1、Designation: F1960 12F1960 14 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 indic
2、ates 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*1.1 This specification covers cold expansion f
3、ittings and cross-linked (PEX) reinforcing rings for use with cross-linkedpolyethylene (PEX) plastic tubing in 38, 12, 58, 34, 1, 1-114, 112 in. 2, 214, and 23 in. nominal diameters that meet the requirementsof Specifications F876 and F877. These fittings are intended for use in 100 psi (690 kPa) co
4、ld- 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, dimensions, and markings to be used on the fittingcomponents. The c
5、omponents 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 in inch-pound units are to be regarded as the standard. The value
6、s given in parentheses are mathematicalconversions to SI units whichthat 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 t
7、o 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 PartsB16/B16M Specification for Free-Cutting Brass Rod, Bar
8、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 TubeB283 Specification for Copper and Copper-Alloy Die Forgings (
9、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 for Density and Specific Gravity (Relative Density) of Plastic
10、s 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 Test Methods for Determination of Gel Content and Swell Ratio o
11、f 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 Specification for Crosslinked Polyethylene (PEX) TubingF877 Specifica
12、tion 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 FittingsCurrent edition approved Aug. 1, 2012Aug. 1, 2014. Publish
13、ed December 2012October 2014. Originally approved in 1999. Last previous edition approved in 20112012as F1960 11F1960 12.1. DOI: 10.1520/F1960-12.10.1520/F1960-14.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book
14、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 been made to the previous version. Becauseit may not be technica
15、lly 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 document.*A Summary of Changes section appears at the end of this sta
16、ndardCopyright 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 Wrought Copper and Copper Alloy Solder Joint Pressure Fittings2.3
17、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 Fittings53. Terminology3.1 Definitions:3.1.1 Definitions are in accordan
18、ce 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. Classification4.1 This specification covers one class of cold
19、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 materials:5.1.1 Brass:5.1.1.1 Machined BrassMachined brass fitting
20、s 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 CopperAlloy UNS No. C69300, or Standard EN 12164, copper alloy CW614N, or CopperAlloy UNS No. C35330,Copper
21、 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, C35330, C36500, C37700, C46400, C48600, C49260, C49340, or C69300
22、.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 Standard EN 1982, copper alloy EN Symbol CuSn4Zn6Pb3C
23、.5.1.2 Sulfone: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 and meet thefollowing line call out for additio
24、nal 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 polyphenylsulfone (group 3, class 1, grade2.) Material may
25、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 by the same manufacturer, provided the fitting
26、s 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 of
27、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 C12200.6. General Requirements6.1 The following sections
28、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, P.O. Box 130140, 789 N. Dixboro Rd., Ann Arbor, MI 4811
29、3-0140, 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 1426.1.2 Test Methods, and6.1.3 Retest and Rejection.6.2 In addition, when a section with a title identical to that
30、 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 fittings, PEX reinforcing rings and PEX tubing.Fittings and
31、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 contain at least two joints. Use separate sets of assem
32、blies 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 determine diameter by making measurements at fourlocations spa
33、ced 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 Rings:7.1.1 DensityWhen determined in accordance with 1
34、1.1, 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% inclusive.7.1.3 Stabilizer Migration ResistanceWhen te
35、sted 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 measured in accordance with 6.3.2.8.1.1 AlignmentThe maxim
36、um 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 threads shall be right-hand conforming to ANSI B1.20.1. They
37、 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 shall be free of cracks, holes, blisters, voids, foreign
38、 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 cold expansion fitting. Fittings and PEX reinforcing
39、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 inside diameter aslisted in Table 1. The expanded tubin
40、g 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
41、 reinforcing ring ontothe tubing and positioning the ring so that the end of the ring overhangs the end of the tubing a maximum of Refer to manufacturerswritten installation instructions.116 in. (1.6 mm). Insert the expansion head into the tubing as far as it will go. Holding the tool sothat the cen
42、terline of the expansion head is approximately in line with the centerline of the tubing, operate the tool until the tubingand reinforcing ring are fully expanded. After completing the expansion process, remove the expansion tool and insert the coldexpansion fitting until the tubing hits the shoulde
43、r of the fitting or the tube stop. Hold the fitting in place until the tubing contractssufficiently to hold the fitting in place.10.3.2 Improper ConnectionsIf the insert fitting was not fully inserted to its shoulder or tube stop or the reinforcing ring wasnot placed in accordance with 10.3.1, remov
44、e the tubing and ring from the fitting and trim 2 in. from the tubing. Using a newreinforcing ring, repeat the procedure in 10.3.1.11. Reinforcing Ring Testing Methods11.1 DensityDetermine the density of the reinforcing ring material in accordance with Test Method D1505, or Test MethodD792, using th
45、ree specimens.F1960 143NOTE-BREAK ALL INTERNAL CORNERS .003.015.003 minALL 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
46、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.
47、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 0.9
48、60 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 1.89
49、1 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 1.010*Maximum width of dimension “G” allowed to transition to surface of dimension “B”Brass, Stainless Steel and Wrought Copper DimensionsSize Min.Wall Min.ID A B C D E F G H I Jminmaxminmaxminmaxminmaxminmaxminmax minminmaxminmaxminmax38 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 0.107 0.26612 in. 0.057 0.378 0.533 0.579 0.618 0.565 0.067 0.128 . 0.404 0.
