1、Designation: D3139 98 (Reapproved 2011) An American National StandardStandard Specification forJoints for Plastic Pressure Pipes Using Flexible ElastomericSeals1This standard is issued under the fixed designation D3139; the number immediately following the designation indicates the year oforiginal a
2、doption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S. Department of Def
3、ense.1. Scope1.1 This specification covers the types of joints required forplastic pipe pressure systems with a wall thickness equal to orgreater than that of SDR 64 and intended for use in supply anddistribution lines for water, using flexible elastomeric seals.This specification covers the test re
4、quirements, test method,and materials. The test methods described are not intended tobe routine quality control tests, but are to evaluate theperformance characteristics of the joint.1.2 The text of this specification references notes, footnotes,and appendixes which provide explanatory material. The
5、senotes and footnotes (excluding those in tables and figures) shallnot be considered as requirements of the specification.1.3 The following safety hazards caveat pertains to the testmethod portion, Section 6, of this specification: This standarddoes not purport to address all of the safety concerns,
6、 if any,associated with its use. It is the responsibility of the user of thisstandard to establish appropriate safety and health practicesand determine the applicability of regulatory limitations priorto use.2. Referenced Documents2.1 ASTM Standards:2D2837 Test Method for Obtaining Hydrostatic Desig
7、n Basisfor Thermoplastic Pipe Materials or Pressure Design Basisfor Thermoplastic Pipe ProductsF477 Specification for Elastomeric Seals (Gaskets) for Join-ing Plastic Pipe2.2 AWWA Standard:AWWA C651 Standard for Disinfecting Water Mains32.3 NSF Standard:ANSI/NSF Standard No. 61 for Drinking Water Sy
8、stemComponents-Health Effects43. Terminology3.1 Definitions:3.1.1 This specification covers two types of mechanicaljoints based on effecting water tightness through compressionof an elastomeric seal or ring:3.1.2 mechanical jointa joint in which a positive seal isachieved when a gasket is compressed
9、 by means of a mechani-cal device.3.1.3 push-on-jointa joint in which a continuous elasto-meric ring gasket is compressed into an annular space formedby the pipe or fitting socket and the spigot end of the pipe, andforms a positive seal after being assembled. Details of the jointdesign and assembly
10、shall be in accordance with the manufac-turers instructions.4. Materials and Manufacture4.1 The materials used in elastomeric seals shall meet therequirements of Specification F477.4.2 LubricantThe lubricant shall be nontoxic and shallhave no deteriorating effects on the gasket and pipe materials.It
11、 shall not impart taste or odor to water in a pipe that has beenflushed in accordance with AWWA C651. When used in apotable water system, the lubricant shall meet the requirementsofANSI/NSF Standard No. 61. The lubricant container shall belabeled with the manufacturers trademark or the pipe manu-fac
12、turers name.5. Performance Requirements5.1 The joint shall be designed to provide a permanent sealand shall be qualified in accordance with Section 8.5.1.1 All surfaces of the joint upon or against which thegasket may bear shall be free of imperfections that couldadversely affect the performance of
13、the joint.1This specification is under the jurisdiction of ASTM Committee F17 on PlasticPiping Systems and is the direct responsibility of Subcommittee F17.20 on Joining.Current edition approved Feb. 1, 2011. Published November 2011. Originallyapproved in 1973. Last previous edition approved in 2005
14、 as D3139 98(2005).DOI: 10.1520/D3139-98R11.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from A
15、merican Water Works Association (AWWA), 6666 W. QuincyAve., Denver, CO 80235, http:/www.awwa.org.4Available from NSF International, P.O. Box 130140, 789 N. Dixboro Rd., AnnArbor, MI 48113-0140, http:/www.nsf.org.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA
16、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 Trade Organization Te
17、chnical Barriers to Trade (TBT) Committee.15.2 Pressure RatingDesigns not meeting the requirementsof 6.2 shall be tested to verify that the hydrostatic design basiscategory for joint assemblies shall not be lower than thehydrostatic design basis category for pipe when tested underthe same procedure.
