1、Designation: F 1987 01 (Reapproved 2006)An American National StandardStandard Specification forMultilayer Pipe Type 2, Compression Fittings, andCompression Joints for Hydronic Heating Systems1This standard is issued under the fixed designation F 1987; the number immediately following the designation
2、 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 (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers requiremen
3、ts for multilayerpipe type 2 and compression fittings for hydronic heatingsystems, with a maximum pressure/temperature range of 1000kPa (145 psi), at 82C (180F).NOTE 1Multilayer Pipe Type 2Construction-based pressure ratedpipe comprising more than one layer in which at least 60 % of the wallthicknes
4、s is polymeric material.1.2 Multilayer pipe type 2 is produced using a butt-weldedaluminum pipe as a core, with an extruded inside layer ofcrosslinked polyethylene (PEX). An adhesive layer is used tobond the inside layer to the wall of the aluminum pipe. Anouter layer of polyethylene (PE) and an adh
5、esive layer areextruded to the outer wall of the aluminum pipe.1.3 Multilayer pipe type 2 is produced in Configurations 1and 2, as shown in Fig. 1.1.4 This specification includes compression fittings, whichare referenced in Fig. 2.1.5 Specifications for threaded or solder adapters for usewith pipe a
6、nd fittings meeting the requirements of this speci-fication are given in Annex A1 and Annex A2.1.6 The following safety hazards caveat pertains only to thetest method portion of this specification: This standard doesnot purport to address all of the safety concerns, if any,associated with its use. I
7、t is the responsibility of the user of thisstandard to establish appropriate safety and health practicesand determine the applicability of regulatory limitations priorto use.1.7 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard. The values stated ineac
8、h system may not be exact equivalents; therefore, eachsystem shall be used independently of the other. Combiningvalues from the two systems may result in nonconformancewith this specification.NOTE 2Multilayer pipe type 2, configurations 1 and 2, for hydronicheating systems are not compatible for dri
9、nking water use.2. Referenced Documents2.1 ASTM Standards:2B 283 Specification for Copper and Copper-Alloy Die Forg-ings (Hot-Pressed)B 455 Specification for Copper-Zinc-Lead Alloy (Leaded-Brass) Extruded ShapesB 547/B 547M Specification forAluminum andAluminum-Alloy Formed and Arc-Welded Round Tube
10、B 584 Specification for Copper Alloy Sand Castings forGeneral ApplicationsD 618 Practice for Conditioning Plastics for TestingD 1505 Test Method for Density of Plastics by the Density-Gradient TechniqueD 1598 Test Method for Time-to-Failure of Plastic PipeUnder Constant Internal PressureD 1600 Termi
11、nology for Abbreviated Terms Relating toPlasticsD 1898 Practice for Sampling of Plastics3D 2122 Test Method for Determining Dimensions of Ther-moplastic Pipe and FittingsD 3222 Specification for Unmodified Poly(VinylideneFluoride) (PVDF) Molding Extrusion and Coating Mate-rialsD 3418 Test Method for
12、 Transition Temperatures of Poly-mers By Differential Scanning CalorimetryD 3350 Specification for Polyethylene Plastics Pipe andFittings MaterialsD 5033 Guide for Development of ASTM Standards Relat-ing to Recycling and Use of Recycled PlasticsF 412 Terminology Relating to Plastic Piping SystemsF 4
13、77 Specification for Elastomeric Seals (Gaskets) forJoining Plastic Pipe2.2 ISO Standard:4ISO 10508 Thermoplastics Pipe and Fittings for Hot and1This specification is under the jurisdiction of ASTM Committee F17 on PlasticPiping Systems and is the direct responsibility of Subcommittee F17.11 onCompo
14、site.Current edition approved Nov. 1, 2006. Published January 2007.Originally approved in 2000. Last previous edition approved in 2001 asF198701.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards
