The several small indications in the melt zone of the weld are reconcilable to surface features, and do not represent weld defects. Thickness and diameter is controlled through ultrasonic system, with strict quality control through factory equipped hightech laboratory. This guide will explain how to most efficiently weld hdpe pipe and get the most out of an investment and to have sturdy, solid fuses in the field. Elofit fittings are installed by electrofusion or butt fusion in pipelines with traditional laying or alternative techniques as pipe relining. Hdpe pipe has a smooth id and maintains its flow capability over time hazen williams c factor remains 150, even after years of use. Assessment of polyethylene welds plastics industry pipe. Lincoln electric supplies electrodes, power sources, automatic and semiautomatic wire feeders, submerged arc wire and flux, which are the industry standards for pipeline construction around the world.
Highdensity polyethylene hdpe pipe and fittings are connected to each other in the same ways through either heat fusion. For the welding and installation certified hdpe pipe welders according to gw330, dvgw standard from the skz german plastics center uae were employed. A good practice guide for the butt fusion jointing of. Hdpe pipe hdpe 100 pipes and polyethylene piping systems. In 2012, building its production facility in selimpasa organized industry zone in a 10. General information on hdpe pipe welding high density polyethylene, or hdpe, pipe is a heavyduty style piping used in physically demanding environments to transport things from water to. In the electrofusion fittings, the electrical resistors are steadily housed inside the pe layer and connected to external cable terminals. Measurement and numerical simulation article pdf available in journal of pressure vessel technology 1414 april 2019 with 620 reads how we measure reads. I know hdpe is an electrical insulator but i am unaware of the value since this question is usually asked for electrical conduit, not fiberoptical raceways. Because of its value, it is very important to weld pipe together properly to get the most value out of a length of pipe. Prepare the surfaces of the pipe and fitting in accordance with the recommended procedures 5. Internal beads may be removed from pipes after each fusion with a cutter fitted to a long pole.
From onsite fusion services to customized fabricated pipe systems, our highly trained associates are dedicated to helping you finish your projects safely and efficiently. 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. Guidelines for welding thermoplastic materials hot gas hand and hot gas extrusion welding. Specifying butt welding of polyethylene pipe systems plastics.
Hdpe and ppr pipe fusion with over 40 years of experience in polyethylene pipe fusion, ferguson is an industry leader in comprehensive fusion solutions for hdpe and ppr pipe. Sandale is a master distributor for a range of thermoplastic fittings to ensure a. Butt fusion joining procedure and qualification guide technical. Throughout this guide, the assumption is that users are welding pipes of. Plastic pipe institute as having a material designation code of pe 3408, pe3608, pe 4710, and pe 100. Notice this field handbook contains selected information that is excerpted and summarized from the ppi handbook for polyethylene pipe and performance pipe literatures. We provide technical advice, installation and welding services as well as a wide range of accessories and. High density polyethylene hdpe pipes are manufactured in compliance with isoawwa quality standards. Generally speaking, hdpe pipe is butt fused by applying heat to prepared pipe ends and then pushing the pipe ends together with a predetermined force to make a permanent butt fusion joint.
Failure analysis of high density polyethylene butt weld joint. Kolbasuk national seal company, 1255 monmouth blvd, galesburg, illinois 61401, usa abstract double track fusion welding offers more control, produces more consis tent welds and is easier to nondestructively test than other types of welding system. Hot wedge fusion welding of hdpe geomembranes sciencedirect. Welding procedure specification 7100xxxxhdpe 1 932009 922009 7100hdpe friamat na na astm d3035 astm d3035na na na na 4 0. Hdpe pipe welding machines 315 hdc polymold hdpe pipe. Geotextiles and geomembranes 9 1990 305317 hot wedge fusion welding of hdpe geomembranes gary m. Concerning welding machines fully automated cnc machines with data recording from widos were selected. The most common welding method used today is the joining of hdpe pipe and fittings by butt welding method. Intelligent welder series iws are plc based hydraulic hdpe pipe jointing machine hdpe pipe welding machine butt fusion. When power is applied through a specific welding unit, the.
Hdpe and pp materials with flame retardants and electro conductive particles carbon black are considered as inactive regarding toxicological and dermatological aspects, thus harmless. The process starts by cuffing the pipe ends straight and cleaning them carefully. Hdpe pipe, the external surface layer had a density of 952 kgm 3 whereas the bore layer had a density. The most commonly used process to connect hdpe is by heat fusion of pipe butt ends. We sell polyethylene pipe, butt fittings, socket fittings, electrofusion fittings, and fusion equipment.
