1、Designation: F1960 18F1960 18a An American National StandardStandard Specification forCold Expansion Fittings with PEX Reinforcing Rings for Usewith Cross-linked Polyethylene (PEX) and Polyethylene ofRaised Temperature (PE-RT) Tubing1This standard is issued under the fixed designation F1960; the num
2、ber immediately following the designation indicates the year 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 () indicates an editorial change since the last revision or reapproval.1. Scope
3、*1.1 This specification covers cold expansion fittings and cross-linked (PEX) reinforcing rings for use with cross-linkedpolyethylene (PEX) plastic tubing in nominal tubing sizes of 38, 12, 58, 34, 1, 114, 112, 2, 212, and 3 in. that meet the requirementsof SpecificationsSpecification F876 or F3253
4、and for use with Polyethylene of RaisedTemperature (PE-RT) pipe in nominal tubingsizes of 38, 12, 58, 34, 1, 114, 112, 2, 212, and 3 that meet the requirements of Specification F2769. These fittings are intended foruse in 100 psi (690 kPa) cold- and hot-water distribution systems operating at temper
5、atures up to and including 180 F (82 C).The system is comprised of a PEX reinforcing ring and a cold expansion fitting. Included are the requirements for materials,workmanship, dimensions, and markings to be used on the fitting components. The components covered by this specification areintended for
6、 use in residential and commercial, hot and cold, potable water distribution systems as well as sealed central heating,including under-floor-heating systems.1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematicalconversions to SI uni
7、ts that are provided for information only and are not considered standard.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety, health, and environmental practic
8、es and determine the applicability ofregulatory limitations prior to use.1.4 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides and Recom
9、mendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2A351/A351M Specification for Castings, Austenitic, for Pressure-Containing PartsB16/B16M Specification for Free-Cutting Brass Rod, Bar and Shapes for Use in Screw M
10、achinesB140/B140M Specification for Copper-Zinc-Lead (Red Brass or Hardware Bronze) Rod, Bar, and ShapesB62 Specification for Composition Bronze or Ounce Metal CastingsB75/B75M Specification for Seamless Copper TubeB283/B283M Specification for Copper and Copper-Alloy Die Forgings (Hot-Pressed)B371/B
11、371M Specification for Copper-Zinc-Silicon Alloy RodB453/B453M Specification for Copper-Zinc-Lead Alloy (Leaded-Brass) Rod, Bar, and ShapesB584 Specification for Copper Alloy Sand Castings for General ApplicationsB927/B927M Specification for Brass Rod, Bar, and ShapesB967/B967M Specification for Cop
12、per-Zinc-Tin-Bismuth Alloy Rod, Bar and WireD792 Test Methods for Density and Specific Gravity (Relative Density) of Plastics by DisplacementD1505 Test Method for Density of Plastics by the Density-Gradient TechniqueD1600 Terminology for Abbreviated Terms Relating to PlasticsD2122 Test Method for De
13、termining Dimensions of Thermoplastic Pipe and Fittings1 This specification is under the jurisdiction of ASTM Committee F17 on Plastic Piping Systems and is the direct responsibility of Subcommittee F17.10 on FittingsCurrent edition approved Oct. 1, 2018Nov. 1, 2018. Published October 2018December 2
14、018. Originally approved in 1999. Last previous edition approved in 20152018as F1960 15.F1960 18. DOI: 10.1520/F1960-18.10.1520/F1960-18A.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume i
15、nformation, refer to the standards Document Summary page on the ASTM website.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequatel
16、y depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this standardCopyright ASTM Inter
17、national, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1D2765 Test Methods for Determination of Gel Content and Swell Ratio of Crosslinked Ethylene PlasticsD3035 Specification for Polyethylene (PE) Plastic Pipe (DR-PR) Based on Controlled Outside DiameterD6394 S
18、pecification for Sulfone Plastics (SP)F412 Terminology Relating to Plastic Piping SystemsF876 Specification for Crosslinked Polyethylene (PEX) TubingF877 Specification for Crosslinked Polyethylene (PEX) Hot- and Cold-Water Distribution SystemsF2769 Specification for Polyethylene of Raised Temperatur
19、e (PE-RT) Plastic Hot and Cold-Water Tubing and DistributionSystemsF3253 Specification for Crosslinked Polyethylene (PEX) Tubing with Oxygen Barrier for Hot- and Cold-Water HydronicDistribution Systems2.2 ANSI Standard:B1.20 Pipe Threads General Purpose3B16.18 Cast Copper Alloy Solder Joint Pressure