15、volume information, refer to the standards Document Summary page onthe ASTM website.3Withdrawn.4Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Consho
16、hocken, PA 19428-2959, United States.Cold Water Systems2.3 ARP Standard:5AS 568 A Aerospace Size Standard for O-Rings3. Terminology3.1 DefinitionsDefinitions are in accordance with Termi-nology F 412, and abbreviations are in accordance with Ter-minology D 1600, unless otherwise specified.3.1.1 cros
17、slinkable polyethylene, nplastic prepared bycrosslinking (curing) of PE compound partially during manu-facturing process and final crosslinking during use.3.1.2 crosslinked polyethylene (PEX), nplastic preparedby crosslinking (curing) of polyethylene compound.3.1.3 multilayer pipe type 2, npipe cons
18、isting of differentmaterials with specific functional purpose to serve as pipe.3.1.4 pressure ratings, PR, nthe maximum, continuouswater pressure at a specified temperature that is capable ofwithstanding without failure.3.2 Definitions of Terms Specific to This Standard:3.2.1 adhesive, na low-molecu
19、lar-weight PE that func-tions as an adhesive layer and bonds the PEX to aluminumpipe.3.2.2 compression fittings for multilayer pipe, nfittingsdeveloped specially for multilayer pipe in which the aluminumcore is used as compression sleeve to develop sufficientmechanical strength for the connection (s
20、ee Fig. 2).3.2.3 lot, nall pipe of the same size produced from oneextrusion line during one designated period.3.2.4 multilayer pipeabbreviation used in this specifica-tion for multilayer pipe type 2.4. Classification4.1 Multilayer pipe and compression fittings produced un-der this specification shal
21、l be suitable for hydronic heatingsystems at specified pressure ratings and temperatures.5. Materials and Manufacture5.1 Specification for Material and Manufacture of Multi-layer Pipe Configurations 1 and 2:5.1.1 Polyethylene (PE), shall meet the requirement pro-vided in Specification D 3350 and sha
22、ll equal or exceed aminimum cell classification of 234233 B or 345442 B. Colorand form of the material shall be in accordance with theagreement between purchaser and supplier under SpecificationD 3350.5.1.2 Crosslinked Polyethylene (PEX), shall equal or ex-ceed a minimum cell classification 344543 A
23、. Form of thematerial shall be in accordance with the agreement betweenpurchaser and supplier under Specification D 3350.5.1.3 Adhesive Polymers, shall be modified low molecularweight PE with a minimum density of 0.915 g/cm3anddifferent levels of comonomer for adhesion to aluminum andother substrate
24、s. The melting point shall not be less than 120C(248F). Density shall be determined in accordance with TestMethod D 1505 and melting point in accordance with TestMethod D 3418.5.1.4 Aluminum PipeMechanical PropertiesMinimumtensile strength shall be 80 MPa (11 600 psi), minimumelongation shall be 22
25、% A5, in accordance with Test MethodB 547/B 547M.5.1.5 Reusable MaterialReusable material as defined inGuide D 5033 issued from the multilayer pipe manufacturershall be used for the outside coating of the multilayer pipe.5.2 Specification for Material and Manufacture of Compres-sion Fittings for Mul
26、tilayer Pipe:5.2.1 Compression fittings made from cast bronze shallmeet the requirements of Specification B 584 UNS copperalloy C 83600.5.2.2 Compression fittings made from brass shall meet therequirements of Specification B 455, copper alloy C 38500 orSpecification B 283 copper alloy C 37700.5.2.3
27、Compression fittings made from plastic shall be injec-tion molded from virgin material and meet the requirements ofSpecification D 3222, Type II.5.3 Material Specification for O-RingsThe O-ring mate-rial shall be EPDM, with a hardness of 70 IRHD, inaccordance with Specification F 477. O-ring dimensi
