High-Density Polyethylene Pipe Systems

1 1 HDPEHigh- density PolyethylenePipe SystemsMeeting the challenges of the 21st century2 Meeting the challenges of the21st centuryPiping made from Polyethylene is a costeffective solution for a broad range of pipingproblems in municipal, industrial, marine,mining, landfill, duct and agriculturalapplications. It has been tested and proveneffective for above ground, sur face, buried,sliplined, floating, and sub-surface Polyethylene pipe (HDPE) cancarry potable water, wastewater, slurries,chemicals, hazardeous wastes, and compressedgases. In fact, Polyethylene pipe has a long anddistinguished history of service to the gas, oil,mining and other industries. It has the lowestrepair frequency per mile of pipe per yearcompared with all other pressure pipe materialsused for urban gas is strong, extremely tough andvery durable.

2 Whether you re looking for longservice, trouble-free installation, fle xibility,resistance to chemicals or a myriad of otherfeatures, High-Density Polyethylene pipe willmeet all your Polyethylenepipe systemsHDPE3 Lower life cycle costsmCorrosion resistance. Does not r ust, rotor tight. Heat-fused joints create ahomogenous, monolithic system. Thefusion joint is stronger than the optimum flow rates. Does nottuberculate, has a high resistance to scale orbiological water hammer to withstand surge strain allowance. Virtually eliminatesbreakage due to freezing cost savings are achieved bylower instance of no exfiltration or infiltration, potablewater losses and groundwater nuisancetreatment costs encountered in traditionalpiping Systems are installation costsmMaterial of choice for trenchlesstechnology.

3 Used in directional boring,plowing, river crossings, pipe bursting fittings due to pipe bending radius of 20 to 25 timesoutside diameter of equipment required for handlingand installation than with metallic the need for thrust fused joints are fully weight and longer lengths allow forsignificant savings in labor and PIPESAVES BOTH TIME AND MONEY4mLEAK pipe is normally joined byheat fusion. Butt, socket, sidewall fusion andelectrofusion create a joint that is as strong asthe pipe itself, and is virtually leak free. Thisunique joining method produces significantcost reductions compared to other , ABRASION, ANDCHEMICAL piping s performance inmining, dredging and similar applicationsproves it will outwear many more costlypiping materials when conveying a varietyof abrasive slurries.

4 HDPE has excellentcorrosion resistance and is virtually does not need expensive maintenance orcathodic protection. It offers better overallresistance to corrosive acids, bases and saltsthan most piping materials. In addition, Polyethylene is unaffected by bacteria, fungiand the most aggressive naturallyoccurring soils. It has good resistance tomany organic substances, such as solventsand FLOW Polyethylene is smoother thansteel, cast iron, ductile iron, or concrete, asmaller PE pipe can carry an equivalentvolumetric flow rate at the same has less drag and a lower tendency forturbulence at high flow. Its superior chemicalresistance and non-stick surface combineto almost eliminate scaling and pitting andpreserve the excellent hydraulic characteristicsthroughout the pipe service AND pipe is produced in straightlengths or in coils.

5 Made from materialsabout one-eighth the density of steel, it islightweight and does not require the useof heavy lifting equipment for reduces the need for fittings, is e xcellentin shifting soils and performs well inearthquake-prone areas. HDPE resiststhe effects of freezing and allows bendingwithout the need for an excessive number offittings. Since HDPE is not a brittle material,it can be installed with bends over uneventerrain easily in continuous lengths withoutadditional welds or the following features ofHDPE pipe :5mDUCTILITY AND pipe and fittings areinherently tough, resilient and resistantto damage caused by external loads,vibrations, and from pressure surges suchas water hammer. Even in cold weatherpolyethylene pipe is tolerant to handlingand UNDER AWWA,NSF, ASTM, AGA, EPA, DNR, DOT, API,FM, CSA AND OTHER NATIONALLYRECOGNIZED pipe is listed and approvedby the standards or committees of theagencies listed IN DIAMETERS FROM INCH TO 63 pipe is available in a widerange of diameters and wall thickness,with flanges, elbows, tees, wyes, andvalves, providing a total system pipe is also available in Iron PipeSize (IPS), Ductile pipe Size (DIPS) aswell as metric sizes.

