Information Required for Duct Construction 1. The round aperture reduces air turbulence for quiet system operation. (SMC) TDC, Slip/Drive and Raw Sheet Metal Connectors, Inc. Round galvanized gauge selection shall be in accordance with Table 3-5 of the SMACNA Duct Construction Standards - Metal and Flexible, except that the following minimum gauges are required: 1. a ROLAMATE 'H' Class Flange with duct gauge of 24 should be used. The simple design, relatively low cost, and high level of performance flexibility make rectangular silencers a reliable and cost-effective choice. , square versus 45 ° entry taps, conical versus straight taps, etc. The fixed collar is available in sizes 6", 8", 10", 12", and 14". Galvanized Steel Duct Wye Branch (8101. Detail results such as. China HVAC Galvanized Steel Duct Fitting 15/ 30/ 45/ 90 Pressed Flat Duct Elbow 30-Gauge Duct Fitting at Menards® Wiremold 1511 90-Degree Overfloor Raceway Flat Elbow Steel 45° Flat Angle Elbow 26-Gauge Duct Fitting at Menards®. 030-inch wire. But recent code revisions and emerging attitudes toward energy effi ciency are making an impact on specifi cations. Dual duct systems are an ideal vehicle for alternative ventilation strategies and humidity control. Configuring a ductwork system The size of ductwork affects the amount of airflow and its velocity and is very important in how well the HVAC system operates. The fixed collar is available in sizes 6", 8", 10", 12", and 14". If you need ductwork for your air conditioning projects or heating project, The Duct Shop will ship your ducts quickly, directly to your home or HVAC job site. The 1980 edition of these standards was the first publication dealing with the selection of duct gauge and reinforcement for rectangular industrial duct systems. Gauge of duct question. It provides access to frequently needed information: • Fan Basics • System Design • Duct Design • Motors & Drives • Heating. Wire & Cable Your Way offers URD wire at the best prices you'll find anywhere - available by the foot with no cut charges. ROUND SPIRAL DUCT AND FITTINGS - E. In this technical article, discussion is based on the correct cable selection and application for power distribution and utilization. The types of fittings to be used based on the designer's calculations of fitting losses (i. Reinforcement spacings of 10 feet (3. Static pressure is exerted equally on all sides of a duct system. PVS 24 - 18 gauge A-653 4 x 1, 4 x 4 59" Slip and Drive Aluminum. 3 Reducing Trunk System. NW Minneapolis, MN 55448 Phone: 763-755-7677 Fax: 763-755-6184 Email: [email protected] Round Selection Chart. Pole Rd Everson, WA 98225. Announcement. Gauge Conversion Chart and other conversion tables for length, tensile and weight. Surface Raceway E5. Heavy Gauge Steel The resilient quality and commercial grade strength of this material ensures outstanding product performance. Residential Duct Sizing Guide The following duct sizes are based on a fraction drop of. Sheet Metal Gauge Size Chart Gauge (or gage) sizes are numbers that indicate the thickness of a piece of sheet metal, with a higher number referring to a thinner sheet. • disabling your adblocker on The Engineering ToolBox! •• How to? You can make ads in the Engineering ToolBox more useful to you!. Flanged duct can be manufactured in lighter gauges, or in heavy gauge (even up to 0. 7 in-wc/psi) = 0. RETURN DUCT SYSTEMS. Heat Conduction and Thermal Resistance For steady state conditions and one dimensional heat transfer, the heat q conducted through a plane wall is given by: q = kA(t1 - t2) L Btu hr (Eq. Pennsylvania average utility selection no longer causes Energy Gauge to freeze. Y Branch is the perfect solution for merging two branches of equal size together. HVAC DUCT GAUGE SELECTION immsk (Mechanical) (OP) 8 Aug 12 17:05. 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. It's Okay to Ask "Wye" - When to use which Y and why. Seam welds are used for flanged duct with a diameter of 25 inches (63. UNIVERSITY OF PENNSYLVANIA Design Standards Revision July 2019 DUCTWORK 233100 - 4 B. Sponsored Links. Dual duct systems are an ideal vehicle for alternative ventilation strategies and humidity control. Velocity 2000 - 3500 ft/min (10 - 18 m/s) Maximum Velocity. Customers who bought this product also bought. If you know the CFM of your air handler and the temperature rise needed, you can use the chart below to approximate the KiloWatt rating of the duct heater needed for your application. Abrasive Resistant (AR400 or AR235) Steel Ductwork. 3"& 5" Dial Vari-angle ® Bimetals Series 3VBM and 5VBM. duct in varying lengths, diameters, gauges, and materials right on the jobsite. 3m/second), metal nosing is recommended to be applied to every leading edge. 05551 THE OKONITE COMPANY THE OKONITE COMPANY Engineering Data for Copper and Aluminum Conductor Electrical Cables 102 Hilltop Road, Ramsey, NJ 07446 201. HVAC Premium has sold over 5,000,000 HVAC Components - We are proud of our many happy customers! Our Galvanized Sheet Metal Duct Pipes are manufactured from high quality galvanized steel. HVAC Calculations and Duct Sizing Gary D. Product Selection. Duct Entry Configuration (must choose one): Hoods: What do these hoods look like? None Plain Duct End Flanged Duct End Bellmouth Entry Sharp Edged Orifice Standard Grinder Hood (tapered t. That resistance results in decreases in the static pressure, or pressure drops. wc Magnehelic gauge works perfect for most testing, including residential and most light-commer-cial testing. Sinle Duct Variable Volume Control ssemblies - Direct Diital Controls SDVQ 5000 Series. I've read that 30 gauge is too thin to be used in residential ductwork. Our selection of humidifiers, dehumidifiers, purifiers, and air filters will make your home a more comfortable place to be. 5-Apr inch (33) 12-14 inch (51) 18-20 inch (10) Smaller than 3 inch (36) When making a selection below to narrow your results down, each selection made will. A 22-gauge needle in combination with a smaller (0. Ductwork and supports shall conform to the HVAC Duct Construction Standards, Metal, and Flexible, Second Edition, 1995. In this technical article, discussion is based on the correct cable selection and application for power distribution and utilization. Labeling Systems E2. Differential Pressure Dwyer's wide selection extends to Gages, Transmitters, Switches, Data Loggers, and Monitors for Differential Pressure. View List of Spec Sheets. Gauge allows selection of pressure, velocity, or volumetric flow operation. The types of fittings to be used based on the designer's calculations of fitting losses (i. The designation of a pressure class pertains to straight duct and duct fittings except for equipment. Engineering Cookbook A Handbook For The Mechanical Designer Third Edition This handy pocket reference is a token of LOREN COOK COMPANY's appreciation to the many fine mechanical designers in our industry. Mounting arrangement of the system 8. View Kitchen Vents. While sheet metal has been one of the most commonly-used materials for ductwork, advances have opened the door to several other types of material that are also used to create ductwork. ) from a user friendly window. 