1、Designation: D 3139 98 (Reapproved 2005)An American National StandardStandard Specification forJoints for Plastic Pressure Pipes Using Flexible ElastomericSeals1This standard is issued under the fixed designation D 3139; the number immediately following the designation indicates the year oforiginal
2、adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defens
3、e.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 requi
4、rements, 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. Thesen
5、otes 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
6、 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:2D 2837 Test Method for Obtaining Hydrostatic DesignB
7、asis for Thermoplastic Pipe Materials or Pressure DesignBasis for Thermoplastic Pipe ProductsF 477 Specification for Elastomeric Seals (Gaskets) forJoining Plastic Pipe2.2 AWWA Standard:AWWA C 651 Standard for Disinfecting Water Mains32.3 NSF Standard:ANSI/NSF Standard No. 61 for Drinking Water Syst
8、emComponents-Health Effects43. Terminology3.1 DefinitionsThis specification covers two types ofmechanical joints based on effecting water tightness throughcompression of an elastomeric seal or ring:3.1.1 mechanical jointa joint in which a positive seal isachieved when a gasket is compressed by means
9、 of a mechani-cal device.3.1.2 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 be
10、in accordance with the manufac-turers instructions.4. Materials and Manufacture4.1 The materials used in elastomeric seals shall meet therequirements of Specification F 477.4.2 LubricantThe lubricant shall be nontoxic and shallhave no deteriorating effects on the gasket and pipe materials.It shall n
11、ot impart taste or odor to water in a pipe that has beenflushed in accordance with AWWA C 651. 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 joi
13、nt.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 thehydrostatic design basis category for pipe when tested under1This specification is under the jurisdiction of ASTM Commi
14、ttee F17 on PlasticPiping Systems and is the direct responsibility of Subcommittee F17.20 on Joining.Current edition approved Mar. 1, 2005. Published March 2005. Originallyapproved in 1973. Last previous editionapproved in 1998 as D 3139 98.2For referenced ASTM standards, visit the ASTM website, www
15、.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 American Water Works Assn., 6666 W. Quincy Ave., Denver,CO 80235.4Available from NSF International P.O.
16、Box 130140, Ann Arbor, MI 48113-0140.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.the same procedure. The hydrostatic design basis for this jointdesign shall be established on a representative size at aminimuim test level of 10 po
17、ints and 2000 h in accordance withTest Method D 2837, except that the ends shall be restrained.Test pressure levels for establishing hydrostatic design basisshall be calculated on pipe minimum wall dimensions.5.2.1 Joint designs shall require retesting under this sectiononly if the joint design is c
18、hanged 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 design.5.3 Mechanical JointThe mechanical joint shall provide apressure rating equal to or greater than th
19、at 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 fitting istightened. If the wall is not sufficient to withstand the com-pressive force, then a rigid tubu
20、lar 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 joint shall provide a seal whenthe pipe spigot is deflected axially in the socket to themaximum unstresse
21、d 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 plain end shall be in accordance with themanufacturers standard design dimensions of the joint.6.2 Push-On J
22、ointThe 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. The minimum wall thicknessin the sealing portion of the ring groove and bell entry sectionsshall equal or ex
23、ceed 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-sions and tolerances. The gasket shall be of such size and shapeas to provide an adequate compressive force
24、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 thejoint flexible and water tight. The gasket shall be a continuouselastomeric ring.7. Workmanship, Finish,
25、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 cracks, holes, foreign inclusions, or injurious defects.The components of the joints shall be as uniform
26、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 testing, standard laboratory con-ditions of 73F and 50 % relative humidity will apply.)8.1.1 Internal Pressu
27、re TestingLaboratory hydrostaticpressure tests on joints shall be made on an assembly of twoFIG. 1 Relationship of Dimensions in 6.2FIG. 2 Relationship of Dimensions in 6.2D 3139 98 (2005)2sections of pipe properly connected in accordance with thejoint design and deflected to the limit defined in 5.
28、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 tests, first at 50 % of rated pr
29、essure 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 pressure increase from 212 tim
30、es 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 leakagewhile in the auxiliary deflected position in accordance with8.1.1.9. Rejection and Rehearing9.1 If the
31、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 not be lowered, nortests omitted, substituted, changed, or modified, nor shallspecific
32、ation 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 order or contract, thepurchaser shall be furnished certification by affidavit thatsample
33、s 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 inspection results shallbe furnished.11. Keywords11.1 compression-type; elastometric
34、; 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 expressly advised that determination of the validity of any such patent rights, and the ris
35、kof 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, either reapproved or withdrawn. Your comments are invited either for revision of thi
36、s 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 attend. If you feel that your comments have not received a fair hearing you shouldmake
37、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. 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).D 3139 98 (2005)3
