1、Designation: F2098 18 An American National StandardStandard Specification forStainless Steel Clamps for Securing SDR9 Cross-linkedPolyethylene (PEX) Tubing and SDR9 Polyethylene ofRaised Temperature (PE-RT) to Metal Insert and PlasticInsert Fittings1This standard is issued under the fixed designatio
2、n F2098; the number immediately following the designation 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 rea
3、pproval.1. Scope*1.1 This specification covers stainless steel clamps for usewith five sizes of insert fittings that comply with F1807 orF2159, and cross-linked polyethylene (PEX) plastic tubing thatcomplies with F876 and for use with polyethylene of raisedtemperature (PE-RT) tubing that complies wi
4、th SpecificationF2769. These clamps are intended as an alternative to thecopper-alloy crimp-rings of Specifications F1807 for use in100 psi (689.5 kPa) cold- and hot-water distribution systemsoperating at temperatures up to and including 180F (82C).Included are requirements for materials, workmanshi
5、p, dimen-sions and marking of the stainless steel clamps; requirementsfor deforming the clamps; which apply to assemblies of PEXtubing and Specifications F1807 and F2159, insert fittingssecured with deformed clamps per this specification.1.2 The values stated in inch-pound units are to be regardedas
6、 standard. The values given in parentheses are mathematicalconversions 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 th
7、is standard to establish appro-priate safety, health, and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Dec
8、ision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2A240/A240M Specification for Chromium and Chromium-Nickel Stainless Steel Plate,
9、 Sheet, and Strip for PressureVessels and for General ApplicationsD1600 Terminology forAbbreviated Terms Relating to Plas-ticsF412 Terminology Relating to Plastic Piping SystemsF876 Specification for Crosslinked Polyethylene (PEX) Tub-ingF877 Specification for Crosslinked Polyethylene (PEX) Hot-and
10、Cold-Water Distribution SystemsF1807 Specification for Metal Insert Fittings Utilizing aCopper Crimp Ring for SDR9 Cross-linked Polyethylene(PEX) Tubing and SDR9 Polyethylene of Raised Tem-perature (PE-RT) TubingF2159 Specification for Plastic Insert Fittings Utilizing aCopper Crimp Ring for SDR9 Cr
11、oss-linked Polyethylene(PEX) Tubing and SDR9 Polyethylene of Raised Tem-perature (PE-RT) TubingF2769 Specification for Polyethylene of Raised Temperature(PE-RT) Plastic Hot and Cold-Water Tubing and Distri-bution Systems3. Terminology3.1 Definitions are in accordance with Terminology F412and abbrevi
12、ations are in accordance with Terminology D1600,unless otherwise indicated.4. Classification4.1 This specification covers one class of stainless steelclamps in five sizes suitable for securing PEX tubing that meets1This specification is under the jurisdiction of ASTM Committee F17 on PlasticPiping S
13、ystems and is the direct responsibility of Subcommittee F17.10 on Fittings.Current edition approved Nov. 15, 2018. Published February 2019. Originallyapproved 2001. Last previous edition approved in 2015 as F209815. DOI:10.1520/F2098-18.2For referenced ASTM standards, visit the ASTM website, www.ast
14、m.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.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box
15、 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, Guides and Recommendations issued by th
16、e World Trade Organization Technical Barriers to Trade (TBT) Committee.1the requirements of Specifications F876 or PE-RT tubing thatmeets the requirements of Specification F2769, to insert fittingsthat meet the requirements of Specifications F1807 and F2159.5. Materials and Manufacture5.1 ClampsClam
17、ps shall be made from material meetingthe requirements of Specification A240/A240M stainless steelUNS S304000.6. General Requirements6.1 The following sections of Specification F877 and Speci-fication F2769 constitute a part of this specification. Only thesections of the referenced standard which ap
18、ply to the type ofpipe being tested shall be required as part of this section.6.1.1 Requirements,6.1.2 Test Methods, and6.1.3 Retest and Rejection.6.2 In addition, when a section with a title identical to thatreferenced in 6.1 above, appears in this specification, itcontains additional requirements
19、that supplement those appear-ing in Specification F877 or Specification F2769 .6.3 GeneralAll performance tests shall be performed onassemblies of fittings, clamps and PEX or PE-RT tubing.Clamps shall meet the material and dimensional requirementsof this specification. Metal insert fittings shall me
20、et thematerial and dimensional requirements of Specification F1807.Plastic insert fittings shall meet the material and dimensionalrequirements of Specification F2159. PEX tubing shall meetthe requirements of Specification F876 and PE-RT tubing shallmeet the requirements of Specification F2769.Assemb
21、ly of testspecimens shall be in accordance with 9.1.1. Each assemblyshall contain at least two (2) joints. Use separate sets ofassemblies for each performance test requirement.7. Dimensions7.1 Dimensions and TolerancesThe dimensions and toler-ances of clamps shall be as shown in Figs. 1-4 and Table
22、1 andTable 2.8. Workmanship, Finish, and Appearance8.1 The surfaces of the clamps shall be smooth and free offoreign material. Clamps shall be free of cracks, holes,corrosion, voids, foreign inclusions, or other defects that arevisible to the unaided eye that have potential to affect the clampintegr
