We manufacture a full line of service and extra heavy cast iron soil pipe and fittings from 15, and doublehub pipe from 6. Erosion, excessive traffic loading, frost, expansive soils, and poor installation sometimes result in beam loading on buried. Ansiawwa c600 installation of ductile iron water mains and their appurtenances requires that newly insta. 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. Cast iron installation as the leading manufacturer of cast iron soil pipe and fittings, charlotte pipe and foundry can be your onestop source for all your cast iron piping system needs. Although these methods may change according site conditions, kubota would advise the site supervisor. Lower the pipe into the trench and make up the pipe joint with the preceding section of pipe. Below we provide the answers to several frequently asked questions regarding ductile iron pipe installation. Standards on polyethylene encasement materials and their installation to provide corrosion protection, when required, for ductileiron pipe and fittings. Damage to ductile iron pipes, caused by improper handling during transportation, may be rectified by applying certain repair procedures. A discussion of steel pipe versus ductile iron pipe. Installation procedure for restraining mechanical joint appurtenances on ductile iron pipe conforming to ansi awwa c151a21. Ductile iron pipe all ductile iron pipes shall meet the physical property recommendations of astm a536, ductile iron.
It combines the physical strength of mild steel with the long life of gray cast iron. This installation guide is aimed at organisations and individuals responsible for the installation of ductile iron pipes and fittings for the water industry. This manual is intended as a guide for field welding and cutting cementmortarlined and unlined ductile iron pipe. A more detailed description of the joints used with ductileiron pipe is found in chapter 5 of this manual. Move the cable to the bell end of the pipe and lift the pipe slightly to provide enough clearance to easily slide the tube. Standard belled ductile iron pipe, manufactured in accordance with ansiawwa c151a21. 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. It is always assumed that the pipe will be uniformly supported along its length by the soil beneath it. Ductile iron pipe can, and has been used for both directional drilling and microtunneling installations. Ductile iron pipe, a product of advanced metallurgy, offers unique properties for conveying water under pressure, and other piping uses.
It can be planned in three aspects, and it can be agreed according to. Reinforced concrete pipe ductile iron pipe 500 mm 20 in in diameter and smaller reinforced concrete cylinder pipe 3. Provides practical information about the design and installation of ductile iron pressure piping systems for water utilities. Picture 2set the hydraulic jack, a wood block and iron plates in the pipe. Picture 3gradually expand the diameter until the diameter slightly exceeds the required dimensions. Natural 250 diameter pipe for irish water supply project. Introduction this method statement covers the procedure involved in handling and installation of underground grpfrp piping in trench. Purpose the purpose is intended to assist the client, customer installer in understanding the. As the leading manufacturer of cast iron soil pipe and fittings, charlotte pipe and foundry can be your. Ductile iron pipe is available in 3 to 64inch diameters and is manufactured in 18 to 20foot laying lengths. Pdf installation of the pipelines made of ductile iron. Ductile iron to astm a 536 minimum tensile strength 70,000 psi yield strength 50,000 psi elongation 5% water working pressure gray cast iron 2 12 ci fittings rated 250 psi.
A discussion of steel pipe versus ductile iron pipe page 3 of 6 the superior beam strength of steel pipes is a key reason for its frequent selection over ductile iron pipe in seismic zones, as well as for stream and river crossings. Construction and maintenance durability, ease of installation, available standard fittings, and contractor familiarity make ductile iron pipe costcompetitive and the material of choice for current wastewater applications. Pvc vs ductile iron pipe installed cost comparison calculator 1. Hdd method with ductile iron pipe installation does not differ from installation with other materials. Frequently asked questions ductile iron installation. We manufacture a full line of service and extra heavy cast iron soil pipe and fittings from 2 15, and doublehub pipe from 2. C600 standard covers in detail the installation of ductile iron water mains, including assembly instructions for pushon joint pipe. The hardness of ductile iron pipes is rather difficult in general cast iron body testing, which is accomplished by several parts.
Ductile fittings in a cage pallet ready for dispatch. The required thickness of cast iron pipe is determined by considering internal pressure and trench load in combination, both of which apply to water mains. This manual has been compiled to offer some quick and effective methods of repairing damaged pipes. It is the contractors responsibility for locating leaks and restoring the bedding and pipe zone material in accordance with the standard plans and these specific ations. Water test for ductile iron pipe all new water pipeline construction shall be hydrostatically tested in accordance with hydrostatic testing, awwa c600. Pipe and fittings should be clean of excess dirt or mud prior to installation of the polyethylene material for encasement. In 1664, french king louis xiv ordered the construction of a gray iron pipe main extending 15 miles from a pumping station at marlyonseine to versailles to supply water to the fountains and town. American ductile iron flanged fittings ansiawwa c110a21. The test pressure shall not be less than 150 psi at the highest point. Pvc vs ductile iron pipe installed cost comparison calculator. Guidelines installation guide for ductile iron pipe. The installation of all new water services shall be done in accordance with the latest revision of awwa standard c600, c901 and c902 plus the additional requirements.
Pe pipe joining procedures 327 chapter 9 pe pipe joining procedures introduction an integral part of any pipe system is the method used to join the system components. Set consists of two half clamps and hardware that attaches pvc pipe to leemco ductile iron fittings. Installation guide included in this installation guide are the required. Loose polyethylene encasement was first used experimentally in the united states in 1951 for protection of gray iron pipe.
If a rigid pipe is overloaded, or if the load is not distributed around the pipe, a rigid pipe will fail by cracking. As usual, as usual, the first stage for hdd installation is pilot bore drilling. What is the purpose of the testing allowance in ansiawwa c600. Fieldcutting of american ductile iron pipe can be easily performed, thus eliminating the necessity for factorymade special. Pushon joints the most popular, quickest, and easiesttoassemble joint for ductile iron pipe and fittings in underground applications is the pushon joint. They provide clear and concise guidance for the handling and installation of ductile iron pipelines. These instructions are based on best practices, which are acknowledged within the industry. Procedures for the investigation of soil to determine when polyethylene protection is indicated. Pipe fittings installation instructions pdf download. Pipe to fitting joint restraints page 12 lb, lbd, dlbseries pipe to pipe joint restraints page lppseries pipe to pipe joint restraints.
The minimum cover for ductile iron pipe is 30 inches. The hardness test can be done in the batch inspection of cast iron pipe products. The real life expectancy of cast iron pipe is unknown, but is usually estimated at 100 years or more. The story of a marine grunt in the first battle of khe sanh april 1967 duration. Ductile iron pipe the hp lok restrained joint has a working pressure equivalent to the working pressure rating of the parent pipe with a maximum working pressure rating of 350 psi. The 12 chapters outlines the procedure for calculating pipe wall thickness and class, and describes the types of joints, fittings, valves, linings, and corrosion protection a. The protective caps of ductile iron pipes for drinking water supply are only to be removed directly before installation fig. Polyethylene encasement for ductileiron pipe systems. This manual is intended as a guide for field welding and cutting cementmortarlined. While it covers installation procedures, maintenance, and recommended safety. Procedure 1 2 4 5 3 1position the pipe so that the minimum diameter point is located vertically. Ductile iron pipe and fittings download pdfepub ebook. Ductile iron pipe guidelines technical publications. An hp lok ring that is factory installed in the bell provides a positive axial lock between the bell interior surface and a retainer weldment on the spigot end of.
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