1、Designation: D 2683 04An American National StandardStandard Specification forSocket-Type Polyethylene Fittings for Outside Diameter-Controlled Polyethylene Pipe and Tubing1This standard is issued under the fixed designation D 2683; the number immediately following the designation indicates the year
2、oforiginal 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 Departmen
3、t of Defense.1. Scope1.1 This specification covers polyethylene socket-type fit-tings for use with outside diameter-controlled polyethylenepipe as specified by Specifications D 3035 and D 2513. Re-quirements for materials, workmanship, dimensions, and pres-sure performance are included. Where applic
4、able in thisspecification, “pipe” shall mean “pipe and tubing.”1.2 The values stated in inch-pound units are to be regardedas the standard. The values in parentheses are given forinformation only.1.3 The following safety hazards caveat pertains only to thetest method portion, Section 8, of this spec
5、ification: Thisstandard does not purport to address all of the safety concerns,if any, associated with its use. It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2. Referenc
6、ed Documents2.1 ASTM Standards:2D 618 Practice for Conditioning Plastics for TestingD 1598 Test Method for Time-to-Failure of Plastic PipeUnder Constant Internal PressureD 1599 Test Method for Resistance to Short-Time Hydrau-lic Failure Pressure of Plastic Pipe, Tubing, and FittingsD 1600 Terminolog
7、y for Abbreviated Terms Relating toPlasticsD 2122 Test Method for Determining Dimensions of Ther-moplastic Pipe and FittingsD 2513 Specification for Thermoplastic Gas Pressure Pipe,Tubing, and FittingsD 2657 Practice for Heat Fusion Joining of PolyethylenePipe and FittingsD 3035 Specification for Po
8、lyethylene (PE) Plastic Pipe(DR-PR) Based on Controlled Outside DiameterD 3350 Specification for Polyethylene Plastics Pipe andFitting MaterialsF 412 Terminology Relating to Plastic Piping Systems2.2 Federal Standard:Fed. Std. No. 123 Marking for Shipment (Civil Agencies)32.3 Military Standard:MIL-S
9、TD-129 Marking for Shipment and Storage33. Terminology3.1 Definitions are in accordance with Terminology F 412and abbreviations are in accordance with Terminology D 1600,unless otherwise specified. The abbreviation of polyethyleneplastic is PE.3.2 standard thermoplastic pipe dimension ratio (SDR)the
10、 ratio of pipe outside diameter to wall thickness. It iscalculated by dividing the average outside diameter of the pipeby the minimum wall thickness.4. Classification4.1 This specification covers polyethylene fittings of thesocket type made as specified in 5.1 and 5.24.1.1 Fittings covered by this s
11、pecification are normallymolded. In-line fittings such as couplings, unions, bushings,caps, nipples, etc., may be extruded or machined from extrudedstock. Special fittings such as transition fittings and tappingteets shall be assembled and fabricated in accordance withprocedures agreed upon between
12、the manufacturer and thepurchaser.4.1.2 Fittings covered by this specification are intended tobe joined by heat fusion to PE pipe; observe the cautionsstressed in Note 2.1This specification is under the jurisdiction of ASTM Committee F17 on PlasticPiping Systems and is the direct responsibility of S
13、ubcommittee F17.10 on Fittings.Current edition approved Sept. 1, 2004. Published September 2004. Originallyapproved in 1968. Last previous edition approved in 1998 as D 2683 98.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. F
14、or Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.1Copyright ASTM International, 100 Barr Harbor Drive,
15、 PO Box C700, West Conshohocken, PA 19428-2959, United States.4.1.3 Fittings intended for use in the distribution of naturalgas or petroleum fuels shall also meet the requirements ofSpecification D 2513.5. Materials5.1 This specification covers polyethylene fittings madefrom polyethylene plastics co
16、mpounds as defined in Specifi-cation D 3350.NOTE 1The Plastics Pipe Institute has recommended a hydrostaticdesign stress of 630 psi (4.34 MPa) for pipe compounds designated as PE2406 800 psi (5.51 MPa) for pipe compounds designated as PE3408.NOTE 2Some polyethylene materials that meet the requiremen
