1、Designation: F1960 14aStandard Specification forCold Expansion Fittings with PEX Reinforcing Rings for Usewith Cross-linked Polyethylene (PEX) Tubing1This standard is issued under the fixed designation F1960; the number immediately following the designation indicates the year oforiginal adoption or,
2、 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*1.1 This specification covers cold expansion fittings andcross-linked (PEX) reinfor
3、cing rings for use with cross-linkedpolyethylene (PEX) plastic tubing in38,12,58,34,1,114,112in. 2, 214, and 3 in. nominal diameters that meet the require-ments of Specifications F876 and F877. These fittings areintended for use in 100 psi (690 kPa) cold- and hot-waterdistribution systems operating
4、at temperatures up to andincluding 180F (82C). The system is comprised of a PEXreinforcing ring and a cold expansion fitting. Included are therequirements for materials, workmanship, dimensions, andmarkings to be used on the fitting components. The compo-nents covered by this specification are inten
5、ded for use inresidential and commercial, hot and cold, potable water distri-bution systems as well as sealed central heating, includingunder-floor-heating systems.1.2 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to
6、SI units that are provided for information onlyand are not considered standard.1.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and dete
7、rmine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2A351/A351M Specification for Castings, Austenitic, forPressure-Containing PartsB16/B16M Specification for Free-Cutting Brass Rod, Barand Shapes for Use in Screw MachinesB140/B140M Specification
8、 for Copper-Zinc-Lead (RedBrass or Hardware Bronze) Rod, Bar, and ShapesB62 Specification for Composition Bronze or Ounce MetalCastingsB75 Specification for Seamless Copper TubeB283 Specification for Copper and Copper-Alloy Die Forg-ings (Hot-Pressed)B371/B371M Specification for Copper-Zinc-Silicon
9、AlloyRodB453/B453M Specification for Copper-Zinc-Lead Alloy(Leaded-Brass) Rod, Bar, and ShapesB584 Specification for Copper Alloy Sand Castings forGeneral ApplicationsB927/B927M Specification for Brass Rod, Bar, and ShapesB967/B967M Specification for Copper-Zinc-Tin-BismuthAlloy Rod, Bar and WireD79
10、2 Test Methods for Density and Specific Gravity (Rela-tive Density) of Plastics by DisplacementD1505 Test Method for Density of Plastics by the Density-Gradient TechniqueD1600 Terminology forAbbreviated Terms Relating to Plas-ticsD2122 Test Method for Determining Dimensions of Ther-moplastic Pipe an
11、d FittingsD2765 Test Methods for Determination of Gel Content andSwell Ratio of Crosslinked Ethylene PlasticsD3035 Specification for Polyethylene (PE) Plastic Pipe (DR-PR) Based on Controlled Outside DiameterD6394 Specification for Sulfone Plastics (SP)F412 Terminology Relating to Plastic Piping Sys
12、temsF876 Specification for Crosslinked Polyethylene (PEX) Tub-ingF877 Specification for Crosslinked Polyethylene (PEX) Hot-and Cold-Water Distribution Systems2.2 ANSI Standard:B1.20 Pipe Threads General Purpose3B16.18 Cast Copper Alloy Solder Joint Pressure FittingsB16.22 Wrought Copper and Copper A
13、lloy Solder JointPressure Fittings1This specification is under the jurisdiction of ASTM Committee F17 on PlasticPiping Systems and is the direct responsibility of Subcommittee F17.10 on FittingsCurrent edition approved Nov. 15, 2014. Published January 2015. Originallyapproved in 1999. Last previous
14、edition approved in 2014 as F1960 14. DOI:10.1520/F1960-14A.2For referenced 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.3
15、Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United Sta
16、tes12.3 NSF Standards:NSF 14 for Plastic Piping Components and Related Materi-als4NSF 61 for Drinking Water System Components-HealthEffects42.4 Manufacturers Standardization Society Standards:SP-104 Wrought Copper Solder Joint Pressure Fittings53. Terminology3.1 Definitions:3.1.1 Definitions are in
17、accordance with Terminology F412and abbreviations are in accordance with Terminology D1600,unless otherwise indicated.3.1.2 PEX reinforcing ringscross-linked polyethylenerings used to add contraction force around the cold expansionfittings.4. Classification4.1 This specification covers one class of
18、cold expansionfittings with PEX reinforcing rings suitable for use with PEXtubing that meets the requirements of Specifications F876 andF877.5. Materials and Manufacture5.1 Cold expansion fittings shall be made from one of thefollowing materials:5.1.1 Brass:5.1.1.1 Machined BrassMachined brass fitti