20、 FittingsB16.22 Wrought Copper and Copper Alloy Solder Joint Pressure Fittings2.3 NSF Standards:NSF 14 for Plastic Piping Components and Related Materials4NSF 61 for Drinking Water System Components-Health Effects42.4 Manufacturers Standardization Society Standards:SP-104 Wrought Copper Solder Joint
21、 Pressure Fittings53. Terminology3.1 Definitions:3.1.1 Definitions are in accordance with Terminology F412 and abbreviations are in accordance with Terminology D1600,unless otherwise indicated.3.1.2 PEX reinforcing ringscross-linked polyethylene rings used to add contraction force around the cold ex
22、pansion fittings.4. Classification4.1 This specification covers one class of cold expansion fittings with PEX reinforcing rings suitable for use with PEX tubingthat meets the requirements of SpecificationsSpecification F876 or F3253 and with PE-RT tubing that meets the requirements ofSpecification F
23、2769.5. Materials and Manufacture5.1 Cold expansion fittings shall be made from one of the following materials:5.1.1 Brass:5.1.1.1 Machined BrassMachined brass fittings shall be made from material meeting the requirements of one of the followinglisted below:Specification AlloyASTM B16/B16M UNS C3600
24、0ASTM B140/B140M UNS C31400ASTM B371/B371M UNS C69300Standard EN 12164 CW614NASTM B453/B453M UNS C35300ASTM B927/B927M UNS C27450, C27451ASTM B967/B967M UNS C49260, C493405.1.1.2 Forged BrassForged brass fittings shall be made from material meeting the requirements of SpecificationB283/B283M, Copper
25、Alloy UNS Nos. C27450, C27451, C27453, C35330, C36500, C37700, C46400, C48600, C49260, C49340,or C69300.5.1.1.3 Cast Copper AlloysCast copper alloy fittings shall be made from material meeting the requirements of SpecificationB584, Copper Alloy UNS Nos. C84400, C83800, C87850 or C89844 or C89836 or
26、Specification B62, Copper Alloy UNS No.C83600, or Standard EN 1982, copper alloy EN Symbol CuSn4Zn6Pb3C.5.1.2 Sulfone:5.1.2.1 20 % Glass-Filled PolysulfonePolysulfone fittings produced using glass reinforcement shall be molded frompolysulfone materials as specified in Specification D6394. The polyme
27、rs shall consist of polysulfone and glass fiber and meet thefollowing line call out for additional properties (SP0113G20A30430).(SP0110G20A30430).3 Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http:/www.ansi.org4 Available from NSF Inter
28、national, P.O. Box 130140, 789 N. Dixboro Rd., Ann Arbor, MI 48113-0140, http:/www.nsf.org.5 Available from Manufacturers Standardization Society of the Valve and Fittings Industry (MSS), 127 Park St., NE, Vienna, VA 22180-4602, http:/www.mss-.F1960 18a25.1.2.2 Unreinforced Sulfone Plastic (SP)Fitti
29、ngs shall be molded from sulfone plastic (SP) as specified in SpecificationD6394. The material shall be unreinforced polysulfone (group 01, class 1, grade 2), or polyphenylsulfone (group 3, class 1, grade2.) Material may also be an unreinforced blend of these two materials with the polyphenylsulfone
30、 continuous phase comprising55 to 80% of the blend. or unreinforced polyphenylsulfone/polysulfone blends (group 04, class 1, grade 2)5.1.2.3 Clean rework material of the same commercial designation, generated for the manufacturers own production may beused by the same manufacturer, provided the fitt
31、ings meet all of the requirements of this specification. Rework material shall notbe introduced at a ratio exceeding 25%.5.2 Reinforcing rings shall be made from PEX material meeting the performance requirements of 6.1.5.3 Stainless Steelfittings shall be made from material meeting the requirements
32、of Specification A351/A351M, stainless steelUNS No. J92800.5.4 Wrought CopperWrought copper fittings shall be made from material meeting the requirements of SpecificationB75/B75M for one of the following coppers: copper UNS C10200, C10300, C10800, or C12200.6. General Requirements6.1 GeneralAll perf
33、ormance tests shall be performed on assemblies of fittings, PEX reinforcing rings and PEX or PE-RTtubing. Fittings and reinforcing rings shall meet the material and dimensional requirements of this specification. PEX tubing shallmeet the requirements of SpecificationsSpecification F876 or F3253. PE-
34、RT tubing shall meet the requirements of SpecificationF2769.Assembly of test specimens shall be in accordance with 10.1. Each assembly shall contain at least two joints. Use separatesets of assemblies for each performance test requirement.6.1.1 Fitting manufactured according to this specification an
