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 ad
2、option 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 Department of Defense.1
3、. 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 requirem
4、ents, 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. Thesenote
5、s 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, if an
6、y,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 Design Basi
7、sfor 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 SystemCo
8、mponents-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 by me
9、ans 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 shall
10、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 shall
11、 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-facturers
12、 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 the jo
13、int.5.2 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 the1This specification is under the jurisdiction of ASTM Committee F17 on PlasticPiping Systems and is the direct respons
14、ibility of Subcommittee F17.20 on Joining.Current edition approved Feb. 1, 2011. Published November 2011. Originallyapproved in 1973. Last previous edition approved in 2005 as D3139 98(2005).DOI: 10.1520/D3139-98R11.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM
15、 Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from American Water Works Association (AWWA), 6666 W. QuincyAve., Denver, CO 80235, http:/www.awwa.org.4Available from NSF Internation
16、al, P.O. Box 130140, 789 N. Dixboro Rd., AnnArbor, MI 48113-0140, http:/www.nsf.org.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.hydrostatic design basis category for pipe when tested underthe same procedure. The hydrostatic desig
17、n 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 calculated on pipe minimum w
18、all 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 testing of the joint
19、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 or col-lapse, the compressive force exerted when the
20、 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 Joint DeflectionThe
21、 joint shall provide a seal whenthe pipe spigot is deflected axially in the socket to themaximum unstressed limit permitted by dimensional clearancebetween the spigot and bell.6. Dimensions, Mass, and Permissible Variations6.1 Joint Dimensions and Tolerances The dimensions ofthe bell, socket, and pl
22、ain end shall be in accordance with themanufacturers standard design dimensions of the joint.6.2 Push-On JointThe minimum wall thickness of thebell at any point between the ring groove (annular gasketspace) and the pipe barrel, shall conform to the dimension ratiorequirements for the pipe barrel. Th
23、e 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 standard design dimen-si
24、ons 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 depended upon to make th
25、ejoint 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 and free fromvisible
26、 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 tests. (For referee te
27、sting, standard laboratory con-ditions of 73F and 50 % relative humidity will apply.)FIG. 1 Relationship of Dimensions in 6.2FIG. 2 Relationship of Dimensions in 6.2D3139 98 (2011)28.1.1 Internal Pressure TestingLaboratory hydrostaticpressure tests on joints shall be made on an assembly of twosectio
28、ns of pipe properly connected in accordance with thejoint design and deflected 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 orgasket
29、s in place, the assembly shall be subjected to separateinternal pressure tests, 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 minimu
30、mshort-term rupture requirement of the applicable pipe withoutleakage. The pressure increase from 212 times rated tominimum short-term rupture requirement shall occur over a 60to 70-s period.8.1.2 Vacuum TestThe assembled joint shall withstand avacuum of 75-kPa gage (22 in. Hg) for 1 h with no leaka
31、gewhile in the auxiliary 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
32、requirements shall not 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
33、 in the purchase order 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 r
34、eport of the test or 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
35、 standard are expressly 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 year
36、s andif not revised, 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 committ
37、ee, which you may attend. 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
38、-2959,United States. 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 ASTM website (www.astm.org/COPYRIGHT/).D3139 98 (2011)3
