1、Designation:D326116Standard Specification forButt Heat Fusion Polyethylene(PE)Plastic Fittings forPolyethylene(PE)Plastic Pipe and Tubing1This standard is issued under the fixed designation D3261;the number immediately following the designation indicates the year oforiginal adoption or,in the case o
2、f 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 Defense.1.Scope*1.1 This specifica
3、tion covers polyethylene(PE)butt fusionfittings for use with polyethylene pipe(IPS,DIPS,and ISO)and tubing(CTS).Included are requirements for materials,workmanship,dimensions,marking,sustained pressure,andburst pressure.1.2 The values stated in inch-pound units are to be regardedas standard.The valu
4、es given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.2.Referenced Documents2.1 ASTM Standards:2D1598 Test Method for Time-to-Failure of Plastic PipeUnder Constant Internal PressureD1599 Test Method for Resistance to Sho
5、rt-Time HydraulicPressure of Plastic Pipe,Tubing,and FittingsD1600 Terminology forAbbreviated Terms Relating to Plas-ticsD2122 Test Method for Determining Dimensions of Ther-moplastic Pipe and FittingsD2513 Specification for Polyethylene(PE)Gas PressurePipe,Tubing,and FittingsD3350 Specification for
6、 Polyethylene Plastics Pipe and Fit-tings MaterialsF412 Terminology Relating to Plastic Piping SystemsF2206 Specification for Fabricated Fittings of Butt-FusedPolyethylene(PE)2.2 Federal Standard:Fed.Std.No.123 Marking for Shipment(Civil Agencies)32.3 Military Standard:MIL-STD-129 Marking for Shipme
7、nt and Storage32.4 National Sanitation Foundation Standard:Standard No.14 for Plastic Piping Components and RelatedMaterials42.5 Plastic Pipe Institute5PPI TR-3 Policies and Procedures for Developing Hydro-static Design Basis(HDB),Pressure Design Basis(PDB),Strength Design Basis(SDB),and Minimum Req
8、uiredStrength(MRS)Ratings for Thermoplastic Piping Mate-rials or Pipe7PPI TR-4 HDB/SDB/PDB/MRS Listed Materials,PPI List-ing of Hydrostatic Design Basis(HDB),Strength DesignBasis(SDB),Pressure Design Basis(PDB),and MinimumRequired Strength(MRS)Ratings for Thermoplastic Pip-ing Materials or Pipe3.Ter
9、minology3.1 Definitions are in accordance with Terminology F412and abbreviations are in accordance with Terminology D1600,unless otherwise specified.3.2 Definitions:3.2.1 butt fusion fitting,na fitting have one or more outletsthat can be butt fusion joined to pipe,tubing,or fitting.3.2.2 dimension r
10、atio(DR)for thermoplastic pipethe ratioof diameter to wall thickness.For this specification it iscalculated by dividing the specified outside diameter by thespecified wall thickness of the fitting at its area of fusion.DRsare rounded and do not calculate exactly.4.Classification4.1 GeneralThis speci
11、fication covers butt fusion fittingsintended for use with polyethylene pipe and tubing.4.1.1 Fittings covered by this specification are molded ormachined from extruded or molded stock.Fittings covered bythis specification may be produced by joining together one or1This specification is under the jur
12、isdiction of ASTM Committee F17 on PlasticPiping Systems and is the direct responsibility of Subcommittee F17.10 on Fittings.Current edition approved Nov.1,2016.Published November 2016.Originallyapproved in 1973.Last previous edition approved in 2015 as D3261 15.DOI:10.1520/D3261-16.2For referenced
13、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.3DLA Document Services Building 4/D 700 Robbins Avenue Philadelphia,PA19111-5094 h
14、ttp:/quicksearch.dla.mil/4Available from NSF International,P.O.Box 130140,789 N.Dixboro Rd.,AnnArbor,MI 48113-0140,http:/www.nsf.org.5Available from Plastics Pipe Institute(PPI),105 Decker Court,Suite 825,Irving,TX 75062,http:/www.plasticpipe.org.*A Summary of Changes section appears at the end of t
15、his standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 more fittings meeting this specification using butt or saddleheat fusion joining methods.Fittings that are butt fusion joinedto a length of pipe or tubing(a pup)meeting the end-u
16、sesystem specification are acceptable.4.1.2 Fittings fabricated by other types of thermal weldingmethods,such as extrusion welding,hot-air welding,andultrasonic welding are not included in this specification.4.1.3 Fittings fabricated with mitered heat fusion joints arecovered by Specification F2206,and are not included in thisspecification4.1.4 Fittings intended for use in the distribution of naturalgas or petroleum fuels shall also meet the requirements ofSpecification D2513.5.Ordering Informat
