Spiral ducting can be used to great advantage over ordinary circular or rectangular ducts. This means 18” x 34” flat oval spiral duct will have the same friction loss as 25.7” round spiral duct. narrowscope duct construction: table 1-5 e4: a.13 2″ w.g. The types of fittings to be used based on the designer's calculations of fitting losses (i.e., square versus … Colour duct. Duct Fabrication Specifications & Duct Construction. for example duct size is2' X3' and length =10'. SPIRAL WOUND GASKETS First and Foremost The concept of spiral wound gasket construction was originated by Flexitallic in 1912, starting a new era in safe, effective sealing. Size for size, spiral ducting is structurally stronger and more rigid and therefore can be supplied in longer lengths, thus reducing the cost of installation and minimising any leakage from a system. There should be no scratches on the surface of the aluminum air duct and accessories. Model # Diameter Carton Qty. Specialty Metals available for Spiral and Rectangular Ductwork Provided here is the rectangular duct sizes chart for your personal reference and this chart / table shows the duct size (cfm) and their equivalent diameter in inches. Aluminum plate air duct bite joint: When the wall thickness δ of aluminum duct and accessories is less than or equal to 1.5mm, it can be connected by bite. For suspension and support, the weight of dust collection duct is calculated as the weight of the duct itself, plus the weight of the sawdust filling half the duct. Psychrometric Chart + Duct Calculator. narrowscope duct construction Spiral Welded Tubing. Size for size, spiral ducting is structurally stronger and more rigid and therefore can be supplied in longer lengths, thus reducing the cost of installation and minimising any leakage from a system. Ventilation - Systems for ventilation and air handling - air change rates, ducts and pressure drops, charts and diagrams and more; Related Documents . Before you get in to the estimation you have to consider two things in the drawing sheet. Spiral Pipe Diameter Available in 3-inch to 36-inch diameter per Sq. Spiral duct is light weight, reducing both manufacturing costs and the costs of installation. Gauge Decimal Lbs. Gauge and Weight Chart for Sheet Steel, Galvanized Steel,Stainless Steel, and Al September 1st, 2004 This article provides a quick reference to gauges of material, pounds per square foot, and gauge decimal equivalents. Mostly it would be in millimeters. The length of the typical spiral duct is 3~6m, and the length of a typical rectangular duct is the only 1~1.5m; and the connection of two spiral ducts requires only one pipe joint, while the connection of conventional rectangular ducts often requires a completely independent double flange system. Black mild steel. • Spiral duct under 36” can be single point hung. Table A3.1-7; SMACNA1 – Maximum Weight for Rectangular Duct Duct Width (in) Duct Height (in) Duct Area (ft2) Duct Weight (lb/ft) 30 30 6.3 17 42 42 12.3 29 54 54 20.3 46 60 60 25.0 54 84 84 49.0 103 96 96 64.0 129 54 28 10.5 34 60 30 12.5 39 84 42 24.5 74 96 48 32.0 97 108 54 40.5 110 120 60 50.0 121 RSC is a “Scotty” take-off. Other ... refer to the chart on 1-5 for more information on angle sizes. Ft. 1) units of height and width of a duct. † Minneapolis, MN 55448-3158 Phone: 763-755-7677 † 800-426-3643 † Fax: 763-755-6184 Spiral Galvanized Pipe Weight Table Download Design Tools LOREN COOK COMPANY. 2. Weight UPC Item Code (050206) TTO6 6" 10 11.6 lb 931141 RSC7X6 6" 6 7 lb 931660 Top Take-Offs For transition from air plenums or rectangular duct to round pipe or insulated lexible duct. In use, spiral duct is strong, efficient in reducing leaks, and resistant to mold. Weight (lbs) 3 7/8 x 1 x 10 gauge 3.062 6 9/32 4.312 0.70 This online air duct calculator is used to calculate the velocity of air flow feet per minute (FPM), and feet per second (FPS) through any shaped (circle, square or rectangle) ductulator with either diameter, sides or area. Gauge Sheet Steel Galvanized Steel Stainless Steel Aluminum Gauge Decimal Lbs. Fantech ... spiral ducting' 1 / 3 'flat oval duct eccomfg com may 3rd, 2018 - flat oval duct and fittings … No painting required, will last years outdoors. Spiral Manufacturing offers several methods to internally insulate single-wall spiral pipe using specially engineered insulation (duct liners) designed specifically for this application. A comprehensive duct layout indicating sizes, design airflows, pressure class, and routing of the duct system. x 34”, it is 25.7”. A full range of matching fittings are available for all sizes of Flat Oval ductwork. Spiral Helix offers an Ovalizer (also known as an Oval Spiral Pipe Machine) to manufacture oval ductwork. It has smooth interior for low … Information Required for Duct Construction 