6 Plastic pipe Institutemembers can provide pipe , fittings andother COLOR CODING BYAPPLICATION. Polyethylene pipe isavailable with color coding by applicationas developed by the utility location andcoordination council of the AmericanPublic Works Association (APWA).6 pipe bursting project savestime and moneyAs part of its sewer rehab project, the city ofBaytown, Texas, elected to use 36-inch HDPE pipe to replace 36-inch Reinforced ConcretePipe (RCP) sewer lines. To burst more than3700 feet of pipe in residential areas, thecontractor used both static and pneumaticbursting Systems . The pipe bursting methodwas recommended over three other proceduresto avoid the major impact of bypass pumpingand reduced flow capacity Polyethylene piperescues Colorado highwayWhen a section of corrugated metal pipeculvert rusted and washed out, a busy Coloradohighway was partially closed down to Colorado Department of Transportationacted quickly to line the culvert withpolyethylene pipe .

7 Its light weight anddurability were perfect for the project s highelevation and isolated location. The line pipewas inserted from the uphill side of the culvertand pulled into position, then the joints wereassembled. Filling the annular void spacebetween the existing Corrugated Metal pipe (CMP) and the liner pipe with grout waschallenging, but successful. The liner anddirect bury portions are in place, with flowrestored and traffic running normally on thehighway above restores city drinkingwaterA deteriorating cast iron water main inHenryetta, Oklahoma was leaking 300,000gallons of water per day and threatening toshut off the city s water supply. Complicatingfactors included water temperature thatchanged 30 degrees in short time periodsand steep slopes in the location of the the number of pipe joints along theslope and accommodating the temperaturedifferential, along with elevation problems,convinced city officials to select HDPE Iron pipe Size (IPS) DR-11 waterpipe was installed along the 1,400-foot sectionof line extending over the steep slope to theflatland below.

8 The HDPE pipe solved theelevation and water temperature problems,and allowed for rapid installation that avoidedshutting off the city s main water supply foran extended period of safe water to a ruralcommunityThe cost of constructing long lengths ofdistribution piping deprives many r uralresidents of safe drinking water. CarlsbadSprings in Ontario, Canada studied a steady -flow water supply technology and chaintrencher installations method, discoveringthey could save 66% over conventional watersupply installations. Although high -densitypolyethylene pipe was not in the standardsfor watermain materials, an assessment of thematerial and appropriate jointing methodsdetermined HDPE pipe was flexible, resistant tocorrosion and smooth-walled. Carlsbad Springsinstalled approximately ( ) ofHDPE watermain ranging from 75mm to200mm (3 inch to 8 inch) diameter.

9 UsingHDPE and chain trenching excavation,watermain installation costs were as low as$15 per foot for 6-inch diameter directional drillingsolves overflow problems atSan Rafael CanalA nightmare situation faced the San Rafael,California Sanitation District. Few challengingenvironmental demands can compare withpreventing tons of raw sewage from dumpinginto San Francisco Bay. A pipeline constructedin the 40s to transfer sewage and groundwaterwas rusting and corroding, and had insidesedimentary buildup that decreased its capacitysignificantly. Without replacing the entiresewage system, the best solution was to installtwo new parallel Polyethylene pipelines 15 feetbelow the bottom of the canal. Laying the pipeinvolved complicated directional drilling at avertical curve with a series of tight maneuvers,with a compound curve around privateproperty, and without disturbing the nearbywetlands.

10 The project utilized 16-inch SDR- 11and 26-inch SDR-11 HDPE pipe that met thecriteria for pullback, ability to bend and towithstand the stress of horizontal directionaldrilling. Excavation and environmental impactwere kept to a minimum, and the project wascompleted in four weeks, one-third the timerequired for the average trench-diggingoperation, at a total cost of $ its founding in 1950, PPI has been thevoice for its members who are involved inmanufacturing and distributing polyethylenepipe Systems . Members share an interest ineducating industry about the benefits of HDPE pipe , and broadening market opportunities touse Polyethylene piping Systems for water andgas distribution, sewer and wastewater, oil andgas production, industrial and mining uses,power and communication duct, and ir includemManufacturers of Polyethylene pipe ,fittings and valvesmManufacturers of Polyethylene pipingmaterialsmManufacturers of equipment andmachinery used for fabricating, joining orinstalling Polyethylene piping systemsFor additional information, visit the PPIweb site at or contactour headquarters in Irving, TX at469/499-1044, fax 469 PIPEINSTITUTE (PPI)