25 inches or 6. HVAC systems work a lot more efficiently when the ductwork you use is the right size for your home. Duct System Design Guide First Edition ©2003 McGill AirFlow Corporation McGill AirFlow Corporation One Mission Park Groveport, Ohio 43125 Duct System Design. 25 inches in length and has the lock form seam construction; 4"-24" sizes have laser welded seams. All ducting must be made as indicated in the installation drawings and. ) Standard Grinder Hood (no taper) Trap or Settling Chamber Abrasive blast chamber Abrasive blast elevator Abrasive separator. Nobody expects more from us than we do. So, we begin at the blower with a high pressure. Buying lots of preformed HVAC duct gets very expensive, but you can form your own with machines and tools for forming sheet metal into shapes for Heating, Ventilating, and Air Conditioning duct work. Other materials are available. Price $228. Hi guys, I need some help here. Power Connectors E1. A one KW heater will produce 3,413 BTU's per hour. ) - for use in manometers and all Dwyer gauges using red oil Violet Gauge Oil (1. A proprietary duct system that has its own inherent fire-resistance rating can be used, or a metallic duct, either field fabricated or UL certified factory-built designs. Install duct sizes that are too small, and your system will have to work harder to keep your home heated and cooled. 11419 Yellow Pine St. DUCT WORKS Selection Tips DETAILED TECHNICAL SPECIFICATION. Pennsylvania average utility selection no longer causes Energy Gauge to freeze. HOW TO SELECT THE PROPER TYPE OF FLEXIBLE DUCT CONNECTOR FOR YOUR INSTALLATION. While sheet metal has been one of the most commonly-used materials for ductwork, advances have opened the door to several other types of material that are also used to create ductwork. The electric heater frame will have flanged or slip-in duct connection. High Pressure Loss Ducts. 1-855-738-7683. 4 Metallic ducts. It provides access to frequently needed information: • Fan Basics • System Design • Duct Design • Motors & Drives • Heating. Velocity 2000 - 3500 ft/min (10 - 18 m/s) Maximum Velocity. 5-Apr inch (33) 12-14 inch (51) 18-20 inch (10) Smaller than 3 inch (36) When making a selection below to narrow your results down, each selection made will. HUSH DUCT™ silencers. Duct Heaters for Wet, Dusty and Corrosive Areas. 5) SELECT the appropriate HUSH DUCT™ silencer model/type to concurrently meet the noise reduction, pressure loss and self-generated noise requirements. You have 3 options to select the right fan or blower for your application: Use our Quick Selector to narrow your choices and sort by Price or Efficiency. Metal flex duct performs better than plastic flex duct. 1060 East Pole Road Everson, WA USA 98247 For support: Call 1(888) 330-1345 in USA +1 (360) 738-9835 outside USA [email protected] Sheet Metal Duct Friction Loss Calculator. There are three methods to size a duct. Each elbow is figured as equivalent to a certain number of feet of straight duct. The duct is available in galvanized or SS and in most gauges (depending upon diameter). View Kitchen Vents. 2 sq ft x 144 sq in/sq ft = 28. , square versus 45 ° entry taps, conical versus straight taps, etc. 11-25-2013, 03:21 PM #4. Information Required for Duct Construction 1. Other materials are available. 22 gauge for duct size up to 1200 mm (48") thickness 0. I've read that 30 gauge is too thin to be used in residential ductwork. It's recommended to use a. By the time the. To minimize field assembly costs, rectangular duct is supplied in lengths up to ten feet. break is the way to go, or a really large shop, that has a lot of. Maximum tolerable noise level 5. Duct, ducting systems,How to size duct, Duct desigining, Duct sizing calculations registers, grills etc. Each section of duct, each fitting, each turn of the air adds resistance to that air flow because of friction and turbulence. The outer layer is typically heavy gauge sheet metal (18ga or stiffer) to minimize duct break-out and break-in noise. Oval Selection Chart. The duct heater frame, control enclosure and element support brackets shall be of 20 gauge (minimum) galvanized steel. The Velocity Reduction Method can be used when sizing air ducts. Download PDF of Catalog. 030-inch wire. 25 inches water column is equal to (0. I am having new galvanized steel ductwork installed in my attic, replacing the old flex duct that was there. Pittsburgh Seam Hammers We carry several makes and models of air and electric Pittsburgh seam locking hammers for finishing the Pittsburgh seam on sheet metal duct work. I am designing a 72" X 43" supply duct with a 3" in. The Different Types of Ductwork Material. 93 4 ˛ 138 81 35 0 0 0 0 0 Fantech HP190 60-85 2. If you know the CFM of your air handler and the temperature rise needed, you can use the chart below to approximate the KiloWatt rating of the duct heater needed for your application. Static pressure Static pressure is the measure of the potential energy of a unit of air in the particular cross section of a duct. It is referred to as a Tubular Centrifugal. Deflection Gauges (mandrels) are used to test flexible sewer pipe for out-of-roundness or deflection per ASTM specifications D3034 and F679. 