1、Designation: D2846/D2846M 17b An American National StandardStandard Specification forChlorinated Poly(Vinyl Chloride) (CPVC) Plastic Hot- andCold-Water Distribution Systems1This standard is issued under the fixed designation D2846/D2846M; the number immediately following the designation indicates th
2、eyear 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 () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S
3、. Department of Defense.1. Scope*1.1 This specification covers requirements, test methods,assembly, and methods of marking for chlorinated poly(vinylchloride) plastic hot- and cold-water distribution system com-ponents made in one standard dimension ratio and intended forwater service up to and incl
4、uding 180 F (82 C). Thesecomponents comprise pipe and tubing, socket-type fittings,street fittings, plastic-to-metal transition fittings, solventcements, and adhesives. Requirements and methods of test areincluded for materials, workmanship, dimensions andtolerances, hydrostatic sustained pressure s
5、trength, and ther-mocycling resistance. The components covered by this speci-fication are intended for use in residential and commercial, hotand cold, potable water distribution systems.1.2 The products covered by this specification are intendedfor use with the distribution of pressurized liquids on
6、ly, whichare chemically 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
7、fortheir specific 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,an
8、d appendixes which 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 SI units or inch-pound unitsare to be regarded separately as standard. The values stated ineac
9、h system may not be exact equivalents; therefore, eachsystem shall be used independently of the other. Combiningvalues from the two systems may result in non-conformancewith the standard.NOTE 2Suggested hydrostatic design stresses and hydrostatic pressureratings for pipe, tubing, and fittings are li
10、sted in Appendix X1. Design andinstallation considerations are discussed in Appendix X2. An optionalperformance qualification and an in-plant quality control program arerecommended in Appendix X3.1.5 The following safety hazards caveat pertains only to thetest method portion, Sections 9 and 10, of t
11、his 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,health, and environmental practices and determine the appli-cability of regulatory limitations
12、prior to use.1.6 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization Technic
13、alBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2D1598 Test Method for Time-to-Failure of Plastic PipeUnder Constant Internal PressureD1599 Test Method for Resistance to Short-Time HydraulicPressure of Plastic Pipe, Tubing, and FittingsD1784 Specification for Rigid Poly
14、(Vinyl Chloride) (PVC)Compounds and Chlorinated Poly(Vinyl Chloride)(CPVC) CompoundsD2122 Test Method for Determining Dimensions of Ther-moplastic Pipe and FittingsD2855 Practice for the Two-Step (Primer and Solvent Ce-ment) Method of Joining Poly (Vinyl Chloride) (PVC) orChlorinated Poly (Vinyl Chl
15、oride) (CPVC) Pipe andPiping Components with Tapered SocketsD2444 Test Method for Determination of the Impact Resis-tance of Thermoplastic Pipe and Fittings by Means of aTup (Falling Weight)1This specification is under the jurisdiction of ASTM Committee F17 on PlasticPiping Systems and is the direct
16、 responsibility of Subcommittee F17.61 on Water.Current edition approved Dec. 1, 2017. Published February 2018. Originallyapproved in 1969. Last previous edition approved in 2017 as D2846/D2846M 17a.DOI: 10.1520/D2846_D2846M-17B.2For referenced ASTM standards, visit the ASTM website, www.astm.org, o
17、rcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, W
