1、Designation: F1974 09 (Reapproved 2015) An American National StandardStandard Specification forMetal Insert Fittings for Polyethylene/Aluminum/Polyethylene and Crosslinked Polyethylene/Aluminum/Crosslinked Polyethylene Composite Pressure Pipe1This standard is issued under the fixed designation F1974
2、; the number 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
3、.1. Scope*1.1 This specification covers metal insert fittings with splitring and compression nut (compression joint) and metal insertfittings with copper crimp rings (crimp joint) for four sizes ofcomposite pressure pipe. These fittings are intended for use in125 psi (690 kPa) cold- and hot-water di
4、stribution systemsoperating at temperatures up to and including 180F (82C).(When used in polyethylene/aluminum/polyethylene systemsthe maximum operating temperature is limited by the pipe to140F (60C) and where applicable 180F (82C). Includedare the requirements for materials, workmanship, burstpres
5、sure, sustained pressure, excessive temperature andpressure, temperature cycling tests, and markings to be used onthe fittings and rings. The fittings covered by this specificationare intended for use in potable water distribution systems forresidential and commercial applications, water service, un
6、der-ground irrigation systems, and radient panel heating systems,baseboard, snow- and ice-melt systems, and gases that arecompatible with the composite pipe and fittings.1.2 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversio
7、ns to SI units that are provided for information onlyand are not considered standard.NOTE 1The tables show the “nominal size” in millimetres with theinch size in parentheses. This exception is made to harmonize the“nominal size” with the two pipe standards, Specifications F1281 andF1282.1.3 The foll
8、owing precautionary caveat pertains only to thetest method portion, Section 9, of this specification.Thisstandard does not purport to address all of the safety concerns,if any, associated with its use. It is the responsibility of the userof this standard to establish appropriate safety and healthpra
9、ctices and determine the applicability of regulatory limita-tions prior to use.2. Referenced Documents2.1 ASTM Standards:2B16/B16M Specification for Free-Cutting Brass Rod, Barand Shapes for Use in Screw MachinesB36/B36M Specification for Brass Plate, Sheet, Strip, AndRolled BarB62 Specification for
10、 Composition Bronze or Ounce MetalCastingsB75/B75M Specification for Seamless Copper TubeB134/B134M Specification for Brass WireB140/B140M Specification for Copper-Zinc-Lead (RedBrass or Hardware Bronze) Rod, Bar, and ShapesB159/B159M Specification for Phosphor Bronze WireB283/B283M Specification fo
11、r Copper and Copper-AlloyDie Forgings (Hot-Pressed)B371/B371M Specification for Copper-Zinc-Silicon AlloyRodB584 Specification for Copper Alloy Sand Castings forGeneral ApplicationsD618 Practice for Conditioning Plastics for TestingD1598 Test Method for Time-to-Failure of Plastic PipeUnder Constant
12、Internal PressureD1599 Test Method for Resistance to Short-Time HydraulicPressure of Plastic Pipe, Tubing, and FittingsD1600 Terminology forAbbreviated Terms Relating to Plas-ticsD2122 Test Method for Determining Dimensions of Ther-moplastic Pipe and FittingsD2240 Test Method for Rubber PropertyDuro
13、meter Hard-nessE18 Test Methods for Rockwell Hardness of Metallic Ma-terialsF412 Terminology Relating to Plastic Piping SystemsF1281 Specification for Crosslinked Polyethylene/Aluminum/Crosslinked Polyethylene (PEX-AL-PEX)Pressure Pipe1This specification is under the jurisdiction of ASTM Committee F
14、17 on PlasticPiping Systems and is the direct responsibility of Subcommittee F17.10 on Fittings.Current edition approved Aug. 1, 2015. Published November 2015. Originallyapproved in 1999. Last previous edition approved in 2009 as F1974 - 09. DOI:10.1520/F1974-09R15.2For referenced ASTM standards, vi
