A pipes resistance to abrasion is a particul arly important factor in branch lines, sewer stacks and ground pipes. Concrete pipes can be sealed using a cement mortar wash. China hdpe pipe supplier, hdpe pipe fittings, ppr pipe manufacturers suppliers beijing zlrc environmental protection equipment co. But welding of hdpe pipes equipment required for installation of. Scope of work the purpose of this method statement is to describe the measures and. The strength of a pipe system shall be considered a combination of the pipe itself and the backfill envelope. Chapter 7 underground installation of pe piping 267 figure 1 pipe trench note. Installation method statement of hdpe piping method. This section includes construction of highdensity polyethylene pipe for storm drainage culverts including appurtenances normally installed as a part of these systems. Hdpe pipe hdpe 100 pipes and polyethylene piping systems. The most common welding method used today is the joining of hdpe pipe and fittings by butt welding method. Purpose the purpose is intended to assist the client, customer installer in understanding the. 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.
Flexible pipes can deflect up to their allowable deflection limit without damage. This technical note presents design criteria and prevailing engineering methods that are recommended by the plastic pipe institute for aboveground installation of polyethylene pe. Install the correct adapter insert for the size of pipe diameter to be used and. The principle of butt fusion is to heat the pipe ends to a designated temperature 200220 c under. After approval for installation, pipe shall be hydrostatically tested. If entry of the pipe or fitting spigot into an electrofusion coupling is still restricted after the oxidised layer has been removed, the pipe can be scraped down to the permissible. 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. If the wireless sensors cannot be installed then carry out installation of hard. Introduction both corrugated high density polyethylene hdpe and polypropylene pp pipes are available for a variety of applications. Visible scratch marks on the pipe surface around where the puddle flange will be fitted must be removed. Electrofusion installation procedure manual it is important to read and understand all instructions before attempting a fusion. Submit schedule of expected work for approval by the engineer including means and methods of installation. This document describes the installation method proposed by lmr for the installation of four 4 hdpe pipes. Introduction this method statement covers the procedure involved in handling and installation of underground grpfrp piping in trench.
A comparison of common pipe installation methods including. It is the intent of this specification to define the acceptable methods and materials for installing sanitary sewer and water mains by the horizontal directional drilling method and the requirements for high density polyethylene hdpe pipe. When installing hdpe pipes with an od of 225mm and smaller, it can be done by means of lifting by hands into position on ground level. Compact to at least 85 percent standard proctor density as defined in astm d698. Method statement for installation of hdpe pipes written by. All pipe sizes above 250mm outside diameter must been install by means of a mobile crane or telehandler. Heat expansion heat expansion of hdpe needs to be considered in the design and installation. Provide method statement for each key activity, as requested by employers. Download free printable method statement samples in pdf, word and excel formats. Allowable design pressure the exposure of above ground pipe to sunlight can result in.
The primary focus of this chapter is the design and installation of underwater lines by the floatandsink method that is made. This chilled water piping installation method of statement is prepared in order to outline the activities and the methods used for the installation of chilled water pipes and accessories carry out all project site installation activities in accordance with the contract details and in full compliance to the contract specifications and documents. Method statement 6 free templates in pdf, word, excel download. D638, standard test method for tensile properties of plastic. It is sometimes called alkathene or polythene when used for hdpe pipes.
Allowable design pressure the exposure of above ground pipe to sunlight can result in extremely high outside surface. 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. Method statement 6 free templates in pdf, word, excel. Persons responsible for the joining of polyethylene pipe by fusion methods must qualify according to the requirement of the title 49 code of federal regulations, section 192. Most pe pipes can withstand large amounts of deflection without damage but for practical purposes pe pipes are. Permanent field installations should be done only by operators who have been properly trained and certified as qualified. The hdpe pipes can be positioned directly into the welding machine. Chapter 10 marine installations plastics pipe institute. For a distance along the pipe of a minimum of 2 pipe diameters,the trench must be a minimum of 3 pipe diameters in width and with a depth of one pipe diameter. Chapter 7 underground installation of pe piping 266 flexible pipe installation theory pe piping is considered flexible pipe. Material shall be stored in a covered and dry space. When hdpe is subjected to a constant static load, it deforms immediately to a strain predicted by the.