28、ons shallbe in accordance with AS 568 A.6. Requirements6.1 Multilayer Pipe Dimensions:5Available from Society of Automotive Engineers (SAE), 400 CommonwealthDr., Warrendale, PA 15096-0001, http:/www.sae.org.Layer: 1 2 3 4 5Configuration 1 HDPE AdhesiveLayerAl -AlloyAdhesiveLayerPEX(1)crosslinkableCo
29、nfiguration 2 MDPE AdhesiveLayerAl -AlloyAdhesiveLayerPEX(1)crosslinkablePEX(1): Material is being crosslinked partially during manufacturing process.Final crosslinking takes place during use.FIG. 1 Multilayer Pipe Sample for Configurations 1 and 2FIG. 2 Compression Fittings and O-Rings for Multilay
30、er PipeF 1987 01 (2006)26.1.1 Outside DiameterThe outside diameter shall meetthe requirements of Table 1, when measured in accordancewith Test Method D 2122.6.1.2 Wall ThicknessThe wall thickness of composite pipeshall meet the requirements of Table 1 when measured inaccordance with Test Method D 21
31、22. The wall thickness andthe outside diameter of the aluminum pipe shall be determinedprior to the next manufacturing steps.6.1.3 Average Thickness of Inner and Outer LayersTheaverage thickness of the inner and outer layers of the multilayerpipe will be calculated as follows:6.1.3.1 Average Thickne
32、ss of the Outer LayerThe averageoutside diameter of the multilayer pipe minus the averageoutside diameter of the aluminum pipe multiplied by 0.5.6.1.3.2 Average Thickness of the Inner LayerThe averagewall thickness of the multilayer pipe minus the average wallthickness of the aluminum pipe minus the
33、 average wallthickness of the outer layer.6.1.4 LengthThe pipe shall be supplied in coils or instraight lengths in accordance with the agreement betweenpurchaser and seller. The tolerance shall be +100 mm for coiledlengths, and +10 mm for straight lengths.6.2 Compression Fitting/DimensionsCompressio
34、n fittingsshall meet the requirements of Table 2 when measured inaccordance with Test Method D 2122.6.2.1 Compression ToolThe compression tool shall meetthe requirements of Table 3 when measured in accordance withTest Method D 2122.6.3 Minimum Burst PressureThe minimum burst pressurefor multilayer p
35、ipe and compression fittings for hydronicheating systems shall be as given in Table 5.6.4 Sustained PressureThe multilayer pipe and fittingsshall not fail at the test pressure and temperature given in Table6 when tested in accordance with 8.1.6.5 Thermal Cycling TestThe multilayer pipe and fittingss
36、hall not fail when tested in accordance with 8.2.6.6 Excessive Temperature/Pressure CapabilityIn theevent of a waterheating systems malfunction, the multilayerpipe and fittings shall have adequate strength to accommodateshort-term conditions, 30 days at 100C (212F), 1200 kPa(175 psi) until repairs c
37、an be made. Tests will be made inaccordance with 8.6.7. Workmanship, Finish and Appearance7.1 Workmanship for Multilayer PipeMultilayer pipemust have a smooth inner and outer surface, free fromirregularities such as cracks, bubbles, pin holes or otherimperfections. There shall be no evidence of dela
38、minationduring testing or assembling of multilayer pipe and the selectedfittings.7.2 Workmanship for Compression FittingsCompressionfittings for multilayer pipe shall be suitable for the intendedapplication and free from defects. The selected fittings shall besmooth and free of any sharp-edged groov
39、es, which coulddamage the pipe.8. Test Methods8.1 Sustained-Hydrostatic-Pressure TestMultilayer pipeand fittings shall be tested in accordance with Test MethodD 1598. Tests shall be performed at 1 h and 1000 h inaccordance with Table 6. No failure shall occur for the durationof the tests.8.2 Thermal
40、 Cycling TestThe multilayer pipe and fittingsshall be tested in accordance with ISO 10508, referring to Fig.4. There shall be no leakage from pipes, fittings, or joints aftercompletion of 5000 cycles, each with a duration of 30 6 2 minat a constant internal pressure of 1000 6 50 kPa (145 6 7.25psi).