15、sit 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.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,
16、100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and
17、 Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.1F1282 Specification for Polyethylene/Aluminum/Polyethylene (PE-AL-PE) Composite Pressure Pipe2.2 ANSI Standards:3B1.20.1 Pipe Threads General Purpose (Inch)B16.18 Cast Copper Alloy Solder Joint Press
18、ure FittingsB16.22 Wrought Copper and Copper Alloy Solder JointPressure Fittings2.3 Manufacturers Standardization Society Standard:4SP-104 Wrought Copper LW Solder Joint Pressure Fittings2.4 National Sanitation Foundation Standards:5Standard No. 14 for Plastic Piping Components and RelatedMaterialsS
19、tandard No. 61 for Drinking Water System Components -Health Effects3. Terminology3.1 Definitions are in accordance with Terminology F412and abbreviations are in accordance with Terminology D1600,unless otherwise indicated.4. Classification4.1 This specification covers two classes of fittings, fittin
20、gswith split ring and compression nut and fittings with a coppercrimp ring, suitable for use with four sizes of PEX/AL/PEX orPE/AL/PE pipe that meets the requirements of SpecificationsF1281 and F1282 respectively.5. Materials and Manufacture5.1 FittingsThe fittings shall be made from one of thefollo
21、wing metals.5.1.1 Wrought Copper FittingsWrought copper fittingsshall be made from material meeting the requirements ofSpecification B75/B75M for one of the following coppers:copper UNS Nos. C10200, C10300, C10800, C12000, orC12200.5.1.2 Cast Copper Alloy FittingsCast copper alloy fittingsshall be m
22、ade from material meeting the requirements ofSpecification B584, copper alloy UNS C84400, C85700,C85710, or Specification B62, copper alloy UNS C83600.When fittings are assembled with copper insert fittings, theinsert fittings shall comply with 5.1.1.5.1.3 Cast Copper Alloy ValvesCast copper alloy v
23、alvesshall be made from material meeting the requirements ofSpecification B62 copper alloy UNS No. C83600 or Specifi-cation B584 copper alloy UNS Nos. C83800, C87850, orC84400. When valves are assembled with copper insertfittings, the insert fittings shall comply with 5.1.1.5.1.4 Machined Brass Fitt
24、ingsMachined brass fittingsshall be made from material meeting the requirements ofSpecification B140/B140M CopperAlloy UNS No. C31400, orSpecification B16/B16M, Copper Alloy UNS No. C36000, orSpecification B62, Copper Alloy UNS No. C83600 or Speci-fication B36/B36M, Copper Alloy UNS No. C23000, orCo
25、pper Alloy UNS No. C27450, or Specification B371/B371M, Copper Alloy UNS No. C69300.5.1.5 Forged Brass FittingsForged brass fittings shall bemade from material meeting the requirements of SpecificationB283/B283M, CopperAlloy UNS No. C37700 or SpecificationB124, Alloy UNS No. C37700, Copper Alloy UNS
26、 No.C27450.5.2 Crimp RingsCrimp rings shall be made from copperUNS Nos. C10200, C12000, or C12200. The crimp rings shallhave a minimum allowable hardness of 35 and a maximumallowable hardness of 45 on the Rockwell 15T scale whenmeasured according to Test Methods E18.5.3 Split RingsSplit rings shall
27、be made from materialmeeting the requirements of Specification B140/B140M Cop-per Alloy UNS No. C31400, or Specification B16/B16Mcopper alloy UNS No. C36000, or Specification B159/B159MCopperAlloy UNS No. C51000 or Specification B134/B134M,UNS No. C27000 or Copper Alloy UNS No. C27450.5.4 The O-ring
28、s used on the brass fittings to make a staticseal shall be manufactured from ethylene propylene rubber(EPDM) or silicone rubber (Si), with a Shore A durometerbetween 60 and 70 when tested in accordance with ASTM TestMethod D2240.6. Performance Requirements6.1 GeneralAll performance tests shall be pe
29、rformed onassemblies of fittings and PEX/AL/PEX pipe. Fittings, splitrings and crimp rings shall meet the material and dimensionalrequirements of this standard. PEX/AL/PEX pipe shall meetthe requirements of Specification F1281. Assembly of testspecimens shall be in accordance with either 8.1 or 8.2,
