1、Designation: F1974 09An 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; the number immedi
2、ately 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.1. Scope*1.1 This
3、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 distribution systemso
4、perating at temperatures up to and including 180 F (82 C).(When used in polyethylene/aluminum/polyethylene systemsthe maximum operating temperature is limited by the pipe to140 F (60 C) and where applicable 180F (82C). Includedare the requirements for materials, workmanship, burst pres-sure, sustain
5、ed pressure, excessive temperature and pressure,temperature cycling tests, and markings to be used on thefittings and rings. The fittings covered by this specification areintended for use in potable water distribution systems forresidential and commercial applications, water service, under-ground ir
6、rigation 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 mathematicalconversions to SI unit
7、s 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, F1281 and F1282.1.3 The following precautionary caveat
8、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 healthpractices and determine the a
9、pplicability 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 Composition Bronze or Oun
10、ce MetalCastingsB75 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 Specification for Copper and Copper-Alloy Die Forg-in
11、gs (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 Internal PressureD1599 Test Method
12、for Resistance to Short-Time HydraulicPressure of Plastic Pipe, Tubing, and FittingsD1600 Terminology for Abbreviated Terms Relating toPlasticsD2122 Test Method for Determining Dimensions of Ther-moplastic Pipe and FittingsD2240 Test Method for Rubber PropertyDurometerHardnessE18 Test Methods for Ro
13、ckwell Hardness of Metallic Ma-terialsF412 Terminology Relating to Plastic Piping SystemsF1281 Specification for Crosslinked Polyethylene/1This specification is under the jurisdiction of ASTM Committee F17 on PlasticPiping Systems and is the direct responsibility of Subcommittee F17.10 on Fittings.C
14、urrent edition approved Dec. 1, 2009. Published January 2010. Originallyapproved in 1999. Last previous edition approved in 2008 as F1974 - 08. DOI:10.1520/F1974-09.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Bo
15、ok of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.Aluminum/Crossl
16、inked Polyethylene (PEX-AL-PEX)Pressure PipeF1282 Specification for Polyethylene/Aluminum/Polyethylene (PE-AL-PE) Composite Pressure Pipe2.2 ANSI Standards:B1.20.1 Pipe Threads General Purpose (Inch)3B16.18 Cast Copper Alloy Solder Joint Pressure Fittings3B16.22 Wrought Copper and Copper Alloy Solde
17、r JointPressure Fittings32.3 Manufacturers Standardization Society Standard:SP-104 Wrought Copper LW Solder Joint Pressure Fittings42.4 National Sanitation Foundation Standards:Standard No. 14 for Plastic Piping Components and RelatedMaterials4Standard No. 61 for Drinking Water System Components -He
18、alth Effects43. 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, fittingswith split ring and compression nut and fittings wit
19、h 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 thefollowing metals.5.1.1 Wrought Copper FittingsWrought coppe
20、r fittingsshall be made from material meeting the requirements ofSpecification B75 for one of the following coppers: copperUNS Nos. C10200, C10300, C10800, C12000, or C12200.5.1.2 Cast Copper Alloy FittingsCast copper alloy fittingsshall be made from material meeting the requirements ofSpecification
21、 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 valvesshall be made from material meeting the requirements
22、ofSpecification B62 copper alloy UNS No. C83600 or Specifi-cation B584 copper alloy UNS Nos. C83800, C87850, orC84400. When valves are assembled with copper insert fit-tings, the insert fittings shall comply with 5.1.1.5.1.4 Machined Brass FittingsMachined brass fittingsshall be made from material m
23、eeting 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, orCopper Alloy UNS No. C27450, or Specification B371/B371M,
24、Copper Alloy UNS No. C69300.5.1.5 Forged Brass FittingsForged brass fittings shall bemade from material meeting the requirements of SpecificationB283, Copper Alloy UNS No. C37700 or Specification B124,Alloy UNS No. C37700, Copper Alloy UNS No. C27450.5.2 Crimp RingsCrimp rings shall be made from cop
25、perUNS 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 be made from materialmeeting the requirements of Specificati
26、on 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-rings used on the brass fittings to make a staticseal shall be m
27、anufactured from ethylene propylene rubber(EPDM) or silicone rubber (Si), with a Shore A durometerbetween 60 and 70 when tested in accordance with ASTMStandard D2240.6. Performance Requirements6.1 GeneralAll performance tests shall be performed onassemblies of fittings and PEX/AL/PEX pipe. Fittings,
28、 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,asapplicable. Each assembly shall contain at least one joint. U
29、seseparate sets of assemblies for each performance test require-ment.6.2 Hydrostatic BurstAssemblies shall meet the mini-mum hydrostatic burst requirements shown in Table 1 whentested in accordance with 9.5.6.3 Hydrostatic Sustained Pressure StrengthPipe and fit-ting assemblies shall not separate or
30、 leak when tested inaccordance with 9.6.6.4 ThermocyclingAssemblies shall not leak or separatewhen thermocycled 1000 cycles between the temperatures of60 F (16 C) and 180 F (82 C) in accordance with 9.7.6.5 Excessive Temperature-Pressure CapabilityAssemblies shall not leak or separate when tested in
31、 accor-dance with 9.8.3Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.4Available from NSF International, P.O. Box 130140, 789 N. Dixboro Rd., AnnArbor, MI 48113-0140, http:/www.nsf.org.TABLE 1 Minimum Hydrostatic Burst St
32、rength Requirements forFitting and PEX/AL/PEX Pipe AssembliesNominal Pipe Size,mm (in.)Minimum Burst Pressuresat Different Temperaturespsi at73.4 F(kPa at23 C)psi at180 F(kPa at82.2 C)1216 (12) 870 (6 000) 580 (4 000)1620 (58) 725 (5 000) 550 (3 800)2025 (34) 580 (4 000) 465 (3 200)2532 (1) 580 (4 0
33、00) 465 (3 200)F1974 0927. Dimensions7.1 Dimensions and TolerancesThe dimensions and tol-erances 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 cen
34、terline axis.7.1.2 Fittings with Solder Joint EndsSolder joint endsshall be in accordance with ANSI 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.