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. As with our Tees, Y Branches are built to industrial standards of 20 gauge galvanized steel. single-wall, rectangular duct fittings are factory fabricated to furnish you with a high-quality line of products in a broad range of standard sizes. Reinforcement spacings of 10 feet (3. Fittings are assembled with stitch welds, spot welds, or standing seams and are sealed. Heating, Air Conditioning, Ventilation and Air Distribution Products Web Line Direct Help Line 1. I am having new galvanized steel ductwork installed in my attic, replacing the old flex duct that was there. Spiral Manufacturing Co. CONTACT US FOR CONTRACTOR DISCOUNTS AND JOB QUOTES 888-257-3719. 1-855-738-7683. Honeywell's C7232 Sensor and Controller is a stand-alone Carbon Dioxide (CO2) Sensor used in determining ventilation necessity with HVAC controllers. COURSE CONTENT 1. The characteristics that make it so attractive include ease-of-handling and installation, more than 40+ commercial and residential construction applications, and a large selection of product configurations to. A comprehensive duct layout indicating sizes, design airflows, pressure class, and routing of the duct system. 021-inch) guidewire can be used in cases with a small pancreatic duct, but small guidewires are difficult to manipulate even after successful pancreatic duct puncture, and we use a 19-gauge needle even in cases with a nondilated pancreatic duct. To weld mild steel, choose an American Welding Society classification wire such as ER70S-6, which has a weld puddle that wets out nicely. Order ZORO SELECT Duct Strapping, Galvanized Steel, 26 GA, 1" W x, DS-261 at Zoro. GAUGE SELECTOR (Rotary Action) - selects temperatures for display on the DUCT TEMP gauge: - CABIN DUCT (supply) temperature - CABIN temperature. A gauge chart to determine sheet metal thickness. Sorry to see that you are blocking ads on The Engineering ToolBox! If you find this website valuable and appreciate it is open and free for everybody - please contribute by. For tougher applications, we suggest the Nordfab 16 gauge duct pipe. Add total elbow equivalents to the. 1) Where: L = the thickness of the wall in inches. Re: 26 gauge or 30 gauge Plus unless it's sound lined you get popping / flexing from thinner duct work. The new line of Marley Duct Heaters is available in slip-in or flanged configurations with heavy-gauge. Grounding Connectors E4. Fan Selection Another key to reducing power consumption is fan selection. Titus dual duct terminals provide high performance and value, making them the preferred selection for these applications. wg static pressure and 29400 CFM. Retrotec EU Hardermaat 12 7244PZ Barchem Netherlands +31 (0) 522 282941. The 0–1-in. Easy online ordering for the ones who get it done along with 24/7 customer service, free technical support & more. Flex duct =. Installation time is minimized with. Quality duct is essential to maximize the efficiency of central air conditioning units. Titus dual duct terminals provide high performance and value, making them the preferred selection for these applications. Stock number 7A563 will also meet the air movement requirements with 2832 CFM at 0. These publications provide valuable information that can help in the proper selection of a duct system design and airflow components to. (Please lrefer to the FABRIC SELECTION CHART on next page). Heating, Air Conditioning, Ventilation and Air Distribution Products Web Line Direct Help Line 1. QF 18ga duct pipes feature a laser welded seam and rolled ends for use with Quick-Fit clamps. ) - for use in manometers and all Dwyer gauges using red oil Violet Gauge Oil (1. 10 inches per 100 feet of lineal duct. The factory installed preset also makes it easy to feed conduit, partition feeds. with all the available fittings and reducing products i really don't see the benefit of making basic sized trunk lines, now as far as plenums and such, having a small shear/pittsburgh machine,4 ft. The types of fittings to be used based on the designer's calculations of fitting losses (i. Fan Selection The following information is generally required for the selection of a suitable fan: 1. Residential Duct Sizing Guide Key Points to Remember when using this guide • The sizing chart is designed for estimating the airflow in an "average" system. Master Flow. Nature of load and available drive 6. Online Ductulator Free Duct Size Calculator. Same goes in the industrial boiler realm. NW Minneapolis, MN 55448 Phone: 763-755-7677 Fax: 763-755-6184 Email: [email protected] Powered by ACCA Manual D (Ductwork Design) Rhvac can help you in several ways on sizing ductwork. a ROLAMATE 'H' Class Flange with duct gauge of 24 should be used. 1-855-738-7683. Pre-Printed & Write-On Markers F. #2 Corrugated 14" - 36" 1800lbs. The duct is available in galvanized or SS and in most gauges (depending upon diameter). The 0–1-in. No flimsy 26 or 24 gauge vent noise silencer material that vibrates in the airstream. Single wall grease duct is ETL Listed to UL Standard 1978 - Grease Ducts and CAN/ULC-S662. Static pressure 101 Static pressure is the amount of pressure a fan has to push and pull against to move air through a duct system. Heat Recovery 23- 7 BASIC MECHANICAL MATERIALS AND METHODS A. I had to use duct seal everywhere. Stability and Gauge taps are normally supplied with the pneumatic controls to. 1 Fan Selection Example. Where 1'' of water gauge = 250 pascals. HVAC Systems for Critical Care Areas C. Rectangular silencers are designed to reduce noise in rectangular ductwork while minimizing system pressure drop. 80665 mbar, based on this definition for millimetres of water column. Fundamentals of HVAC Controls The application of Heating, Ventilating, and Air-Conditioning (HVAC) controls starts with an down to the ductwork and into the conditioned space. In addition to the basic engineering guidelines for the sizing of HVAC ductwork systems, the. 8 sq inches (cross sectional area of duct). Pennsylvania average utility selection no longer causes Energy Gauge to freeze. Abrasive Resistant (AR400 or AR235) Steel Ductwork. The comprehensive heater. So, we begin at the blower with a high pressure. To weld mild steel, choose an American Welding Society classification wire such as ER70S-6, which has a weld puddle that wets out nicely. US Duct assists reps, contractors and companies in the proper design and conveyance of material-laden air. Ruskin® Quick Product Selection Tables: Life Safety. It is referred to as a Tubular Centrifugal. It is a lot more than just a Ductulator. Ductwork is used to carry the dirt and air from the collection point to the collector. Dual duct systems are an ideal vehicle for alternative ventilation strategies and humidity control. 