35、d intended for use with PEX tubing meeting requirements ofSpecification F876, shall comply with the following performance requirements of Specification F877. When a section with anidentical title appears in this specification, it contains additional requirements that supplement those found in Specif
36、ication F877.6.1.1.1 Requirements,6.1.1.2 Test Methods, and6.1.1.3 Retest and Rejection.6.1.2 Fittings, manufactured according to this specification and intended for use with PE-RT tubing meeting the requirementsof Specification F2769, shall comply with the following performance requirements of Spec
37、ification F2769. When a section withan identical title appears in this Specification, it contains additional requirements that supplement those found in SpecificationF2769.6.1.2.1 Requirements,6.1.2.2 Test Methods, and6.1.2.3 Retest and Rejection.6.2 DimensionsAny randomly selected fitting or fittin
38、gs and PEX reinforcing rings shall be used to determine dimensions.Measurements shall be made in accordance with Test Method D2122, except determine diameter by making measurements at fourlocations spaced at approximately 45 apart around the circumference. Inspection and gauging of solder joint ends
39、 shall beaccordance with ANSI B16.18, ANSI B16.22, or Manufacturers Standardization Society SP-104.7. Performance Requirements7.1 PEX Reinforcing Rings:7.1.1 DensityWhen determined in accordance with 11.1, the PEX reinforcing rings shall have a density in the range from 926to 940 kg/m3.7.1.2 Degree
40、of Cross-linkingWhen tested in accordance with 11.2, the degree of cross-linking for PEX reinforcing rings shallbe within the range from 70 to 89% inclusive.7.1.3 Stabilizer Migration ResistanceWhen tested in accordance with 11.3, the time t2, shall be at least 50% of the time, t1.8. Dimensions8.1 D
41、imensions and TolerancesThe dimensions and tolerances of fittings and PEX reinforcing rings shall be as shown in Figs.1 and 2, and Fig. 4 when measured in accordance with 6.2.8.1.1 AlignmentThe maximum angular variation of any opening shall not exceed 1 off the true centerline axis.8.1.2 Fittings wi
42、th Solder Joint EndsSolder joint ends shall be in accordance with ANSI B16.22, ANSI B16.18 or MSSSP-104.8.1.3 Tapered Threaded EndsFitting threads shall be right-hand conforming to ANSI B1.20.1. They shall be taper threads(NPT).F1960 18a3NOTE-BREAK ALL INTERNAL CORNERS .003 minALL DIAMETER CONCENTRI
43、CITY .005 TIR*Maximum width of dimension “G” allowed to transition to surface of dimension “B”Brass, Stainless Steel and Wrought Copper DimensionsNominalTubingSizesMin.WallMin.IDAmaxminBmaxminCmaxminDmaxminEmaxminFmaxminGminHmaxminImaxminJmaxmin38 0.047 0.260 0.395 0.441 0.480 0.427 0.067 0.128 0.32
44、5 0.127 0.2860.375 0.433 0.472 0.407 0.051 0.108 0.051 0.305 0.107 0.26612 0.057 0.378 0.533 0.579 0.618 0.565 0.067 0.128 0.404 0.167 0.3250.513 0.571 0.610 0.545 0.051 0.108 0.051 0.384 0.147 0.30558 0.057 0.500 0.655 0.697 0.748 0.683 0.067 0.167 0.482 0.207 0.4040.635 0.689 0.740 0.663 0.051 0.1
45、47 0.051 0.462 0.187 0.38434 0.057 0.595 0.748 0.795 0.874 0.782 0.067 0.207 0.522 0.246 0.4430.728 0.787 0.866 0.762 0.051 0.187 0.051 0.502 0.226 0.4231 0.072 0.795 0.985 1.032 1.110 0.998 0.067 0.246 0.640 0.285 0.5610.965 1.024 1.102 0.978 0.051 0.226 0.051 0.620 0.265 0.541114 0.075 0.960 1.159
46、 1.276 1.362 1.237 0.080 0.299 0.781 0.348 0.6841.139 1.266 1.352 1.217 0.064 0.279 0.064 0.761 0.328 0.664112 0.095 1.084 1.324 1.382 1.494 1.349 0.093 0.351 0.919 0.408 0.8051.304 1.374 1.486 1.329 0.077 0.331 0.077 0.899 0.388 0.7852 0.095 1.550 1.800 1.958 2.079 1.891 0.093 0.467 1.137 0.521 1.0
47、301.780 1.950 2.071 1.871 0.077 0.447 0.077 1.117 0.501 1.010212 0.105 1.990 2.280 2.430 2.585 2.430 0.155 0.610 1.520 0.610 1.3502.260 2.410 2.565 2.410 0.135 0.590 0.160 1.480 0.590 1.3103 0.115 2.410 2.720 2.910 3.080 2.910 0.180 0.710 1.810 0.720 1.6102.700 2.890 3.060 2.890 0.160 0.690 0.190 1.
48、770 0.700 1.570F1960 18a49. Workmanship, Finish, and Appearance9.1 The fittings shall be made from compounds that are homogeneous throughout. The sealing surfaces of the insert shall besmooth and free of foreign material. The fitting walls shall be free of cracks, holes, blisters, voids, foreign inc
49、lusions, or otherdefects that are visible to the naked eye and that affect wall integrity.10. Assembly10.1 Cold Expansion JointsFittings shall be joined to PEX or PE-RT tubing by the contraction of the expanded tubing andreinforcing ring over the insert of the cold expansion fitting. Fittings and PEX reinforcing rings shall meet the dimensional andmaterial requirements of this standard. PEX tubing shall meet the requirements of Specification F876 or F3253. PE-RT tubing shallmeet the requirements of Specification F2769.1