35、1 The sealing surfaces of the insert shall be smooth andfree of foreign material. The fitting walls 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
36、PE/AL/PEor PEX/AL/PEX pipe by the use of either a crimp joint or acompression joint.8.1.2 Crimp 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 f
37、ormed by ribs onthe fitting. The dimensions and out-of-roundness of the crimpring after it has 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 th
38、e pipe, insert the ribbed endof the fitting into the end of the pipe until the pipe contacts theshoulder 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 s
39、hall be centered over the crimp ring and the toolshall be held so that the crimping jaws are perpendicular 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. Eachcrim
40、p shall be checked to determine conformance to the aftercrimped dimensional requirements of Table 5.8.2 Compression 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
41、 forcing the pipe material intothe annular space formed by ribs on the fitting.TABLE 2 Crimp Joint Fitting DimensionsDimension 121612 in.162058 in.202534 in.25321in.A Male and female 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 a co
42、upling tee,90 elbow or other adapter.id 0.334 in.60.008 in.0.452 in.60.008 in.0.610 in.60.008 in.0.807 in.60.008 in.B1 0.591 in.60.025 in0.591 in.60.025 in0.591 in.60.025 in0.591 in.60.025 inB2 0.650 in.60.050 in0.650 in.60.050 in0.650 in.60.050 in0.650 in.60.050 inC 0.482 in.60.004 in.0.620 in.60.0
43、04 in.0.781 in.60.004 in.0.998 in.60.004 in.D(bottom of groove)0.406 in.60.004 in.0.543 in.60.004 in.0.701 in.60.004 in.0.902 in.60.004 in.E 0.067 in.60.005 in.0.067 in.60.005 in.0.067 in.60.005 in.0.079 in.60.005 in.F 0.059 in.60.003 in.0.059 in.60.003 in.0.059 in.60.003 in.0.071 in.60.003 in.G 0.3
44、15 in.60.008 in.0.409 in.60.008 in0.567 in.60.008 in0.764 in.60.008 inF1974 0938.2.1 Compression Jointing ProcedureTo affix the insertfitting to the pipe with the split ring, and compression nut theprocedure shall be as follows: slide the compression nut andsplit ring onto the pipe, insert the ribbe
45、d end of the fitting intothe end of the pipe until the pipe contacts the shoulder of thefitting or pipe stop. Position and compress the split ring bytightening the compression nut onto the insert fitting.TABLE 3 Compression Joint Fitting DimensionsDimension 121612 in.162058 in.202534 in.25321in.A Ma
46、le and Female 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 a coupling tee,90 elbow or other adapter.id 0.334 in.60.008 in.0.452 in.60.008 in.0.610 in.60.008 in.0.807 in.60.008 in.B 0.370 in.60.050 in.0.370 in.60.050 in.0.370 in.60.0
47、50 in.0.472 in.60.050 in.C 0.482 in.60.004 in.0.620 in.60.004 in.0.781 in.60.004 in.0.998 in.60.004 in.D 0.406 in.60.004 in.0.543 in.60.004 in.0.701 in.60.004 in.0.902 in.60.004 in.E 0.067 in.60.005 in.0.067 in.60.005 in.0.067 in.60.005 in.0.079 in.60.005 in.F 0.059 in.60.003 in.0.059 in.60.003 in.0
48、.059 in.60.003 in.0.071 in.60.003 in.G 0.315 in.60.008 in.0.409 in.60.008 in0.567 in.60.008 in0.764 in.60.008 inH 0.157 in.60.008 in.0.177 in.60.008 in.0.177 in.60.008 in.0.197 in.60.008 in.I 0.638 in.60.008 in.0.795 in.60.008 in.0.992 in.60.008 in.1.276 in.60.008 in.J 0.650 in.60.008 in.0.815 in.60
49、.008 in.1.024 in.60.008 in.1.291 in.60.008 in.TABLE 4 Copper Crimp Ring DimensionsDimension 121612 in.162058 in.202534 in.25321in.AInside Diameter0.65260.0020.81260.0021.00960.0021.28460.002BWall Thickness0.05260.0020.05060.0021.04960.0021.04960.002CWidth0.39460.0200.39460.0200.39460.0200.39460.020F1974 0949. Test Methods9.1 ConditioningCondition specimens at 73 6 4F(2362 C) and 506 5 % relative humidity for not less than 4 h priorto testing. Use Test Method D618 to the extent possible as aguide to other conditions.9.2 T