0300 Fax: 201. Labeling Systems E2. It is widely used to determine the airspeed of an aircraft, water speed of a. These publications provide valuable information that can help in the proper selection of a duct system design and airflow components to. In part 1 of this duct design series, I discussed the basic physics of moving air in ducts. On the other hand, for the hot air ducts, one admits 50% to 75% of the cold air flow according to thermal loads. NW Minneapolis, MN 55448 Phone: 763-755-7677 Fax: 763-755-6184 Email: [email protected] Silent-Mod HVAC are fabricated from 22-18 gauge galvanized steel for superior strength and maximum sound transmission reduction through side walls. We offer a selection of: Electric Duct Heaters. airflow and noise reduction. System Overview D3. The return air mixes. By the time the. Page 2 of 83 ©Retrotec Inc. Our engineers prepare technical engineering bulletins and reports addressing airflow, noise control, and other related topics. A bath vent fan duct that is too short may violate the manufacturer's installation instructions, may not work properly, or may be drafty; a bath vent fan duct that is too long may restrict air flow such that the fan is not functional. A one KW heater will produce 3,413 BTU's per hour. I have the SMACNA HVAC duct construction standards book open in front of me. The Detectable Duct Rodders use 20 to 25 gauge copper wire. Now we're going to take that and use it to figure out how to make all the parts work together properly. It provides access to frequently needed information: • Fan Basics • System Design • Duct Design • Motors & Drives • Heating. Looking for GREENSEAM Galvanized Steel Snap Lock Pipe, 14" Duct Fitting Diameter, 60" Duct Fitting Length (6EKG0)? Grainger's got your back. I have the SMACNA HVAC duct construction standards book open in front of me. The C7232 measures the CO2 concentration in the ventilated space or duct. Lockformer Parts. SMACNA standard is followed for duct construction. , Stainless, x_____" wide to_____" wide fabric, clenched by means of a roll formed double lock seam. airflow and noise reduction. 25 inches water column is equal to (0. Heat Conduction and Thermal Resistance For steady state conditions and one dimensional heat transfer, the heat q conducted through a plane wall is given by: q = kA(t1 - t2) L Btu hr (Eq. Depending on the geometrical shape and size will dictate the minimum gauge size. Install duct sizes that are too small, and your system will have to work harder to keep your home heated and cooled. 5-Apr inch (33) 12-14 inch (51) 18-20 inch (10) Smaller than 3 inch (36) When making a selection below to narrow your results down, each selection made will. Residential Duct Sizing Guide Key Points to Remember when using this guide • The sizing chart is designed for estimating the airflow in an "average" system. Cable Ties A. As the trunks are reduced use the total CFM of the remaining downstream branches. 14 [rad x rad x pi] = 28. Production Products Inc provides new and used HVAC / sheet metal machinery, plasma cutting machines & tables, roll forming equipment, duct assembly tools, duct reinforcement hardware and HVAC sheet metal machinery hardware, parts & supplies. For modulating control, the engineer must choose sizes that create enough velocity 13-gauge toggled frame with hat channel sides and a flat top. Static pressure 101 Static pressure is the amount of pressure a fan has to push and pull against to move air through a duct system. Product Selection. Plus, we can custom fabricate rectangular ductwork for commercial and industrial applications according to your specifications in 3003-H14 aluminum, paint-grip. Malco's popular sheet metal tool quickly attaches to the chuck of a minimum 12-volt cordless or an A/C electric drill. Flexible Duct Connectors shall be pre-assembled 24 gauge, 28 gauge; Galv. Fan Selection The following information is generally required for the selection of a suitable fan: 1. Type of application or service 4. I've read that 30 gauge is too thin to be used in residential ductwork. Lockformer Parts. The comprehensive heater. Same goes in the industrial boiler realm. View Bath Venting. To be a useful field tool, the pressure gauges like this one need to be able to measure the relatively low pressure readings associated with velocity pressures (frequently, much less than 0. 07" on most metal duct calculators Step One - Identify the volume of air that will be passing through the duct Step Two - Select the duct size from the table that can carry that volume of. Dual duct systems are an ideal vehicle for alternative ventilation strategies and humidity control. Y Branch, WYE Branch, Fully Welded, Airtight. This difference is the static pressure measured in inches of water gauge. main power connection is provided with all electronic controls and electrical components located on the same side of the casing, for quick access, adjustment, and troubleshooting. 9707 Williams Road Thonotosassa, FL 33592 Fax (813) 413-8377 Tel (813) 413-8230 Toll free (877) CDS–DUCT 237-3828 Spiral Duct Specifications. System Overview D3. 3 Fan System Effect. 11-25-2013, 03:21 PM #4. Metal Fab meets the requirements of most commercial and industrial applications, allowing for absorption of normal equipment-created vibration and preventing it from being transmitted through the duct system. Find the sizes of main and branch ducts from the air flow rates and the velocities by using. The velocity reduction method can be used for sizing air ducts. 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. The Velocity Reduction Method can be used when sizing air ducts. Rectangular Duct. Our Y Branch, WYE Branch fittings are fabricated out of 20 gauge galvanized metal, with all seams welded solid to. It is widely used to determine the airspeed of an aircraft, water speed of a. EASTERN TIGHT ROUND SPIRAL DUCT AND FITTINGS CONSTRUCTION STANDARDS Gauge selection for galvanized steel (ASTM A653) or paint grip. $0 - $10 Your Selection: Master Flow 4 in. com sells snap lock pipe and snap lock duct accessories at some of the lowest prices you'll find online. Ductulator calculats duct dimensions using equal friction method or velocity method. Metal flex duct performs better than plastic flex duct. Another style of manometer is a digital manome-ter. ; remember 0. Enter Friction Loss Per 100' of duct (inches of water), Duct Airflow (CFM), Duct Length and the number of bends. By the time the. Color_backlight Status Price; 0017-0001: white 75. Order ZORO SELECT Duct Strapping, Galvanized Steel, 26 GA, 1" W x, DS-261 at Zoro. Menu keys to access 5 menus which provide access to security. 