PVC C900 HighPressure Water PipeWaterworksProductsTough, Reliableand Perfect forMunicipal Water Systemswww.pwpipe.com
Why more specifiers choose PWPipe C900 forpotable water systems.PWPipe is the largest producer ofPVC pipe in western North Americaand our products are availablefrom distributors throughout thisgeographic region. Our water worksproducts are distributed primarily inthe states West of the Rockies.potable water, well casing, sewer,turf, agriculture, plumbing,communications, and electricalmarkets. Our manufacturingfacilities in Oregon, Washington,California, Utah, and Nebraskaassure on-time delivery.PWPipe products include PVC andpolyethylene pipe and tubing for avariety of applications servicing thePWPipe C900 high pressure waterpipe combines superior materials withthe latest manufacturing technology.2PWPipe products meet or exceedindustry standards because of ourrigorous quality-control program.PWPipe supports the PVC pipeindustry’s efforts to maintain thehighest design and manufacturingstandards. We are members of theUni-Bell PVC Pipe Association andAmerican Water Works Association(AWWA).
Corrosion ResistanceC900 is immune to nearly all typesof internal and external corrosion.Since PVC is a non-conductor, it isnot affected by electrolysis. Nor is itsusceptible to alkaline or acid soilconditions. A correctly installedPWPipe system will provide long-termservice at reduced operating costs.Water QualityExtractant water purity testsperformed by independent testlaboratories ensure that our pipemeets the requirements for waterpurity as specified by ANSI/NSFStandard 61.Superior FlowCharacteristicsAn extremely smooth inner surfacegives C900 a Hazen-Williams flowcoefficient of C 150. This means lessburden on pumps and reducedpumping costs, because there’s lessfriction between moving water andpipe walls.1. Clean all debrisfrom the bell end of thepipe. Check the gasketposition. Be sure it’scompletely seated inthe groove, with noraised areas.Exceptional Strength andDurabilityEvery piece of C900 is hydrostaticallyproof tested at four times its pressureclass.A 2.5-to-1 safety factor is appliedto the long-term pressure capacity ofthe pipe. The resulting value is furtherreduced by a surge pressure value,which also incorporates a 2.5-to-1safety factor. Burst test pressurecapability of C900 Class 150 is atleast 755 psi, with sustained pressuretest capability of 500 psi.Throughout the country, in allconditions and climates, C900 hasserved admirably in municipal watermains, fire lines, and sewage forcemains.Joint IntegrityPWPipe’s integral bell gasketedjoint meets the same strengthrequirements of the C900 pipe, aswell as the demanding test criteria ofASTM D 3139. The ability of PVC tobend without breaking allows the jointand pipe assembly to compensate forminor earth movement, whichcan cause problems in more rigid,non-PVC assemblies.CertificationC900 is periodically tested to maintainlistings from Factory Mutual System*(FM) and Underwriters Laboratories(UL). C900 also conforms toapplicable requirements of theUniform Plumbing Code .*Factory Mutual is not applicable toClass 100, DR 25 products.Basic Assembly Instructions2. Lubricate the spigotend, using only thePWPipe recommendedlubricant supplied withthe pipe.3. Place the pipes instraight alignment.Assemble to theinsertion line on thespigot—but nofarther.1.2.3.See the PWPipeinstallation guide formore detailedinstructions.3
Factors Affecting DesignHydraulicsPressure ClassC900’s pipe wall is extremelysmooth and energy-efficient. It has aHazen-Williams coefficient of C 150.PWPipe offers a choice of threepressure classes (100, 150, and 200)which can be used where operatingpressures do not exceed the pressureclass plus surge allowances. Whenyou have questions or encounterunusual circumstances, call a PWPiperepresentative.TemperaturePWPipe C900 gasket system**For operation at temperatures 80 F orhigher, multiply the pressure class bythese derating factors:TemperatureDerating Factor80 0.8890 0.75100 0.62110 0.50120 0.40140 0.22Class 100 DR 25NominalPipe Size(inches)AverageOutside Diameter(inches)Approximate*Inside Diameter(inches)MinimumWall Thickness(inches)ApproximateWeight(lbs/100 ft)ApproximateCrate 213.2012.080.52814401720/2300AverageOutside Diameter(inches)Approximate*Inside Diameter(inches)MinimumWall Thickness(inches)ApproximateWeight(lbs/100 ft)ApproximateCrate Weight(lbs)Class 150 DR 18NominalPipe 213.2011.640.73319702360/3150AverageOutside Diameter(inches)Approximate*Inside Diameter(inches)MinimumWall Thickness(inches)ApproximateWeight(lbs/100 ft)ApproximateCrate Weight(lbs)Class 200 DR 14NominalPipe 1213.2011.190.94325003000/4000*These figures allow for manufacturing tolerances. **Gasket shown is for reference purposes only.4
