DUCT BOARD FABRICATION INSTRUCTIONS For heating and cooling air duct systems operating at velocities up to 5000 fpm, 250°F, 2" w. Walkerduct Pro Series Systems provide full capability to install Category 6, 5e and Fiber Optic Cabling and Connections in a flush service fitting. • Evaporator coil size. 5 Polyethylene Encasement ANSI/AWWA C110/A21. Lowe's and the gable design. Continuous testing and field experience have brought the production and use of Ductile Iron pipe to maturity. 2129 Flanges 13 Light/Extra Light Pipe To Australian Standards 14 Medium & Heavy Pipe To Australian Standards 15. o Types of Ducts, Duct Fittings, Dampers, Types of Diffusers, RAG, Flexible Duct, Flexible Connector, End Cap, Sound Attenuator etc. MSS-SP-6- 2001 "Standard Finishes for Contact Faces of Pipe Flanges and Connecting-End Flanges of Valves and Fittings" MSS-SP-58- 1993 "Pipe Hangers and Supports-Materials, Design and Manufacture" MSS-SP-69- 2002 "Pipe Hangers and Supports-Selection and Application" 3. A saddle cut is a way of cutting one pipe to match the outside curved surface of another pipe. 3 Ductwork System Effect 35 11. You Can Just Clamp It Together:Nordfab’s Quick-Fit ductwork components have a rolled edge on the ends which provides easy connection to other components with use of a barrel-type clamp. of the exhaust duct shall be 35 feet (10 668 mm) from the connection to the transition duct from the dryer to the outlet terminal. This catalog refers specifically to the HARRISON SUPERDUCT® product line (duct and duct fittings). Shop structural pipe fittings in the pipe & fittings section of Lowes. iv) Process measurement and control functions The representation should be in accordance with the requirements stipulated in ISA-S5.
A steam jacket circuit is formed by a number of jacket sections (pipe, fittings, valves etc. 8 (2)*, ANSI B16. In addition, a vast range of fittings and jointing systems is also available from Solvent Weld fittings and integral. From the duct layout, dimensions and airflow rates, find the dynamic pressure losses for all the bends and fittings v. ^| Insulate and properly support piping. 2129 Flanges 13 Light/Extra Light Pipe To Australian Standards 14 Medium & Heavy Pipe To Australian Standards 15. All materials required for field assembly of knocked down duct are available. The process involves the following key elements. Contact your local PG&E representative to obtain. 1 Duct Frictional Resistance 33 11. run PiPe SizeS outlet sizes 6" and less fit a number of run pipe sizes, and the fittings are marked accordingly. Proper suction piping design and installation considerations consist of pipe and pipe fittings and their relationship, quantity, and relative location to the pump suction nozzle. 3 "Process Piping" or ASME. 10M Product. Raster Printing fixes the issue of the rise/drop symbols not printing, but does not fix the problem with the fittings themselves. Innovative push-to-connect design makes for quick and easy installation. 11-2005) Center to End A Center to End 45° Elbow C Outside Diameter Of Band H Minimum Wall Thickness G Length of Thread Min. Where fittings are used, the maxi-mum length of the exhaust duct shall be reduced in ac-cordance with Table M1502.
Design of PE Piping Systems 159 The Hydrostatic Design Stress, HDS, is the safe long-term circumferential stress that PE pipe can withstand. These fittings are not intended for use with Victaulic couplings for plain end pipe (refer to Section 14. If you turn on a dust collector with out anything attached to it - pipe, flex or filter bags, it will pull max volume at free air without any resistance. There is a gener al application section that applies to all types. Duct Fittings: Rectangular Ells, Tees, and Reducers Rectangular Side Take-offs and Vertical Ells Multiple Fittings in a Duct System Basic How-To Ductwork Installation. Residential Duct Sizing Guide The following duct sizes are based on a fraction drop of. Steel butt-welding pipe fittings Part 2: Elbows and bends for use at full service pressure Supersedes DIN 2605-2, February 1991 edition. Featuring pictorial outlines of each fitting, this CD is useful to design engineers dealing with a variety of duct fittings. FITTINgS Custom fittings shall conform to all the strength requirements of ASTM C76/C76M, C655/ C655M or ASTM C1417 depending on the application and design requirements. Pipe and pipe fittings as used in this specification also refer to tube and tube fittings. o MDP - Maximum Design Pressure for Piping Systems o Branch Reinforcements - Reinforcement Pad Calculations. Water pipe shall be installed in accordance with the manufacturer’s printed specifications and instructions, and in conformance with AWWA C151. 15 Flanged Ductile-Iron Pipe. Submit piping layout profile drawings showing location and dimensions of pipe and fittings; submit after equipment and valve submittals have been reviewed and marked "Resubmittal. B) AWWA C208-96 elbows are made from miter cut pieces of pipe.