17、ts ofthe PE24 or PE34 grades are not easily heat fusible to themselves orintermixed. Since the effects of intermixing pipe and fittings made ofdifferent polyethylene compounds have not been fully determined, theuser shall assure himself of satisfactory long-term performance of suchjoints.5.2 Rework
18、MaterialClean rework material generatedfrom the fitting manufacturers own production may be used bythe same manufacturer, as long as the fittings producedconform to the requirements of this specification.6. Requirements6.1 Dimensions and Tolerances:6.1.1 Fittings, sockets, dimensions, and tolerances
19、 shall beas shown in Table 1, Table 2, and Table 3 when measured inaccordance with 8.4. For reducing fittings, socket and insidediameter minimums for the appropriate size shall apply.6.1.2 The maximum angular variation of any opening shallnot be more than 2 off the true centerline axis.6.1.3 The min
20、imum wall thickness of fittings shall be 125 %of the minimum wall thickness of the pipe with which they aredesigned to be joined. For reducing fittings, the smallest sizewall thickness shall be 125 % of the smallest pipe wall.6.2 System Pressure Test Requirements:6.2.1 Short-Term Rupture StrengthThe
21、 minimum short-term rupture strength of the fitting and fused pipe shall not beTABLE 1 Fittings for Outside Diameter-Controlled Polyethylene PipeAA Socket Entrance DiameterBB Socket Bottom DiameterC,DCDNominalPipeSize, in.,AverageDiameterToleranceon DiameterMaximumOut-of-RoundAverageDiameterToleranc
22、e onDiameterMaximumOut-of-RoundSocketDepth,minInside Diametermin maxin. (mm)12 0.810(20.57)+0.005(+0.127)0.010(0.254)60.008(60.203)0.804(20.42)+0.005(+0.127)0.026(0.660)60.008(60.203)0.625(15.88)0.648(16.46)0.804(20.42)34 1.020(25.91)60.008(60.203)60.010(60.254)1.012(25.70)+0.008(+0.203)0.012(0.305)
23、60.010(60.254)0.625(15.88)0.814(20.68)1.020(25.91)1 1.275(32.38)60.008(60.203)60.010(60.254)1.267(32.18)+0.008(+0.203)0.012(0.305)60.010(60.254)0.687(17.4)1.020(25.91)1.275(32.38)114 1.620(41.15)60.008(60.203)60.012(60.305)1.612(40.94)+0.008(+0.203)0.016(0.406)60.012(60.305)0.875(22.22)1.301(33.04)1
24、.620(41.15)112 1.860(47.24)60.010(60.254)60.012(60.305)1.849(46.96)+0.010(+0.254)0.020(0.508)60.012(60.305)0.875(22.22)1.496(38.0)1.859(47.22)2 2.335(59.31)60.010(60.254)60.012(60.305)2.324(59.03)+0.010(+0.254)0.020(0.508)60.012(60.305)0.875(22.22)1.885(47.88)2.334(59.28)3 3.455(87.76)60.015(60.381)
25、60.015(60.381)3.439(87.35)+0.015(+0.381)0.025(0.635)60.015(60.381)1.000(25.4)2.780(70.61)3.454(87.73)4 4.450(113.03)60.015(60.381)60.015(60.381)4.434(112.62)+0.015(+0.381)0.035(0.889)60.015(60.381)1.125(28.58)3.575(90.80)4.449(113.00)AMinimum dimensions have zero negative tolerance. The sketches and
26、 designs of fittings are illustrative only. Entrance chamfer or radius is optional.BMeasured at top of socket wall taper, just below entrance radius.CDimensions of tools should be checked for consistency with fittings used. Socket bottom diameter must be equal to or smaller than entrance diameter.DM
27、easured at bottom of socket wall taper, just above bottom radius.D 2683 042less than the minimum short-term rupture strength of the pipeor tubing in the system when tested in accordance with 8.5.2.The test pressures shall be as shown in Table 4. Test specimensshall be prepared for testing as describ
28、ed in 8.5.1.6.2.2 Sustained PressureThe fitting(s) and fused pipe ortubing shall not fail (as defined in the Descriptions of TermsSection of Test Method D 1598) at the test pressures given inTable 5 when tested in accordance with 8.4. To ensureuniformity in preparation of assemblies for sustained pr
29、essureTABLE 2 Fittings for Outside Diameter-Controlled Polyethylene TubingANominalTubingSize,in.A Socket Entrance DiameterBB Socket Bottom DiameterC,DCDAverageDiameterToleranceon DiameterMaximumOut-of-RoundAverageDiameterTolerance onDiameterMaximumOut-of-RoundSocketDepth,minInside Diametermin maxin.