1. • Chart is for No.2 & No.3 hangers in standard 5’, 10’, 15’, 20’ and 30’ lengths. Flat Oval has many advantages over rectangular duct: better airflow, lighter weight, longer lengths, rapid availability, easy to adjust to length and easier to install. per Sq. Ft. Table 4 has nominal design weights for Vocational Woodworking Shop Dust Collection Systems using spiral lockseam duct. =100/(3.28X3.28) = sq.meter =9.3 sq.meter if the duct is24 gauge then kg/m2 =4.5 approximately multiply area(m2) by kg/m2 we will get weight in kg. find area ((2 +3)X2)X10' =100 sq.ft. O.D. Round Selection Chart. Duct work is otherwise called as duct system. Flat oval duct available on request Description: The AJS range of spiral wound rigid duct is specifically designed for the HVAC industry. δ> 1.5mm adopts gas welding or argon arc welding. The length of the rectangular duct size would range from 0.7mm to 0.9mm galvanised mild steel depending on size. Spiral Pipe and Fittings Product Pages. Single Wall Spiral Pipe Specifications for HVAC Industrial Ductwork Sheet Metal Connectors, Inc. spiral pipe is formed from a coil of metal into a rigid steel tube with a 4-ply spiral lockseam. Kennedale, TX 76060 Phone (817)478-0801 Fax (817)483-6571 Page 2 of 43 TABLE 1-1 … Building Tips Wright Flyer s Model Airplane Club. Spiral Pipe Gauge We manufacture spiral pipe in 18, 20, 22, & 24 gauge galvanized metal. These excel sheets will enable you to calculate or estimate the duct weight or the duct surface area. Stronger than other pipe – Our pipe is up to 20% stronger than smooth pipe systems of the same gauge, due to the added spiral reinforcement. Box 739 Kennedale, TX 76060 Physical Address 528 S. Eden Rd. • Allow spacing equal to 1/4 of duct diameter between the Gripple fastener and duct. metric conversion chart a.6 duct surface area in square feet per lineal foot a.7 galvanized sheet weight a.8 approximate weight-round duct in pounds per lineal foot a.10 area and circumference of circles a.11 angle, bar & channel properties a.12 2″ w.g. www.spiralmfg.com 11419 Yellowpine Street N.W. Find the area of duct first. Spiral ducting can be used to great advantage over ordinary circular or rectangular ducts. This psychrometric chart use ASHRAE equations at normal temperature and pressure region and is perfectly consistent with all ASHRAE charts of No.1-7(SI Units) and No.1-5(IP Units). Title: Duct System Sizes and Airflow Quick Chart Created Date: 8/21/2006 11:56:03 AM Next, find 25.7” for a flat oval with a smaller minor axis. Manufactured from light gauge slit coil galvanised mild steel (as standard), incorporating an air … Rectangular Duct Weight Chart Roots Trees Membean. Two choices are 16” x 38”, with an equivalent round of 25.8”, or 14” x 45”, with an equivalent round size of 26.1”. Air duct also termed as ductulator is a passage that is used to provide fresh air into rooms, buildings etc., Air ducts may be in circular, square and in rectangular shapes. The ECCODUCT™ system is a rectangular spiral seamed duct embedded in the structural concrete floors of high-rise buildings. Rigid, Semi Rigid & Flexible Duct Rigid, Semi Rigid & Flexible Duct Holyoake Air Management Solutions – 2011 SPIRO-SET Spiro-set is a light weight air duct, machine formed in a continuous spiral from aluminium strip coil stock, corrugated and seamed with a four ply lock seam, creating an airtight tube which can be easily cut to length and bent Psychrometric Chart + Duct Calculator is a precise and powerful tool designed for HVAC&R engineers. Maximum Size of Duct - or Pipe - through Steel Joists - K series joists and maximum size of ducts and pipes; Rectangular Air Ducts - Velocity Diagram - Velocity diagram for rectangular air ducts - metric units; Spiral Ducts - Dimensions - Standard dimensions of spiral ducts - Imperial units Related Topics . invented the spiral wound gasket in 1912. Model # Diameter Carton Qty. Table of Contents 4 Products to Meet Your Needs 6 Solutions for Every Challenge 8 SofouchtT ™ Duct Wrap 10 ToughGard® R Duct Liner 12 oughGarT d ® T Textile Duct Liner 14 oughGarT d ® Ultra*Round™ Spiral Duct Liner 15 oughGarT d ® Rigid Liner Board 16 ToughGard® BMC Liner Board ToughGard® Duct Board 18 for above case it will be9.3 X4.5 =41.8 Kg. Perforated. Standard Guages; Normal Diamter: 1.2 mm: 1.6 mm: 2.0 mm: 3.0 mm: 4.0 mm: 5.0 mm: Metric SUBURBAN SHEET METAL LTD Mailing Address P.O. The primary use of ECCODUCT™ is to exhaust air from bathroom fans, range hoods, and clothes dryers, but can also be used for fresh air intake and supply air. Download Also: HVAC Duct Friction Loss and Sizing Excel Sheets. Oval allows an for “equivalent round” of a spiral pipe diameter in specs where ceiling height is a factor. Oval Spiral Pipe Machine. 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