1、Designation: D 2846/D 2846M 06An American National StandardStandard Specification forChlorinated Poly(Vinyl Chloride) (CPVC) Plastic Hot- andCold-Water Distribution Systems1This standard is issued under the fixed designation D 2846/D 2846M; the number immediately following the designation indicates
2、theyear of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of lastreapproval. A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the
3、Department of Defense.1. Scope1.1 This specification covers requirements, test methods,and methods of marking for chlorinated poly(vinyl chloride)plastic hot- and cold-water distribution system componentsmade in one standard dimension ratio and intended for waterservice up to and including 180F (82C
4、). These componentscomprise pipe and tubing, socket-type fittings, street fittings,plastic-to-metal transition fittings, solvent cements, and adhe-sives. Requirements and methods of test are included formaterials, workmanship, dimensions and tolerances, hydro-static sustained pressure strength, and
5、thermocycling resis-tance. The components covered by this specification areintended for use in residential and commercial, hot and cold,potable water distribution systems.1.2 The products covered by this specification are intendedfor use with the distribution of pressurized liquids only, whichare ch
6、emically compatible with the piping materials. Due toinherent hazards associated with testing components and sys-tems with compressed air or other compressed gases somemanufacturers do not allow pneumatic testing of their products.Consult with specific product/component manufacturers fortheir specif
7、ic testing procedures prior to pneumatic testing.NOTE 1Pressurized (compressed) air or other compressed gasescontain large amounts of stored energy which present serious safteyhazards should a system fail for any reason.1.3 The text of this specification references notes, footnotes,and appendixes wh
8、ich provide explanatory material. Thesenotes and footnotes (excluding those in tables and figures) shallnot be considered as requirements of the specification.1.4 The values stated in either inch-pound or SI units are tobe regarded separately as standard. Within the text, SI units areshown in bracke
9、ts. The values stated in each system are notexact equivalents; therefore, each system shall be used inde-pendently of the other. Combining values from the two systemsmay result in nonconformance with the specification.NOTE 2Suggested hydrostatic design stresses and hydrostatic pres-sure ratings for
10、pipe, tubing, and fittings are listed in Appendix X1.Design, assembly, and installation considerations are discussed in Appen-dix X2. An optional performance qualification and an in-plant qualitycontrol program are recommended in Appendix X3.1.5 The following safety hazards caveat pertains only to t
11、hetest method portion, Sections 9 and 10, of this specification:This standard does not purport to address all of the safetyconcerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety andhealth practices and determine the applicabili
12、ty of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D 1598 Test Method for Time-to-Failure of Plastic PipeUnder Constant Internal PressureD 1599 Test Method for Resistance to Short-Time Hydrau-lic Pressure of Plastic Pipe, Tubing, and FittingsD 1784 Specification for
13、Rigid Poly(Vinyl Chloride) (PVC)Compounds and Chlorinated Poly(Vinyl Chloride)(CPVC) CompoundsD 1898 Practice for Sampling of Plastics3D 2122 Test Method for Determining Dimensions of Ther-moplastic Pipe and FittingsD 2444 Test Method for Determination of the Impact Re-sistance of Thermoplastic Pipe
14、 and Fittings by Means of aTup (Falling Weight)D 2837 Test Method for Obtaining Hydrostatic DesignBasis for Thermoplastic Pipe Materials or Pressure DesignBasis for Thermoplastic Pipe ProductsF 402 Practice for Safe Handling of Solvent Cements,Primers, and Cleaners Used for Joining Thermoplastic Pip
15、eand FittingsF 412 Terminology Relating to Plastic Piping SystemsF 493 Specification for Solvent Cements for ChlorinatedPoly(Vinyl Chloride) (CPVC) Plastic Pipe and Fittings1This specification is under the jurisdiction of ASTM Committee F17 on PlasticPiping Systems and is the direct responsibility o
16、f Subcommittee F17.61 on Water.Current edition approved March 15, 2006. Published March 2006. Originallyapproved in 1969. Last previous edition approved in 1999 as D 2846 99e1.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. Fo
17、r Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Withdrawn.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.F 1498 Specification for Taper Pipe Threads 60 for Ther-mop