30、 (mm)12 0.585(14.86)+0.010(+0.25)0.007(0.18)60.010(60.25)0.575(14.61)+0.010(+0.25)0.007(0.18)60.010(60.25)0.625(15.88)0.500(12.70)0.585(14.86)34 0.835(21.21)60.010(60.25)60.010(60.25)0.825(20.96)60.010(60.25)60.010(60.25)0.625(15.88)0.750(19.05)0.835(21.21)1 1.075(27.30)60.008(60.20)60.008(60.20)1.0
31、70(27.18)+0.008(+0.20)0.012(0.30)60.008(60.20)0.625(15.88)0.850(21.59)1.078(27.38)114 1.330(33.78)60.008(60.20)60.010(60.25)1.322(33.58)60.008(60.20)60.010(60.25)0.687(17.45)1.250(31.75)1.330(33.78)AMinimum dimensions have zero negative tolerance. The sketches and designs of fittings are illustrativ
32、e only. Entrance chamfer or radius is optional.BMeasured at top of socket wall taper, just below entrance radius.CDimensions of tools should be checked for consistency with fittings used. Socket bottom diameter must be equal to or smaller than entrance diameter.DMeasured at bottom of socket wall tap
33、er, just above bottom radius.TABLE 3 Minimum Dimensions from Center to End of Sockets (Laying Length) for Tees and 90 Elbows PE Socket-Type Pipe Fittings,for SDR 11.0 Pipe, in.Nominal PipeSizeG, minin. (mm)1258 (15.88)3434 (19.05)178 (22.22)114 1 (25.4)112 114 (31.75)2112 (38.10)3234 (69.85)4 4 (101
34、.60)TABLE 4 Burst Pressure Requirements for Water At 73F (23C)for SDR-PR PE Plastic Pipe FittingsBurst PressureA, min, psi (MPa)PE 2406, PE 3408 500 (3.45)AThe fiber stresses used to derive the pressure is 2520 (17.37).D 2683 043evaluation, all test joints shall be made in accordance with heatfusion
35、 practices found in D 2657.7. Workmanship, Finish, and Appearance7.1 The manufacture of these fittings shall be in accordancewith good commercial practice so as to produce fittingsmeeting the requirements of this specification. Fittings shall behomogeneous throughout and free of cracks, holes, forei
36、gninclusions, or injurious defects. The fittings shall be as uniformas commercially practicable in color, opacity, density, andother physical properties.8. Test Methods8.1 ConditioningCondition the test specimens at 73.4 63.6F (23 6 2C) for 40 h minimum prior to test in accordancewith Procedure A of
37、 Methods D 618, for those tests whereconditioning is required and in all cases of disagreement.8.2 Test ConditionsConduct tests at the standard labora-tory temperature of 73.4 6 3.6F (23 6 2C).8.3 SamplingSelect at random sufficient quantity of fit-tings from each lot of shipment and test to determi
38、ne that thebasic properties and dimensions are in conformance with thisspecification.NOTE 3For individual orders or specifications, only those tests andnumbers of tests specifically agreed upon between the purchaser and themanufacturer need be conducted.8.4 DimensionsMeasure in accordance with Test
39、MethodD 2122.8.4.1 Maximum out-of-round tolerance on sockets appliesto the actual measured average inside diameter.NOTE 4ExampleIn the 1-in. IPS size, if the actual measuredaverage inside socket entrance diameter was 1.281 in. (32.54 mm) then theextreme measured diameters due to ovality can be 1.291
40、 in. (32.79 mm)maximum and 1.271 in. (32.28 mm) minimum when the out-of-roundtolerance is 60.010 in. (2.54 mm).8.5 Pressure Test:8.5.1 Prepare test assemblies in such a manner that each,whether individual fittings or groups of fittings, is a systemincorporating at least one length of pipe or tubing
41、and one ormore fittings in addition to end closures. Fuse all fittingsoutlets with the appropriate size pipe or tubing. One piece ofpipe in the system shall have a minimum length equal to fivepipe diameters.8.5.2 Short-Term Rupture TestThe test equipment, proce-dures, and failure definition shall be
42、 as specified in TestMethod D 1599. Increase the hydrostatic pressure at a uniformrate such that the specimen fails between 60 and 70 s from thestart of the test. Minimum failure pressures are shown in Table3.8.5.3 Sustained Pressure TestPrepare six fitting speci-mens as prescribed in 8.5.18.5.3.1 S
43、elect the test temperature and pressures from one ofthe test options in Table 5.8.5.3.2 Condition the test specimens at the selected optiontest temperature for not less than 6 h.8.5.3.3 Test the specimens with water, in accordance withTest Method D 1598 at the selected option of stress and hoursof t
44、esting.8.5.3.4 Pressurize the six specimens at the required pressure(610 psi, 669 kPa) and for the duration specified for the testoption selected from Table 5.8.5.3.5 Failure of the same fittings on any two of the sixspecimens tested shall constitute a failure of that particularfitting. Failure of a
45、 fitting in one of the six specimens is causefor retest of six additional specimens. Failure of the samefitting in the retest shall constitute failure of the test for thatfitting.9. Packaging and Package Marking9.1 Fittings shall be marked with the following:9.1.1 Manufacturers name or trademark,9.1
46、.2 Material designation (such as, PE 2406, or PE 3408),9.1.3 Fittings intended for the transport of potable watershall include the seal or mark of the laboratory making theevaluation for this purpose,9.1.4 Size, and9.1.5 This designation number, D 2683.9.2 Where the size of the fitting does not allo
47、w completemarking, identification marking may be omitted in the follow-ing sequence: size, designation number, material designation.9.3 All required markings shall be legible and so applied asto remain legible under normal handling and installationpractices. If indentation is used, it shall not redu
48、ce the wallthickness to less than the minimum value for the fittings, and itshould be demonstrated that these marks have no effect on thelong-term strength of the fittings. In addition to the above, thefittings shall bear an appropriate code number that will assureidentification on the fittings as t
49、o month of production and resinformulas used in the production of said fittings. The manufac-turer shall maintain such additional records as are necessary toconfirm identification of all coded fittings.10. Quality Assurance10.1 When the product is marked with this designation,D 2683, the manufacturer affirms that the product was manu-factured, inspected, sampled, and tested in accordance with thisspecification and has been found to meet the requirements ofthis specification.TABLE 5 Sustained Pressure Test OptionsTes