Product DescriptionStandard SpecificationsMaterialPVC compound meetsASTM D 1784, cell class 12454.PipeMeets AWWA C900. Class 100meets requirements of DR 25.Class 150 meets requirements ofDR 18. Class 200 meetsrequirements of DR 14.Elastromeric SealIntegral bell pipe provided withfactory-installed gaskets meetingrequirements of ASTM F 477.Gasketed Joint AssemblyMeets requirements of ASTM D 3139.InstallationAWWA C605 and PWPipe’sInstallation Guide for PVC Water Pipe.ProductC900 is suitable for use as a pressureconduit. Expansion and contractionare accommodated by a properlyassembled gasketed joint. Each bellsection meets the same pressurecapacity requirements as the pipe.Standard laying lengths are 20 feet(plus or minus 1 inch).Quality AssuranceHydrostatic Proof TestingEach standard and random lengthof C900 is tested to four times thepressure class of the pipe, for aminimum of five seconds. The integralbell is tested with the pipe.Falling Weight Impact TestAt 73 F, C900 withstands an impactenergy of 150 ft-lbs, when tested inaccordance with ASTM D 2444.JOINT INTEGRITYQuick Burst TestRandomly selected C900 samplesare tested in accordance withASTM D 1599 to withstand pressureslisted below. Class 100 has aminimum burst pressure of 535 psi;Class 150, a minimum burst pressureof 755 psi; Class 200, a minimumburst pressure of 985 psi.Pipe StiffnessC900 meets these minimum stiffnessrequirements:Pressure ClassDRPipe Stiffness(psi)100251291501836420014814HYDROSTATIC PROOF TEST5
InstallationPipe EmbedmentAll PVC pipe should be installedwith bedding that provides uniformlongitudinal support under the pipe.Use embedment material that is freeof large stones, frozen matter, orother debris. Use proper compactionprocedures to provide soil densitiesas specified by the design engineer.Table 1. Thrust Developed per 100 psi PressureAWWA C900 PVC Pressure Pipe (C.I.O.D.)Nominal Pipe Size(inches)Service ConnectionsDirect Tapping: Direct taps may bemade in C900 Class 150 and Class200 in nominal sizes 6 inch through12 inch. Corporation stops should bein sizes 5 8, 3 4, or 1 inch. When sizeslarger than 1 inch are required,tapping saddles or sleeves shouldbe used.Saddle Tapping: Saddle tapsmay be made in any size or classof C900 pipe. Maximum outlet sizerecommended for saddle taps is 2inches. For sizes larger than 2 inches,a tapping sleeve should be used.Tapping Sleeves: Tapping sleevesmay be used on all sizes and classesof C900. Sleeves are available up tosize-on-size.Caution: Saddles and sleevesshould not:Fitting 90 Elbow(lbs force)Fitting 45 Elbow(lbs force)Valves, Tees, Dead Ends(lbs ,4401011,6006,2608,1901216,4008,88011,600Table 2. Estimated Soil Bearing CapacityAllowable Bearing Pressure(psf)Soil TypeMuck, Peat, Etc.0Soft Clay500Sand1,000Sand and Gravel1,500Sand and Gravel With Clay2,000Sand and Gravel Cemented With Clay4,000Hard Pan5,000Note: Values are estimated for horizontal thrusts at depths of burial which exceed 2 feet.Note: These values should be used only for estimating purposes. Values for design should bedetermined by an engineer familiar with site soil conditions. Distort the pipe when tightened Have lugs that dig into the pipewhen the bolts are tightened Have a clamping arrangementnot fully contoured to the outsidediameter of the pipeFor more information on tapping,see Uni-Bell’s tapping video andpublications Uni-B-8 and Uni-Pub-8.LongitudinalBending6NominalPipe Size(inches)MinimumBending Radius(feet)Axial deflection at the pipe joints is notrecommended, However, it is possibleto curve C900 to allow for slightchanges in direction.410061458190Bending to these minimum radiiwill not jeopardize C900’s designcapability. See PWPipe’s TechnicalBulletin “Longitudinal Bending of PVCPipe” for more details.1023512275