18、est Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World
19、Trade Organization Technical Barriers to Trade (TBT) Committee.1D2837 Test Method for Obtaining Hydrostatic Design Basisfor Thermoplastic Pipe Materials or Pressure Design Basisfor Thermoplastic Pipe ProductsF402 Practice for Safe Handling of Solvent Cements,Primers, and Cleaners Used for Joining Th
20、ermoplasticPipe and FittingsF412 Terminology Relating to Plastic Piping SystemsF493 Specification for Solvent Cements for ChlorinatedPoly(Vinyl Chloride) (CPVC) Plastic Pipe and FittingsF645 Guide for Selection, Design, and Installation of Ther-moplastic Water- Pressure Piping SystemsF1498 Specifica
21、tion for Taper Pipe Threads 60 for Thermo-plastic Pipe and FittingsF1960 Specification for Cold Expansion Fittings with PEXReinforcing Rings for Use with Cross-linked Polyethylene(PEX) TubingF1961 Specification for Metal Mechanical Cold Flare Com-pression Fittings with Disc Spring for Crosslinked Po
22、ly-ethylene (PEX) Tubing (Withdrawn 2018)3F1807 Specification for Metal Insert Fittings Utilizing aCopper Crimp Ring for SDR9 Cross-linked Polyethylene(PEX) Tubing and SDR9 Polyethylene of Raised Tem-perature (PE-RT) TubingF2080 Specification for Cold-Expansion Fittings with MetalCompression-Sleeves
23、 for Crosslinked Polyethylene (PEX)Pipe and SDR9 Polyethylene of Raised Temperature(PE-RT) PipeF2098 Specification for Stainless Steel Clamps for SecuringSDR9 Cross-linked Polyethylene (PEX) Tubing to MetalInsert and Plastic Insert FittingsF2159 Specification for Plastic Insert Fittings Utilizing aC
24、opper Crimp Ring for SDR9 Cross-linked Polyethylene(PEX) Tubing and SDR9 Polyethylene of Raised Tem-perature (PE-RT) TubingF2434 Specification for Metal Insert Fittings Utilizing aCopper Crimp Ring for SDR9 Cross-linked Polyethylene(PEX) Tubing and SDR9 Cross-linked Polyethylene/Aluminum/Cross-linke
25、d Polyethylene (PEX-AL-PEX)TubingF2735 Specification for Plastic Insert Fittings For SDR9Cross-linked Polyethylene (PEX) and Polyethylene ofRaised Temperature (PE-RT) Tubing2.2 ANSI Standards:ANSI Z17.1-1958 Preferred Numbers42.3 Federal Standard:Fed. Std. No. 123 Marking for Shipments (Civil Agenci
26、es)52.4 Military Standard:MIL-STD-129 Marking for Shipment and Storage52.5 NSF Standards:Standard No. 14 for Plastic Piping Components and RelatedMaterials6Standard No. 61 for Drinking Water Systems ComponentsHealth Effects62.6 Underwriter Laboratory Standards:7UL 1738 Standard for Venting Systems f
27、or Gas-BurningAppliances, Categories II, III, and IV3. Terminology3.1 Definitions:3.1.1 GeneralDefinitions used in this specification are inaccordance with Terminology F412, unless otherwise speci-fied. The abbreviation for chlorinated poly(vinyl chloride) isCPVC. Plastic tubing denotes a particular
28、 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, stress, and internal pressur
29、e for pipeand tubing:2S/P 5 R 2 1 (1)or2 S/P 5 D0/t ! 2 1 (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 standard dimension rat
30、io (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 shall by definition be
31、 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 designation code shall co
32、nsist 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 73 F 23 C in units of 100 psi 0.69MPa.4. Classification4.1 Pipe, Tubing, and Fittin
33、gsThis 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 180 F 82 C andby nominal pipe or tubing diameters from14 in. 9.5 mmthrough 2 in. 50 mm.3The last approved version of th
34、is historical standard is referenced onwww.astm.org.4Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.5Available from DLA Document Services, Building 4/D, 700 Robbins Ave.,Philadelphia, PA 19111-5094, http:/quicksearch.dla.
