ASTM F1960-2015 Standard Specification for Cold Expansion Fittings with PEX Reinforcing Rings for Use with Cross-linked Polyethylene (PEX) Tubing《交联聚乙烯 (PEX) 管件用带PEX加固环的冷膨胀配件的标准规格》.pdf

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1、Designation: F1960 14aF1960 15Standard 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 adop

2、tion 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*1.1 This specification covers cold expansion fittings and cross-linked (PEX

3、) reinforcing rings for use with cross-linkedpolyethylene (PEX) plastic tubing in 38, 12, 58, 34, 1, 114, 112 in. 2, 212, and 3 in. nominal diameters that meet the requirementsof Specifications F876 and F877. These fittings are intended for use in 100 psi (690 kPa) cold- and hot-water distribution s

4、ystemsoperating at temperatures up to and including 180F (82C). The system is comprised of a PEX reinforcing ring and a coldexpansion fitting. Included are the requirements for materials, workmanship, dimensions, and markings to be used on the fittingcomponents. The components covered by this specif

5、ication are intended for 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 mathemati

6、calconversions to SI units 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 and health

7、 practices and determine the applicability of regulatorylimitations prior to use.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 MachinesB140/

8、B140M Specification for Copper-Zinc-Lead (Red Brass or Hardware Bronze) Rod, Bar, and ShapesB62 Specification for Composition Bronze or Ounce Metal CastingsB75B75/B75M Specification for Seamless Copper TubeB283B283/B283M Specification for Copper and Copper-Alloy Die Forgings (Hot-Pressed)B371/B371M

9、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 Copper-Z

10、inc-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 Determi

11、ning Dimensions of Thermoplastic Pipe and FittingsD2765 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 Specification for Sulfone Plastics (SP)F412 T

12、erminology Relating to Plastic Piping SystemsF876 Specification for Crosslinked Polyethylene (PEX) TubingF877 Specification for Crosslinked Polyethylene (PEX) Hot- and Cold-Water Distribution Systems1 This specification is under the jurisdiction of ASTM Committee F17 on Plastic Piping Systems and is

13、 the direct responsibility of Subcommittee F17.10 on FittingsCurrent edition approved Nov. 15, 2014April 1, 2015. Published January 2015May 2015. Originally approved in 1999. Last previous edition approved in 2014 asF1960 14.F1960 14a. DOI: 10.1520/F1960-14A.10.1520/F1960-15.2 For referencedASTM sta

14、ndards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, 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

15、ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as publish

16、ed by ASTM is to be considered the official document.*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 States12.2 ANSI Standard:B1.20 Pipe Threads General Purpose3B16.18 Cast Cop

17、per Alloy Solder Joint Pressure 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-

18、104 Wrought Copper Solder Joint 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 contr

19、action force around the cold expansion 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 Specifications F876 and F877.5. Materials and Manufacture5.1 Cold expansion fi

20、ttings 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 C36000ASTM B140/B140M UNS C31400ASTM B371/B371M UNS C69300S

21、tandard 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 SpecificationB283B283/B283M, Copper Alloy UNS Nos. C27450, C27451, C27453, C35330, C3

22、6500, 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 Specification B62, Copper Alloy UNS No.C83600, or

23、 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 polymers shall consist of polysulfone and glass fiber a

24、nd meet thefollowing line call out for additional properties (SP0113G20A30430).5.1.2.2 Unreinforced Sulfone Plastic (SP)Fittings shall be molded from sulfone plastic (SP) as specified in SpecificationD6394. The material shall be unreinforced polysulfone (group 01, class 1, grade 2), or polyphenylsul

25、fone (group 3, class 1, grade2.) Material may also be an unreinforced blend of these two materials with the polyphenylsulfone continuous phase comprising55 to 80% of the blend.5.1.2.3 Clean rework material of the same commercial designation, generated for the manufacturers own production may beused

26、by the same manufacturer, provided the fittings 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 m

27、ade from material meeting the requirements of Specification A351/A351M, stainless steelUNS No. J92800.3 Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http:/www.ansi.org4 Available from NSF International, P.O. Box 130140, 789 N. Dixboro Rd

28、., 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 1525.4 Wrought CopperWrought copper fittings shall be made from material meeting the requireme

29、nts of SpecificationB75B75/B75M for one of the following coppers: copper UNS C10200, C10300, C10800, or C12200.6. General Requirements6.1 The following sections of Specification F877 constitute a part of this specification.6.1.1 Requirements,6.1.2 Test Methods, and6.1.3 Retest and Rejection.6.2 In a

