the physics that come into play during the course of a fire,. Learning Objective 2 Successful completion of this module prepares trainees to: Explain how to determine specific duct characteristics based on the expected pressure and size. stud stud wall door gauge shall be selected. Gauges shall conform to SMACNA or ASHRAE duct standards. Use GreenSeam snap pipe duct and fittings from Grainger to help with your commercial and residential HVAC applications. Best Practice for Right- Sizing HVAC. at BATHROOM VENT DUCT MATERIALS. 14 "splitter vanes" and smacna hvac duct construction standards, third edition, figures 4-2 and 4-9 and charts 4-1 and 4-1m. There’s a system behind what JACOB does: top quality standards, an outstanding innovative spirit, and an uncompromising choice of materials. Construction. DESCRIPTION: All Rectangular Ductwork 3" W. Consult the Duct Layout and Design Manual for more specific information on duct sizing. Although each installation may vary, the tools/supplies listed below provide a good foundation to work from: • hammer • screwdriver • tin snips • sheet metal screws • metal hangers • duct, pipe & fittings* • sabre saw (*will vary by installation) 2. • Install ductwork to comply with ASHRAE Fundamentals Handbook, SMACNA, NFPA 90A and local code. 0 0 voto positivo,. The major loss, or friction loss, in a circular duct in galvanized steel with turbulent flow can for imperial units be expressed. DUCT ELBOWS, SQUARE THROAT No. A negative pressure gauge and alarm is the only way to prove and document that your storage or processing area maintains negative pressure as required by USP standards. Construct duct connections with 1 in. The product can be used in heating and cooling systems which operate at velocities up to 5,000 fpm (25. stud stud wall door gauge shall be selected. * * All oval pipe of sizes not included in dimension chart must be welded longitudinally. Duct Accessories – and explain. bod bldg bkr bhp bfv bff bel bd b capacity condensate drain cubic feet per hour cubic feet per minute chiller cast iron circulating centerline ceiling concrete masonry unit cleanout column connect, connection cleanout to grade chlorinated. 4-6) and in NFPA 90A. Duct Cut Out Area Front of Hood 3” 3” Exhaust Plenum 16” Hood Length Hood Width 8” 1” Exhaust Plenum 12” Duct Cut Out Area 8” Figure 7 3. Loaded air filters c. In 1961, STC was introduced as the method for comparing various wall, ceiling, floor, door, and window assemblies. Standard insulation density is 1 lb per cubic ft with a thermal conductivity of. A = π x r² or A = 3. SECTION 15892 – MEDIUM AND HIGH PRESSURE METAL DUCTWORK CONSTRUCTION STANDARD_____ 2. SMACNA CAD Symbols - DXF Format Air Duct Leakage HVAC 2011 Technical Paper (PDF file) SMACNA published the HVAC Air Duct Leakage Test Manual in conjunction with the SMACNA HVAC Duct Construction Standards. DARTMOUTH COLLEGE DESIGN January 3, 2012 & CONSTRUCTION GUIDELINES 15890-METAL DUCTWORK & ACCESSORIES Page 4 of 9 2. Airflow Adjustment Charts for IRIS and IRIS-S dampers are shown on pages 6 & 7 of the PDF Brochure. While ventilating duct in industry is often specified within the range of low pressure and high pressure standards, as described in SMACNA manuals for these criteria, we usually refer to in-dustrial duct as that which conveys air or gas. Gauge Decimal Lbs. options custom lengths available raw end available duct width or depth of 98" and larger requires. 1" STATIC PRESSURE DUCT CONSTRUCTION STANDARDS FOR ±1" WG GALVANIZED, 304 STAINLESS STEEL & 316 STAINLESS STEEL by Production Products. When we measure water column with our tools it is calibrated at atmospheric pressure or the gauge scale instead of the absolute scale. LAYOUT AND FABRICATION OF SHEET-METAL AND FIBER-GLASS DUCT As a Steelworker you are required to operate sheet-metal tools and to apply basic sheet-metal layout techniques. Wall openings drawings wherever duct is passing through walls 22. Standard gauge galv. Identify the procedures associated with joining and installing sheet metal duct. Extended flanges 4. SHEETS GUAGE THICKNESS IN mm WEIGHT PER SQ. How much ductwork will be needed to complete the installation? 