41、 Each cycle shall comprise 15 min of cold water at 20 62C (68 6 3.6F) and 15 min of hot water at 90 6 2C (1946 3.6F).8.3 Water Hammer TestMultilayer pipe and fittings shallnot fail when subjected to 10 000 cycles. Tests shall beperformed at room temperature, pressure cycles alternatingbetween 100 6
42、50 kPa (14.51 6 7.25 psi) and 1500 6 50 kPa(220 6 7.25 psi) at a rate of 30 6 5 per min. Test in accordancewith ISO 10508, referring to Fig. 5.8.4 DelaminationMultilayer pipe shall not delaminatewhen tested with the adapter tool in Table 4, as described inFig. 6. The depth to which the adapter tool
43、is to be insertedshall be marked. No delamination of bond shall occur.8.5 Fusion Line TestThe adapter tool has to be insertedinto the multilayer pipe to the indicated depth (see Fig. 6). Novisible damage shall occur on the fusion line or at any place ofthe aluminum section.8.6 Excessive Temperature/
44、Pressure CapabilityTest sixassemblies of multilayer pipe and fittings selected at random inaccordance with Test Method D 1598, except the test tempera-ture shall be 100 6 2C (212 6 3.6F), the test pressure shallbe 1200 kPa (175 psi), the external test environment shall beTABLE 1 Multilayer Pipe Dime
45、nsionsConfig-urationOutsideDiameter,mm (in.)Inside Diameter,mm (in.)Wall Thickness,mm (in.)Thickness ofInside PEXLayer,mm (in.)Thicknessof InsideAdhesiveLayer,mm (in.)AluminumThickness,mm (in.)ThicknessofOutsideAdhesiveLayer,mm (in.)Thickness ofOutside HDPELayer,mm (in.)Out-of-RoundnessMinimumInside
46、Diameter,mm (in.)1266 0.2 20 6 0.2 3.00 +0.25 0.1 1.25 6 0.15 0.15 0.70 +0.06 0.02 0.15 0.75 6 0.15 19.3(1.024 6 0.008) (0.787 6 0.008) (0.118 +0.010 0.004) (0.049 6 0.006) (0.006) (0.028 +0.002 0.001) (0.006) (0.030 6 0.006) (0.760)16 6 0.2 11.5 6 0.2 2.25 +0.2 0.1 0.60 +0.15 0.1 0.15 0.40 +0.01 0.
47、03 0.15 0.95 +0.2 0.1 10.8(0.630 6 0.008) (0.453 6 0.008) (0.089 +0.008 0.004) (0.024 +0.006 0.004) (0.006) (0.016 +0.000 0.001) (0.006) (0.037 +0.008 0.004) (0.425)2206 0.2 15 6 0.2 2.50 +0.2 0.1 0.70 +0.2 0.1 0.15 0.47 +0.01 0.03 0.15 1.03 +0.2 0.1 14.3(0.787 6 0.008) (0.591 6 0.008) (0.098 +0.008
48、 0.004) (0.028 +0.008 0.004) (0.006) (0.019 +0.000 0.001) (0.006) (0.041 +0.008 0.004) (0.563)F 1987 01 (2006)3air, and the specimens shall be filled with water at a tempera-ture of at least 50C (122F). Leakage or separation at any jointtested at less than 30 days (720 h) at the test pressure shallc
49、onstitute failure.9. Quality Control9.1 Quality control tests are valid for the whole range ofdiameters, but only specified test methods are accepted. Aquality program shall include tests described in Section 8, 8.1,8.4, and 8.5.10. Sampling and Conditioning10.1 SamplingSpecimens for each test shall be taken frompipe selected at random from each lot and the random samplingplan of Practice D 1898.10.2 ConditioningEach specimen shall be conditioned atroom temperature and 50 6 5 % relative humidity of themanufac