To do that, we size ducts and choose fittings using something called equivalent length. • Explain why and how to use mastic and fiberglass membrane. Richard S Budzik Book White1 Fittings used Today that Require Triangulation Sheet Metal. 1 Introduction to Pipe Fittings Fittings are used in pipe and plumbing systems to connect straight pipe or tubing sections, to adapt to different sizes or shapes, to branch or re-direct the piping system and if necessary to provide a jointing method if 2 dissimiliar piping materials are used in the one system. Shop galvanized pipe & fittings in the pipe & fittings section of Lowes. pipe size part number 1/4 802002 1/2 802005 3/4 802007 1 802010 2 802020 3 802030 90° socket elbows nominal pipe size part number 1/4 806002 3/8 806003 1/2 806005 3/4 806007 1 806010 1 1/4 806012 1 1/2 806015 2 806020 2 1/2 806025 3 806030 4 806040 5 806050f* 6 806060 8 806080 10 806100f* 12 806120f* 14 806140f 16 806160f 18 806180f 20 829200f. The ducts and fittings below and above these sizes are available on request. Duct layout indicating sizes, configuration, liner material, and static-pressure classes. -- but we here at PlumbingSupply. other pipe materials, which means it is not as rigid. In doing so, the restraint is shown to have no detrimental effect on the pipe and will have the same pressure rating and safety factor as the pipe on which it is used. 2 SUBMITTALS Shop drawings and manufacturer's literature shall be submitted to the WPWD Engineer for approval. Forget about stove pipe and duct tape, if you’re looking for a truly efficient, easy to assemble duct system, this. Description goes here Duct Direct 8610 Wallisville Rd. 11-2005) Center to End A Center to End 45° Elbow C Outside Diameter Of Band H Minimum Wall Thickness G Length of Thread Min. Straight Duct DUCT & FITTINGS WITH ANGLE RINGS (AVAILABLE 100 - 3000) STANDARD LENGTHS("L") Type no. NOMENCLATURE EXAMPLE: 231-8-6 ATTRIBUTE: 231 RUN TEE 8 1/2 TUBE O. Drip Irrigation Info; ©2019 Rain-Flo Irrigation Agricultural Vegetable Planting Equipment. 8 (2)*, ANSI B16.
Design Master Offers Customization. HVAC Training for Technicians: Duct Design Basics. Design aids for pipe flexibility, space span, and safe spacing calculation is also provided. rectangular duct and fittings are one part of our complete line of HVAC products. Not all aspirating pipe systems on the market have been LPCB approved, but our pipe and fittings have. The Easy Duct adjustable nipple also telescopes in length to eliminate the need for precise measurements and wasted parts due to improper measuring. Chilled water design supply water temperature shall be 42 degrees F, with a minimum return water temperature of 58 degrees F to maximize the usable lifetime (optimize pipe size of existing piping) of water systems. 03 Purpose and Scope This Gas Design Standard (GDS) provides a list of PG&E approved manufacturers. System designed to ASTM D1599 3 to 1 short term safety factor. air flow dynamics & duct sizing reference guide acca residential duct diagnostic & repair common duct fittings no. All of our products are proudly made in the USA. Consult Spears ® warranty for additional details. Lowe's and the gable design. ), piping software & application systems for fire protection, oil & power, commercial building construction & more. It's as easy as 1, 2, 3. Forming a miter cut of a rectangular cross-section duct requires the user to cut each of the four faces of the duct.
