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
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 () 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
4、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 adhes
5、ive 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
7、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 ineach
8、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 drink
9、ing 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 fo
11、rAbbreviated Terms Relating to Plas-ticsD1898 Practice for Sampling of Plastics (Withdrawn 1998)3D2122 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 Meth
12、od for Transition Temperatures and En-thalpies of Fusion and Crystallization of Polymers byDifferential Scanning CalorimetryD3350 Specification for Polyethylene Plastics Pipe and Fit-tings MaterialsD5033 Guide for Development ofASTM Standards Relatingto Recycling and Use of Recycled Plastics (Withdr
13、awn2007)3F412 Terminology Relating to Plastic Piping SystemsF477 Specification for Elastomeric Seals (Gaskets) for Join-ing Plastic Pipe1This specification is under the jurisdiction of ASTM Committee F17 on PlasticPiping Systems and is the direct responsibility of Subcommittee F17.11 onComposite.Cur
14、rent 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, orcontact ASTM Customer Service at serviceastm.org. For Annu
15、al Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United
16、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 Recommendations issued by the World Trade Organization Technical Barriers to
17、 Trade (TBT) Committee.12.2 ISO Standard:4ISO 10508 Thermoplastics Pipe and Fittings for Hot andCold Water Systems2.3 ARP Standard:5AS 568 A Aerospace Size Standard for O-Rings3. Terminology3.1 Definitions:3.1.1 Definitions are in accordance with Terminology F412,and abbreviations are in accordance
18、with Terminology D1600,unless otherwise specified.3.1.2 crosslinkable polyethylene, nplastic prepared bycrosslinking (curing) of PE compound partially during manu-facturing process and final crosslinking during use.3.1.3 crosslinked polyethylene (PEX), nplastic preparedby crosslinking (curing) of po
19、lyethylene compound.3.1.4 multilayer pipe type 2, npipe consisting of differentmaterials with specific functional purpose to serve as pipe.3.1.5 pressure ratings, PR, nthe maximum, continuouswater pressure at a specified temperature that is capable ofwithstanding without failure.3.2 Definitions of T
20、erms 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 specially for multilayer pipe in which the aluminumcore is used as compression sleeve to
21、 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 this specifica-tion for multilayer pipe type 2.4. Classification4.1 Multilayer pipe and
22、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 Manufacture of Multi-layer Pipe Configurations 1 and 2:5.1.1 Polyethylene (PE), shall me
23、et 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 purchaser and supplier under SpecificationD3350.5.1.2 Crosslinked Polyethylene (PEX), sha
24、ll equal or exceeda minimum cell classification 344543 A. Form of the materialshall be in accordance with the agreement between purchaserand supplier under Specification D3350.5.1.3 Adhesive Polymers, shall be modified low molecularweight PE with a minimum density of 0.915 g/cm3anddifferent levels o
25、f 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 TestMethod D3418.5.1.4 Aluminum PipeMechanical PropertiesMinimumtensile strength shall b
26、e 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 manufacturershall be used for the outside coating of the multilayer pipe.5.2 Specification for Materia
27、l 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 alloyC83600.5.2.2 Compression fittings made from brass shall meet therequirements of Specification B455, copper alloy C38500 orS
28、pecification B283 copper alloy C37700.4Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.5Available from Society of Automotive Engineers (SAE), 400 CommonwealthDr., Warrendale, PA 15096-0001, http:/www.sae.org.Layer: 1 2 3 4
29、 5Configuration 1 HDPE AdhesiveLayerAl -AlloyAdhesiveLayerPEX(1)crosslink-ableConfiguration 2 MDPE AdhesiveLayerAl -AlloyAdhesiveLayerPEX(1)crosslink-ablePEX(1): Material is being crosslinked partially during manufacturing process.Final crosslinking takes place during use.FIG. 1 Multilayer Pipe Samp
30、le for Configurations 1 and 2FIG. 2 Compression Fittings and O-Rings for Multilayer PipeF1987 01 (2011)25.2.3 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 for O-RingsThe O-ri
31、ng 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 :6.1.1 Outside DiameterThe outside diameter shall meetthe requirements of Table 1, when measured in accord
32、ancewith Test Method D2122.6.1.2 Wall ThicknessThe 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
33、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 Thickness of the Outer LayerThe averageoutside diameter of the multilayer pipe minus the averageoutside diameter of the aluminum pipe mult
34、iplied 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 average wallthickness of the outer layer.6.1.4 LengthThe pipe shall be supplied in coils or instraight lengths in accordance with
35、the agreement betweenpurchaser and seller. The tolerance shall be +100 mm for coiledlengths, and +10 mm for straight lengths.6.2 Compression Fitting/Dimensions Compression fit-tings shall meet the requirements of Table 2 when measured inaccordance with Test Method D2122.6.2.1 Compression ToolThe com
36、pression tool shall meetthe requirements of Table 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 an
37、d 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 fittingsshall not fail when tested in accordance with 8.2.6.6 Excessive Temperature/Pressure CapabilityIn theevent of a waterheating system
38、s malfunction, the multilayerpipe and fittings 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 PipeMult
39、ilayer pipemust have a smooth inner and outer surface, 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 FittingsCompress
40、ionfittings for multilayer pipe shall be suitable 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
41、in accordance with Test MethodD1598. 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 Cycling TestThe multilayer pipe and fittingsshall be tested in accordance with ISO 10508, referring to Fig.4. There shall be no l
42、eakage 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). 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 Ham
43、mer TestMultilayer pipe and fittings shallnot fail 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, referri
44、ng to Fig. 5.8.4 DelaminationMultilayer pipe shall not delaminatewhen tested with the adapter tool in Table 4, as described inTABLE 1 Multilayer Pipe DimensionsConfig-urationOutsideDiameter,mm (in.)Inside Diameter,mm (in.)Wall Thickness,mm (in.)Thickness ofInside PEXLayer,mm (in.)Thicknessof InsideA
45、dhesiveLayer,mm (in.)AluminumThickness,mm (in.)ThicknessofOutsideAdhesiveLayer,mm (in.)Thickness ofOutside HDPELayer,mm (in.)Out-of-RoundnessMinimumInsideDiameter,mm (in.)1 26 0.2 20 0.2 3.00 +0.25 0.1 1.25 0.15 0.15 0.70 +0.06 0.02 0.15 0.75 0.15 19.3(1.024 0.008) (0.787 0.008) (0.118 +0.010 0.004)
46、 (0.049 0.006) (0.006) (0.028 +0.002 0.001) (0.006) (0.030 0.006) (0.760)16 0.2 11.5 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 0.008) (0.453 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)2 2
47、0 0.2 15 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 0.008) (0.591 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)3Fig. 6. The depth to which the adapter tool is to be insertedsha
48、ll 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/Pressure CapabilityT
49、est 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 6 3.6F), the test pressure shallbe 1200 kPa (175 psi), the external test environment shall beair, 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 shallconstitute failure.9. Quality Control9.1 Qual
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