Hdpe pipe is corrosion and chemical resistant hdpe pipe will not corrode, tuberculate or support biological growth. Jointing procedures for polyethylene pe pipes and fittings. It is a very simple process utilizing a properly sized butt fusion machine for the pipe size to be joined. This includes the diameter and the classification of the electrode. After heating the pipe ends are forced together under pressure and some of the material that was on the original face of the pipe end is rolled out to form the bead. The welding consumable should be selected to correctly match or overmatch the strength of the pipe. The buttwelding of akatherm hdpe operates according to the following steps. Recommended minimum training guidelines for pe pipe butt fusion joining operators for municipal and industrial projects. Weld end grooved integrifuse od controlled threaded grooved. Butt welding machines and hdpe fittings systems elbor. Besides welded joints akatherm hdpe pipes and fittings can be joined.
Hdpe pipe welding machines leading exporter of 315 hdc polymold hdpe pipe welding machine, 250 hdc polymold hdpe pipe welding machine, 200 hdc 4c hdpe pipe welding machine, 450 hdc polymold hdpe pipe welding machine, 160 hdl 2c hdpe pipe welding machine and. The butt welding method is the most common welding method currently used for joining hdpe pipes and fittings. Welding the root pass before beginning to weld the pipe, the procedure should be checked to assure that the correct electrode is being used. A heater plate is then placed in between, and the ends are heated under pressure to temperatures of 200 220c. Pe pipes networks are leakage free as a results for joining by butt fusion welding which form the network as one pipe. Pop003 references the iso 27 standard plastics pipes and fittings butt fusion. Plastic pipe welding machine hdpe pipe welding machine. Hdpe fusion procedures august, 2010 roth 6 introduction hdpe pipe or fittings are joined to each other by heat fusion. This superior make hdpe pipe welding machine is fabricated using the finest raw materials. Engineered pipe group a division of emco corporation is a wholesale distributor of high density polyethylene piping systems, water and wastewater treatment systems and related maintenance and repair services. During the heating of materials for example, during the welding process according to the dvs guidelines no harmful fumes develop. Pe pipe joining procedures 330 it is uncommon to remove internal beads, as they have little or no effect on flow, and removal is timeconsuming. Ips inches hsoc1 w5500 w6100 1 w3511 bench metric pipe od mm 1. High density polyethylene frequently asked questions.
This booklet is a guide to welding pipe with shielded metal arc welding smaw and double ending pipe using automatic welding. Less installation cost due to carrying out all pipe welding outside the trench. Butt fusion is the most important and widely used method of connection for hdpe pipes larger than 110 mm. Small pipes diameters deliver in coils which save time and installation cost. 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. Hdpe butt fusion weld inspection and imaging using evisive. Hdpe fusion services with over 40 years in the hdpe and industrial plastics business, we are a leader in the distribution and fabrication of hdpe plastic pipe, and fittings.
Our warehouse stock plus our nationwide distribution services means most hdpe projects can be supplied usually within a oneday timeframe. The principle of butt fusion is to heat the pipe ends to a designated. It is the material of choice in harsh chemical environments. Hdpe may also be joined to other materials by means of compression fittings, flanges, or other types of manufactured transition fittings for example fusion by. Hdpe supply is your number one source for hdpe fittings, hdpe pipe, and fusion equipment. Weidaline hdpe pressure pipes are highly flexible, lightweight, versatile, chemical resistant, non toxic, uv resistant, has superior flowability and high impact resistance.
The company serves its customers located all across canada. To ensure optimum quality the pipes are devised from pure pe 100 granules. This wps shall be used in conjunction with the general welding standards gws and welding fabrication procedure wfp. Hdpe may be joined by mechanical fittings, but may not be buried. In addition, pe pipe will be harder to bend andor uncoil.
For recommended guidelines when fusing in inclement weather, refer to the plastics pipe institute, ppi, technical note tn42. One of the benefits of welding hdpe plastics in smaller applications such as you might find in home plumbing. The scan above was performed using a manual rastertype pipe scanner shown in the previous slide, but. Recommended values for the heating tool butttfusion welding of pipes fusion welding of pipes and fittings from hdpe, at an ambient temperature of approximately 20 8c and f approximately 20 c and moderate air flow interim values have to be interpolated. Known for its reliable performance and durability, this hdpe pipe welding machine is offered as per the requirements of various industries. Canadian regulations when used to join uponor infra polyethylene gas pipe and fittings, uponor infra fusion joining procedures are qualified in accordance with canadian standards association regulations. High density polyethylene frequently asked questions 25701 science park drive cleveland, ohio 44122 2164643400 18003carlon 3227566. Jointing of hdpe piping smaller diameter hdpe pipes i. Engineered pipe group operates in a high growth specialized segment of the piping market with. 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. The pipe lengths shall be cut according to the approved shop drawing, and shall be joined using butt fusion welding and electrofusion welding as applicable. For hdpe pipe welding, the mirror welding machine shall be heated by electricity since electric heating plates can maintain consistent fusion. The metal end is available with a bevel for butt welding, with male or.