1、Designation: F1960 111 F1960 12 An American National StandardStandard 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 ind
2、icates 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 NOTEFigures 1 and 2 and footnote 1 were editorially
3、 updated in July 2011.1. Scope*1.1 This specification covers cold expansion fittings and cross-linked (PEX) reinforcing rings for use with cross-linkedpolyethylene (PEX) plastic tubing in 38,12,58,34, 1, 1-14, 112 in. and 2 in. nominal diameters that meet the requirements ofSpecifications F876 and F
4、877. These fittings are intended for use in 100 psi (690 kPa) cold- and hot-water distribution systemsoperating 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, dim
5、ensions, and markings to be used on the fittingcomponents. The components covered by this specification 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 i
6、n inch-pound units are to be regarded as the standard. The values given in parentheses are mathematicalconversions to SI units which 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
7、 use. It is the responsibilityof the user of this standard to establish appropriate safety and health 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
8、PartsB16/B16M Specification for Free-Cutting Brass Rod, Bar and Shapes for Use in Screw MachinesB140/B140M Specification for Copper-Zinc-Lead (Red Brass or Hardware Bronze) Rod, Bar, and ShapesB62 Specification for Composition Bronze or Ounce Metal CastingsB75 Specification for Seamless Copper TubeB
9、283 Specification for Copper and Copper-Alloy Die Forgings (Hot-Pressed)B371/B371M Specification for Copper-Zinc-Silicon Alloy RodB584 Specification for Copper Alloy Sand Castings for General ApplicationsB967/B967M Specification for Copper-Zinc-Tin-Bismuth Alloy Rod, Bar and WireD792 Test Methods fo
10、r 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 Determining Dimensions of Thermoplastic Pipe and FittingsD2765 Tes
11、t 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 Terminology Relating to Plastic Piping SystemsF876 Specifica
12、tion 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 the direct responsibility of Subcommittee F17.10 on Fittin
13、gsCurrent edition approved June 1, 2011Aug. 1, 2012. Published June 2011December 2012. Originally approved in 1999. Last previous edition approved in 20102011 asF1960 10.F1960 111. DOI: 10.1520/F1960-11E01.10.1520/F1960-12.2 For referenced ASTM standards, visit the ASTM website, www.astm.org, or con
14、tact ASTM 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 ASTM standard an indication of what changes have b
15、een 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 published by ASTM is to be considered the official docume
16、nt.*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 Copper Alloy Solder Joint Pressure FittingsB16.22 Wro
17、ught 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 Pressure Fittings5
18、3. 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 expansion fittings.4.
19、 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 fittings shall be made from one of the following mat
20、erials:5.1.1 Brass:5.1.1.1 Machined BrassMachined brass fittings shall be made from material meeting the requirements of SpecificationB140/B140M Copper Alloy UNS No. C31400, or Specification B16/B16M copper alloy UNS No. C36000, or SpecificationB371/B371M Copper Alloy UNS No. C69300, or Standard EN
21、12164, copper alloy CW614N, or Copper Alloy UNS No. C35330,Copper Alloy UNS No. C27450 or Specification B967/B967M copper alloy UNS No. C49260 or C49340.5.1.1.2 Forged BrassForged brass fittings shall be made from material meeting the requirements of Specification B283,Copper Alloy UNS Nos. C27450,
22、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 Specification B62, Copper Alloy UNS No
23、.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 polymers shall consist of polysulfone and gl
24、ass fiber and 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 po
25、lyphenylsulfone (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
26、may beused 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
27、 shall be made from material meeting the requirements of Specification A351/A351M, stainless steelUNS No. J92800.5.4 Wrought CopperWrought copper fittings shall be made from material meeting the requirements of Specification B75 forone of the following coppers: copper UNS C10200, C10300, C10800, or
28、C12200.6. General Requirements6.1 The following sections of Specification F877 constitute a part of this specification.6.1.1 Requirements,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
29、, 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 1226.1.2 Test Methods, and6.1.3 Retest and Rejection.6.2 I
30、n addition, 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 fit
31、tings, 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 assemblyshal
32、l contain 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 deter
33、mine 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 Reinforcin
34、g 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 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 8
35、9% 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 me
36、asured in accordance with 6.3.2.NOTE-BREAK ALL INTERNAL CORNERS .003.015ALL DIAMETER CONCENTRICITY .005 TIRBrass, Stainless Steel and Wrought Copper DimensionsSize Min.Wall Min.ID A B C D E F G H I J38 in. 0.047 0.260 0.375 0.433 0.472 0.407 0.051 0.108 0.051 0.305 0.107 0.2660.395 0.441 0.480 0.427
37、 0.067 0.128 0.067 0.325 0.127 0.28612 in. 0.057 0.378 0.513 0.571 0.610 0.545 0.051 0.108 0.051 0.384 0.147 0.3050.533 0.579 0.618 0.565 0.067 0.128 0.067 0.404 0.167 0.32558 in. 0.057 0.500 0.635 0.689 0.740 0.663 0.051 0.147 0.051 0.462 0.187 0.3840.655 0.697 0.748 0.683 0.067 0.167 0.067 0.482 0
38、.207 0.40434 in. 0.057 0.595 0.728 0.787 0.866 0.762 0.051 0.187 0.051 0.502 0.226 0.4230.748 0.795 0.874 0.782 0.067 0.207 0.067 0.522 0.246 0.4431 in. 0.072 0.795 0.965 1.024 1.102 0.978 0.051 0.226 0.051 0.620 0.265 0.5410.985 1.032 1.110 0.998 0.067 0.246 0.067 0.640 0.285 0.5611-14 in. 0.075 0.
