1、Designation: F1733 13 An American National StandardStandard Specification forButt Heat Fusion Polyamide(PA) Plastic Fitting forPolyamide(PA) Plastic Pipe and Tubing1This standard is issued under the fixed designation F1733; the number immediately following the designation indicates the year oforigin
2、al 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 specification covers polyamide (PA) butt fusionfittings for
3、 use with polyamide pipe (IPS and ISO) and tubing(CTS). Included are requirements for materials, workmanship,dimensions, marking, sustained pressure, and burst pressure.1.2 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversion
4、s to SI units that are provided for information onlyand are not considered standard.1.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and
5、 determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2NOTE 1For over 40 years D2513 was the singular US CFR Title 49Part 192 referenced Standard Specification codifying the installation anduse of thermoplastic gas piping in jurisdictional ins
6、tallations. Initially allmaterials (PE, PVC, ABS, CAB) were contained within the body of thestandard D2513. In later years D2513 was completely reformatted to makeit more user friendly by moving material-specific requirements from thestandards body to mandatory annexes. The next major change occurre
7、dlate in 2009 at which time all thermoplastic materials, exceptpolyethylene, were removed from D2513 changing its Title and Scopefrom a thermoplastic gas piping standard to a polyethylene-only gaspiping standard. This recent change required that new standards bedeveloped for those materials that wer
8、e removed from D2513 includingPA11. This causes problems for PA11 piping because it has beenreferenced and permitted for jurisdictional use and installation under USCFR Title 49 Part 192 as complying with D2513 and D2513 no longer hasthe A5 polyamide annex and Part 192 still references D2513-99 whic
9、hmakes for potential confusion. This puts PA11 gas piping standards intosomewhat of a limbo since D2513 is now a PE-only specification isreferenced in all of these standards. Therefore until Part 192 is revised toreference the new PA11 specification, F2945, PA11 has to fall back tociting the US Code
10、 referenced 1999 edition of D2513 in related standardsuch as this one. Until CFR Title 49 Part 192 references the newlydeveloped thermoplastic gas piping standards for those materials removedfrom D2513, there will be dual references, both D251399 and F2945 forPA11, as seen in this standard. At which
11、 time Part 192 references F2945,the PA11 gas piping standard, all references to D2513 and this note willbe removed from these standards.D1598 Test Method for Time-to-Failure of Plastic PipeUnder Constant Internal PressureD1599 Test Method for Resistance to Short-Time HydraulicPressure of Plastic Pip
12、e, Tubing, and FittingsD1600 Terminology forAbbreviated Terms Relating to Plas-ticsD2122 Test Method for Determining Dimensions of Ther-moplastic Pipe and FittingsD2513 Specification for Thermoplastic Gas Pressure Pipe,Tubing, and FittingsD4066 Classification System for Nylon Injection and Extru-sio
13、n Materials (PA)D6779 Classification System for and Basis of Specificationfor Polyamide Molding and Extrusion Materials (PA)F412 Terminology Relating to Plastic Piping SystemsF2785 Specification for Polyamide 12 Gas Pressure Pipe,Tubing, and FittingsF2945 Specification for Polyamide 11 Gas Pressure
14、Pipe,Tubing, and Fittings2.2 Federal Standard:3Fed. Std. No. 123 Marking for Shipment (Civil Agencies)CFR Title 49 Part 192 Transportation of Natural and OtherGas By Pipeline: Minimum Federal Safety Standards2.3 Military Standard:MIL-STD-129 Marking for Shipment and Storage32.4 National Sanitation F
15、oundation Standard:Standard No. 14 for Plastic Piping Components and RelatedMaterials41This specification is under the jurisdiction of ASTM Committee F17 on PlasticPiping Systems and is the direct responsibility of Subcommittee F17.10 on Fittings.Current edition approved May 1, 2013. Published May 2
16、013. Originallyapproved in 1996. Last previous edition approved in 2007 as F173307. DOI:10.1520/F1733-13.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standar
17、ds Document Summary page onthe ASTM website.3Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.4Available from NSF International, P.O. Box 130140, 789 N. Dixboro Rd., AnnArbor, MI 48113-0140, http:/www.nsf.org.*A Summary
18、 of Changes section appears at the end of this standardCopyright ASTM International, 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
19、 the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.13. Terminology3.1 Definitions are in accordance with Terminology F412and abbreviations are in accordance with Term
20、inology D1600,unless otherwise specified.3.2 dimension ratio (DR) for thermoplastic pipethe ratioof diameter to wall thickness. For this specification it iscalculated by dividing the specified outside diameter by thespecified wall thickness of the fitting at its area of fusion. DRsare rounded and do
21、 not calculate exactly.4. Classification4.1 GeneralThis specification covers butt fusion fittingsintended for use with polyamide pipe and tubing.4.1.1 Fittings covered by this specification are normallymolded. Fittings may be machined from extruded or moldedstock.4.1.2 Fittings fabricated by thermal
22、 welding are not in-cluded in this specification.4.1.3 Fittings intended for use in the distribution of naturalgas or petroleum fuels shall also meet the requirements ofSpecification D251399 and Specification F2945 for PA11materials or Specification F2785 for PA12 materials.5. Ordering Information5.