1060 East Pole Road Everson, WA USA 98247 For support: Call 1(888) 330-1345 in USA +1 (360) 738-9835 outside USA [email protected] Additionally, total filtration of all air delivered to the zone is possible. Reinforcement spacings of 10 feet (3. duct board can provide an alternative to wrapped or liner insulation. Find a great selection of blower doors, duct blasters, digital pressure gauges, and more. CaptiveAire's single wall & double wall grease duct are factory-welded for ease of installation and superior performance to traditional site-welded ductwork. The Different Types of Ductwork Material. Cutting Into Existing Duct Work Question. Static Pressure is the resistance to airflow (friction) caused by the air moving through a pipe, duct, hose, material. All galvanized spiral duct 6” and larger is corrugated unless ordered without corrugation. In this instance, the 800 cfm divided by 4,000 ft/min calls for a duct area of 0. UNIVERSITY OF PENNSYLVANIA Design Standards Revision July 2019 DUCTWORK 233100 - 4 B. PVS 24 - 18 gauge A-653 4 x 1, 4 x 4 59” Slip and Drive Aluminum. Duct Heaters for Wet, Dusty and Corrosive Areas. The factory installed preset also makes it easy to feed conduit, partition feeds. I would like to determine the appropriate sheet metal gauge to use for this. 1 friction rate. • The chart assumes the blower motor and total effective length of the duct system to be adequate for a. 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. Terminals D2. ROUND SPIRAL DUCT AND FITTINGS - E. Round Ductwork Pipe (171) Spiral Ductwork Pipe (13) When making a selection below to narrow your results down, each selection made will reload the page to display the desired results. the math is 200sq in X. To help, this blog will explain the gauge system and features a sheet metal gauge chart. As with our Tees, Y Branches are built to industrial standards of 20 gauge galvanized steel. In addition to the basic engineering guidelines for the sizing of HVAC ductwork systems, the. We have the largest selection of Grilles Registers & Diffusers. Lockout/ Tagout & Safety Solutions B1. Find the sizes of main and branch ducts from the air flow rates and the velocities by using. , equal friction, velocity, by duct dimensions + find airflow). Buy Snap Lock Pipe And Accessories - Now you can buy Snap Lock Pipe from a name you can trust in the HVAC industry! HVACDirect. Menu keys to access 5 menus which provide access to security. basic data (duct dimensions, airflow, power, voltage, number of stages, control signals, etc. 80665 mbar, based on this definition for millimetres of water column. 46mm) galvanised perforated steel. Nobody expects more from us than we do. Dual duct systems are an ideal vehicle for alternative ventilation strategies and humidity control. For the same size range but with static pressure at 4" w. Gauge OVH EGT. 28 gauge being the lightest not 30. 22 gauge for duct size up to 1200 mm (48") thickness 0. We have the largest selection of Grilles Registers & Diffusers. Velocity 1500 - 2000 ft/min (8 - 10 m/s) Maximum Velocity. 20, 2016) - A new duct sizing calculator from ASHRAE and the Air Distribution Institute (ADI) allows HVAC air distribution system designers to more accurately size ducts, especially flex ducts under varying amounts of compression, based on research results. Mounting arrangement of the system 8. Another style of manometer is a digital manome-ter. Double wall grease duct is ETL Listed to UL Standard 1978 and UL Standard 2221- Grease Duct Enclosure Assemblies. talk about return duct, you need 200 square inches per ton in order to keep the noise down across you return grill. UNIVERSITY OF PENNSYLVANIA Design Standards Revision July 2019 DUCTWORK 233100 - 4 B. Standard gauge galv. The probe was passed into the nasal cavity beneath the inferior turbinate. Our flush service fittings also provide the benefits of bend radius features at the workstation. Silent-Mod HVAC are fabricated from 22-18 gauge galvanized steel for superior strength and maximum sound transmission reduction through side walls. Heavy Gauge Carbon Steel Ductwork. single-wall, rectangular duct fittings are factory fabricated to furnish you with a high-quality line of products in a broad range of standard sizes. HVAC Premium has sold over 5,000,000 HVAC Components - We are proud of our many happy customers! Our Galvanized Sheet Metal Duct Pipes are manufactured from high quality galvanized steel. Our standard industrial ductwork can be made from carbon steel sheet and plate from 16 gauge to ½" thick and beyond. They are designed for indoor and outdoor use, providing protection against windblown dust and rain. The Detectable Duct Rodders use 20 to 25 gauge copper wire. duct board can provide an alternative to wrapped or liner insulation. These publications provide valuable information that can help in the proper selection of a duct system design and airflow components to. a ROLAMATE 'H' Class Flange with duct gauge of 24 should be used. Reinforcement spacings of 10 feet (3. Production Products Inc provides new and used HVAC / sheet metal machinery, plasma cutting machines & tables, roll forming equipment, duct assembly tools, duct reinforcement hardware and HVAC sheet metal machinery hardware, parts & supplies. All products are guaranteed new and of the highest quality, so browse our selection Pittsburgh seam hammers to find the device that is right for you. Im not really intending this question to be about different materials types and static/safety/etc since I've pretty much decided to use metal duct instead of PVC. Find a great selection of blower doors, duct blasters, digital pressure gauges, and more. 20, 2016) - A new duct sizing calculator from ASHRAE and the Air Distribution Institute (ADI) allows HVAC air distribution system designers to more accurately size ducts, especially flex ducts under varying amounts of compression, based on research results. You have 3 options to select the right fan or blower for your application: Use our Quick Selector to narrow your choices and sort by Price or Efficiency. 