1、Designation: F1987 01 (Reapproved 2011)An American National StandardStandard Specification forMultilayer Pipe Type 2, Compression Fittings, andCompression Joints for Hydronic Heating Systems1This standard is issued under the fixed designation F1987; the number immediately following the designation i
2、ndicates 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. Scope1.1 This specification covers requirements
3、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 wallthickness i
4、s 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 adhesi
5、ve 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 and
6、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. It i
7、s 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 ineach s
8、ystem 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 drinki
9、ng water use.2. Referenced Documents2.1 ASTM Standards:2B283 Specification for Copper and Copper-Alloy Die Forg-ings (Hot-Pressed)B455 Specification for Copper-Zinc-Lead Alloy (Leaded-Brass) Extruded ShapesB547/B547M Specification for Aluminum and Aluminum-Alloy Formed and Arc-Welded Round TubeB584
10、Specification for Copper Alloy Sand Castings forGeneral ApplicationsD618 Practice for Conditioning Plastics for TestingD1505 Test Method for Density of Plastics by the Density-Gradient TechniqueD1598 Test Method for Time-to-Failure of Plastic PipeUnder Constant Internal PressureD1600 Terminology for
11、 Abbreviated Terms Relating toPlasticsD1898 Practice for Sampling of Plastics3D2122 Test Method for Determining Dimensions of Ther-moplastic Pipe and FittingsD3222 Specification for Unmodified Poly(Vinylidene Fluo-ride) (PVDF) Molding Extrusion and Coating MaterialsD3418 Test Method for Transition T
12、emperatures and En-thalpies of Fusion and Crystallization of Polymers byDifferential Scanning CalorimetryD3350 Specification for Polyethylene Plastics Pipe andFittings MaterialsD5033 Guide for Development of ASTM Standards Relat-ing to Recycling and Use of Recycled Plastics3F412 Terminology Relating
13、 to Plastic Piping SystemsF477 Specification for Elastomeric Seals (Gaskets) for Join-ing Plastic Pipe2.2 ISO Standard:4ISO 10508 Thermoplastics Pipe and Fittings for Hot andCold Water Systems1This specification is under the jurisdiction of ASTM Committee F17 on PlasticPiping Systems and is the dire
14、ct responsibility of Subcommittee F17.11 onComposite.Current edition approved Aug. 1, 2011. Published November 2011. Originallyapproved in 2000. Last previous edition approved in 2006 as F198701(2006). DOI:10.1520/F1987-01R11.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orco
15、ntact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Withdrawn. The last approved version of this historical standard is referencedon www.astm.org.4Available from American National Standa
16、rds 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 Conshohocken, PA 19428-2959, United States.2.3 ARP Standard:5AS 568 A Aerospace Size Standard for O-Rings3. Terminology3.1 DefinitionsDefinit
17、ions are in accordance with Termi-nology F412, and abbreviations are in accordance with Termi-nology D1600, unless otherwise specified.3.1.1 crosslinkable polyethylene, nplastic prepared bycrosslinking (curing) of PE compound partially during manu-facturing process and final crosslinking during use.
18、3.1.2 crosslinked polyethylene (PEX), nplastic preparedby crosslinking (curing) of polyethylene compound.3.1.3 multilayer pipe type 2, npipe consisting of differentmaterials with specific functional purpose to serve as pipe.3.1.4 pressure ratings, PR, nthe maximum, continuouswater pressure at a spec
19、ified temperature that is capable ofwithstanding without failure.3.2 Definitions of Terms Specific to This Standard:3.2.1 adhesive, na low-molecular-weight PE that func-tions as an adhesive layer and bonds the PEX to aluminumpipe.3.2.2 compression fittings for multilayer pipe, nfittingsdeveloped spe
20、cially for multilayer pipe in which the aluminumcore is used as compression sleeve to develop sufficientmechanical strength for the connection (see 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 thi
21、s specifica-tion for multilayer pipe type 2.4. Classification4.1 Multilayer pipe and compression fittings produced un-der this specification shall be suitable for hydronic heatingsystems at specified pressure ratings and temperatures.5. Materials and Manufacture5.1 Specification for Material and Man
22、ufacture of Multi-layer Pipe Configurations 1 and 2:5.1.1 Polyethylene (PE), shall meet the requirement pro-vided in Specification D3350 and shall equal or exceed aminimum cell classification of 234233 B or 345442 B. Colorand form of the material shall be in accordance with theagreement between purc
23、haser and supplier under SpecificationD3350.5.1.2 Crosslinked Polyethylene (PEX), shall equal or ex-ceed a minimum cell classification 344543 A. Form of thematerial shall be in accordance with the agreement betweenpurchaser and supplier under Specification D3350.5.1.3 Adhesive Polymers, shall be mod
24、ified low molecularweight PE with a minimum density of 0.915 g/cm3anddifferent levels of comonomer for adhesion to aluminum andother substrates. The melting point shall not be less than 120C(248F). Density shall be determined in accordance with TestMethod D1505 and melting point in accordance with T
25、estMethod D3418.5.1.4 Aluminum PipeMechanical PropertiesMinimumtensile strength shall be 80 MPa (11 600 psi), minimumelongation shall be 22 % A5, in accordance with Test MethodB547/B547M.5.1.5 Reusable MaterialReusable material as defined inGuide D5033 issued from the multilayer pipe manufacturersha
