This book is full of useful information for designers and installers of ductile iron pipe. It covers many aspects of pipeline installation such as receiving and handling, trenching, installing, backfilling, testing and disinfecting, and service taps. However, the sidewall support from granular bedding material allows ductile iron pipe to carry greater loads then the pipe could by itself. Conservative assumptions, along with an explicit safety factor, have been employed to assure a conservative design with an adequate overall safety factor. In a more recent development, the ductile iron pipe research association dipra birminghan, alabama announced that its membersthe eight leading di manufacturers in north americano longer will honor a. Truck loads on pipe buried at shallow depths by richard w. Dipra computer programs thickness design of ductile iron pipe hydraulic analysis of ductile iron pipe thrust restraint design for ductile iron pipe design of ductile iron pipe on supports awwa standards ansiawwa c104a21. Thrust restraint design for ductileiron pipe, second edition, 1986. Confronting americas water infrastructure challenge pdf report. Bridge crossings with ductile iron pipe introduction the ductile iron pipe research association dipra periodically receives requests from engineers and contractors concerning recommendations on the design andor installation of pipelines spanning waterways, highways, and railroads. Dipra has recommended polyethylene encasement for thousands of miles of gray and ductile. Below is the available product literature for our ductile iron pipe and corresponding joint types.
Archived from the original pdf on 14 september 2012. This manual is intended as a guide for field welding and cutting cementmortarlined and unlined ductile iron pipe. Installation guide for ductile iron pipe ductile iron pipe research. External the corrosion rate of ductile iron in sea water will normally vary between 2 and 20 mils per year depending on such factors as. This manual is updated regularly to reflect current minimum and uniform requirements from the city of cumming adopted codes and ordinances. The ductile iron used to manufacture the pipe is characterized by the spheroidal or nodular nature of the graphite within the iron. Table 3 friction losses through pipe fittings in terms of equivalent lengths of standard pipe size of pipe small dia. Both materials have identical yield strengths and the same nominal factor of safety of 2. Reach out to our highly experienced team of engineers with your ductile iron pipe questions. For more information on sizing and other specifications, download the submittal sheet located underneath each individual joint. Bedding for shallow installations, ductile iron pipe can be installed without granular bedding material.
About the ductile iron pipe research association dipra from its inception more than 100 years ago, the ductile iron pipe research association dipra has provided accurate, reliable, and essential engineering information about cast iron and now ductile iron pipe to a wide variety of utilities and consulting engineers. Title s900 1 water trench pavement reconstruction dwg dxf pdf s900 2. Dipra researchtechnical director 1 ductile iron pipe may be furnished in shorter lengths per awwa c151. Continuous testing and field experience have brought the production and use of ductile iron pipe to maturity. Spread the tube over the entire barrel of the pipe.
Ductile iron pipe is pipe made of ductile cast iron commonly used for potable water transmission and distribution. American ductile iron flanged fittings the principal standard covering flanged fittings is ansiawwa c110a21. Guidelines installation guide for ductile iron pipe. Move the cable to the bell end of the pipe and lift the pipe slightly to provide enough clearance to easily slide the tube. This catalog provides product information for users of pipe. However, ductile iron pipes conservative wall thickness design doesnt stop here. This technical publication discusses the design basis and important criteria used in the wall thickness design of ductile iron pipe. One of the most important reasons for the success of ductile iron pipe is that, like gray iron pipe before it, it is the subject of the most. This is the 20th edition of the american pipe manual. It is a complete catalog and reference book for engineers, buyers and users of pipe, fittings, valves and fire hydrants.