This "Equal-Friction" method of duct sizing should be adequate for normal residential furnace heating and air conditioning applications. 3000 & 6000 class fittings are available in both Threaded and Socket Weld types. Where fittings of configurations not shown in the HVAC-DCS are shown on the contract drawings, they shall be constructed as though they were therein. Information Required for Duct Construction 1. In this example, the plan has a Rough Ceiling height of 134 1/2 to allow for the duct-work, the ducts have been set at a height of 117". Layout and Fabrication of Structural Steel and Pipe Properties and Uses of Metal. 8 Aspect Ratio 32 10. 11-2009 (Revision of ASME B16. 9 Dimensions of Solder Joint Ends for Wrought (W) and Cast (C) Pressure Fittings, inches Table 14. Factory and shop fabricated ducts and fittings. experience on pipe-support design can be found in Design of Piping. Materials designated tube or tubing in the specifications are treated as pipe when intended for pressure service. FlameGuard® CPVC FIRE SPRINKLER PRODUCTS Corrosion Resistant • Superior Flow • Ease of Installation MANAGEMENT SYSTEMS Complete System of Pipe, Fittings & Solvent Cement. The exterior of all pipe and fittings, unless otherwise specified, shall receive a standard bituminous outer coating. 23240 Chagrin BlvdSuite 405 • Cleveland,.
pipe tHread basics Regrettably, pipe thread size designations have no connection to the part size because of how pipe sizing was conceived in the early 20th century. PDF format weights of pipes, contents, insulation, valves, fittings, and possibly the supports. The following are ways to design for good airflow in a whole-building ventilation system: Use the largest possible duct diameter, preferably in smooth rigid duct rather than flex duct. The Level 2 Duct Design TDP will present many areas of design enhancement, such as SMACNA Duct Construction Standards, duct design code requirements, fitting selection using loss coefficients, avoiding acoustic issues, unique VAV system duct fea-tures, and using life cycle cost analysis as a design criteria. It has a closed area of. 39 Malleable Iron Threaded Pipe Unions. See page 6-6 for further information. A comprehensive duct layout indicating sizes, design airflows, pressure class, and routing of the duct system. This manual provides the HVAC system designer detailed information on duct design and U. Specification for Piping Design / Materials 3. Sound engineering principles and practices must be exercised for the proper design of fuel gas piping systems, in addition to compliance with local codes. • Components of Air distribution system. Design, construction and maintenance of pipelines for water supplies require the production and use of various types of fittings. Description Pipe Filament-wound fiberglass reinforced epoxy resin pipe with integral 0. Drawing intersections, miter joints, orangle peels and other fabrication is one way of avoiding math. • Figure and table numbers in the text are italicized. Thrust Restraint Design for Ductile Iron PIpe Design of Ductile Iron Pipe on Supports AWWA Standards ANSI/AWWA C104/A21. rectangular duct and fittings are one part of our complete line of HVAC products. Not providing enough returns is a common ductwork design flaw that leads to comfort complaints.
On the General panel, set the Height of the duct. Style of branch connection Weldolet®, hredolet®, Sockolet®, Latrolet®, etc. 1 RECESSED CEMENT BLOCKS FOR EMBEDDING M&E PIPES. 175 Layout of Pipelines, 175 Calculation of Angle of Fabricated Pipe Bend, 176 Reinforcement of Fittings, 176 Collar Plate Design, 180 Wrapper-Plate Design, 182 Crotch-Plate (Wye-Branch) Design, 183 Nomograph Use in Wye-Branch Design, 185 Thrust Restraint, 191 Anchor Rings, 1997 Joint. Proper suction piping design and installation considerations consist of pipe and pipe fittings and their relationship, quantity, and relative location to the pump suction nozzle. This Standard covers pressure-temperature ratings, marking, material, dimensions and tolerances, and tests for Classes 150 and 300 cast ductile iron pipe flanges and flanged fittings. Each PVC Pipe Project Plan has an easy-to-follow Adobe PDF document for download, as well as an accompanying Trimble SketchUp™ file. Design Methodologies Equal Friction This design methodology sizes the supply duct system for a constant pressure loss per unit length. pipe and fittings with rolled ends. Pipe Size 2000 3000 6000 2000 3000 6000 2000 3000 6000 2000 3000 6000 B L2. Shop structural pipe fittings in the pipe & fittings section of Lowes. Design, manufacture and distribute high and low. Effective Length The length of duct used for design purposes that includes the straight length of duct added to all the fitting equivalent lengths. Duct Construction Standards For Positive & Negative Static Pressures And Submittal Data Engineering Specifications 111 Riverview Drive • Monessen, PA 15062 • (724) 684-5500 • 1-800-466-9374 FAX (724) 684-8697 • www. 04 JOINTS FOR DUCTILE IRON PIPE AND FITTINGS AND CAST IRON FITTINGS A. CCTF stainless steel welding fittings are manufactured and available in the following types: 304, 304L, 316, 316L and 347. Sheet Metal Duct Work Df84823 New Version 2019 Chapter 13 Layout and Fabrication of Sheet Metal andDownload Chapter 13 Layout and Fabrication of Sheet Metal and Ebook PDF: Chapter 13 Layout and Fabrication of Sheet Metal and Fiberglass Duct Topics You will be. The product line is comprised of process tanks, fume collectors and. 3 duct sizes -2 3/4″, 3 3/4″, 5 1/2″ accommodate single or multiple lineset configurations.
