1、Designation: F3226/F3226M 16Standard Specification forMetallic Press-Connect Fittings for Piping and TubingSystems1This standard is issued under the fixed designation F3226/F3226M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, th
2、e year of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification establishes the performance charac-teristics required for Metallic Press-Connect Fittings
3、 for use inpiping and tubing systems with a maximum allowable workingpressure of three-hundred pounds per square inch (300 psi).These fittings directly attach to pipe or tube by mechanicaldeformation of the pipe or tube or fitting, or a combinationthereof, creating a seal and a restrained joint. The
4、 seal may becreated via the mechanical deformation (of the pipe, tube orfitting) or created independently. Successful completion of thetests described herein constitutes completion of the technicalportion of the qualification process.1.2 The tests specified are applicable only to ascertain theperfor
5、mance characteristics. These tests are not intended foruse in the evaluation of non-Press-Connect Fittings.1.3 Refer to IACS UR P2.7.4, Table-7 for Metallic Press-Connect Fittings applications.1.4 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard. The
6、values stated ineach system may not be exact equivalents; therefore, eachsystem shall be used independently of the other. Combiningvalues from the two systems may result in non-conformancewith the standard.1.5 This standard does not purport to address all of thesafety concerns, if any, associated wi
7、th its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2A53/A53M Specification for Pipe, Steel, Black and Hot-Dipped, Zinc
8、-Coated, Welded and SeamlessA135/A135M Specification for Electric-Resistance-WeldedSteel PipeA262 Practices for Detecting Susceptibility to IntergranularAttack in Austenitic Stainless SteelsA269 Specification for Seamless and Welded AusteniticStainless Steel Tubing for General ServiceA276 Specificat
9、ion for Stainless Steel Bars and ShapesA312/A312M Specification for Seamless, Welded, andHeavily Cold Worked Austenitic Stainless Steel PipesA795/A795M Specification for Black and Hot-Dipped Zinc-Coated (Galvanized) Welded and Seamless Steel Pipe forFire Protection UseB16/B16M Specification for Free
10、-Cutting Brass Rod, Barand Shapes for Use in Screw MachinesB62 Specification for Composition Bronze or Ounce MetalCastingsB75 Specification for Seamless Copper TubeB88 Specification for Seamless Copper Water TubeB124/B124M Specification for Copper and Copper AlloyForging Rod, Bar, and ShapesB140/B14
11、0M Specification for Copper-Zinc-Lead (RedBrass or Hardware Bronze) Rod, Bar, and ShapesB283 Specification for Copper and Copper-Alloy Die Forg-ings (Hot-Pressed)B371/B371M Specification for Copper-Zinc-Silicon AlloyRodB466/B466M Specification for Seamless Copper-NickelPipe and TubeB467 Specificatio
12、n for Welded Copper-Nickel PipeB584 Specification for Copper Alloy Sand Castings forGeneral ApplicationsB858 Test Method forAmmonia Vapor Test for DeterminingSusceptibility to Stress Corrosion Cracking in CopperAlloysB967/B967M Specification for Copper-Zinc-Tin-BismuthAlloy Rod, Bar and WireD2000 Cl
13、assification System for Rubber Products in Auto-motive Applications1This specification is under the jurisdiction of ASTM Committee F25 on Shipsand Marine Technology and is the direct responsibility of Subcommittee F25.11 onMachinery and Piping Systems.Current edition approved Dec. 15, 2016. Publishe
14、d March 2017. DOI: 10.1520/F3226_F3226M-16.2For 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 standards Document Summary page onthe ASTM website.Copyright ASTM Int
15、ernational, 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 the Decision on Principles for theDevelopment of International Standards
16、, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.12.2 ASME Standards:3B1.20.1 Pipe Threads, General Purpose (Inch)B16.51 Copper and Copper Alloy Press-Connect PressureFittingsB36.10 Welded and Seamless Wrought Steel PipeB46.1 Surface Tex
17、ture (Surface Roughness, Waviness andLay)2.3 IACS Document:4UR P2.11 Type Approval of Mechanical JointsUR P2.7.4 Mechanical Joints2.4 ISO Standards:519921 Ships and marine technology Fire resistance ofmetallic pipe components with resilient and elastomericseals Test methods19922 Ships and marine tec
18、hnology Fire resistance ofmetallic pipe components with resilient and elastomericseals Requirements imposed on the test bench2.5 AWS Standards:6ANSI/AWS A5.8M/A5.8 Specification for Filler Metals forBrazing and Braze WeldingAWS B2.2/B2.2M Standard for Brazing Procedure and Per-formance Qualification