30、ddition, when a section with a title identical to that referenced in 6.1, above, appears in this specification, it containsadditional requirements that supplement those appearing in F877.6.3 System Performance Requirements:6.3.1 GeneralAll performance tests shall be performed on assemblies of fittin

31、gs, PEX reinforcing rings and PEX tubing.Fittings and reinforcing rings shall meet the material and dimensional requirements of this specification. PEX tubing shall meetthe requirements of Specifications F876 and F877. Assembly of test specimens shall be in accordance with 10.1. Each assemblyshall c

32、ontain at least two joints. Use separate sets of assemblies for each performance test requirement.6.3.2 DimensionsAny randomly selected fitting or fittings and PEX reinforcing rings shall be used to determine dimensions.Measurements shall be made in accordance with Test Method D2122, except determin

33、e diameter by making measurements at fourlocations spaced at approximately 45 apart around the circumference. Inspection and gauging of solder joint ends shall beaccordance with ANSI B16.18, ANSI B16.22, or Manufacturers Standardization Society SP-104.7. Performance Requirements7.1 PEX Reinforcing R

34、ings: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 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%

35、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 Dimensions and TolerancesThe dimensions and tolerances of fittings and PEX reinforcing rings shall be as shown in Figs.1 and 2, and Fig. 4 when meas

36、ured in accordance with 6.3.2.8.1.1 AlignmentThe maximum angular variation of any opening shall not exceed 1 off the true centerline axis.8.1.2 Fittings with 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 thread

37、s shall be right-hand conforming to ANSI B1.20.1. They shall be taper threads(NPT).9. 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 sh

38、all be free of cracks, holes, blisters, voids, foreign inclusions, 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 tubing by the contraction of the tubing and reinforcing ring overthe insert of the

39、 cold expansion fitting. Fittings and PEX reinforcing rings shall meet the dimensional and material requirementsof this standard. PEX tubing shall meet the requirements of Specification F876 or F877.10.2 Expansion ToolThe expansion tool shall expand the PEX tubing and reinforcing ring to a maximum i

40、nside diameter aslisted in Table 1. The expanded tubing shall be round to ensure uniform contraction of the tubing around the cold expansion fitting.The expansion tool shall be inspected for wear according to the manufacturers instructions.10.3 Procedure:10.3.1 Assembly of ConnectionsRefer to manufa

41、cturers written installation instructions.11. Reinforcing Ring Testing Methods11.1 DensityDetermine the density of the reinforcing ring material in accordance with Test Method D1505, or Test MethodD792, using three specimens.11.2 Degree of Cross-LinkingDetermine the degree of cross-linking in accord

42、ance with Test Method D2765, Method B exceptfor the following: during sample preparation, place a reinforcing ring in a lathe with automatic feeding. Shave a strip approximatelyF1960 153NOTE-BREAK ALL INTERNAL CORNERS .003 minALL DIAMETER CONCENTRICITY .005 TIR*Maximum width of dimension “G” allowed

43、 to transition to surface of dimension “B”Brass, Stainless Steel and Wrought Copper DimensionsSize Min.Wall Min.IDAmaxminBmaxminCmaxminDmaxminEmaxminFmaxminGminHmaxminImaxminJmaxmin38 in. 0.047 0.260 0.395 0.441 0.480 0.427 0.067 0.128 0.325 0.127 0.2860.375 0.433 0.472 0.407 0.051 0.108 0.051 0.305

44、 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 0.740 0.663 0.051 0.147 0.051 0.462 0.187 0.38434 in. 0.057 0.595 0.748 0

45、.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 0.265 0.541114 in. 0.075 0.960 1.159 1.276 1.362 1.237 0.080 0.299 0.781 0.3

46、48 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 1.958 2.079 1.891 0.093 0.467 1.137 0.521 1.0301.780 1.950 2.071 1.871 0.077

47、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 1.6102.700 2.890 3.060 2.890 0.160 0.690 0.190 1.770 0.700 1.570F1960 154

48、0.004 in.-thick that consists of the full thickness of the ring. For the purpose of this specification, the degree of cross-linking (V)is defined as 100 % minus the extract percent = V.11.3 Stabilizer Migration ResistanceCut two 0.4-in. (10-mm) long samples from the reinforcing ring. Store one of th

49、e samplescovered at room temperature for 1000 h. Place the other sample in a round-bottom flask with large-mouth, ground-glass or corkjoint. The flask size shall be 500 mL for each test sample. Fill with distilled water. Put the flask in a heating mantle to heat theflask to boil water. Put a reflux condenser with ground-glass or cork joint to fit into the flask. Boil for 1000 h but change the distilledwater at even intervals two times per week. Place the two samples hanging on a thin steel rod (approximately 0.1-in. (2.5

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