You can let the program size all the ducts for you (using three different sizing methods), or enter your own sizes to analyze an existing design. University of Colorado Boulder, CO, USA Overview System Description Secondary HVAC Systems Air distribution Room diffusers and air terminals Duct Design Fan characteristics Air Handling Units Water distribution Cooling coils Pipes and pumps Primary HVAC Systems Electric chillers. Aluminum Pipe Fittings; Ball Valves; Black Poly; Charts/Layouts. Precision Duct Systems ﬁttings are sized to slip into, and should be used along with spiral pipe manufactured by Precision Duct Systems. 6" round duct used for branch ducts because of availability and cost. World Wide Metric offers the 5000 series copper solder fittings, which provide a complete, reliable and safe copper pipe fitting system that can be used in a variety of applications and industries. TDF Flanged Connection Transverse Duct Flange is a 4 bolt duct connection system that eliminates time and waste. All fittings shall have bell and spigot joint configurations to mate with adjoining pipe sections. experience on pipe-support design can be found in Design of Piping. Also I'm not familiar using the coefficient for duct fittings, i think i need to use smacna if i will look using the coefficient when finding the duct fittings loss?. GUIDE TO MAXIMUM AIR VELOCITIES IN DUCTS Leaflet L115 Page 1 of 1 issued 07/08/01 When considering the acoustic design of a ventilation or air conditioning system, it is important to take into account noise. Used to connect pipes of different lengths and sizes, these pipe fittings and flanges should make the right connections. PDF format weights of pipes, contents, insulation, valves, fittings, and possibly the supports. Suction source design. Friction Losses in Pipe Fittings Resistance Coefficient K (use in formula hf = Kv²/2g) Fitting LD Nominal Pipe Size ½ ¾ 1 1¼ 1½ 2 2½-3 4 6 8-10 12-16 18-24. 03 Purpose and Scope This Gas Design Standard (GDS) provides a list of PG&E approved manufacturers. Volume I: Pressure Piping Systems Design Municipal Technical Manual Series Blue Brute® Piping Systems Bionax® Piping Systems IPEX Centurion® Piping Systems IPEX FusibleTM Pipe TerraBrute® CR Piping Systems CycleTough® Piping Systems Blue904TM Water Service Tubing Q-Line® Water Service Tubing We Build Tough Products for Tough Environments. No matter how much money. rounded equivalents of the inch dimensions). 020-inch (0.
DUCTWORK DESIGN CONSIDERATIONS 33 11. Meyer, Carol Markos, Steve Meyer] on Amazon. Ductile iron pipe for horizontal directional drilling 1. Male NPTF Pipe - Rigid 11343 Male NPTF Pipe - Swivel O-Ring not compatible with Phosphate Ester fluids. The current standards are ANSI B31. This manual provides a review of experience and design theory regarding steel pipe used for conveying water. Liner Materials Pipe Dimensions. fittings will be verified when the final ductwork layout is available. A comprehensive duct layout indicating sizes, design airflows, pressure class, and routing of the duct system. (SMC) TDC, Slip/Drive and Raw Sheet Metal Connectors, Inc. See page 30 for Pipet Consolidation Chart. 71 mm zPipe nominal Pressure rating H-010 K Pa zPipe Nominal Stiffness 1388 Pa STIS zPipe Actual Stiffness 1432 Pa STIS Hoop Tensile Strength 45 MPa Axial Tensile Strength 25 MPa Stiffness Comparison Chart at appro 25 Years of Operation 8. In the model it looks correct. This Handbook gives easy-to-use guidelines and compiles all relevant information in one place. The ducts and fittings below and above these sizes are available on request. These values are defined as the flow rate through the valve required to produce a pressure drop of 1 psi. com Fiberglass Reinforced Piping Systems. Welded and Seamless Steel Pipe for High and Low Temperature and Pressure Grades A, B Speciﬁcation ASTM A106 Dimensions ASME B36. You Can Just Clamp It Together:Nordfab’s Quick-Fit ductwork components have a rolled edge on the ends which provides easy connection to other components with use of a barrel-type clamp. rectangular duct and fittings are one part of our complete line of HVAC products.