19、s2.6 ISO Standards:7ISO 19921 Ships and marine technology Fire resistance ofmetallic components with resilient elastomeric seals TestmethodsISO 19922 Ships and marine technology Fire resistance ofmetallic pipe components with resilient and elastomericseals Requirements imposed on the test bench3. Te
20、rminology3.1 Definitions:3.1.1 class, na group of fitting of a particular design withthe dimensions proportional to pipe or tube outside diameters,made from the same material grade (or combination of grades),for the same rated pressure, or for a rated pressure inverselyproportional to the diameter.3
21、.1.2 FTG, nindicates a pipe-end or tube-end of aPress-Connect fitting (that is, FTG NPT). A fitting endsconfiguration that is dimensionally the same as a pipe or tubeand intended to insert into a Press-Connect fitting.3.1.3 failure, nthe condition of not achieving the desiredperformance, as evidence
22、d by leakage or joint separation.3.1.4 fitting, nconnecting device used to join multiplepipes or tubes or other fittings together to create a workingsystem.3.1.5 joint, ninterface between the fitting and pipe or tubewhere the seal is maintained and mechanical holding strengthis applied or maintained
23、.3.1.6 leakage, nthe escape of fluid or gas from any hole inthe pressure containment wall, sufficient to drip or flow fromthe point of formation or gas bubbles rising to the surface afterthe first minute of submersion.3.1.7 P designation, nindicates a Press-Connect fittingend (that is, P NPT).3.1.8
24、permanent, ncannot be disassembled and reusedafter initial assembly.3.1.9 pipe, nhollow cylindrical shape used to transportliquids, gases, or oil. Pipe is specified by nominal outsidediameter (OD) and schedule (wall thickness).3.1.10 press connection, ntype of fitting joint that attachesdirectly to
25、pipe or tube by mechanical deformation of the pipe,tube or fitting or combination creating a seal and restrainedjoint. The joint is created by use of an elastomeric seal ormechanical deformation, or both. Mechanical deformation isachieved by use of an electro-hydraulic pressing tool. Press-Connect e
26、nds may vary by design as found in Fig. 1.3.1.11 rated pressure, nthe manufacturers recommendedmaximum in-service pressure at a defined temperature.3.1.12 re-test, nperformed when the original test speci-men leaks or separates during testing as a result of any causethat is not related to the design
27、of the fittings being qualified.3.1.13 specimen, na prepared assembly consisting of fit-tings assembled onto a preselected pipe or tube. The specimenis placed into a controlled environment and tested to determineif the assembly meets the specified test requirements.3.1.14 test pressure, nselected pr
28、essure used duringtesting, based upon the rated pressure of the fitting, pipe ortube.3.1.15 tube, nhollow thin-walled cylindrical product thatis usually specified with respect to inside diameter (ID) andwall thickness.4. Classification4.1 Press-Connect fittings shall be classified into the follow-in
29、g categories:4.1.1 Material (see 4.2).4.1.2 Rated operating pressure (see 4.3).4.1.3 Elastomeric Seals (see 4.4).4.2 Fittings shall be made from one or more of the followingmaterial grades:4.2.1 Grade ACarbon steel.4.2.2 Grade BStainless steel.4.2.3 Grade CCopper and Copper-Alloy.4.2.4 Grade DCopper
30、-nickel.4.2.5 Grade EBrass.4.3 The fittings rated pressure shall be one of the followingclasses:3Available from American Society of Mechanical Engineers (ASME), ASMEInternational Headquarters, Two Park Ave., New York, NY 10016-5990, http:/www.asme.org.4Available from International Association of Cla
31、ssification Societies (IACS)Limited, Permanent Secretariat, 6th Floor, 36 Broadway, London SW1H 0BH, UK,http:/www.iacs.org.uk.5Available from International Organization for Standardization (ISO), ISOCentral Secretariat, BIBC II, Chemin de Blandonnet 8, CP 401, 1214 Vernier,Geneva, Switzerland, http:
32、/www.iso.org.6Available from American Welding Society (AWS), 8669 NW 36 St., #130,Miami, FL 33166-6672, http:/www.aws.org.7Available from International Organization for Standardization (ISO), ISOCentral Secretariat, BIBC II, Chemin de Blandonnet 8, CP 401, 1214 Vernier,Geneva, Switzerland, http:/www
33、.iso.org.F3226/F3226M 1624.3.1 Class 1100 psi (0.69 MPa) maximum.4.3.2 Class 2200 psi (1.38 MPa) maximum.4.3.3 Class 3300 psi (2.07 MPa) maximum.4.4 Elastomeric seals:4.4.1 Type 1Ethylene Propylene Diene Monomer(EPDM).4.4.2 Type 2Hydrogenated Nitrile Butadiene Rubber(HNBR).4.4.3 Type 3Fluoro-Elastom
34、er or Synthetic FluorinatedRubber (FKM).NOTE 1When multiple components resulting in more than onematerial grade are specified within an assembly, the combination of gradesused shall be galvanically compatible.NOTE 2Rated pressures may differ within the size range beingqualified. Pressures indicated
