performance pipe fusion procedures

This bulletin has been developed to assist those responsible for the butt fusion joining of Performance Pipe products in municipal, industrial, gas and energy applications. Integrity Fusion Products, Inc. c. Approved Equal . This applied force joins the melted surfaces resulting in a permanent, monolithic fusion joint. PolyPipe® fusion procedures require specific tools and equipment for the fusion type and for the sizes of pipe and fittings to be joined. Do not twist Pipe or Fitting. For these reasons, PE pipes have been proven reliable, durable, and have been in use since the 1960’s. TWI has developed procedures using mechanical testing to develop flaw acceptance criteria for butt fusion joints in PE pipes. It contains detailed information about HDPE pipe and specifications, HDPE molded and fabricated fittings, McElroy fusion machines, mechanical connections, accessories and much more - all in an easy-to-read indexed format. A compact design for tight indoor work spaces, the 250 fuses pipe and fittings from 63mm - 250mm (2"- 10”). Both fused and parent pipe reference specimens are tested and a short-term tensile welding factor, ƒ s, is then determined, defined as: Short-term and long-term mechanical testing to evaluate the effect of flaws in butt fusion joints in polyethylene pipes. These systems often carry and store products including dry gas, wet gas, crude oil with entrained/emulsified water, and processed liquids. This The two surfaces are then brought together under controlled pressure for a specific cooling time and a homogeneous fusion joint is formed. Disinfection of Newly Constructed Polyethylene Water Mains, (2001), TR-34. Proven to be a reliable joining system, an electrofusion joint is heated internally, either by a conductor at the interface of the joint or by a conductive polymer. Summarises the major national, international and UK industry standards which are used for butt fusion, electrofusion and socket fusion welding of polyethylene pipe. 2. It also covers the weld procedure for activities such as surface preparation, clamping, alignment and cooling procedures. NACE RP0490 Standard Recommended Practice for Holiday Detection of Fusion- Bonded Epoxy External Coating of … For PP-R pipe up to 24” and HDPE pipe up to 65,” we can draft and fuse a pipe system based on your required specifications. 2) Adjust set-up, equipment, operation, and fusion procedure. 6.3.2. The force applied during the fusion passes through the center of the pipe, producing an equal distribution of force around the diameter of the pipe which results in an even, continuous bead formation and quality joint. Electrofusion Similarly different grades and SDR's of pipe can be connected using electrofusion, again only under controlled conditions. properties; pipe fusion procedures; fusion integrity analyses and testing procedures development; pipe performance requirements; volumetric examination methods and determination of acceptable material flaws applicable to U.S. and international standards and procedures. For the handling of the test beds, only trained personnel is employed. DriscoPlex 6400 series PE3608 and PE4710 HDPE pipes are the piping materials of choice for service in oil and gas gathering, coal-bed methane, shale methane, and landfill methane recovery, brine supply lines, oilfield water and many other energy /industri; Leak free, when fusion welded; Excellent flow characteristics; UV (ultraviolet) protected PolyPipe® fusion procedures require specific tools and equipment for the fusion type and for the sizes of pipe and fittings to be joined. Pipeline Welding Procedures. The performance of aligned and controlled misaligned butt welds in 63 and 90mm polyethylene pipe systems was determined under fatigue loading conditions designed to induce brittle failure. Butt fusion is a thermofusion process. Butt fusion procedures are consistent with PPI TR-33 Generic Butt Fusion Procedures. INCLEMENT WEATHER. Figure 5: The pipe end and couplings were not properly Coupling #2 • There were no alignment/stab depth marks visible on the pipe causing the pipe to be severely miss-stabbed (Figure 6). Select and install the heating and saddle fusion tool according to the pipe and fitting base size. 15. Remove foreign matter or dirt from inside of the pipe and fittings before fit up. 5.0 Other Acceptable Fusion Procedures It must be recognized that there are many other different procedures and fusion parameters used throughout the world that have been proven to make effective, reliable joints. 4.1 Testing Personnel. Hold. EFW pipe vs ERW pipe. All pipe produced under this standard must utilize pressure rated materials, but may be used in pressurized, nonpressure and negative pressure applications. Performance Pipe Socket Fusion Training - YouTube. Butt Fusion Figure 5.1 A Standard Butt Fusion Joint The most widely used method for joining individual lengths of polyethylene pipe is by heat fusion of the pipe butt ends as illustrated in Figure 5.1. INTERNATIONAL STANDARDS PIPA recommends the butt fusion procedures and parameters as specified in ISO 21307, Plastics pipes and Fittings – Butt Fusion Jointing Procedures for Polyethylene (PE) Pipes and Fittings Used in Construction of Gas and Water Distributions Systems. PPI TR-41 Generic Saddle Fusion Joining Procedure for Polyethylene Gas Piping. Prepare and Clean. BS EN 1418: 1998 (R2003) Welding personnel. The testing is done on the test bay of the manufacturer. Prepare a sample joint. As in any pipeline application, joint quality greatly affects overall operational safety of the system. 1. Pressure testing of plastic pipes, especially PE, is complicated because the pipe material creeps under pressure therefore the pressure reduces without any leakage so results can be misleading. Performance Pipe — a division of Chevron Phillips Chemical Company LP — is the largest producer of polyethylene piping products in North America, with more than 40 years of proven performance, quality and innovation in natural gas, industrial, municipal, mining, oilfield and utility applications. Butt fusion procedures are consistent with PPI TR-33 Generic Butt Fusion Procedures. 4.2 Place and Time Of Testing. Standard Specifications High … This is the best location for literature on Teel’s products and services. Removing of test specimens for combination of 2G & 5G NPS 6 (DN 150) or larges pipe should be used to make up the test specimens. ... Fitting selection is important to the performance of a piping … Performance Pipe Website (Resource) Socket Fusion Procedures (Video - 09:16 minutes) Butt Fusion Procedures (Video - 08:54 minutes) Reading: Fusion Procedures & Qualifications Guide (Optional) (Download .pdf) Fusion Procedures … A fitting with implanted metal coils is placed around two ends of pipes to be joined, and current is passed through the coils. Our facilities are ISO certified and our skilled technicians are trained on the latest pipe fusion techniques. With capital efficiency and productivity as your top priorities, our completions solutions encompass the latest technical innovations, digital capabilities, engineered technologies, and equipment reliability to provide leading-edge performance. Lower emissions with grid-powered fracturing. Pipes on either side of the joint should be at least 6” (150 mm) or 15 times the wall thickness in length. The TracStar® 28 model fuses 2” IPS (63mm) minimum to 8” DIPS (225mm) maximum pipe. Resistive heating of the coils melts small amounts of the pipe and fitting, and upon solidification, a joint is formed.

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