18、lastic Pipe and Fittings2.2 ANSI Standards:ANSI Z17.1-1958 Preferred Numbers42.3 Federal Standard:Fed. Std. No. 123 Marking for Shipments (Civil Agencies)52.4 Military Standard:MIL-STD-129 Marking for Shipment and Storage52.5 NSF Standards:Standard No. 14 for Plastic Piping Components and RelatedMat
19、erials6Standard No. 61 for Drinking Water SystemsComponentsHealth Effects63. Terminology3.1 Definitions:3.1.1 GeneralDefinitions used in this specification are inaccordance with Terminology F 412, unless otherwise speci-fied. The abbreviation for chlorinated poly(vinyl chlo-ride) isCPVC. Plastic tub
20、ing denotes a particular diameter schedule ofplastic pipe in which the outside diameter of the tubing is equalto the nominal size plus18 in. (3.18 mm).3.1.2 relation between standard dimension ratio, stress, andinternal pressurethe following expression is used to relatestandard dimension ratio, stre
21、ss, and internal pressure for pipeand tubing:2S/P 5 R 2 1 (1)or2 S/P 5D0/t !21 (2)where:S = stress in circumferential or hoop direction, psi(MPa),P = internal pressure, psi (MPa),D0= average outside diameter, in. (mm),t = minimum wall thickness, in. (mm), andR = standard dimension ratio, SDR3.1.3 st
22、andard dimension ratio (SDR)a selected series ofnumbers in which the average outside diameter to minimumwall thickness dimension ratios are constant for all sizes ofpipe and tubing in each standard dimension ratio, and whichare the ANSI Z17.1 Preferred Number Series 10 modified by+1. SDR fittings sh
23、all by definition be equivalent in minimumsocket wall thickness to the minimum wall thickness of thecorresponding SDR and size of pipe or tubing, and theminimum body wall thickness shall be 125 % of that value.3.1.4 standard material designation codethe chlorinatedpoly(vinyl chloride) material desig
24、nation code shall consist ofthe abbreviation CPVC followed by two digits indicating theASTM type and grade in Arabic numerals. Where necessary, athird and fourth digit shall be added to indicate the hydrostaticdesign stress for water at 73F 23C in units of 100 psi 0.69MPa.4. Classification4.1 Pipe,
25、Tubing, and FittingsThis specification classifiesCPVC 4120 pipe, tubing, and fittings by a single standarddimension ratio which shall be SDR 11, by a maximumcontinuous use temperature which shall be 180F 82C andby nominal pipe or tubing diameters from14 in. 9.5 mmthrough 2 in. 50 mm.4.2 Plastic-to-M
26、etal Transition FittingsThis specificationclassifies CPVC plastic-to-metal transition fittings intended foruse up to and including 180F 82C as CPVC-180F on thebasis of resistance to failure by thermocycling.4.3 Solvent Cements and Adhesives This specificationclassifies solvent cements and adhesives
27、meeting the require-ments contained herein as CPVC Solvent Cement or CPVCAdhesive.5. Materials5.1 Basic Materials DescriptionChlorinated poly(vinylchloride) plastics used to make pipe, tubing, and fittingsmeeting the requirements of this specification are categorizedby two criteria; namely, basic sh
28、ort-term properties, andlong-term hydrostatic strength. Sections 5.1.1 and 5.1.2 respec-tively define these categories.5.1.1 Basic Short-Term PropertiesThis specification cov-ers CPVC 41 pipe, tubing, and fittings made from plasticmaterials meeting the mechanical strength, heat resistance,flammabili
29、ty, and chemical resistance requirements for CPVC23447 in Specification D 1784.NOTE 3CPVC 23447 was formerly designated as CPVC Type IVGrade 1, and is herein designated as CPVC 41. This is also used inmarking pipe, tubing, or fittings.5.1.2 Long-Term Hydrostatic Strength This specificationcovers CPV
30、C 41 pipe, tubing, and fittings which are furtherdefined by hydrostatic design stress as CPVC 4120. Pipe andtubing are so defined on the basis of long-term hydrostaticstrength tests and are made from compounds having anestablished 180F 82C hydrostatic design stress of 500 psi3.45 MPa or greater in a
31、ccordance with Test Method D 2837.Fittings are so defined by hydrostatic sustained pressure testson fitting assemblies, required by this specification (see 6.2),based on the hydrostatic strength of the corresponding pipe ortubing.NOTE 4No hydrostatic design stress, as such, exists for fittings until
32、such time as long-term hydrostatic strength test methods for fittings aredeveloped.5.2 Rework MaterialClean rework material generatedfrom the manufacturers own tube or fitting production may beused by the same manufacturer provided the pipe, tubing, orfittings meet all the requirements of this speci
33、fication.6. Requirements for Pipe, Tubing and Fittings6.1 Dimensions and Tolerances:6.1.1 General:4Available from American National Standards Institute, 11 West 42nd Street,13th Floor, New York, NY 10036.5Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700Robbins Ave., Philad