4 1 /2" Industrial Pressure Gauge Series PG-1. for all ducts between the supply fan and variable volume control boxes and 1” (250 Pa) w. The C7232 measures the CO2 concentration in the ventilated space or duct. Generally, the best exhaust system involves the Digihelic Gauge. Ductwork connected to fume hoods may be arranged in a variety of patterns depending on requirements. This testing ensures that flexible pipe has been properly bedded and backfilled (ASTM D2321) to give optimal performance. The prudent selection and application of sealing methods by fabricators and installers, giving due consideration to the designated pressure class, pressure mode (positive or negative), chemical compatibility of the closure system, potential movement of mating parts, workmanship, amount and type of handling. In part 1 of this duct design series, I discussed the basic physics of moving air in ducts. 3m/second), metal nosing is recommended to be applied to every leading edge. Low-velocity ductwork design is very important for energy efficiency in air distribution systems. Mounting arrangement of the system 8. Duct board is more rigid than duct liner or duct wrap and can be easily cut, taped together and made into a rectangular duct section. This "Equal-Friction" method of duct sizing should be adequate for normal residential furnace heating and air conditioning applications. Duct Entry Configuration (must choose one): Hoods: What do these hoods look like? None Plain Duct End Flanged Duct End Bellmouth Entry Sharp Edged Orifice Standard Grinder Hood (tapered t. Capable of 18 gauge capacity in galvanized sheet metal. Gauge of duct question. Sheet metal gauges used in ductwork. Rectangular Duct. HVAC Calculations and Duct Sizing Gary D. Cutting Into Existing Duct Work Question. Pennsylvania average utility selection no longer causes Energy Gauge to freeze. The tables in this manual provide options for the most economical selection of material gage and reinforcing member. With metal duct, use wide-sweep elbows or bends to reduce the resistance to airflow. " gauge sizes are 20 ga. Gauge: 24 Dimensions: 3" metal 3" fabric 3" metal. Sorry to see that you are blocking ads on The Engineering ToolBox! If you find this website valuable and appreciate it is open and free for everybody - please contribute by. In this technical article, discussion is based on the correct cable selection and application for power distribution and utilization. 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. General Venting. 11-25-2013, 03:21 PM #4. #N#Deflection Gauges, Pipe Sizes: 4" to 27", 938-96 Series. Each section of duct, each fitting, each turn of the air adds resistance to that air flow because of friction and turbulence. Spiral Lockseam Tubing. Galvanized Steel Duct Wye Branch (8101. Stainless Steel Ties C2. • The chart assumes the blower motor and total effective length of the duct system to be adequate for a. Gauge OVH EGT. Stock number 7A563 will also meet the air movement requirements with 2832 CFM at 0. For the optimal solution for the widest range of applications, there is a choice of measuring systems in Bourdon tube, diaphragm element and capsule element technologies. 00 € * 0017-0002: red 75. 05551 THE OKONITE COMPANY THE OKONITE COMPANY Engineering Data for Copper and Aluminum Conductor Electrical Cables 102 Hilltop Road, Ramsey, NJ 07446 201. A 22-gauge needle in combination with a smaller (0. 20, 2016) - A new duct sizing calculator from ASHRAE and the Air Distribution Institute (ADI) allows HVAC air distribution system designers to more accurately size ducts, especially flex ducts under varying amounts of compression, based on research results. It's recommended to use a. Master Flow. Rectangular silencers are designed to reduce noise in rectangular ductwork while minimizing system pressure drop. , square versus 45° entry taps, conical versus straight taps, etc. Whenever possible, avoid designing a bend or elbow within two feet of the fan to minimize static pressure and fan noise. The 0–1-in. It helped some. Static pressure Static pressure is the measure of the potential energy of a unit of air in the particular cross section of a duct. Residential Duct Sizing Guide The following duct sizes are based on a fraction drop of. View List of Spec Sheets. This difference is the static pressure measured in inches of water gauge. Our CAPS configuration tool helps you save time with its industry leading selection speed and information packed submittals. Heat Recovery 23- 7 BASIC MECHANICAL MATERIALS AND METHODS A. Ambient and airstream temperature 7. Flex Ducts are light-weight, fully insulated, easy to install, and high quality. Sheet Metal Gauge Size Chart Gauge (or gage) sizes are numbers that indicate the thickness of a piece of sheet metal, with a higher number referring to a thinner sheet. A proprietary duct system that has its own inherent fire-resistance rating can be used, or a metallic duct, either field fabricated or UL certified factory-built designs. Find the sizes of main and branch ducts from the air flow rates and the velocities by using. All galvanized spiral duct 6" and larger is corrugated unless ordered without corrugation. UNIVERSITY OF PENNSYLVANIA Design Standards Revision July 2019 DUCTWORK 233100 - 4 B. Bathroom exhaust fan duct length specifications: here we provide specifications for recommended minimum & maximum duct lengths for bathroom vent fans. Standard gauges in boxed area, weights may vary slightly. For the same size range but with static pressure at 4" w. Dual-Duct VAV Systems (average or high pressure) The circuit of the cold air ducts is calculated for 100% of the necessary flow. 7A559 would be a better selection. Grounding Connectors E4. The new line of Marley Duct Heaters is available in slip-in or flanged configurations with heavy-gauge. Sizes of Flat-Oval Spiral Duct. A proprietary duct system that has its own inherent fire-resistance rating can be used, or a metallic duct, either field fabricated or UL certified factory-built designs. is associated with 2,000 fpm, a relatively high velocity, especially in a smaller duct) along with the higher static. 