Method statement generic unless otherwise stated 1. Installation and construction for two, or more, parallel pipes in a common trench, properly compacted backfill is required between pipes. Recommended handling method for pipe diameter hdpe approx. Advantages often lowest cost per linear foot especially in nonpaved areas provides a variety of excavation and trenching options high level of control over elevationsslopes allows a direct visual inspection of pipe. A pipe s resistance to abrasion is a particul arly important factor in branch lines, sewer stacks and ground pipes. Butt fusion is the most important and widely used method of connection for hdpe pipes larger than 110 mm. Refer to the chemical compatibility guide or contact geberit for assistance on the best joining method. Project hkz hdd sea defence project method statement ms.
The following installation manual was written to give general introduction of the methods and tools used with plassons electrofusion fittings. All technical data, methods and techniques contained herein are given as broad and general information and should not be relied upon for specific applications. Minimum spacing between pipes may be satisfied by the following see table 62. This specification covers the material pipe and fittings, joining methods and general installation practice for dual contained high density polyethylene pipe hdpe piping systems, including carrier. This document refers only to the fusing aspect of the installation process for detailed information on the proper laying of pipe, see astm d2321 and d2774 4 regulations for gas pipe joining 41 us regulations when used to join uponor infra polyethylene gas pipe and fittings, uponor. Method statement for installation of pvc upvc drainage piping. This method statement is applicable for all drainage pipe works underground, above ground, horizontal and vertical drainage piping for any kind of the project as specified in project specification. Both corrugated high density polyethylene hdpe and polypropylene pp pipes are available for a variety of applications. Jan 17, 20 method of statement for drainage pipe installation inside the toilet,pvc drainage pipe, how to lay drain pipe, how to install drains. May 09, 2018 ductwork is an mep work, if you are a quality engineer working in mep contracting, this method statement is for you. Hdpe pipes, hdpe mdpe pipes and fittings, cosmoplast. The following method statement has been developed to provide a safe system of work and must be adhered to at all times, any significant deviation from this system must first be authorised by your manager or safety representative.
Ensure that both pipes are straight and true, with no bending. Feb 12, 2014 2445034 installation method statement of hdpe piping pdf free download as text file. Depending on the type of backfill, the compaction equipment and joining methods, these dimensions may need to be. Proper pipe preparation for electrofusion fittings for a pipe surface to be properly prepared for electrofusion the outer layer or skin of the pipe should be removed to expose a clean, virgin pipe material.
Chapter 7 underground installation of pe piping 268 secondary initial backfill the basic function of the material in this zone is to distribute overhead loads and to isolate the pipe from any adverse effects of the placement of the final backfill. Hdpe high density polyethylene pipe, mdpe mid density polyethylene pipe, acp asbestos cement pipe. Pipe peel depth requirements pipe dn peel depth mm see note. Installation instructions 1ads drainage handbook installation. Sewer method statement method statement for construction of. Pdf method statement for excavation and backfilling for. Method statement for excavation and backfilling for underground services. Ministry of works and engineering page 2 of 29 may 2016. Material received at site shall be inspected and stored according to manufacturer recommendations.
The aim of the method statement is to set out the procedures, precautions to observe during unloading, storage, shifting of pipes to desired locations, installation. Installation of sanitary pipeline general notes for sewer a. Push the joint home until the previously made pen marks meet the socket. Final backfill as the final backfill is not an embedment material, its nature and.