35、are at ambient temperature.5. Ordering Information5.1 Orders under this specification shall include the follow-ing:5.1.1 ASTM designation, title, number, and year of issue;5.1.2 Quantity of fittings;5.1.3 Size;5.1.3.1 Nominal pipe size (NPS) and wall thickness (sched-ule).5.1.3.2 Tube size, outside
36、diameter (OD) (actual or nomi-nal) and wall thickness (dimension in decimal fraction ofinches or type K, L, M).5.1.4 Material;5.1.5 Class (operating pressure rating);5.1.6 Configuration (elbow, cross, union, coupling, etc.);5.1.7 Supplementary requirements, if any;5.1.8 Other requirements agreed to
37、between the purchaserand the manufacturer; and5.1.9 Inspection and acceptance as agreed upon between thepurchaser and the supplier.5.2 Optional Ordering Requirements:5.2.1 Certification (see Section 15).6. Materials and Manufacture6.1 MaterialMaterial(s) shall conform to a nationallyrecognized stand
38、ard or may be other materials as agreed tobetween the manufacturer and the purchaser.6.1.1 Fittings may be manufactured from wrought bars,forgings, castings, pipe, or tube.6.2 Carbon Steel Fittings:6.2.1 Carbon steel fittings shall be made from materialmeeting the requirements of Specifications A53/
39、A53M, Type Eand S, A135/A135M,orA795/A795M.6.3 Stainless Steel Fittings:6.3.1 Stainless steel fittings shall be made from materialmeeting the requirements of Specifications A312/A312M,A269,orA276.FIG. 1 Metallic Press-Connect Fitting Joints (Typical, But Not Limited To)F3226/F3226M 1636.4 Copper and
40、 Copper-Alloy Fittings:6.4.1 Wrought copper fittings shall be made from materialmeeting the requirements of Specifications B584 or B88.6.4.2 Cast coppers alloy fittings shall be made from materialmeeting the requirements of Specifications B584 or B62.6.5 Copper-Nickel Fittings:6.5.1 Copper-nickel fi
41、ttings shall be made from materialmeeting the requirements of Specifications B466/B466M orB467.6.6 Brass Fittings:6.6.1 Machined brass fittings shall be made from materialmeeting the requirements of Specifications B140/B140M, B16/B16M, B124/B124M, B371/B371M,orB967/B967M.6.6.2 Forged brass fittings
42、shall be made from materialmeeting the requirements of Specification B283.6.7 Flow of GrainIf machined from hot- or cold-drawnbars fittings shall have their longitudinal axis parallel to thelongitudinal axis of the bar with at least the center one third ofthe bar removed during the manufacturing pro
43、cess unlesstesting shows the center material to be free of injurious defects.6.8 Material QualityMaterial shall be of such quality andpurity that the finished product shall have the properties andcharacteristics to meet the performance requirements of thisspecification.NOTE 3The term “recovered mate
44、rials” is interpreted as thosematerials that have been collected or recovered from solid waste andreprocessed to become a source of raw material, as opposed to extra virginraw materials.6.9 Seal MaterialsSeals shall be as specified in 4.4.6.9.1 Seal materials shall meet the minimum property andtest
45、requirements specified in Classifications D2000.6.9.2 Only seal lubricants as specified by the manufacturershall be used.6.10 Surface Applications and CoatingsSurface applica-tions and coatings if applicable, shall be applied and tested inaccordance with a nationally recognized standard or may beoth
46、er materials as agreed to between the manufacturer and thepurchaser.6.11 FabricationIf fabricated from two or more parts, thecomponents may be welded or brazed.6.11.1 Welding procedure qualification and welding opera-tor performance qualification shall be in accordance withASME Section IX.6.11.1.1 T
47、he welding procedure qualification test shall du-plicate the joint configuration to be used in production.6.11.2 Taper pipe threads shall conform to ASME B1.20.1.6.11.3 Brazed copper connections shall conform to ANSI/AWS A5.8M/A5.8 and AWS B2.2/B2.2M.6.12 Processing Stainless Steel ForgingsAusteniti
48、c stain-less steel components manufactured by hot forge or othersensitizing processes shall be solution annealed and certifiedfree of intergranular precipitation. Practice A262 shall be usedto evaluate carbide precipitation in stainless steels.7. Performance Requirements7.1 Testing RequirementsFitti
49、ngs Shall be subjected to thestandard performance tests specified in Section 13.7.1.1 Specimens can be reused for other primary tests aslong as all requirements herein are complied with for each test.7.1.2 Tests shall be repeated any time changes are made inthe design, material, or manufacturing process, which in theopinion of the purchaser, may degrade performance.7.2 Intermixing of SubcomponentsThe intermixing by thepurchaser of subcomponents of the same design, but ofdifferent brands or trade names, is not permi
