SpiroliteC 2006 Industrial Pipe Fittings, LLC Rev. …

1 1999 Chevron Chemical Co., LLCRev. 11/98 bulletin No. 910 ASTM F-894 HIGH-DENSITY SPIROLITEPOLYETHYLENE PIPEPRODUCT DATAS pirolite The leader in largediameter plastic the leader in plastic pipe technology, manufactures thermoplastic pipe in diameters through 120 pipe , because of the unique process through which it is manufactured, is the only high density poly-Sethylene system in the United States that truly offers a cost competitive alternative to traditional piping materials forgravity sanitary s*ewer and Industrial waste applications. Lightweight Spirolite offers both the ease of a bell andspigot joint design that reduces installation time and the corrosion resistance to assure long-term, trouble-freeservice. Spirolite pipe also meets the requirements of ASTM RANGEU nlike many conventionally extruded thermoplastic pipes,where inside diameter is decreased as the wall is madethicker, all Spirolite pipe is manufactured to constant in-ternal diameters. Standard Spirolite sizes are listed be-low.

2 Additional sizes through 144" diameter are availableon Diameter Inches*182124273033364248546066728496120 *Other sizes available upon WALL CONCEPT: MAXIMUM EFFICIENCYS pirolite is manufactured through an exclusive process by whicha profile extrusion is continuously wound upon a mandrel. Thisinnovative wall construction takes advantage of a geometrically ef-ficient hollow rib design to minimize pipe weight while maximizingstiffness to weight ratio. Each size of Spirolite pipe is available inseveral standard classes, allowing the engineer to choose the pro-file/class which is the most economical for his specific Spirolite profile wall concept has been proven by more than20 years of successful field experience bulletin is intended to be used as a guide to support the designer in the use of Spirolite pipe . It is not intended to be usedas installation instructions, and should not be used in place of a professional design engineer. The information contained hereincannot be guaranteed because the conditions of use are beyond our control.

3 The user of this bulletin assumes all risk associ-ated with its is manufactured from a high density, high molecular weight polyethylene especially designed for engineered pipingapplications. This material has been used successfully to make pipe for over 30 years. The resin selected for Spirolite offers the optimum combination of strength, stiffness, toughness and long-term reliability (see Figure 1). The material isclassified by ASTM D-3350 Standard Specification for Polyethylene Plastics pipe and Fittings Materials as having a minimumcell classification of 335444C. Other grades of HDPE and materials may also be selected based on application AND CORROSION RESISTANCEWEATHERABILITYSome grades of polyethylene may crack or craze when understress and in contact with certain chemical substances. Thisphenomenon is known as environmental stress pipe is made from stress-crack resistant materialswhich, when tested under the most severe ESCR test condi-tions (ASTM D-1693, Condition C), produce a result that farexceeds the ASTM D-3350 requirements for the highest-ratedpipe outstanding chemical and corrosion resistance ofSpirolite pipe makes it ideal for sanitary sewer and a widevariety of Industrial waste disposal applications.

4 It will notrust or decay or support bacteriological growth and is not sub-ject to electrolytic or galvanic corrosion. Neither hydrogensulfide nor the resulting sulfuric acid commonly found insanitary sewers has any effect on the physical proper-ties of Spirolite pipe . A comprehensive chemical resis-tance brochure is available on Spirolite pipe has been primarily designed for bur-ied applications, it is weather resistant-it may be stored orused for years in direct exposure to the natural elements. Thepipe compound contains a minimum of 2% carbon black, asspecified by ASTM D-3350 for weather resistant (Class C)grades. This additive screens out the sun s potentially dam-aging ultraviolet rays and preserves the pipe s Meets ASTM F-894 pipe MATERIALFIGURE 1: CELL CLASSIFICATION DESCRIPTIONS PER ASTM D-3350**Base resin. pipe values may vary. HDB established when compounded with the proper color concentrate. Cell classificationsare minimum cell values. Resins with higher cell values may be CLASSIFICATION FORSPIROLITE BASE RESIN PROPERTY CELL CLASSIFICATIONPE 3408 LIMITS3 Density per ASTM D-1505, - Melt Index per ASTM D-1238, grn/10 min < - Flexural Modulus per ASTM D-790, psi 110,000 - 160,0004 Tensile Strength per ASTM D-638, psi 3000-35004 Environmental Stress Crack Resistance per ASTMD-1693, Failure% = hours F20 > 6004 Hydrostatic Design Basis per ASTM D-2387, psi 1600C Color & Ultraviolet Stabilizer > 2% Carbon BlackTEMPERATURES pirolite material has been selected to satisfy the broadestrange of commonly encountered operating temperatures.

5 Itsworking temperature range depends on specific circum-stances, but generally extends from about -400F to 1400F. Aswith all thermoplastics, an increase in temperature tends toreduce stiffness and strength but improves ductility. Withdecreasing temperature, the opposite effects occur. Whenworking outside the ambient temperature range, these effectsshould be taken into consideration by the characteristic of polyethylene is its relatively high coeffi-cient of thermal expansion/contraction. However, for buriedapplications, exposure to variable temperatures is generallynot a design concern because of the restraining action of thesurrounding soil and the inherent stress absorbing capabili-ties of the pipe LENGTHSLIGHTWEIGHTS pirolite pipe is produced in standard 20' laying lengths upto 72" * This allows the contractor to operate at maximumefficiency by reducing the number of joints that have to beassembled. The benefits can be significant. Many contrac-tors have found that they can install 20%-30% more Spirolite pipe per day than a similar size pipe made from traditionalmaterials.