26、ll be used for the outside coating of the multilayer pipe.5.2 Specification for Material and Manufacture of Compres-sion Fittings for Multilayer Pipe:5.2.1 Compression fittings made from cast bronze shallmeet the requirements of Specification B584 UNS copper alloyC8360.5.2.2 Compression fittings mad
27、e from brass shall meet therequirements of Specification B455, copper alloy C3850 orSpecification B283 copper alloy C3770.5.2.3 Compression fittings made from plastic shall be injec-tion molded from virgin material and meet the requirements ofSpecification D3222, Type II.5.3 Material Specification f
28、or O-RingsThe O-ring mate-rial shall be EPDM, with a hardness of 70 IRHD, inaccordance with Specification F477. O-ring dimensions shallbe in accordance with AS 568 A.6. Requirements6.1 Multilayer Pipe Dimensions:5Available from Society of Automotive Engineers (SAE), 400 CommonwealthDr., Warrendale,
29、PA 15096-0001, http:/www.sae.org.Layer: 1 2 3 4 5Configuration 1 HDPE AdhesiveLayerAl -AlloyAdhesiveLayerPEX(1)cross-linkableConfiguration 2 MDPE AdhesiveLayerAl -AlloyAdhesiveLayerPEX(1)cross-linkablePEX(1): Material is being crosslinked partially during manufacturing process.Final crosslinking tak
30、es place during use.FIG. 1 Multilayer Pipe Sample for Configurations 1 and 2FIG. 2 Compression Fittings and O-Rings for Multilayer PipeF1987 01 (2011)26.1.1 Outside DiameterThe outside diameter shall meetthe requirements of Table 1, when measured in accordancewith Test Method D2122.6.1.2 Wall Thickn
31、essThe wall thickness of composite pipeshall meet the requirements of Table 1 when measured inaccordance with Test Method D2122. 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 LayersT
32、heaverage thickness of the inner and outer layers of the multilayerpipe will be calculated as follows:6.1.3.1 Average Thickness 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 t
33、he Inner LayerThe averagewall thickness of the multilayer pipe minus the average wallthickness of the aluminum pipe minus the 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. T
34、he tolerance shall be +100 mm for coiledlengths, and +10 mm for straight lengths.6.2 Compression Fitting/DimensionsCompression fittingsshall meet the requirements of Table 2 when measured inaccordance with Test Method D2122.6.2.1 Compression ToolThe compression tool shall meetthe requirements of Tab
35、le 3 when measured in accordance withTest Method D2122.6.3 Minimum Burst PressureThe minimum burst pressurefor multilayer pipe 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 a
36、nd temperature given in Table6 when tested in accordance with 8.1.6.5 Thermal Cycling TestThe multilayer pipe and fittingsshall 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
37、shall have adequate strength to accommodateshort-term conditions, 30 days at 100C (212F), 1200 kPa(175 psi) until repairs can 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 su
38、rface, free fromirregularities such as cracks, bubbles, pin holes or otherimperfections. There shall be no evidence of delaminationduring testing or assembling of multilayer pipe and the selectedfittings.7.2 Workmanship for Compression FittingsCompressionfittings for multilayer pipe shall be suitabl
39、e for the intendedapplication and free from defects. The selected fittings shall besmooth and free of any sharp-edged grooves, which coulddamage the pipe.8. Test Methods8.1 Sustained-Hydrostatic-Pressure TestMultilayer pipeand fittings shall be tested in accordance with Test MethodD1598. Tests shall
40、 be performed at 1 h and 1000 h inaccordance with Table 6. No failure shall occur for the durationof the tests.8.2 Thermal 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 aftercomp
41、letion 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). 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 fa
42、il when subjected to 10 000 cycles. Tests shall beperformed at room temperature, pressure cycles alternatingbetween 100 6 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 sha
43、ll not delaminatewhen tested with the adapter tool in Table 4, as described inFig. 6. The depth to which the adapter tool 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
44、Fig. 6). Novisible damage shall occur on the fusion line or at any place ofthe aluminum section.8.6 Excessive Temperature/Pressure CapabilityTest sixassemblies of multilayer pipe and fittings selected at random inaccordance with Test Method D1598, except the test tempera-ture shall be 100 6 2C (212
45、6 3.6F), the test pressure shallbe 1200 kPa (175 psi), the external test environment shall beTABLE 1 Multilayer Pipe DimensionsConfig-urationOutsideDiameter,mm (in.)Inside Diameter,mm (in.)Wall Thickness,mm (in.)Thickness ofInside PEXLayer,mm (in.)Thicknessof InsideAdhesiveLayer,mm (in.)AluminumThic
46、kness,mm (in.)ThicknessofOutsideAdhesiveLayer,mm (in.)Thickness ofOutside HDPELayer,mm (in.)Out-of-RoundnessMinimumInsideDiameter,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
47、) (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 0.03 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
48、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 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)F1987 01 (2011)3air, and the specimens shall be filled with water at a tempera-ture o
49、f at least 50C (122F). Leakage or separation at any jointtested at less than 30 days (720 h) at the test pressure shallconstitute 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 D1