39、960 1.139 1.266 1.352 1.217 0.064 0.279 0.064 0.761 0.328 0.6641.159 1.276 1.362 1.237 0.080 0.299 0.080 0.781 0.348 0.6841-12 in. 0.095 1.084 1.304 1.374 1.486 1.329 0.077 0.331 0.077 0.899 0.388 0.7851.324 1.382 1.494 1.349 0.093 0.351 0.093 0.919 0.408 0.8052 in. 0.095 1.550 1.800 1.958 2.079 1.8
40、91 0.093 0.467 0.093 1.137 0.521 1.0301.780 1.950 2.071 1.871 0.077 0.447 0.077 1.117 0.501 1.010F1960 1238.1.1 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 ANS
41、I 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).FIG. 1 Brass and Stainless Steel and Wrought Copper Insert Dimensions and TolerancesNOTE-BREAK ALL INTERNAL CORNERS .003.015ALL DIAMETER CONC
42、ENTRICITY .005 TIRSulfone DimensionsSize Min.Wall Min.ID A B C D E F G H I J Max Flashand Mismatch38 in. 0.047 0.268 0.382 0.433 0.472 0.407 0.051 0.108 0.051 0.305 0.108 0.266 0.0050.402 0.441 0.480 0.427 0.067 0.128 0.067 0.325 0.128 0.30612 in. 0.057 0.385 0.520 0.571 0.610 0.545 0.051 0.108 0.05
43、1 0.384 0.147 0.305 0.0050.540 0.579 0.618 0.565 0.067 0.128 0.067 0.404 0.167 0.34558 in. 0.057 0.494 0.628 0.689 0.740 0.663 0.051 0.147 0.051 0.462 0.187 0.384 0.0050.648 0.697 0.748 0.683 0.067 0.167 0.067 0.482 0.207 0.42434 in. 0.057 0.590 0.735 0.787 0.866 0.762 0.051 0.187 0.051 0.502 0.226
44、0.423 0.0050.755 0.795 0.874 0.782 0.067 0.207 0.067 0.522 0.246 0.4631 in. 0.072 0.788 0.972 1.024 1.102 0.978 0.051 0.226 0.051 0.620 0.266 0.541 0.0050.992 1.032 1.110 0.998 0.067 0.246 0.067 0.640 0.286 0.5811-14 in. 0.075 0.970 1.139 1.266 1.352 1.217 0.064 0.279 0.064 0.761 0.328 0.664 0.0051.
45、159 1.276 1.362 1.237 0.080 0.299 0.080 0.781 0.348 0.7041-12 in. 0.095 1.084 1.308 1.374 1.486 1.329 0.077 0.331 0.077 0.899 0.388 0.785 0.0051.328 1.382 1.494 1.349 0.093 0.351 0.093 0.919 0.408 0.8252 0.128 1.484 1.800 1.958 2.079 1.891 0.093 0.467 0.093 1.137 0.521 1.050 0.0051.780 1.950 2.071 1
46、.871 0.077 0.447 0.077 1.117 0.501 1.010FIG. 2 Sulfone Insert Dimensions and TolerancesFIG. 3 Flash and Mismatch Created by Imperfection in Die Half InterfacesF1960 1249. Workmanship, Finish, and Appearance9.1 The fittings shall be made from compounds that are homogeneous throughout. The sealing sur
47、faces of the insert shall besmooth and free of foreign material. The fitting walls shall 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 P
48、EX tubing by the contraction of the tubing and reinforcing ring overthe insert of the 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 T
49、oolThe expansion tool shall expand the PEX tubing and reinforcing ring to a maximum inside 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 ConnectionsAffix the cold expansion fitting to the PEX tubing by sliding the PEX reinforcing ring ontothe tubing and positioning the ring so that the end of the