34、elphia, PA 19111-5094, Attn: NPODS.6Available from the National Sanitation Foundation, PO Box 1468, Ann Arbor,MI 48106.D 2846/D 2846M 0626.1.1.1 Wall MinimumsTable 1 and Table 2 show wallthickness minimums. Calculated SDR 11 fitting wall thick-nesses that fall below 0.102 in. 2.59 mm for the fitting
35、 socketbottom, or 0.128 in. 3.25 mm for the fitting body, shall bearbitrarily increased to these values.6.1.1.2 Interference FitThe diameters and tolerances inTable 1 and Table 2 provide for socket-type joints having aninterference fit based on the major diameter of pipe and tubinghaving a degree of
36、 out-of-roundness.6.1.1.3 Out-of-RoundnessThe maximum out-of-roundness requirements shown in Table 1 and Table 2 for pipe,tubing, and fittings apply to the average measured diameter.NOTE 5Example: In the 1-in. 25 mm tubing size, if the measuredaverage tubing diameter was 1.123 in. 28.52 mm, then the
37、 extrememeasured diameters due to ovality could be 1.129 in. 28.68 mmmaximum and 1.117 in. 28.37 mm minimum.6.1.2 Pipe and Tubing:6.1.2.1 Outside Diameter and Wall ThicknessThe outsidediameters and wall thicknesses for pipe and tubing shall meetthe requirements for dimension and tolerance given in T
38、able 1when measured in accordance with Test Method D 2122.6.1.2.2 Wall Thickness RangeThe wall thickness range forpipe and tubing shall be within 12 % when measured inaccordance with Test Method D 2122.6.1.2.3 FlatteningThere shall be no evidence of split-ting, cracking, or breaking when the pipe is
39、 tested in accor-dance with 9.2.6.1.2.4 LengthPipe and tubing supplied in straight lengthsshall have a tolerance on any specified length of +12 ,0in.+12.5, 0 mm.6.1.3 Socket-Type Fittings:6.1.3.1 DimensionsFitting sockets, inside diameters (wa-terways), wall thicknesses, laying lengths, and reducing
40、 bush-ing minimums shall meet the requirements for dimension andtolerance given in Table 2, Table 3, and Table 4 when measuredin accordance with Test Method D 2122. The spigot ends ofstreet fittings shall meet the outside diameter and minimumwall requirements of Table 1.6.1.3.2 AlignmentThe maximum
41、angular variation of anysocket opening shall not exceed12 off the true centerlineaxis.6.1.4 Plastic-to-Metal Transition Fittings:6.1.4.1 Basic DimensionsPlastic parts of plastic-to-metaltransition fittings shall meet the dimensional requirements ofTable 1 and Table 2, where applicable, with the foll
42、owingexceptions. Such parts shall be exempted from the require-ments for inside diameter (waterway) and wall thicknesstolerance.6.1.4.2 ThreadsFor all fittings having taper pipe threads,threads shall conform to Specification F 1498 and be gaged inaccordance with 9.5.6.2 Hydrostatic Sustained Pressur
43、e:6.2.1 GeneralPipe, tubing, and fittings (tested as assem-blies) shall meet the minimum hydrostatic sustained pressurerequirements of both test conditions shown in Table 5 whentested in accordance with 9.2.6.2.2 Pipe and Tubing QualityTest Condition B shall betermed the primary sustained pressure t
44、est for pipe and tubingand shall be used for quality control (see Appendix X3). TestCondition A shall be termed the secondary sustained pressuretest for pipe and tubing and shall be used for periodicperformance qualification. Failure to pass either test is causefor rejection.6.2.3 Fitting QualityTes
45、t Condition A shall be termed theprimary sustained pressure test for fittings and shall be used forquality control (see Appendix X3). Test Condition B shall betermed the secondary sustained pressure test for fittings andshall be used for periodic performance qualification. Failure topass either test
46、 is cause for rejection.TABLE 1 Outside Diameters, Wall Thicknesses, and Tolerances for CPVC 41, SDR 11, Plastic Pipe and TubingAOutside Diameter, in. mm Wall Thickness, in. mmBNominal Tube or Pipe Size Average Tolerance on Average Max Out-of-RoundCSDR 11Min Tolerance14 Tubing 0.375 9.5 60.003 60.08
47、 60.003 60.08 0.055 1.40D+0.020 +0.5138 Tube 10 0.500 12.7 60.003 60.08 60.003 60.08 0.060 1.52D+0.020 +0.5112 Tube 15 0.625 15.9 60.003 60.08 60.004 60.10 0.060 1.52D+0.020 +0.5134 Tube 20 0.875 22.2 60.003 60.08 60.005 60.13 0.080 2.03 +0.020 +0.511 Tube 25 1.125 28.6 60.003 60.08 60.006 60.15 0.1
48、02 2.59 +0.020 +0.51114 Tube 32 1.375 34.9 60.003 60.08 60.007 60.18 0.125 3.18 +0.020 +0.51112 Tube 40 1.625 41.3 60.004 60.10 60.008 60.20 0.148 3.76 +0.020 +0.512 Tube 50 2.125 54.0 60.004 60.10 60.010 60.25 0.193 4.90 +0.023 +0.58112 Pipe 40 1.900 48.6 +0.006, 0.002 +0.15, 0.05 60.008 60.20 0.17
49、3 4.39 +0.021 +0.532 Pipe 50 2.375 60.7 +0.006, 0.002 +0.15, 0.05 60.010 60.25 0.216 5.49 +0.026 +0.66AAll dimensions are in inches and millimetres. (1 in. = 25.4 mm.)BThe minimum is the lowest wall thickness at any cross section. The maximum permitted wall thickness, at any cross section, is the minimum wall thicknessplusthestated tolerance. All wall tolerances are on th