35、mil.6Available from NSF International, P.O. Box 130140, 789 N. Dixboro Rd., AnnArbor, MI 48113-0140, http:/www.nsf.org.7Available from Underwriters Laboratories (UL), UL Headquarters 333 Pfing-sten Road Northbrook, IL 60062, http:/.D2846/D2846M 17b24.2 Transition FittingsThis specification classifie
36、s transi-tion fittings intended for use up to and including 180 F 82 Cas CPVC-180 F on the basis of resistance to failure bythermocycling.4.3 Solvent Cements and AdhesivesThis specificationclassifies solvent cements and adhesives meeting the require-ments contained herein as CPVC Solvent Cement or C
37、PVCAdhesive.NOTE 3This specification does not include requirements for pipefittings intended to be used to vent combustion gases. UL 1738 is astandard that does not include specific testing and marking requirementsfor flue gas venting productss, including CPVC.5. Materials5.1 Basic Materials Descrip
38、tionChlorinated poly(vinylchloride) plastics used to make pipe, tubing, and fittingsmeeting the requirements of this specification are categorizedby two criteria; namely, basic short-term properties, andlong-term hydrostatic strength. Sections 5.1.1 and 5.1.2 respec-tively define these categories.5.
39、1.1 Basic Short-Term PropertiesThis specification cov-ers CPVC 41 pipe, tubing, and fittings made from plasticmaterials meeting the mechanical strength, heat resistance,flammability, and chemical resistance requirements for CPVC23447 in Specification D1784.NOTE 4CPVC 23447 was formerly designated as
40、 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 StrengthThis specificationcovers CPVC 41 pipe, tubing, and fittings which are furtherdefined by hydrostatic design stress as CPVC 4120. Pipe andtubing are so d
41、efined on the basis of long-term hydrostaticstrength tests and are made from compounds having anestablished 180 F 82 C hydrostatic design stress of 500 psi3.45 MPa or greater in accordance with Test Method D2837.Fittings are so defined by hydrostatic sustained pressure testson fitting assemblies, re
42、quired by this specification (see 6.2),based on the hydrostatic strength of the corresponding pipe ortubing.NOTE 5No hydrostatic design stress, as such, exists for fittings untilsuch time as long-term hydrostatic strength test methods for fittings aredeveloped.5.2 The PEX fitting ends of CPVC to PEX
43、 transition fittingsshall meet the material and dimensional requirements of thecorresponding PEX fitting standard.5.3 The PERT fitting ends of CPVC to PERT transitionfittings shall meet the material and dimensional requirementsof the corresponding PERT fitting standard.5.4 Rework MaterialClean rewor
44、k plastic material gener-ated from the manufacturers own plastic tube or fittingproduction may be used by the same manufacturer provided thepipe, tubing, or fittings meet all the requirements of thisspecification.6. Requirements for Pipe, Tubing and Fittings6.1 Dimensions and Tolerances:6.1.1 Genera
45、l:6.1.1.1 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 socketbottom, or 0.128 in. 3.25 mm for the fitting body, shall bearbitrarily increased to these values.6.1.1.2 Interference FitThe dia
46、meters 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 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 f
47、ittings apply to the average measured diameter.NOTE 6Example: In the 1-in. 25 mm tubing size, if the measuredaverage tubing diameter was 1.123 in. 28.52 mm, then the 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
48、.1 Outside Diameter and Wall ThicknessThe outsidediameters and wall thicknesses for pipe and tubing shall meetthe requirements for dimension and tolerance given in Table 1when measured in accordance with Test Method D2122.TABLE 1 Outside Diameters, Wall Thicknesses, and Tolerances for CPVC 41, SDR 1
49、1, Plastic Pipe and TubingAOutside Diameter, in. mm Wall Thickness, in. mmBNominal Tube or Pipe Size Average Tolerance on AverageMax Out-of-RoundCSDR 11Min Tolerance14 Tubing 0.375 9.5 0.003 0.08 0.003 0.08 0.055 1.40D+0.020 +0.5138 Tube 10 0.500 12.7 0.003 0.08 0.003 0.08 0.060 1.52D+0.020 +0.5112 Tube 15 0.625 15.9 0.003 0.08 0.004 0.10 0.060 1.52D+0.020 +0.5134 Tube 20 0.875 22.2 0.003 0.08 0.005 0.13 0.080 2.03 +0.020 +0.511 Tube