25 divided by 27. a ROLAMATE 'H' Class Flange with duct gauge of 24 should be used. Mounting arrangement of the system 8. All galvanized spiral duct 6" and larger is corrugated unless ordered without corrugation. Speedi-Products. , Stainless, x_____" wide to_____" wide fabric, clenched by means of a roll formed double lock seam. See All Products. Steam Humidifiers. Nobody expects more from us than we do. Someone unfamiliar with the gauge system may not understand what is meant by 18 gauge steel, for example. Search our product line by function. Sizes (30 gauge) 3" x 10″ x 48″. The pitot tube was invented by the French engineer Henri Pitot in the early 18th century and was modified to its modern form in the mid-19th century by French scientist Henry Darcy. I am having new galvanized steel ductwork installed in my attic, replacing the old flex duct that was there. Nobody expects more from us than we do. 1) Where: L = the thickness of the wall in inches. There are three methods to size a duct. COURSE CONTENT 1. 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. Dual duct systems are an ideal vehicle for alternative ventilation strategies and humidity control. 0 Fantech HP2133 14-20. HVAC System Redundancy B. Sheet Metal Gauge Size Chart Gauge (or gage) sizes are numbers that indicate the thickness of a piece of sheet metal, with a higher number referring to a thinner sheet. ) hanger wire or 1" wide, 22 gauge hanger strap. 3 Fan System Effect. All galvanized spiral duct 6” and larger is corrugated unless ordered without corrugation. HUSH DUCT™ silencers. Ductulator calculats duct dimensions using equal friction method or velocity method. Metal Fab meets the requirements of most commercial and industrial applications, allowing for absorption of normal equipment-created vibration and preventing it from being transmitted through the duct system. NEMA enclosures for duct heaters and remote panels are available in a corrosion-resistant stainless steel or powder construction. it's not cost effective to make standard size duct work. Color_backlight Status Price; 0017-0001: white 75. A bath vent fan duct that is too short may violate the manufacturer's installation instructions, may not work properly, or may be drafty; a bath vent fan duct that is too long may restrict air flow such that the fan is not functional. Steam Humidifiers. A comprehensive duct layout indicating sizes, design airflows, pressure class, and routing of the duct system. you air conditioning and heat pump system has to breath. Atleast I do in my house. A fan with a 4" duct connection will perform much better with an adapter and 6" duct. Field fabricated is typically made from 16 gauge carbon steel, all welded, per local codes, which is then externally treated with fireproofing. Each section of duct, each fitting, each turn of the air adds resistance to that air flow because of friction and turbulence. Terminals D2. Our CAPS configuration tool helps you save time with its industry leading selection speed and information packed submittals. Selection: Gauge OHV DUCT PRESSURE. Someone unfamiliar with the gauge system may not understand what is meant by 18 gauge steel, for example. Y Branch, WYE Branch, Fully Welded, Airtight. ANSI American National Standards Institute. 26 24 22 20 18 Diam. In this instance, the 800 cfm divided by 4,000 ft/min calls for a duct area of 0. Beaded duct is manufactured using galvanized steel, this product is designed for indoor air distribution, Bead design reinforces duct Full automated assembly ensures consistent high-quality construction. Standard gauge galv. Hand Inspected. Maximum length - 3. Rectangular Duct. Low-velocity design will lead to larger duct sizes, but it may be worth since, doubling of duct diameter. Features of Quiet-Duct® Silencers. They are designed for indoor and outdoor use, providing protection against windblown dust and rain. Easy online ordering for the ones who get it done along with 24/7 customer service, free technical support & more. If loudness is not a factor, the 7A559 would be a better selection because it is less expensive. Sheet metal gauges used in ductwork. All ducting must be made as indicated in the installation drawings and. Pre-Printed & Write-On Markers F. 20, 2016) - A new duct sizing calculator from ASHRAE and the Air Distribution Institute (ADI) allows HVAC air distribution system designers to more accurately size ducts, especially flex ducts under varying amounts of compression, based on research results. , equal friction, velocity, by duct dimensions + find airflow). 07" on most metal duct calculators Step One - Identify the volume of air that will be passing through the duct Step Two - Select the duct size from the table that can carry that volume of. the math is 200sq in X. Spiral Manufacturing Co. Fundamentals of HVAC Controls The application of Heating, Ventilating, and Air-Conditioning (HVAC) controls starts with an down to the ductwork and into the conditioned space. Pittsburgh Seam Hammers We carry several makes and models of air and electric Pittsburgh seam locking hammers for finishing the Pittsburgh seam on sheet metal duct work. The 0–1-in. 5-Apr inch (33) 12-14 inch (51) 18-20 inch (10) Smaller than 3 inch (36) When making a selection below to narrow your results down, each selection made will. Related Commercial Resources ASHRAE Handbook -- Fundamentals Chapter: Duct Design (Clicking on a company's name will take you to their web site. 05551 THE OKONITE COMPANY THE OKONITE COMPANY Engineering Data for Copper and Aluminum Conductor Electrical Cables 102 Hilltop Road, Ramsey, NJ 07446 201. Additionally, total filtration of all air delivered to the zone is possible. Indeeco offers a wide selection of custom built electric duct heater designs for outdoor, wet, dusty, and corrosive areas. 