30、asapplicable. Each assembly shall contain at least one joint. Useseparate sets of assemblies for each performance test require-ment.6.2 Hydrostatic BurstAssemblies shall meet the minimumhydrostatic burst requirements shown in Table 1 when tested inaccordance with 9.5.6.3 Hydrostatic Sustained Pressu
31、re StrengthPipe and fit-ting assemblies shall not separate or leak when tested inaccordance with 9.6.6.4 ThermocyclingAssemblies shall not leak or separatewhen thermocycled 1000 cycles between the temperatures of60F (16C) and 180F (82C) in accordance with 9.7.3Available from American National Standa
32、rds Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.4Available from Manufacturers Standardization Society of the Valve and FittingsIndustry (MSS), 127 Park St., NE, Vienna, VA 22180-4602, http:/www.mss-hq.org.5Available from NSF International, P.O. Box 130140, 789
33、N. Dixboro Rd., AnnArbor, MI 48105, http:/www.nsf.org.TABLE 1 Minimum Hydrostatic Burst Strength Requirements forFitting and PEX/AL/PEX Pipe AssembliesNominal PipeSize,mm (in.)Minimum Burst Pressuresat Different Temperaturespsi at73.4F(kPa at23C)psi at180F(kPa at82.2C)1216 (12) 870 (6000) 580 (4000)
34、1620 (58) 725 (5000) 550 (3800)2025 (34) 580 (4000) 465 (3200)2532 (1) 580 (4000) 465 (3200)F1974 09 (2015)26.5 Excessive Temperature-Pressure CapabilityAssemblies shall not leak or separate when tested in accor-dance with 9.8.7. Dimensions7.1 Dimensions and TolerancesThe dimensions and toler-ances
35、of fittings, split rings and crimp rings shall be as shownin Tables 2-4 when measured in accordance with 9.4.7.1.1 AlignmentThe maximum angular variation of anyopening shall not exceed 1 off the true centerline axis.7.1.2 Fittings with Solder Joint EndsSolder joint endsshall be in accordance with AN
36、SI B16.22, ANSI B16.18, orMSS SP-104.7.1.3 Tapered Threaded EndsFitting threads shall beright-hand conforming to ANSI/ASME B1.20.1. They shall betaper threads (NPT).8. Workmanship, Finish, and Appearance8.1 The sealing surfaces of the insert shall be smooth andfree of foreign material. The fitting w
37、alls shall be free ofcracks, holes, blisters, voids, foreign inclusions or other defectsthat are visible to the naked eye and that affect the wallintegrity.8.1.1 AssemblyInsert fittings shall be joined to PE/AL/PEor PEX/AL/PEX pipe by the use of either a crimp joint or acompression joint.8.1.2 Crimp
38、 JointsCrimp insert fittings shall be joined toPE/AL/PE or PEX/AL/PEX pipe by the compression of acopper crimp ring around the outer circumference of the pipeforcing the pipe material into annular spaces formed by ribs onthe fitting. The dimensions and out-of-roundness of the crimpring after it has
39、been crimped shall be in accordance with Table5.8.1.2.1 Crimping ProcedureTo affix the insert fitting tothe pipe with the crimp ring, the crimping procedure shall be asfollows: slide the crimp ring onto the pipe, insert the ribbed endof the fitting into the end of the pipe until the pipe contacts th
40、eshoulder of the fitting or pipe stop. The crimp ring shall then bepositioned on the pipe so the edge of the crimp ring is18 to14in. (3.2 to 6.4 mm) from the end of the pipe. The jaws of thecrimping tool shall be centered over the crimp ring and the toolshall be held so that the crimping jaws are pe
41、rpendicular to theaxis of the barb. The jaws of the crimping tool shall be closedaround the crimp ring, compressing the crimp ring onto thepipe. The crimp ring shall not be crimped more than once. EachTABLE 2 Crimp Joint Fitting DimensionsDimension 121612 in.162058 in.202534 in.25321in.A Male and fe
42、male copper solder on NPT thread ends refer to clauses 7.1.2 and 7.1.3. This end of the fitting may also be a part of acoupling tee, 90 elbow or other adapter.id 0.334 in.0.008 in.0.452 in.0.008 in.0.610 in.0.008 in.0.807 in.0.008 in.B1 0.591 in.0.025 in.0.591 in.0.025 in.0.591 in.0.025 in.0.591 in.