23、1 When ordering fittings under this specification, thefollowing should be specified:5.1.1 Polyamide compound (material designation or tradename)5.1.2 Style of fitting (tee, 90 ell, and the like)5.1.3 Size:5.1.3.1 Nominal diameter.5.1.3.2 CTS, IPS, or schedule.5.1.3.3 Dimension ratio number or schedu
24、le number.6. Materials6.1 Basic MaterialsThis specification covers fittings madefrom polyamide plastics as defined in Specifications D4066 orD6779.NOTE 2The PA plastic fittings intended for use in the transport ofpotable water should be evaluated and certified as safe for this purpose bya testing ag
25、ency acceptable to the local health authority. The evaluationshould be in accordance with requirements for chemical extraction, taste,and odor, that are no less restrictive than those included in NationalSanitation Foundation (NSF) Standard No. 14. The seal or mark of thelaboratory making the evalua
26、tion should be included on the pipe andtubing.6.2 CompoundsThe polyamide fittings compounds shallmeet the requirements for Group 3, Class 2, and Grade 3, orGroup 4, Class 2 and Grade 3 as prescribed in SpecificationsD4066 or D6779.NOTE 3Fittings produced from compounds meeting the requirementsof Gro
27、up 3, Class 2, and Grade 3 (PA 323) are intended for use with pipemanufactured from compounds meeting the requirements of Group 3,Class 2, and Grade 3. Fittings produced from compounds meeting therequirements of Group 4, Class 2, and Grade 3 (PA 423) are intended foruse with pipe manufactured from c
28、ompounds meeting the requirements ofGroup 4, Class 2, and Grade 3. As per the recommendations of respectiveresin manufacturers, no cross fusion between PA 323 pipe and fittings andPA 423 pipe and fittings is permitted.6.3 Rework MaterialClean rework material generatedfrom the manufacturers own produ
29、ction may be used by thesame manufacturer as long as the fittings produced conform tothe requirements of this specification.7. Requirements7.1 Dimensions and Tolerances:7.1.1 Outside DiameterNominal outside diameters of buttfusion fittings shall conform to the nominal iron pipe size (IPS)or copper t
30、ubing size (CTS) dimensions at area of fusion.These dimensions and tolerances shall be as shown in Table 1,Table 2, and Table 3 of this specification.7.1.2 Inside Diameter (CTS Fittings Only)Inside diam-eters of butt fusion fittings for tubing at area of fusion shallconform to the dimensions of the
31、tubing being joined. Thedimensions and tolerances for the fittings are shown in Table 3.7.1.3 Wall ThicknessThe wall thicknesses of butt fusionfittings shall not be less than the minimum specified for thepipe or tubing. The wall thicknesses and tolerances at the areaof fusion shall be as shown in Ta
32、ble 3, Table 4, and Table 5 ofthis specification.7.1.4 MeasurementsThese shall be made in accordancewith Test Method D2122 for roundable pipe.7.1.5 Design DimensionsOverall fitting dimensions maybe as preferred from a design standpoint by the manufacturerand accepted by the purchaser consistent with
33、 7.1.3.7.2 Pressure Test Requirements :7.2.1 Short-Term Rupture Strength for Fittings12 to 12 in.and 90 to 315 mm, Nominal DiameterThe minimum short-term rupture strength of the fitting and fused pipe or tubingshall not be less than the minimum short-term rupture strengthof the pipe or tubing in the
34、 system when tested in accordanceTABLE 1 IPS Sizing System Outside Diameters and Tolerancesfor Fittings for Use with Polyamide Pipe, in.Nominal PipeSizeAverage Outside Diameterat Area of FusionATolerance12340.8401.0500.0080.0081 1.315 0.010114 1.660 0.010112 1.900 0.0102 2.375 0.0103 3.500 0.0124 4.