19、ngs shall bemade from material meeting the requirements of one of thefollowing listed below:Specification AlloyASTM B16/B16M UNS C36000ASTM B140/B140M UNS C31400ASTM B371/B371M UNS C69300Standard EN 12164 CW614NASTM B453/B453M UNS C35300ASTM B927/B927M UNS C27450, C27451ASTM B967/B967M UNS C49260, C
20、493405.1.1.2 Forged BrassForged brass fittings shall be madefrom material meeting the requirements of Specification B283,Copper Alloy UNS Nos. C27450, C27451, C35330, C36500,C37700, C46400, C48600, C49260, C49340, or C69300.5.1.1.3 Cast Copper AlloysCast copper alloy fittings shallbe made from mater
21、ial meeting the requirements of Specifica-tion B584, Copper Alloy UNS Nos. C84400, C83800, C87850or C89844 or C89836 or Specification B62, CopperAlloy UNSNo. C83600, or Standard EN 1982, copper alloy EN SymbolCuSn4Zn6Pb3C.5.1.2 Sulfone:5.1.2.1 20 % Glass-Filled PolysulfonePolysulfone fittingsproduce
22、d using glass reinforcement shall be molded frompolysulfone materials as specified in Specification D6394. Thepolymers shall consist of polysulfone and glass fiber and meetthe following line call out for additional properties(SP0113G20A30430).5.1.2.2 Unreinforced Sulfone Plastic (SP)Fittings shall b
23、emolded from sulfone plastic (SP) as specified in SpecificationD6394. The material shall be unreinforced polysulfone (group01, class 1, grade 2), or polyphenylsulfone (group 3, class 1,grade 2.) Material may also be an unreinforced blend of thesetwo materials with the polyphenylsulfone continuous ph
24、asecomprising 55 to 80% of the blend.5.1.2.3 Clean rework material of the same commercialdesignation, generated for the manufacturers own productionmay be used by the same manufacturer, provided the fittingsmeet all of the requirements of this specification. Reworkmaterial shall not be introduced at
25、 a ratio exceeding 25%.5.2 Reinforcing rings shall be made from PEX materialmeeting the performance requirements of 6.1.5.3 Stainless Steelfittings shall be made from materialmeeting the requirements of Specification A351/A351M, stain-less steel UNS No. J92800.5.4 Wrought CopperWrought copper fittin
26、gs shall bemade from material meeting the requirements of SpecificationB75 for one of the following coppers: copper UNS C10200,C10300, C10800, or C12200.6. General Requirements6.1 The following sections of Specification F877 constitutea part of this specification.6.1.1 Requirements,6.1.2 Test Method
27、s, and6.1.3 Retest and Rejection.6.2 In addition, when a section with a title identical to thatreferenced in 6.1, above, appears in this specification, itcontains additional requirements that supplement those appear-ing in F877.6.3 System Performance Requirements:6.3.1 GeneralAll performance tests s
28、hall be performed onassemblies of fittings, PEX reinforcing rings and PEX tubing.Fittings and reinforcing rings shall meet the material anddimensional requirements of this specification. PEX tubingshall meet the requirements of Specifications F876 and F877.Assembly of test specimens shall be in acco
29、rdance with 10.1.Each assembly shall contain at least two joints. Use separatesets of assemblies for each performance test requirement.6.3.2 DimensionsAny randomly selected fitting or fittingsand PEX reinforcing rings shall be used to determine dimen-sions. Measurements shall be made in accordance w
30、ith TestMethod D2122, except determine diameter by making mea-surements at four locations spaced at approximately 45 apartaround the circumference. Inspection and gauging of solderjoint ends shall be accordance with ANSI B16.18, ANSIB16.22, or Manufacturers Standardization Society SP-104.7. Performa
31、nce 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 rangefrom 926 to 940 kg/m3.4Available from NSF International, P.O. Box 130140, 789 N. Dixboro Rd., AnnArbor, MI 48113-0140, http:/www.nsf.org.5Availabl
32、e from Manufacturers Standardization Society of the Valve and FittingsIndustry (MSS), 127 Park St., NE, Vienna, VA 22180-4602, http:/www.mss-.F1960 14a27.1.2 Degree of Cross-linkingWhen tested in accordancewith 11.2, the degree of cross-linking for PEX reinforcing ringsshall be within the range from
33、 70 to 89% inclusive.7.1.3 Stabilizer Migration ResistanceWhen tested in ac-cordance with 11.3, the time t2, shall be at least 50% of thetime, t1.8. Dimensions8.1 Dimensions and TolerancesThe dimensions and toler-ances of fittings and PEX reinforcing rings shall be as shownin Figs. 1 and 2, and Fig.