18、 The hydrostatic design basis for this jointdesign shall be established on a representative size at aminimuim test level of 10 points and 2000 h in accordance withTest Method D2837, except that the ends shall be restrained.Test pressure levels for establishing hydrostatic design basisshall be calcul
19、ated on pipe minimum wall dimensions.5.2.1 Joint designs shall require retesting under this sectiononly if the joint design is changed or if the pipe compound isaltered in any manner that produces a lower hydrostatic designbasis category when compared with the compound used in theprevious validation
20、 testing of the joint design.5.3 Mechanical JointThe mechanical joint shall provide apressure rating equal to or greater than that of the correspond-ing pipe.5.3.1 Internal StiffenerThe pipe spigot shall have a wallthickness sufficient to withstand, without deformation orcollapse, the compressive fo
21、rce exerted when the fitting istightened. If the wall is not sufficient to withstand the com-pressive force, then a rigid tubular internal stiffener shall beused in conjunction with compressive-type mechanical jointfittings. A stiffener specified by the manufacturer for thispurpose shall be used.5.4
22、 Joint DeflectionThe joint shall provide a seal when thepipe spigot is deflected axially in the socket to the maximumunstressed limit permitted by dimensional clearance betweenthe spigot and bell.6. Dimensions, Mass, and Permissible Variations6.1 Joint Dimensions and TolerancesThe dimensions ofthe b
23、ell, socket, and plain end shall be in accordance with themanufacturers standard design dimensions of the joint.6.2 Push-On JointThe minimum wall thickness of the bellat any point between the ring groove (annular gasket space)and the pipe barrel, shall conform to the dimension ratiorequirements for
24、the pipe barrel. The minimum wall thicknessin the sealing portion of the ring groove and bell entry sectionsshall equal or exceed the minimum wall thickness requirementsof the pipe barrel (see Fig. 1 or Fig. 2).6.3 Gasket DimensionsGasket dimensions shall be inaccordance with the manufacturers stand
25、ard design dimen-sions and tolerances. The gasket shall be of such size and shapeas to provide an adequate compressive force against the spigotand socket after assembly to effect a positive seal under allcombinations of permitted joint and gasket tolerances. Thegasket shall be the sole element depen
26、ded upon to make thejoint flexible and water tight. The gasket shall be a continuouselastomeric ring.7. Workmanship, Finish, and Appearance7.1 The manufacturer of these joints shall produce jointsmeeting the requirements of this specification. Components ofthe joints shall be homogenous throughout a
27、nd free fromvisible cracks, holes, foreign inclusions, or injurious defects.The components of the joints shall be as uniform as commer-cially practicable in color, opacity, density, and other physicalproperties.8. Test Methods8.1 The assembled joints shall pass the following laboratoryqualifying tes
28、ts. (For referee testing, standard laboratory con-ditions of 73F and 50 % relative humidity will apply.)8.1.1 Internal Pressure TestingLaboratory hydrostaticpressure tests on joints shall be made on an assembly of twosections of pipe properly connected in accordance with thejoint design and deflecte
29、d to the limit defined in 5.4.Nocoatings, fillings, or packings, other than lubricants recom-mended in 4.2, shall be placed prior to water tightness tests.After the pipe sections are fitted together with the gasket orgaskets in place, the assembly shall be subjected to separateinternal pressure test
30、s, first at 50 % of rated pressure for 60min, then at 212 times the rated pressure for 60 min withoutleakage at either pressure for the duration of either test. Thepressure shall then be continuously increased to the minimumshort-term rupture requirement of the applicable pipe withoutleakage. The pr
31、essure increase from 212 times rated tominimum short-term rupture requirement shall occur over a 60to 70-s period.FIG. 1 Relationship of Dimensions in 6.2D3139 98 (2011)28.1.2 Vacuum TestThe assembled joint shall withstand avacuum of 75-kPa gage (22 in. Hg) for 1 h with no leakagewhile in the auxili
32、ary deflected position in accordance with8.1.1.9. Rejection and Rehearing9.1 If the results of any test(s) do not meet the requirementsof this specification, the test(s) shall be conducted again onlyby agreement between the purchaser and the seller. Under suchagreement, minimum requirements shall no
33、t be lowered, nortests omitted, substituted, changed, or modified, nor shallspecification limits be changed. If upon retest, failure occurs,the quantity of product represented by the test(s) does not meetthe requirements of this specification.10. Certification10.1 When specified in the purchase orde
34、r or contract, thepurchaser shall be furnished certification by affidavit thatsamples representing each lot of production have been eithertested or inspected as directed in this specification and therequirements have been met. When specified in the purchaseorder or contract, a report of the test or
35、inspection results shallbe furnished.11. Keywords11.1 compression-type; elastometric; joints; push-on joint;rigid; sealsASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are express
36、ly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised,
37、either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may att
38、end. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States.
39、Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 2 Relationship of Dimensions in 6.2D3139 98 (2011)3