This manual provides the user with both technical and general information to aid in the design, specification, procurement, installation, and understanding of ductileiron pipe and fittings. Ductile iron pipe is made from recycled ferric scrap, resulting in as high as 95% recycled content dipra member companies are committed to achieving targets the ensure the health and safety of employees and the public ductile iron pipe is designed to ensure 100 years of service life ductile iron pipe earned 69 points, including. View our list of downloadable technical publications addressing benefits and application of ductile iron pipe. Notice this field handbook contains selected information that is excerpted and summarized from the ppi handbook for polyethylene pipe and performance pipe literatures. This program is based on the equations and procedures found in the dipra brochure thrust restraint design for ductile iron pipe. Ductile iron pipes many advantages along those lines will be explored in some detail and, when we conclude, we will have demonstrated why so many utilities and consulting engineers agree that ductile iron pipe is the right decision. A century ago, dedicated american engineers installed iron pipe to create the countrys water systems. The following links organize the technical publication by topic. Research of earthquake resistant ductile iron pipe erdip. Make sure that no dirt or other bedding material becomes trapped between the wrap and the pipe. Ductile iron pipe research association, birmingham, alabama. Pumping station, manual of practice fd4 as published by wef, pvc pipe design manual published by unibell, ductile iron pipe design manual published by dipra, hydraulic institute standards and the recommended standards for wastewater facilities, 1990 ed.
The standard design considers hoop stresses in the pipe wall due to internal hydrostatic pressure as well as bending stresses and deflection in the pipe due to external loads of earth and traffic above the. Ductile iron pipe is a pipe made of ductile cast iron commonly used for potable water transmission and distribution. Proper installation procedures will add immeasurably to the long and useful life of ductile iron pipe. M41 ductileiron pipe and fittings, third edition awwa. This paper will present an overview of corrosion principles, how zinc is applied to ductile iron pipe, how. A convenient pocketsize version of this guide is available. Installation guide for ductile iron pipe dipra ean. Each of the calculators is based upon a dipra brochure with a similar name. Ductile iron is a high strength, tough material used in water and wastewater systems in all 50 states of the united states and in many other areas of the world. Water details these details govern the requirements for construction of water facilities within the city of rochester. There is a much wider variety of joints available for ductile iron pipe than any other piping material, providing greater fle xibility and versatility in pipeline design and installation.
Ductile iron pipe manufacturers have been successfully welding ductile iron pipe for many years and should be consulted on their recommendations for field welding and torch cutting their product. Guidelines installation guide for ductile iron pipe last revised. Principles presented in the dipra publication design of ductile iron pipe on. Select the pdfs you want to add to your submittal package from the list below, or click each link for individual pdfs. If you have any problems or questions about installing polyethylene encasement, contact. The bell and spigot joint, which was assembled by caulking yarn or braided hemp. Its affect on thrust restraint for pvc and ductileiron pipe, presented at awwa distribution systems symposium, september 1989. No need to download or install software, works in contemporary internet browsers. Dip ductile iron pipe dipra ductile iron pipe research association ec end of curve eg existing grade elev elevation evc end of vertical curve. Design manual m41 for ductile iron pipe, design manual m23 for pvc pipe, and design manual m45 for fiberglass pipe. Dip ductile iron pipe dipra ductile iron pipe research association dr dimension ratio dsd development services department ecc engineers certificate of completion. Here are the features you will see with ebaa irons restraint length calculator rlc v7.
Therefore, the ductile iron pipe research association dipra has prepared this guide to assist water utilities, contractors, consult. Published in 1984, the first edition of thrust restraint design for ductile iron pipepresented suggested design procedures for the restraint of thrust forces in pressurized, buried ductile iron piping systems. Continuous testing and field experience have brought the. Ductile iron pipe guidelines technical publications dipra. Ductile iron is a high strength, tough material used in water and wastewater systems in all 50 states of the united states. Service and casting allowances ductile iron pipe design. Awwa manual m41 on ductile iron pipe and fittings is also available. Installation guide for ductile iron pipe dipra ductile iron pipe research association on. Dipra has a technical publication to address virtually every aspect of the application of ductile iron pipe. Mcwane ductile is now taking pipe protection to new heights with the innovative vbio, an enhanced polyethylene encasement. Below you can find the different joints that mcwane ductile offers for ductile iron pipe. With more than five decades of outstanding field experience, ductile iron pipe is widely recognized as the industry standard for modern water and wastewater systems. Dipra research and technical director introduction joints for iron pipe have come a long way. Ductile iron pipe joints and their uses by richard w.