The same applies to fittings. 11 Rubber-Gasket Joints ANSI/AWWA C115/A21. 2 Duct Equivalent Length 35 11. 0 out of 5 stars 6. Sound engineering principles and practices must be exercised for the proper design of fuel gas piping systems, in addition to compliance with local codes. If you are seeking technical information on Unistrut Pipe and Conduit Supports and Clamps, this catalog is for you. That's why Design Master lets you control how your diffusers and callouts look, which fittings are used when drafting ductwork, and more. In addition to wasting money, a poor. HARRISON SUPERDUCT® HARRISON SUPERDUCT® offers a complete range of fittings for the installation of venting and fume scrubbing systems. ©2019 Rain-Flo Irrigation Agricultural Vegetable Planting Equipment. HVAC – HOW TO SIZE AND DESIGN DUCTS. 10 Solder Requirements for Solder Joint Pressure Fittings, length in inches Table 14. The first thing to do then is to make a layout. The exterior of all pipe and fittings, unless otherwise specified, shall receive a standard bituminous outer coating. Where this is not possible (perhaps on larger fittings). ASHRAE DUCT DESIGN. ASHRAE DUCT DESIGN. ) which are connected in series by jumpovers. Pipe and pipe-fittings are produced from a various materials for the transport of wide variety of solids and fluids. DUCTILE IRON PIPE DESIGN.
Sheet Metal Duct Work Df84823 New Version 2019 Chapter 13 Layout and Fabrication of Sheet Metal andDownload Chapter 13 Layout and Fabrication of Sheet Metal and Ebook PDF: Chapter 13 Layout and Fabrication of Sheet Metal and Fiberglass Duct Topics You will be. Small bore pipe generally includes piping which is two inches and smaller in diameter. Hydronic System Design Manual ©DECTRA CORPORATION - March 2013 2 The GARN® unit, all related heating equipment (including pumps, piping, fan coils, hot water baseboard, radiant floor heating systems, etc) and all electrical equipment (including power wiring, controls, control wiring, back up. Suction source design. Duct Inspection Checklist ACCA Manual Verifying 3 D® Verifying ACCA Manual D® Procedures Why are duct design calculations important? Achieving occupant satisfaction is the principal goal of any HVAC design. Where fittings of configurations not shown in the HVAC-DCS are shown on the contract drawings, they shall be constructed as though they were therein. Select a fan that can provide sufficient FTP for the index run vi. For residential air duct designs ACCA’s Manual D is the procedure recognized by the. compdf30exp032p12Nyborg. Ductwork is fabricated. Design of Flexible-duct Junction Boxes ACCA Manual D, Group 11 Fittings • Recommendations: • Entrance has a diffuse fitting that recovers velocity pressures and prevents swirl (optional) • Straight approach and straight exit • Exit opening on side (no top or bottom exits) • Exit opening at least two diameters from entrance (L). Here in our Hvac for Beginners duct fittings section we will look at some common duct fittings and configurations. A Flanged Olet® is a combination of a Weldolet® and flange, available in classes 150 thru 2500 and any combination flange type. Innovative push-to-connect design makes for quick and easy installation. US Duct, a manufacturer of industrial ducts and industrial ductwork solutions, focuses on delivering quality products quickly and at the best price.
com ZEN Industries manufactures HVAC ductwork and fittings for Commercial, Industrial, and Institutional HVAC Projects. 9, Design Criteria for Corrugated Metal Pipes AASHTO LRFD Bridge Design Specifications, Section 3, Loads and Load Factors. 28) Elbows, Stub Ends, Tees, Reducers and Caps. Each block will take on the current layer in your drawing when inserted. brands you trust. 3 Minimum Length. This new company offers pipe systems in uPVC, mPVC and High Density Polyethylene in a range of sizes from 16 mm up to 630 mm in diameter. Fabricated pipe fittings (first revision) Water hoses of rubber with braided textile reinforcement exposed to high temperature conditions - Shifted From 1:2 ; Cast iron gate valve ( for low pressure fuel gas lines) (first revision) Cast steel gate valves ( with rising spindle) (Second revision) Specification For Gland Compensators. The standard dimensions of ducts and fittings range between 130 mm and 2500 mm for any side length. hydrostatic design basis. Find quality structural pipe fittings online or in store. ©2019 Rain-Flo Irrigation Agricultural Vegetable Planting Equipment. panel pipe that has lived up to the promise of quick response drainage performance, long-term durability and affordable installed cost. 1 Introduction to Pipe Fittings Fittings are used in pipe and plumbing systems to connect straight pipe or tubing sections, to adapt to different sizes or shapes, to branch or re-direct the piping system and if necessary to provide a jointing method if 2 dissimiliar piping materials are used in the one system. Download Butt Weld Pipe Fittings PDF. The next step in the duct design process. And talk about versatility, Quick-Fit offers just about every fitting you'll ever need. A specially designed gasket inside the clamp seals the joint tightly. 1 This practice describes general procedures for making joints with polyolefin pipe and fittings (excluding polyethylene pipe and fittings) by means of heat fusion joining techniques in either a shop or field environment.