3. mm/kw) (1 sq. positively attached to the duct within 2 in. com Table 1 provides the ASTM product specification numbers for coatings used in the construction industry, the coating weight designations and the specified coating compositions. Duct Accessories – and explain. Materials for retrieving bike. Less surface area, no corners and better airflow reduce the chance of dirt and grime accumulating inside the duct and becoming a breeding ground for bacterial growth. seal all duct joints with duct sealer compount to have ducts air tight. Submittal forms must be completed to indicate all required elements of duct construction. Materials SEMCO spiral duct and fittings are fabricated from galvanized steel meeting ASTM A653 and A924. o b) Equal friction Method. • Design allows virtually unlimited duct size match-ups. No changes in these AHRI - SMACNA Guidelines shall be made without the approval of AHRI and SMACNA. Steel manufacturing and air condition national association (SMACNA) Width of the duct Gauge 0" to 36" - 26 G 37" to 48" - 24 G 49" to 72" - 22 G 73" to 84" - 20 G 85" to 108 - 18 G Above 108" - 16 G Chillers (Figures 3 and 4) are large central systems, which use the primary refrigerant to chill water. In actual practice, other instruments that are more convenient to use, such as an electronic manometer (Figure 7), are used to measure inches wg. Kynar Galvalume (Steel) for metal roofing and gutters: 24 gauge. Duct and register sizing. J-r ated Flange '2 0-gauge galvanized steel qvle ets SMACNA rigidity Class J for. Certain points may have higher or lower velocities, e. I neck (by others) V. Flat Oval to Round 0. Find SMACNA software downloads at CNET Download. Leakage for 2" w. HVAC Duct Construction Standards, Metal and Flexible, 1 st Edition, 1985-SMACNA HVAC Air Duct Leakage Test Manual, 1 st Edition, 1985-SMACNA. 7 mm) channel strut. Gauge outlines and classification in the SMACNA HVAC Duct Leakage Test Manual. SMACNA CAD Standard Second Edition Yard Cleanout Yard Year Z Zone 3. Refer to the symbol legend sheet for special symbols used in a particular set. 01 September 25, 2007 Page 2 of 14 Duct Leakage Test Manual. Duct sizing as per Aspect Ratio Finding Duct size using Ductulator Calculation of Number of sheets for Duct Gauge selection for Sheet Metal Bill of Materials for Duct Network/ li > Selection of Diffusers and Grilles Duct Routing – Preparation of single line diagram (SLD) Preparation of Layouts (Double line Diagram – DLD) as per SMACNA rules. HVAC Systems Duct Design, SMACNA, 1985 lists the fittings available for round and rectangular ducts. 24 gauge is use for the duct size up to 750 mm (30") and thickness is 0. Galvanized G60 and G90 Phosphatized (Paint Grip) 304L Stainless Steel 316L Stainless Steel. Slip the heater into the duct until the hole is completely covered by the flanges around the heater 5. DESCRIPTION: All Rectangular Ductwork 3" W. o b) Equal friction Method. IN M/Ton 6x3 10 3. Master Flow 8 in. The types of fittings to be used based on the designer's calculations of fitting losses (i. The sensors used in these instruments are either thermo-anemometer (hot wire) or pressure sensors. This guide covers standard specification for seamless, straight-seam welded, and cold worked welded austenitic stainless steel pipe intended for high-temperature and. JM TPO roofing systems are known throughout the commercial roofing industry for top-notch performance on low-slope roofing. Our product line of air distribution solutions includes: flexible ducts,. The new venting tables were developed by Battelle under contract (GRI-5088-245-1728) to the Gas Research Institute (GRI). Written by Chris Deziel; Updated December 14, 2018. Spun Fittings are l all 20 gauge. Pull out slide has recommended duct velocities, recommended gauges for sheet metal, and much more. CONSTRUCTION (GAUGE): l All duct and fittings are made per SMACNA’s Duct l Construction Standards (+10” W. Sheet Metal Werks, Inc. Process duct work may be round or rectangular. Compressed 33%. Starting Collar Take Off - Snap Together. As an equation, this is written:. Research proved that duct leakage could be well defined as a function of the static pressure and the surface area of the duct. naces, the enclosed venting tables must be used for fan-assisted combustion system central furnaces. COURSE CONTENT 1. SMACNA Fibrous Glass Duct Construction Standards. l Stamped Fittings are all 22 or 24 gauge. All gauges and weights are for galvanized steel.