6 The dramatic difference in the number of joints isalso important when you consider the cost of jobsite shown in Figure 2 below, the number of Spirolite jointswhich must be laid and tested, and remain infiltration free forthe life of the piping system, is substantially lower than that ofother pipes supplied in shorter request, Spirolite may be produced in shorter lengths forprojects where severe ground conditions may limit the amountof trench that can be held unit weight of Spirolite pipe is considerably less thanthat of traditional pipe products. The savings resulting fromthe use of a lightweight piping system can be costs are reduced. Installation equipment may belighter and thus less expensive to operate. Jobsite handlingefficiency is also increased. Many contractors have found itpossible to drastically reduce, or in some cases, even elimi-nate the need for expensive lifting equipment to lower the pipeinto the comparison of various pipe materials and their respectiveweights is shown in Figure of JointsProject 20 13 8 4 Lenght (Ft.)

7 Lgth. Lgth. Lgth. 250 385 625 12501000 500 770 1250 250015000 750 1154 1875 3750 FIGURE 2: FEWER JOINTS PER INSTALLED LENGTH*Over 72 is produced in 19 laying 3: TYPICAL WEIGHT OF 36 INCH SEWER PIPE565170 30425 ReinforcedConcreteExtraStrenghtClayDucti le IronClass 50 Spirolite Class63 WEIGHT IN POUNDS PER FOOT OF PIPETOUGH AND DURABLEMANHOLES AND FITTINGSJOININGS pirolite pipe may be joined by two alternative techniques,each employing the ease of bell and spigot assembly, Theseare rubber gasket and thermal welding. together, they allowthe specifier the option of selecting that method it which isbest suited to the complete corrosion- resistant systems, Spirolite man-holes are available. These manholes can be fabricated topermit connection to Spirolite pipe , as well as traditional pip-ing materials. Spirolite pipe can also be connected to tradi-tional types of manholes. See Spirolite Technical BulletinTB-101 for available connection options. A full range of fit-tings is available for use with Spirolite pipe .

8 All standardfittings are designed with bell and spigot end configurationsfor easy assembly to Spirolite pipe in the field. In addition tostandard fittings such as elbows, wyes, tees, flanges, andlateral taps, Spirolite also has the capability to custom fabri-cate those one-of-a-kind pieces that may be required for spe-cial job is rugged. It withstands stresses that would nor-mally damage conventional piping products. Its resistance tocracking and breakage through customary jobsite handlingeliminates the need to order extra Spirolite gasket is designed to meet ASTM F-477. Thiseasily assembled joint is perfect for sanitary sewer and mostindustrial waste applications and is available in 18 through84" diameter Spirolite . The gasket will not fishmouth orroll out of its grove when homed. Because of its unique pro-file shape, the gasket provides dual sealing: a compressionseal against exfiltration and a combination of compressionand hydraulic seal against infiltration.

9 This provides doubleprotection. The hydraulic seal is energized by external pres-sure, thus, it becomes tighten with increasing infiltration pres-sure. This unique design is superior to an 0-ring seal whichprovides only a compression seal. The Spirolite joint passesstandard air or hydrosatic field testing with ease and is de-signed with ASTM D-3212 Joints for Drain and Sewer PlasticPlpes Using Flexible Elastomeric Seals. Infiltration ratesnot to exceed 50 gallons/inch of diameter/mile/day maybe specified for the Spirolite gasket joint. Recommendedassembly procedures for the gasket joint are given in SpiroliteTechnical bulletin Spirolite thermal welded joint is used primarily of appli-cations where contact with exotic effluents is anticipated. Us-ing a portable field extruder, a bead of polyethylene is ex-truded and fused to the juncture of the bell and spigot to forma homogenous joint which is absolutely leak proof. The weldbead may be placed on the inside or outside of the pipe GASKET JOINTTHERMAL WELDED JOINTGASKET WELD BEAD WELD BEAD CENTERING RING Assembling a Spirolite JointBeing made of high-density polyehtylene,all Spirolite products result s in excellenthydraulics, superior to those of conven-tional materials.

10 Spirolite products mini-mize flow disturbance due to sedimenta-tion an slime build-up by providing asmooth, non-polar and anti-adhesive , Spirolite pipe offers the potentialfor use of smaller diameter and/or reducedslopes to accomplish given flow require-ments. The Manning coefficient ofSpirolite pipe for clean water at ambienttemperatures is = flow ( )n = Manning roughness coefficientA = flow area of pipe ( )R = hydraulic radius (ft.) = D/4where D = pipe inside diameter (ft.)S = Slope (feet/foot)EQUATION =l AR2/3 l S1/2 Spirolite FLOW CHARACTERISTICST able 1: SPIROLITE pipe CLASS SELECTION FOR BURIAL ABOVE THE GROUND WATER LEVELPIPE SELECTIONBURIAL ABOVE GROUND WATER LEVELS pirolite pipe is manufactured in four standard ring stiffnessclasses. In preparing a specification, the designer selects aclass of pipe appropriate for the application. The followingtables may be used to assist the designer in making that se-lection.