34、 4 when measured in accordance with6.3.2.8.1.1 AlignmentThe maximum angular variation of anyopening shall not exceed 1 off the true centerline axis.8.1.2 Fittings with Solder Joint EndsSolder joint endsshall be in accordance with ANSI B16.22, ANSI B16.18 orMSS SP-104.8.1.3 Tapered Threaded EndsFitti
35、ng threads shall beright-hand conforming to ANSI B1.20.1. They shall be taperthreads (NPT).9. Workmanship, Finish, and Appearance9.1 The fittings shall be made from compounds that arehomogeneous throughout. The sealing surfaces of the insertshall be smooth and free of foreign material. The fitting w
36、allsshall be free of cracks, holes, blisters, voids, foreign inclusions,or other defects that are visible to the naked eye and that affectwall integrity.10. Assembly10.1 Cold Expansion JointsFittings shall be joined toPEX tubing by the contraction of the tubing and reinforcingring over the insert of
37、 the cold expansion fitting. Fittings andPEX reinforcing rings shall meet the dimensional and materialNOTE-BREAK ALL INTERNAL CORNERS .003ALL DIAMETER CONCENTRICITY .005 TIRBrass, Stainless Steel and Wrought Copper DimensionsSizeMin.WallMin.IDABCDEFGHI J38 in. 0.047 0.260 0.395 0.441 0.480 0.427 0.0
38、67 0.128 0.325 0.127 0.2860.375 0.433 0.472 0.407 0.051 0.108 0.051 0.305 0.107 0.26612 in. 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 in. 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
39、0.740 0.663 0.051 0.147 0.051 0.462 0.187 0.38434 in. 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 in. 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 0.2
40、65 0.541114 in. 0.075 0.960 1.159 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 in. 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 in. 0.095 1.550 1.800 1.95
41、8 2.079 1.891 0.093 0.467 1.137 0.521 1.0301.780 1.950 2.071 1.871 0.077 0.447 0.077 1.117 0.501 1.010212 in. 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 in. 0.115 2.410 2.720 2.910 3.080 2.910 0.180 0.710 1.810 0.720
42、1.6102.700 2.890 3.060 2.890 0.160 0.690 0.190 1.770 0.700 1.570FIG. 1 Brass and Stainless Steel and Wrought Copper Insert Dimensions and TolerancesF1960 14a3requirements of this standard. PEX tubing shall meet therequirements of Specification F876 or F877.10.2 Expansion ToolThe expansion tool shall
43、 expand thePEX tubing and reinforcing ring to a maximum inside diameterNOTE-BREAK ALL INTERNAL CORNERS .003ALL DIAMETER CONCENTRICITY .005 TIRSulfone DimensionsSizeMin.WallMin.IDABCDEFGHI JMax Flashand Mismatch38 in. 0.047 0.268 0.402 0.441 0.480 0.427 0.067 0.128 0.325 0.128 0.3060.382 0.433 0.472
44、0.407 0.051 0.108 0.051 0.305 0.108 0.266 0.00512 in. 0.057 0.385 0.540 0.579 0.618 0.565 0.067 0.128 0.404 0.167 0.3450.520 0.571 0.610 0.545 0.051 0.108 0.051 0.384 0.147 0.305 0.00558 in. 0.057 0.494 0.648 0.697 0.748 0.683 0.067 0.167 0.482 0.207 0.4240.628 0.689 0.740 0.663 0.051 0.147 0.051 0.
45、462 0.187 0.384 0.00534 in. 0.057 0.590 0.755 0.795 0.874 0.782 0.067 0.207 0.522 0.246 0.4630.735 0.787 0.866 0.762 0.051 0.187 0.051 0.502 0.226 0.423 0.0051 in. 0.072 0.788 0.992 1.032 1.110 0.998 0.067 0.246 0.640 0.286 0.5810.972 1.024 1.102 0.978 0.051 0.226 0.051 0.620 0.266 0.541 0.005114 in
46、. 0.075 0.970 1.159 1.276 1.362 1.237 0.080 0.299 0.781 0.348 0.7041.139 1.266 1.352 1.217 0.064 0.279 0.064 0.761 0.328 0.664 0.005112 in. 0.095 1.084 1.328 1.382 1.494 1.349 0.093 0.351 0.919 0.408 0.8251.308 1.374 1.486 1.329 0.077 0.331 0.077 0.899 0.388 0.785 0.0052 0.128 1.484 1.800 1.958 2.07
47、9 1.891 0.093 0.467 1.137 0.521 1.050 0.0051.780 1.950 2.071 1.871 0.077 0.447 0.077 1.117 0.501 1.010212 in. 0.175 1.850 2.280 2.430 2.585 2.430 0.155 0.610 1.520 0.610 1.350 0.0052.260 2.410 2.565 2.410 0.135 0.590 0.160 1.480 0.590 1.3103 in. 0.210 2.220 2.720 2.910 3.080 2.910 0.180 0.710 1.810
48、0.720 1.610 0.0052.700 2.890 3.060 2.890 0.160 0.690 0.190 1.770 0.700 1.570FIG. 2 Sulfone Insert Dimensions and TolerancesFIG. 3 Flash and Mismatch Created by Imperfection in Die Half InterfacesF1960 14a4as listed in Table 1. The expanded tubing shall be round toensure uniform contraction of the tu
49、bing around the coldexpansion fitting. The expansion tool shall be inspected forwear according to the manufacturers instructions.10.3 Procedure:10.3.1 Assembly of ConnectionsRefer to manufacturerswritten installation instructions.11. Reinforcing Ring Testing Methods11.1 DensityDetermine the density of the reinforcing ringmaterial in accordance with Test Method D1505, or TestMethod D792, using three specimens.11.2 Degree of Cross-LinkingDetermine the degree ofcross-linking in accordance with Test Method D2765, MethodB e