35、500 0.0156 6.625 0.0188 8.625 0.02510 10.750 0.02712 12.750 0.03614 14.000 0.06316 16.000 0.07218 18.000 0.08120 20.000 0.09021.5 21.500 0.09722 22.000 0.09924 24.000 0.10828 28.000 0.12632 32.000 0.14436 36.000 0.16242 42.000 0.18948 48.000 0.216ADefined as measured14 in. (6.4 mm) from fitting outl
36、et extremity.F1733 132with 10.5.3. These minimum pressures shall be as shown inTable 6 of this specification. Test specimens shall be preparedfor testing in the manner described in 10.5.1 of this specifica-tion. The test equipment, procedures, and failures definitionsshall be as specified in Test Me
37、thod D1599.7.2.2 Short-Term Strength for Fittings 14 to 48 in. and 355to 1600 mm, Nominal DiameterFittings shall not fail whentested in accordance with 10.5.3. The minimum pressure shallbe as shown in Table 6 of this specification. Test specimensshall be prepared for testing in the manner described
38、in 10.2 ofthis specification. The test equipment and procedures shall beas specified in Test Method D1599.7.2.3 Sustained PressureThe fitting and fused pipe ortubing shall not fail, as defined in Test Method D1598, whentested at the time, pressures, and test temperatures selectedfrom test options of
39、fered in Table 7. The test specimens shall beprepared for testing in the manner prescribed in 10.5.1.8. Workmanship, Finish, and Appearance8.1 The manufacture of these fittings shall be in accordancewith good commercial practice so as to produce fittingsmeeting the requirements of this specification
40、. Fittings shall behomogeneous throughout and free of cracks, holes, foreigninclusions, or other injurious defects. The fittings shall be asuniform as commercially practicable in color, opacity, density,and other physical properties.9. Sampling9.1 Parts made for sale under this specification should
41、besampled at a frequency appropriate for the end use intended.When the fittings are to be installed under a system specifica-tion the minimum requirements of that specification must besatisfied.10. Test Methods10.1 GeneralThe test methods in this specification coverfittings to be used with pipe and
42、tubing for gas, water, and otherengineered piping systems. Test methods that are applicablefrom other specifications will be referenced in the paragraphpertaining to the particular test. Certain special test methodsapplicable to this specification only are explained in theappropriate paragraph.10.2
43、ConditioningUnless otherwise specified, conditionthe specimens prior to test at 73.4 6 3.6F (23 6 2C) for notless than6hinair,or1hinwater, for those tests whereconditioning is required and in all cases of disagreement.Newly molded fittings shall be conditioned 40 h prior to test.10.3 Test Conditions
44、Conduct the tests at the standardlaboratory temperature of 73.4 6 3.6F (23 6 2C) unlessotherwise specified.10.4 Dimensions and Tolerances:10.4.1 Outside DiameterMeasure the outside diameterof the fittings at the area of fusion in accordance with the WallThickness section of Test Method D2122 by use
45、of a circum-ferential tape readable to the nearest 0.001 in. (0.02 mm).10.4.2 Inside Diameter (CTS Fittings Only)Use a steppedplug gage to determine the inside diameter of the CTS end ofthe fitting. The plug gage shall be of the go/no go type and shallhave12-in. (12.7-mm) land lengths cut to the min
46、imum insidediameter and maximum inside diameter. A fitting is unaccept-able (no go) if it fits snugly on the minimum inside diameterland of the gage or if it fits loosely on the maximum diameterland of the gage.10.4.3 Wall ThicknessMake a series of measurementsusing a cylindrical anvil tubular micro
47、meter or other accuratedevice at closely spaced intervals to ensure that minimum andmaximum wall thicknesses to the nearest 0.001 in. (0.02 mm)have been determined. Make a minimum of six measurementsat each cross section.10.5 Pressure Testing:10.5.1 Preparation of Specimens for Pressure TestingPrepa
48、re test specimens in such a manner that each, whetherindividual fittings or groups of fittings, is a system incorporat-ing at least one length of pipe or tubing. Fuse all fitting outletswith the appropriate size pipe or tubing. At least one piece ofpipe or tubing in the system shall have a minimum l
49、ength equalto five pipe diameters.10.5.2 Sustained Pressure Test:10.5.2.1 Select the test temperature and pressures from oneof the options offered in Table 7.10.5.2.2 Select the test specimens at random and conditionat the selected option test temperature. Test the fitting speci-mens with water, in accordance with Test Method D1598 at theselected option, stress, and hours of testing.NOTE 4Other test mediums and test conditions than offered in Table7 may be used as agreed upon between the manufacturer and thepurchaser.10
