When pipes such as polyethylene, pvc and metal pipes. Butt fusion is the most important and widely used method of connection for hdpe pipes larger than 110 mm. When pipe is listed by type, the contractor may use any pipe material that meets the requirements of that type. Polyethylene joining procedures butt fusion joining procedure for field joining of polyethylene pipe. Pipeline laying proceedure welding pipe fluid conveyance. An integral part of any pipe system is the method used to join the ansystem components. Suggested loose storage stacking heights in rows for hdpe pipe. Installation procedures vary for mechanical couplings based upon the. Csa international 178 rexdale boulevard toronto, on m9w 1r3. To prevent damage to the bell or spigot when moving pipe sections, do not drag or strike pipe ends against anything.
Highdensity polyethylene black gas 5 physical properties table 2 lists general physical properties of jm eagle highdensity polyethylene pipe. A brittleness test shall be conducted in accordance with the requirements specified in aashto m 252 or m294. The installed pipe shall be inspected by the consultant. Plastics pipe institute handbook of polyethylene pipe. The manitoba water services board section 022180 standard construction specifications pipe excavation, bedding 201 september 3 and backfill page 2 of 11 1. Kuzeyboru hdpe pipes have a minimum lifetime of 50 years and are valid at a. The floatandsink installation method was adopted to laying the pipeline with 2500mm diameter into the seabed in the project. Cod ducts are used to provide a single and continuous duct laying operation from one point to another between manhole to manhole, without any cut. Proper soil support under the bottom of the pipe is also necessary to maintain grade. Purpose the purpose is intended to assist the client, customer installer in understanding the.
Electrofusion welding method statement water management solutions. From the lay down area to the trench site, the pipes shall be transported through trailers. Hdpe pipe is extremely durable, and relatively expensive compared to other pipe, such as pvc. Install the pipe according to approved shop drawing. Method statement for installation of hdpe pipes written by. Kuzeyboru hdpe pipes for the use of pipe laying of soil conditions of soiling and chemical structure of the soil. Installation method statement of hdpe piping method. Spreader bars may be used when multiple support locations are required. Pipe borrow type c for pipe trenches below the roadway or shoulders, 95% or more of maximum density borrow type c for pipe trenches other than below roadway or shoulders, to a height 12 above top of pipe and remainder to depth shall be backfilled with existing material. Tr33, generic butt fusion joining procedure for field joining of. Proper engineering design of a fusionssystem will take into consideration the type and effectiveness of the techniques used to join the pipe and appurtenances, as well as thosethe durability of the resulting joints.
Installation and design of large diameter of hdpe pipeline. Inspection checklist pipeline inspection checklist. Start filling in water into pipes by using hand pump. Since its discovery in 1933, polyethylene pe has grown to become one of the worlds.
Pipeline laying proceedure free download as pdf file. The line and grade of the trench according to the cut sheet. Standard construction specifications and drawings for. It is a method of jointing pipe ends by way of heating and cooling under pressure, resulting in pipe joints as strong as the pipe itself. Introduction this method statement covers the procedure involved in handling and installation of underground grpfrp piping in trench. An integral part of any pipe system is the method used to join the system components. While supporting lengths of pipe evenly, alternate bells for each row of pipe. Installations should be performed only by personnel that have been trained, qualified and certified for electrofusion welding. Proper engineering design of a system will take into consideration the type and effectiveness of the techniques used to join the piping components and appurtenances, as well as the durability of the resulting. Scope of work the scope of this method statement is to define all the procedures and inspections to be followed during installation of hdpe pipes at various locations and systems at king abdullah petroleum studies and research centre project kapsarc in. The joint conditions applied during the pe 100 pipe laying have an impact on the service life of the pipes. Underground installation of pe piping engineered pipe group.
Observe the pipe while being laid to be sure the pipe has full bearing and is fully into the pipe bedding and is centered in the trench. Hdpe pipe and fittings shall have a smooth interior and corrugated exterior. Hdpe pipe hdpe 100 pipes and polyethylene piping systems. Minimum trench width will depend on site conditions and embedment materials. Generic butt fusion joining procedure for field joining of polyethylene pipe. Connect pressure gauge to the lower section of pipeline. Transportationtransportation ofof liquidsliquids andand gasesgases fromfrom oneone placeplace toto anotheranother placeplaceplaceplace toto anotheranother placeplace.
Physical property data for hdpe polyethylene pipe table 2 for data, sizes, or classes not re. Hdpe pipe is generally used underground and with a high rate of flow of whatever is being transported. Verifying that the correct pipe has been delivered for the applications on your project. Procedure of pipe laying santa maria water district. Lifting large diameter pipe stringing or laying out the pipe along the proposed trench line is a commonly used practice which allows the pipe to be picked up and installed in one operation. Pipe excavation, bedding and backfill manitoba water services. Advanced drainage systems, inc ads and hancor, inc provides innovative drainage and water conservation solutions using corrugated high density polyethylene hdpe. Can be used with a variety of pipe materials pvc, hdpe, steel can be used for a variety of types of pipe installation water, sewer, storm. The following installation manual was written to give general introduction of. It would not typically be used in a small scale system, like a home or a school or other general building. Check each pipe length for cracks or imperfections.
The following procedure to be adopted on site for pressure testing. Hdpe pipe installation video hdpe pipe backfill procedure. Electrofusion installation manual it is important to read and understand all instructions before performing an electrofusion installation. Pipe shall be produced to constant internal diameters.
As far as the transferring of heat goes, the rate of energy transfer is a lot low in the hdpe conduits and pipes. Short lengths of3mminimum up to a maximum of 10 percent ofthetotal supply may be permitted. The pipe shall be cut into lengths for testing according to the appropriate specification for the size of pipe and the tests to be performed. When groundwater levels are expected to reach above the pipe, the secondary initial backfill should be a continuation of the primary initial backfill in order to provide optimum pipe support. The ballast weight are clamped along with the pipeline as designed space. Pipe laying the inspector must check the following while pipe is being laid. Regarding guidance for laying and jointing of polyethylene pipe, including storage and handling, a reference may be made to is 7634 part 11.
The backfill load is normally well distributed over the top of the pipe. The principle of butt fusion is to heat the pipe ends to a designated temperature 200220 c under. Under each pipe type, the pipe materials that are required areindicated. Polyethylene piping systems field manual for municipal water. Trenching works and mains installation aeolia drive devonshire specification c any trench works closed before the pipe work has been hydrotested shall be at a minimum, uncovered at the joints to allow the employers representative to inspect the joints during the test. Can be used with a variety of pipe materials pvc, hdpe, steel can be used for a. Prior to unloading of pipes from trailers, all items shall be inspected for any visual transportation damages. Bedding sand for class b bedding installation shall be dry, unfrozen, fine granular. Examples 12, 14, 16 2 metal pipe corrugation dimensions. After approval for installation, pipe shall be hydrostatically tested. Aquaflow hdpe pressure pipe 2 applications 2 quality 2 characteristics of hdpe pipe 3 specifications 4 product range 4 pipe dimensions 5 temperaturepressure derating 6 design guidelines 7 codes of practice 7 flowfriction loss chart 8 chemical resistance tables 9 sangio pipe is a manufacturer and supplier of high and low density polyethylene and.
A comparison of common pipe installation methods including. Materials that have been prequalified to be joined by this fusion procedure are within the nominal melt index range of 0. However, proper pipe support must be constructed on the bottom of the pipe to distribute the load. Chapter 7 underground installation of pe piping 267 figure 1 pipe trench note. These sheets also indicate the pipe material abbreviations which are used throughout construction in plans and the proposals figure 11.