The Duct Sizing Calculator is a hand held sliding calculator used for sizing supply and return duct systems using the equal friction, or velocity reduction design method. Large process ductwork may fill with dust, depending on slope, to up to 30% of cross section, which can weigh 2 to 4 tons per linear foot. Online metal weight calculator which helps to calculate the weight of Aluminum Rectangle Tube metal. Then multiply F by the density of the insulation in pounds per cubic foot. 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 description: round, motorized type 18 gauge frame, 20 gauge blade material thickness ul applicable standard galvanized steel blade material 5 inch dia blade size 5 inch duct size tradeline[r] brand weight … Specifications Operating and proof pressure 15 and 22.5 psig immersed in 130ºF water Vacuum either formed as part of the lay-up -13 psig Temperature variation procedure or are mechanically Per RTCA/DO-160D, section 5- modified Temperature shock -40ºF followed by immersion into 60ºF water For example, if the Craft@Hrs column shows L2@.250, the Labor Cost column will show $10.01. Design CFM 4" CFM 6" CFM 8" CFM 10" CFM 12" 60 6x4 60 4x6 90 4x8 120 4x10 150 4x12 90 8x4 110 6x6 160 6x8 215 6x10 270 6x12 120 10x4 160 8x6 230 8x8 310 8x10 400 8x12 150 12x4 215 10x6 310 10x8 430 10x10 550 10x12 180 14x4 270 12x6 400 12x8 550 12x10 680 12x12 210 16x4 320 14x6 490 14x8 670 14x10 800 14x12 240 18x4 375 16x6 580 16x8 800 16x10 950 16x12 270 20x4 430 18x6 … Divide the manhours per unit into 8 to find the number of units one electrician can install in one 8- hour day: 8 divided by .250 equals 32 units per day. Material Nominal Inner Outer Steel Schedule 80 3/8 0.423 0.675 0.798 0.007 Schedule 80 1/2 0.546 0.840 1.189 0.012 Schedule 80 3/4 0.742 1.050 1.686 0.026 Schedule 80 11/ 1/ 1/ / narrowscope duct construction: table 1-5 e5: a.14 x Multiply the number of pounds per linear foot by the number of linear feet to determine the total number of pounds. For a basic project in zip code 47474 with 25 linear feet, the cost to Install Ductwork starts at $10.90 - $13.04 per linear foot. OF SQ. FPM to CFM Calculator: Usually, volume flow is measured in Cubic Feet per Minute, but at times we require to convert ft3/min to ft/min. 11 approximate weight spiral duct in pounds per linear foot based on galvanized steel''Square and Rectangle Weight Per Foot and Bundle Chart May 2nd, 2018 - Square and Rectangle Weight Per Foot and Bundle Chart 6226 West 74th Street Chicago IL 60638 1 800 376 6000 1 708 563 1950 FAX itctube com www independencetube com' This amounts to an average of $1,000-$5,000 for a typical home. 1) units of height and width of a duct. Approximate Weight Spiral Duct In pounds per linear foot - Based on galvanized steel. But, while calculating the SG of a substance only requires using the formula, finding the weight of FRP piping and contents is more difficult. per hour. Front of calculator includes scales for friction, velocity, round duct size, weight per linear foot of round duct, surface area in square feet per lineal foot of round duct, rectangular equivalents of round duct sizes, weight per linear foot of rectangular duct and surface area in square feet per linear foot of Rectangular duct. 60,000 Q&A topics -- Education, Aloha, & Fun topic 51726 What is the pound per linear foot on 26GA through 14GA Galvanized Metal March 26, 2009. Then, measure the length of the duct--in inches--and multiply by the circumference. Before you get in to the estimation you have to consider two things in the drawing sheet. An average single-family home needs anywhere from 30 to 90 linear feet of ducting, but the specific total length depends on your home’s unique layout. Academia.edu is a platform for academics to share research papers. The formula is: Wt/Ft = 10.69*(OD - Wall Thickness)*Wall Thickness Outer Diameter (i.e.10.75 or 8.625 inches) Round ductwork is subject to duct suction collapse, and requires stiffeners to minimize this, but is more efficient in material than rectangular duct work. Weight Calculator Metal gets heavy, and whether you want to see how much shipping is likely to be, or if your vehicle (or back) can handle it, it’s good to know what your order weighs. The company I work for has recently started using a new computer system for inventory, and I wanted to make sure I have the correct conversion factor for computing Pounds to Linear Foot for the following Galvanized metals: However, you can use this chart of typical FRP piping and contents to estimate the total per lineal foot. NOTE: Actual inside dimensions of duct after 1" Linacoustic Insulation is installed = 8" × 8", therefore care must be taken to size duct accordingly. The estimated total weights are provided for various values of specific gravity of contents. This is the number of square inches in the duct area. Water is flowing through the channel at an average velocity of 16 feet per second. Galvanized Round Duct Weight. Example. WEIGHT CHART DUCT SIZE SURFACE AREA WEIGHT – LBS PER LINEAR FOOT OF DUCT (1/2 OF GIRTH) NO. Divide by 144 to determine how many square feet are in the duct area. Aluminum Rectangle Tube Weight Calculation Material Alloy Steel Aluminum Beryllium Brass Bronze Cast Iron Columbium Copper Copper Alloys Gold Lead Magnesium Molybdenum Nickel Plastic Silver Stainless Steel Tantalum Titanium Tungsten Zinc Zirconium FT. 2. Foot per Minute: It is a speed conversion unit used commonly in both Imperial And U.S. System. Download Also: HVAC Duct Friction Loss and Sizing Excel Sheets. Insulation Weight Factors. To help with that, we’ve got our handy weight calculator here. Table gives weight of galvanized steel ducts in pounds per lineal foot. WEIGHTS OF CONSTRUCTION MATERIALS IN pcf MATERIAL Weight Gypsum, Loose 70 Hay, Moist 12 Ice 57.2 Masonry, Ashlar 140-165 Masonry, Brick 100-140 Paper 50 Slate 172 Stone, Quarried 82-107 Terra Cotta 72-120 Tin 459 Water, Fresh 62.4 MISCELLANEOUS Water, Sea 64 Douglas Fir 34 Hemlock Fir 28 S. Yellow Pine 37 foot for horizontal runs exceeding 75’ – UL has approved 1/16” per foot slope for round, listed systems • Rounded bottom – less area for grease to pool • Since cylindrical - very small buildup will result in tendency to flow; unlike rectangular systems – Hydraulic flow calculation methods prove that round duct To estimate costs for your project: 1. Set Project Zip Code Enter the Zip Code for the location where labor is hired and materials purchased. That’s .250 manhours multiplied by $40.04 per man-hour and rounded to the nearest penny. Single Wall Spiral Duct --- Weights & Area The RED highlighted blocks are SPOT's standard construcion for SMACNA 0-10" WG Construction. Pounds per Lineal Foot* Diameter Spiral Pipe of Texas Ft. Worth, TX ph: 817.877.3543 www.spotUSA.com rev. narrowscope duct construction: table 1-5 e4: a.13 2″ w.g. Medium-Pressure Duct (24 x 10) $82 per linear ft. Medium-Pressure Duct (48 x 14) $124 per linear ft. Perimeter Electric Baseboard Heat (Supply only) $25-$75 per linear ft. Electric Cabinet Heater (Supply only) $450 ea. 1 m/s equals 196.8503 ft/min. Measure the distance across the duct, in inches, then multiply by 3.14159 if the duct is circular to find its circumference, in inches. Expect to pay $35-$55 per linear foot (including labor and materials). Front of calculator includes scales for friction, velocity, round duct size, weight per linear foot of round duct, surface area in square feet per lineal foot of round duct, rectangular equivalents of round duct sizes, weight per linear foot of rectangular duct and surface area in square feet per linear foot of Rectangular duct. For example, if your pounds per linear feet is four and you have six linear feet, multiply six times four and get 24 pounds. pipe weight chart nominal pipe size outside diameter wall thickness inside diameter weight per foot sch no 16" 16.000 0.250 15.500 42.092 10 16" 16.000 0.375 15.250 62.637 std … 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. a weight per linear foot of 0.15 lb/ft. Mostly it would be in millimeters. Actual costs will depend on job size, conditions, and options. Table A3.2-1; Maximum Recommended Round Duct Weights for Sizing Seismic Restraints [Maximum Values of Tables A3.2.2 & A3.2.6] Duct Diameter (in) Duct Area (ft2) Duct Weight (lb/ft) 30 4.9 20 33 5.9 22 36 7.1 24 48 12.6 33 60 19.6 41 84 38.5 69 Pipe Weight Formula - This formula can be used to determine the weight per foot for any size of pipe with any wall thickness. Add 10% for insulated ductwork systems. Size Inches Pressure Class Thickness Outside Diameter* 18-Foot Laying Length; Weight Per Length + Avg. Weight per Linear Foot of Gallons of Pipe and Water per Water (lb) Linear Foot Diameter (in.) 2. CFM: It is a unit to measure the velocity of the flow of air and can be expressed as ft 3 /min. We can determine the volumetric flow rate as follows: The flow rate will vary according to the cross-sectional area of the channel: Area = π * (Diameter) 2 / 4. To determine the weight per foot of any piping insulation, use the pipe size and nominal insulation thickness to find the insulation weight factor F in the chart shown below. 38.0 in | 3 feet 2 inches: Duct Bank Height: 21.0 in | 1 feet 9 inches: Trench Depth: 57.0 in | 4 feet 9 inches: Volume of Excavation: ... Volume of Duct Bank: 554.2 ft 3 | … Square-Rectangular Weight Per Foot Other Sizes Available on Request - Theoretical Weights www.TUBULARSTEEL.com Square Rect. Table includes 25% allowance for bracing, hangers, reinforcing, joints, and seams. These excel sheets will enable you to calculate or estimate the duct weight or the duct surface area. Notes: 1. .049 .065 .083 .095 .109 .120 .134 3/16 1/4 5/16 3/8 1/2 5/8 15 PER LINEAR FT. 28 GA 26 GA 24 GA 22 GA 20 GA 18 GA 16 2.67 2.32 2.69 3.43 4.17 4.92 6.40 Let's say we have a circular channel that has an inner diameter of 8 inches. 08/17 Of typical FRP piping and contents to estimate the total per lineal foot www.TUBULARSTEEL.com. 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