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LYON, France -- Reportlinker.com announces that a new market research report related to the worldwide plastic industry is now available to its catalog...
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... Welded Carbon Steel Pipes and Tubes, A-533-502.. 5/1/11-4/30/12. Indonessia: Polyethylene Retail Carrier Bags, A-560- 5/1/11-4/30/12. ...
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Several welding methods such as butt fusion, electrofusion, socket fusion, saddle fusion, friction welding and extrusion welding can be utilized for the installation of large diameter polyethylene pipes. The durability of welded joints depends on the maintenance and monitoring of weld quality during the welding process. Furthermore, external factors such as pipe weight, alignment, heating pressure and temperature should also be regulated to ensure weld quality and durability.
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Polyethylene pipes have become popular in the gas distribution industry due to features such as leak-tightness, strength and corrosion resistance. The latest developments in plastic pipes and related technologies are described. These include Plexco's polyethylene piping systems with permanent color stripes for easy identification, McElroy Manufacturing Inc's TracStar hydraulic fusion machine and Phillips Driscopipe's new line of pipe fittings.
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SACRAMENTO, Calif., Aug. 5 /U.S. Newswire/ -- After nearly a year defying a November 2004 court decision ordering the state to conduct environmental tests on two plastic plumbing pipes before approving them in the building code, the Schwarzenegger administration has changed course, agreeing to comply with the court's order. As recently as this week, the administration was moving forward to allow builders and developers to use two plastic pipes without conducting the court-ordered testing, holding hearings and accepting public comments at a hearing on Monday, Aug. 1.
The administration was under fire from a coalition including Communities for a Better Environment, California Professional Firefighters Association, Sierra Club, Consumer Federation of California, Center for Environmental He...
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Large Diameter Coiled Polyethylene (LDCPE) technology can be utilized by gas distributors as a cost-effective alternative to conventional gas pipe installation technology. The LDCPE technology involves the coiling of 4-inch and 6-inch high diameter and high density polyethylene plastic pipes on a dispensing trailer for the efficient and time-saving installation of gas pipes. However, commercially-available equipment is needed for straightening oval LDCPE pipes during installation.
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Horizontal directional drilling (HDD) is a cost-effective alternative for the installation of polyethylene (PE) pipes under roads, rivers or urban areas. HDD is based on a two-stage process that begins with the drilling of a pilot hole which is then enlarged to accommodate PE pipes. Overstraining and over-stressing of the pipe can be reduced by joining sticks or coiled pipes using electrofusion couplers and utilizing drilling mud to minimize friction. Furthermore, the site for HDD should be inspected to determine the soil conditions and presence of subterranean structures.
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The economic and productivity benefits of the electrofusion process convinced Northern Illinois Gas Co. (NI-Gas) to transform its all-steel piping systems to polyethylene PE pipes in 1990. According to Mike McLamore, NI-Gas' general manager of technical services and research, the utility is currently the 'largest electrofusion operation in North America.' One beneficiary of the trend towards PE piping is Central Plastics of Shawnee, OK., a vendor of electrofusion system.
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Consolidated Edison Company of New York Inc. used Phillips Driscopipe Inc.'s 12-in. Driscopipe 6800 high-density polyethylene pipes in constructing a 10,000-ft. section of its new 55,000-ft. gas distribution main in Somers, NY. The company chose the Driscopipe 6800 because of its cost-effectiveness and excellent performance and physical characteristics. The pipe, which complies with American Society for Testing and Materials' D513 standard, also offers easy installation and handling, quick heat fusing and durability.
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Cinergy Corp.'s Union Light Heat & Power Co. utilized Miller Pipeline Corp.'s XPANDIT pipe-bursting system to replace a 400-foot gas pipe line section in Covington, KY. The trenchless pipeline replacement system eliminates the need for disruptive trenching by using a pipe splitter and hydraulic expansion head replacing old pipes and installing new lines. The two-step procedure also reduced potential damage to the new pipes which are protected from cast iron fragments by high density polyethylene casing pipes.