9707 Williams Road Thonotosassa, FL 33592 Fax (813) 413-8377 Tel (813) 413-8230 Toll free (877) CDS-DUCT 237-3828 Spiral Duct Specifications. This pressure is similar to that found by blowing up a balloon. Also available with Aluminium or Stainless Steel. What is the correct gauge sheet metal that should be used? The contractor says he will use 26 gauge for supply and return trunks, and 30 gauge for branch runs? Is this the standard gauges for these?. Midwest Metal Fabricators' standard rectangular products are fabricated to meet SMACNA's 2005 Rev. The information. HVAC Systems for Administration Areas and Non-OSHPD Buildings D. Wire & Cable Your Way offers URD wire at the best prices you'll find anywhere - available by the foot with no cut charges. Maximum length - 3. Cable Ties A. Sheet Metal Gauge Size Chart Gauge (or gage) sizes are numbers that indicate the thickness of a piece of sheet metal, with a higher number referring to a thinner sheet. Y Branch, WYE Branch, Fully Welded, Airtight. US Duct assists reps, contractors and companies in the proper design and conveyance of material-laden air. UNIVERSITY OF PENNSYLVANIA Design Standards Revision July 2019 DUCTWORK 233100 - 4 B. Page 2 of 83 ©Retrotec Inc. In addition to the basic engineering guidelines for the sizing of HVAC ductwork systems, the. These duct construction standards are intended for use by contractors, fabricators and designers of air pollution control, pneumatic conveyance and industrial ventilation systems. Use this pressure unit converter to convert other pressure values in mmWC. for all other ducts of any application. Ductulator calculats duct dimensions using equal friction method or velocity method. View List of Instruction Sheets. The Velocity Reduction Method can be used when sizing air ducts. Maximum 2" w. A lacrimal cannula attached to a 3-cc syringe filled with fluorescein solution was used to cannulate the nasolacrimal duct. Gauge: 24 Dimensions: 3" metal 3" fabric 3" metal. SD-5 TH-500 SINGLE DUCT AIR TERMINAL UNIT FEATURES AND BENEFITS 1 Damper rotates in a self-lubricating, long life, low friction thermoplastic bearing. SMC manufactures coil line. See STEP 2 on page 4. Washington, DC 20009. The Detectable Duct Rodders use 20 to 25 gauge copper wire. , square versus 45° entry taps, conical versus straight taps, etc. This choice in duct mufflers is to accommodate shape, pressure drop vs. rectangular duct and fittings are one part of our complete line of HVAC products. A comprehensive duct layout indicating sizes, design airflows, pressure class, and routing of the duct system. Control Selection Guides 3) Double wall construction (not shown) 4) Mounting brackets (not shown) to accept all-thread hanging rods or wire hangers Standard & Optional Features Standard Features Construction AHRI 880 certified and labeled 22 gauge galvanized steel casing and valve 1/2" thick fiberglass insulation, mechanically fastened for. Titus dual duct terminals provide high performance and value, making them the preferred selection for these applications. Fan Selection The following information is generally required for the selection of a suitable fan: 1. Install duct sizes that are too small, and your system will have to work harder to keep your home heated and cooled. Quality duct is essential to maximize the efficiency of central air conditioning units. Buying lots of preformed HVAC duct gets very expensive, but you can form your own with machines and tools for forming sheet metal into shapes for Heating, Ventilating, and Air Conditioning duct work. It helped some. SMACNA standard is followed for duct construction. Someone unfamiliar with the gauge system may not understand what is meant by 18 gauge steel, for example. For modulating control, the engineer must choose sizes that create enough velocity 13-gauge toggled frame with hat channel sides and a flat top. , square versus 45 ° entry taps, conical versus straight taps, etc. These enclosures are hinged with fully insulated covers that include pressure latches on all sides. 2 Balancing Air. I had to use duct seal everywhere. Maximum Velocity. HVAC Premium has sold over 5,000,000 HVAC Components - We are proud of our many happy customers! Our Galvanized Sheet Metal Duct Pipes are manufactured from high quality galvanized steel. airflow and noise reduction. QF 18ga duct pipes feature a laser welded seam and rolled ends for use with Quick-Fit clamps. Double wall grease duct is ETL Listed to UL Standard 1978 and UL Standard 2221- Grease Duct Enclosure Assemblies. 2005 SMACNA STANDARD SPIRORIB POSITIVE PRESSURE INNER SHELL INNER SHELL MAJORSPIRAL SPIRAL SPIRAL AXISDUCT DUCTFITTINGSFITTINGS DUCT 10”-24”24 262022 26 25”-36”22 222022 26. For example, a large local exhaust system may also serve as a dilution system, and the HVAC system may serve as a makeup air system (see Appendix III:3-1 for a primer and Appendix III:3-2 for an explanation of these terms). 26 Gauge Round Metal Duct Pipe Model# 26CP4X24. 18 gauge for duct size above 3000 mm (120") thickness 1. Velocity 2000 - 3500 ft/min (10 - 18 m/s) Maximum Velocity. Looking for GREENSEAM Galvanized Steel Snap Lock Pipe, 14" Duct Fitting Diameter, 60" Duct Fitting Length (6EKG0)? Grainger's got your back. 1060 East Pole Road Everson, WA USA 98247 For support: Call 1(888) 330-1345 in USA +1 (360) 738-9835 outside USA [email protected] Price $228. 0 mm; Metric: Imperial: 24 G: 22 G: 20 G: 18 G: 16 G. Our engineers prepare technical engineering bulletins and reports addressing airflow, noise control, and other related topics. Insulation Cone diffusers may be ordered with or without insulation. Power Connectors E1. Other materials are available. 3 Fan System Effect. If you know the CFM of your air handler and the temperature rise needed, you can use the chart below to approximate the KiloWatt rating of the duct heater needed for your application. Then we design a duct system that will deliver the proper amount of air to each room. Ductulator calculats duct dimensions using equal friction method or velocity method. The designation of a pressure class pertains to straight duct and duct fittings except for equipment. Gauge Conversion Chart and other conversion tables for length, tensile and weight. ROUND SPIRAL DUCT AND FITTINGS - E. Duct System Design Guide First Edition ©2003 McGill AirFlow Corporation McGill AirFlow Corporation One Mission Park Groveport, Ohio 43125 Duct System Design. On the other hand, for the hot air ducts, one admits 50% to 75% of the cold air flow according to thermal loads. US Duct assists reps, contractors and companies in the proper design and conveyance of material-laden air. Download PDF of Catalog. NW Minneapolis, MN 55448 Phone: 763-755-7677 Fax: 763-755-6184 Email: [email protected] Fittings are assembled with stitch welds, spot welds, or standing seams and are sealed.