Downloadable pdf brochures about ductile iron pipe and the ductile iron pipe research association dipra are available here. This paper will present an overview of corrosion principles, how zinc. Design of ductile iron pipe on supports d esign procedures for ductile iron pipe in normal underground service have been well established. Star pipe products ductile iron pipe fittings, joint. Ductile iron pipe now is a function only of the difference in the outside diameters. This is the third edition of awwa m41, ductileiron pipe and fittings. Ductile iron pipe guidelines technical publications. Thrust restraint design for ductile iron pipe sixth edition 2006 foreword published in 1984, the first edition of thrust restraint design for ductile iron pipe presented suggested design procedures for the restraint of thrust forces in pressurized, buried ductile iron piping systems. They are available in pdf format for immediate downloading. The soil values in the ebaa program utilize frictional values that were derived from soil box studies performed on surfaces of ductile iron pipe, ductile iron pipe wrapped with polyethylene, and pvc pipe and several different soils. While it covers installation procedures, maintenance, and recommended safety. Design on supports in some situations, both below and above ground, it is necessary to insta.
I would think that basing the decision on whether to use iron pipe or polyethylene pipe upon a publication put out by the dipra is a little bit like letting the fox guard the hen house. Therefore, the ductile iron pipe research association dipra has prepared this guide to assist water utilities, contractors, consulting engineers, and others concerned with the installation of ductile iron pipe. Ductile iron pipe is pipe made of ductile cast iron commonly used for potable water. The mcwane pipe economy offers our complete catalog and reference book for engineers and buyers. This type of pipe is a direct development of earlier cast iron pipe, which it has superseded. M41 ductileiron pipe and fittings, third edition american water awwa manual m41. About 550 years ago, the first cast iron pipes were made with flanged joints, using lead or leather gaskets. Installation guide for ductile iron pipe canada pipe. Ductile iron pipe dip was introduced about 50 years ago as a more economical and betterperforming product fo. An indispensable reference for water distribution systems designers, managers, contractors, and operators, this third edition provides the most current specifications for ductileiron pipe and fittings. Dipra researchtechnical director 1 equation 1 equation 3. Pushon joints the most popular, quickest, and easiesttoassemble joint for ductile iron pipe and fittings in underground applications is the pushon joint.
Research of earthquake resistant ductile iron pipe erdip for fault crossing k. Carlesen, rodger j thrust restraint for underground piping systems, ductile iron pipe news, cipra, spring 1975. American zinccoated ductile iron pipe has been widely accepted and specified domestically since its introduction in the spring of 2015. Dipra has four free webbased calculators that are useful tools for designing and specifying ductile iron pipe. Submittal buttons and cover page entry will be displayed once an item has been selected. These systems are comprehensive tools used to necessitate the level of corrosion control required as well as. Polywrap polyethylene encasement for ductile iron pipe. Ductile iron pipe is also available with thicknesses greater than pressure class 350.
Ductile iron pipe research association home facebook. For more information, please contact a marketing and specifications representative. Awwa manual m41 on ductile iron pipe and fittings is also. Miyajima abstract this study proposes a method for designing a water pipeline system against fault displacements by using earthquake resistant ductile iron pipe erdip. Present levels of corrosion a rado industry database. Wastewater lift station design manual reno, nevada. Awwa m41 ductileiron pipe and fittings engineering360. Ductile iron pipe research association dipra published a proven environmental evaluation system which allows engineers and utilities to determine areas of. Ductile iron pipe is available for water working pressures greater than 350 psi. We make every effort to generate an accurate and complete catalog. These and other standards are referenced throughout this section either by the full ansiawwa designation or by only the awwa numbering, such as awwa c110 or c153.