Highdensity polyethylene hdpe or polyethylene highdensity pehd is a thermoplastic polymer produced from the monomer ethylene. Method statement for installation of upvc pipes underground drainage pipework quantity. An existing 4 diameter hdpe pipe with a flanged isolating valve is the start point. Method statement for installation of ductworks with accessories. Complete structural backfill operation by working from side to side of the pipe. Prepare the pipe for installation by cleaning with a cloth. Electrofusion welding method statement water management solutions. High density polyethylene geomembrane manufactured by gse lining.
This specification covers the material pipe and fittings, joining methods and general installation practice for high density polyethylene pipe hdpe piping systems for water and wastewater utility use as indicated on the drawings. Chapter 7 underground installation of pe piping plastics pipe. Oct 02, 20 intelligent welder series iws are plc based hydraulic hdpe pipe jointing machine hdpe pipe welding machine butt fusion welding machine which comes with completely well equipped superior quality. C health and safety plan including a traffic management plan for the whole of the works. Polyethylene pe pipe provides good joint integrity, toughness, flexibility, and low weight to make its use practical for many above ground applications. The purpose of this methodology is to provide a systematic control and direction for the activity for the installation of piping at site. Construction may include surface preparation, trench excavation, shoring. Can be used with a variety of pipe materials pvc, hdpe, steel can be used for a variety of types of pipe installation.
When a pipe passes through a wall or is encased in concrete,the following installation method must be used. 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 riyadh, ksa. Customer another limited site any town house, any town, a123 4zx contact names andy person customer order no. The joining method is connect the ends of pipes to be welded by using butt welding machine and both ends are pushed toward each other by pressing under a certain temperature. Installation of ads pipe is in most respects very much like that of any quality pipe installation.
Ductwork is a huge part of the work in a construction of a highrise building project even in a lowmedium rise. Creep refers to the response of pe, over time, to a constant static load. The puddle flange will need to be stretched over the pipe and pushed into position. Proper construction maximizes the drainage capabilities designed into the pipe by maintaining alignment and loadcarrying ability. So, here is a method statement for installation of ductworks with accessories.
While pvc is the most common nonmetal plumbing pipe used in the u. Scope of works the task involves the installation of hdpe rising main and includes the following works. The principle of butt fusion is to heat the pipe ends to a designated. Minimum trench width will depend on site conditions and embedment materials. These additional conditions have a focus on new installation methods, including six major applications.
Butt fusion joining procedure and, engineered pipe group hdpe pipe installation method statement pdf,note. This method statement provides the expectation to execute work in safe, ecofriendly manner and in compliance to the adco hse and quality requirements. This can be achieved by using one of several types of approved scraping tools. These applications include gravity flow storm and sanitary sewer, low head pressure applications as well as many others as deemed appropriate by the design engineer. With a high strengthtodensity ratio, hdpe is used in the production of plastic bottles, corrosionresistant piping, geomembranes and plastic lumber.
Inadequate installation of safety fencing and signage inappropriate use and. Standard test methods for laboratory compaction characteristics of soil. This document describes the installation method proposed by lmr for the installation of four 4 hdpe pipes dn800. Method statement installation of upvc drainage final free download as word doc. Hdpe pipe meets aashto verifying pipe pipe storage out of the way. Pvc pipes shall have a try axial strength not less than 2. Should you have any questions or need installation training, please contact. Horizontal auger boring, pipe ramming, pipe jacking, horizontal directional. Method statement fahu fire alarm system fire suppression system installation installation method statement iso 9001 itp mcc mdb method method of statement method statement method statement for installation method statement template of qcp risk assessment. Compact structural bedding outside the middle third of the pipe.
The potential for wildfire along the path of any above ground pipe installation needs to be. Consider putting a board or ground sheet under the opposite end of the pipe, to simplify the next joint. This section includes construction of highdensity polyethylene pipe for storm drainage. Method statement installation of upvc drainage final. When lifting any pipe always use two slings to keep pipe. D1056, specification for flexible cellular materials sponge and.
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