43、0.025 in.B2 0.650 in.0.050 in.0.650 in.0.050 in.0.650 in.0.050 in.0.650 in.0.050 in.C 0.482 in.0.004 in.0.620 in.0.004 in.0.781 in.0.004 in.0.998 in.0.004 in.D(bottom of groove)0.406 in.0.004 in.0.543 in.0.004 in.0.701 in.0.004 in.0.902 in.0.004 in.E 0.067 in.0.005 in.0.067 in.0.005 in.0.067 in.0.00
44、5 in.0.079 in.0.005 in.F 0.059 in.0.003 in.0.059 in.0.003 in.0.059 in.0.003 in.0.071 in.0.003 in.G 0.315 in.0.008 in.0.409 in.0.008 in.0.567 in.0.008 in.0.764 in.0.008 in.F1974 09 (2015)3crimp shall be checked to determine conformance to the aftercrimped dimensional requirements of Table 5.8.2 Compr
45、ession JointsCompression insert fittings shallbe joined to PE/AL/PE or PEX/AL/PEX pipe through thecompression of a split ring, by an compression nut, around theouter circumference of the pipe forcing the pipe material intothe annular space formed by ribs on the fitting.8.2.1 Compression Jointing Pro
46、cedureTo affix the insertfitting to the pipe with the split ring, and compression nut theprocedure shall be as follows: slide the compression nut andTABLE 3 Compression Joint Fitting DimensionsDimension 121612 in.162058 in.202534 in.25321in.A Male and Female copper solder on NPT thread ends refer to
47、 clauses 7.1.2 and 7.1.3. This end of the fitting may also be a part of a couplingtee, 90 elbow or other adapter.id 0.334 in.0.008 in.0.452 in.0.008 in.0.610 in.0.008 in.0.807 in.0.008 in.B 0.370 in.0.050 in.0.370 in.0.050 in.0.370 in.0.050 in.0.472 in.0.050 in.C 0.482 in.0.004 in.0.620 in.0.004 in.
48、0.781 in.0.004 in.0.998 in.0.004 in.D 0.406 in.0.004 in.0.543 in.0.004 in.0.701 in.0.004 in.0.902 in.0.004 in.E 0.067 in.0.005 in.0.067 in.0.005 in.0.067 in.0.005 in.0.079 in.0.005 in.F 0.059 in.0.003 in.0.059 in.0.003 in.0.059 in.0.003 in.0.071 in.0.003 in.G 0.315 in.0.008 in.0.409 in.0.008 in.0.56
49、7 in.0.008 in.0.764 in.0.008 in.H 0.157 in.0.008 in.0.177 in.0.008 in.0.177 in.0.008 in.0.197 in.0.008 in.I 0.638 in.0.008 in.0.795 in.0.008 in.0.992 in.0.008 in.1.276 in.0.008 in.J 0.650 in.0.008 in.0.815 in.0.008 in.1.024 in.0.008 in.1.291 in.0.008 in.TABLE 4 Copper Crimp Ring DimensionsDimension 121612 in.162058 in.202534 in.25321in.AInside Diameter0.6520.0020.8120.0021.0090.0021.2840.002BWall Thickness0.0520.0020.0500.0021.0490.0021.0490.002C