), piping software & application systems for fire protection, oil & power, commercial building construction & more. Abs Plastic Pipe Fittings Abs Plastic Pipe Fittings Top Popular Random Best Seller sitemap index There are a lot of books, literatures, user manuals, and guidebooks that are related to abs plastic pipe fittings such as: complete conditioning for golf book dvd complete conditioning for. Factory and shop fabricated ducts and fittings. Hydraulic Piping Standard Handbook is intended for professionals working within industries where hydraulic piping is used. 9 (3), and MSS SP-75 (4), but these only provide basic dimensional information on fittings and do not include design guidelines. Should duct design methods adjust to market realities? • Availability and cost of duct fittings with low friction loss. Southwark Metal Manufacturing is a manufacturer of HVAC sheet metal pipe, duct, and fittings for residential and light commercial applications. 4 Installation Issues 37 11. All wyes are manufactured from the highest quality galvanized steel. principles used to determine layouts for sheet metal fittings. You Can Just Clamp It Together:Nordfab’s Quick-Fit ductwork components have a rolled edge on the ends which provides easy connection to other components with use of a barrel-type clamp. Both methods remove the same amount of. Numerous types of layout tools, cutting tools, and forming equipment are used when working with sheet metal. Each engineering firm has its own conventions for duct design and drafting. 1 PRESSURE PIPE AND FITTINGS FOR HORIZONTAL DIRECTIONAL DRILLING A. Forget about stove pipe and duct tape, if you’re looking for a truly efficient, easy to assemble duct system, this. IX of the ASME Codes for Welding, base metals (pipe and fittings) have been assigned P-numbers and group numbers. 9 Dimensions of Solder Joint Ends for Wrought (W) and Cast (C) Pressure Fittings, inches Table 14. Features of this Manual This manual has several features that make it easy to use online. hydraulic design results in poor performance of the irrigation system, leading to stressed landscaping material, or even broken pipes and flood damage.
AdvanEDGE pipe's rapid collection and removal of water is equally appropriate. plasticpipe. Meyer, Carol Markos, Steve Meyer] on Amazon. FlameGuard® CPVC Fire Sprinkler Products carry a limited lifetime warranty against defects in material or workmanship. BS 6464 Specifications for reinforced plastic pipe, fittings and joints for process plant. 04 for fittings available for plain end applications). ASTM A998 Practice for Structural Design of Reinforcements for Fittings in Factory-Made Corrugated Steel Pipe for Sewers and other applications AREMA Manual for Railway Engineering, Section 4. Schedule 40 head loss per 100' values are usually used for other wall thicknesses and standard iron pipe size O. Ductile iron pipe for horizontal directional drilling 1. For a quote on your design, please fax your plans to 231-269-3821 or fill out our “ Contact Us ” form. 3-G, ASME B31. This is a comprehensive standard for the design of pipework systems. brands you trust. Air flow problems have plagued the HVAC industry for years. LAYOUT AND FABRICATION OF SHEET-METAL AND FIBER-GLASS DUCT Although many of the parts and fittings used in sheet-metal work are stock items, which are simply. Simply load the 2D Pipe Fittings Library menu into AutoCAD by following the instructions that are included. 0 Layout Tools The layout of metal is the procedure of measuring and marking material for cutting, drilling, or welding. DUCTILE IRON PIPE DESIGN. 3 duct sizes -2 3/4″, 3 3/4″, 5 1/2″ accommodate single or multiple lineset configurations. Sound engineering principles and practices must be exercised for the proper design of fuel gas piping systems, in addition to compliance with local codes. Layout For Duct Fittings Pdf.