Thrust RestraintAdequate thrust restraint isnecessary for all gasketed jointsystems. The “push on” features ofour joints provide many installationadvantages, but without adequatethrust restraint they can become“push off” problems. The large thrustforces present in water-distributionsystems (see Table 1) require thrustrestraints designed to handle test andpeak operating pressures.Concrete Thrust BlocksIf concrete thrust blocks are used,the size and type of thrust blockingmust be based on the load-bearingcapacity of the soil, pressure in thepipe, and diameter of the pipe. Table2 provides conservative estimates ofload-bearing values for various soiltypes. When soil conditions are notknown, samples should be tested todetermine soil properties.Mechanical RestraintsIf mechanical thrust restraint devices areused, they should be a type designedfor use with PVC pipe. The devicesshould meet the test requirements ofUni-Bell’s Specification Uni-B-13 “JointRestraint Devices for Use with PVCPipe.” Design manuals and computersoftware are available from the restraintmanufacturers.FIGURE 2: Direction change, elbowFIGURE 3: Change line size, reducerFor typical thrust blocking andmechanical thrust restraint examples,see Figures 1 through 6.THRUST BLOCKSFIGURE 1: Through line connection, teeMECHANICAL THRUST RESTRAINT DEVICESFIGURE 4: Through line connection,cross used as teeFIGURE 5: Direction change, elbowFIGURE 6: Direction change, teeused as elbow7
Testing of Installed SystemsPlace sufficient backfill beforepipe filling and field testing. Underconditions requiring immediate backfilling of trenches, test after backfillingbut prior to placement of permanentsurface. Testing short lengths of pipefirst will verify proper installation andjoint assembly. If concrete thrustblocks are required, allow sufficientcuring before testing.Separate tests for pressure andleakage may be performed. Ifseparate tests are done, the pressuretest should be done first. See Table 4.ProcedureWhile the line is under pressure,check for leaks in all exposed pipe,fittings, valves, and hydrants. Repairor replace all defective elements.Repeat the test until all visible leaksstop and the allowable leakagerequirements are met, per Table 5.For detailed pressure-testingrequirements, consult your engineeror the PWPipe installation guide.Table 3. Volume of Water Required for TestingNominal Pipe Size(inches)Volume(U.S. gal/100 ft)470615382591040512573Table 4. System Test MethodsProcedurePressureTest DurationSimultaneous pressureand leakage tests150% of working pressure at point of test,but not less than 125% of normal workingpressure at highest elevation*2 hrSeparate pressure test150% of working pressure at point of test,but not less than 125% of normal workingpressure at highest elevation*1 hrSeparate leakage test150% of working pressure of segment tested*2 hrSource: Underground Installation of PVC Pressure Pipe and Fittings for Water, AWWA C605.*Under no circumstances should test pressures exceed 305 psi for DR 14, 235 psi for DR 18, and165 psi for DR 25 C900 PVC pipe.WARNING: Do not use PVC pipe forpressurized air systems. Injury ordeath may result due to the catastrophic nature of pipe failure shouldfailure occur. Rapid expansion ofcompressed air could propel shardsof plastic throughout the area.WARNING: Expel all air from thepipeline during filling and again before testing for pressure or leaks.Automatic air-release valves are recommended. Compressed entrappedair can greatly amplify surges orpumping pressures. Also, compressed air might leak through ajoint that will not leak water.Table 5. Allowable Leakage per 50 JointsU.S. Gallons per HourNominal Pipe Size(inches)50100Average Test Pressure 0.680.830.961.071.170.570.810.991.151.281.40P.O. Box 10049, Eugene, OR 97440 (800) 347-0200 (541) 343-0200 FAX (541) 686-9247 www.pwpipe.comPWPipe and the PWPipe logotype are registered trademarks of PWPipe Litho in USA on Recycled paper Reorder No. MKT-F-730—Revised April 2000