23、ity.8.1.1 The manufacturer shall verify that any residual manu-facturing substances on clamps are compatible with PEX andPE-RT System components such as PEX and PE-RT tube orinsert fittings.9. Assembly9.1 Clamp JointsInsert fittings shall be joined to PEX orPE-RT tubing by deforming and locking a st
24、ainless steel clamparound the outer circumference of the tubing, forcing thetubing material into annular spaces formed by the ribs on thefitting. Metal insert fittings shall meet the material and dimen-sional requirements of Specification F1807. Plastic insertfittings shall meet the material and dim
25、ensional requirementsof Specification F2159. PEX tubing shall meet the require-ments of Specifications F876 and PE-RT tubing shall meet therequirements of Specification F2769. Clamps shall meet thedimensional and material requirements of this specification.9.1.1 Clamping ProcedureThe clamping proced
26、ure shallbe as follows: slide the clamp onto the tubing, insert the ribbedend of the fitting into the end of the tubing until the tubingcontacts the shoulder of the fitting or tube stop. The clamp shallthen be positioned on the tubing so the edge of the clamp is18to14 in. (3.2 to 6.4 mm) from the en
27、d of the tube. Theratcheting clamping tool shall be used to close the clamp. Thetool will not release until the clamp is properly closed.Ratcheting hand tools shall conform to the dimensional re-quirements of Fig. 3.9.1.2 Clamping ToolsClamps and ratcheting hand toolsfrom different manufacturers hav
28、e similar appearances.Clamps shall be installed using the tools and calibrationmethods recommended by the clamp manufacturer.10. Retest10.1 If any failure occurs, a retest shall be conducted only ifagreed upon between the purchaser and the seller. Failure in theretest indicates the quantity of clamp
29、s represented by thesample does not conform to the requirements of this specifi-cation.FIG. 1 Design and LayoutF2098 18211. Product Marking11.1 Quality of MarkingThe marking shall be applied tothe clamps in such a manner that it remains legible afterinstallation and inspection.11.2 Content of Markin
30、g:11.2.1 Marking on clamps shall include manufacturersname or trademark, or some other identifying mark, and if sizepermits, the designation, “F2098.”FIG. 2 Critical DimensionsOpenmax minin. 0.591 0.511mm (15.0) (13.0)Closed dimensions, for ratcheting hand tool, to be calibrated in accordance with t
31、he clamp manufacturers specified dimensional recommendations and practices.FIG. 3 Ratcheting Hand Tool Critical DimensionsArrows indicate various areas that can be checked or gauged, after crimping, to validate an effective final assembly. This validation should be conducted in accordancewith the cl
32、amp manufacturers specified dimensional recommendations and practices.FIG. 4 Dimensional Checks to Validate Effective Final AssemblyF2098 18311.2.1.1 Where recessed marking is used on clamps, careshall be taken to see that the marking shall not cause cracks orreduce the wall thickness below the mini
33、mum specified.11.2.2 Marking on packaging shall include manufacturersname; date of manufacture or manufacturing lot code, or both;clamp size; and “ASTM F2098 for use with ASTM F1807 andF2159 insert fittings and ASTM F876 PEX, or F2769 PE-RTTubing.”Example:Manufacturer ABC Co.R322 / Nov 18, 201823.3A
34、STM F2098 for use with ASTM F1807 and F2159 insertfittings and ASTM F876 PEX or F2769 PE-RT Tubing12. Quality Assurance12.1 When the clamp or clamp packing is marked with theASTM designation “F2098” the manufacturer affirms that theproduct was manufactured, inspected, sampled, and tested inaccordanc
35、e with this specification and has been found to meetthe requirements of this specification. The manufacturer furtheraffirms that when clamps so marked are used in accordancewith this specification to secure PEX tubing conforming toF876 or F877 and PE-RT tubing conforming to SpecificationF2769 to ins
36、ert fittings conforming to Specifications F1807 orF2159, the assembled joints will conform to the performancerequirements of this specification.13. Dimensions13.1 Design and Layout, as noted in Fig. 1 and Table 1 arefor “reference” only. Specific dimensions and clamp features,other than what is note
37、d in Fig. 2 and Table 2 as “CriticalDimensions” are to be left at the discretion of the individualmanufacturer to accommodate varying manufacturing pro-cesses.14. Tolerances14.1 Tolerances on all critical dimensions (D) are 60.010in. (60.25 mm). “Thickness” (T) tolerances 6 0.001 in. (60.025 mm).15.
38、 Keywords15.1 cold and hot water distribution; cross-linked polyeth-ylene; polyethylene of raised temperature; metal insert fittings;PEX; PE-RT; stainless steel clampsSUMMARY OF CHANGESCommittee F17 has identified the location of selected changes to this standard since the last issue (F209815)that m
39、ay impact the use of this standard.(1) Added SDR9 Polyethylene of raised temperature (PE-RT)to the Title.(2) Added polyethylene of raised temperature (PE-RT) tubingthat complies with Specification F2769 to 1.1.(3) Added Specification F2769 to 2.1,11.2.2, and 12.1.(4) Added PE-RT tubing that meeting
40、the requirements ofSpecification F2769 in 4.1, 6.3, and 9.1.(5) Added Specification F2769 and sections of the referencedstandard in 6.1 and 6.2.(6) Added cold and hot water distribution to Section 15.TABLE 1 Design and Layout DimensionsSize CETW38 in. 0.472 + 3T(12.0 + 3T)0.314(8.0)0.033 (0.84)0.023
41、 (0.58)0.276(7.0)12 in. 0.598 + 3T(15.2 + 3T)0.394 (10.0)0.034 (0.86)0.030(0.76)0.276 and 0.315(7.0 and 8.0)58 in. 0.717 + 3T(18.2 + 3T)0.394(10.0)0.034 (0.86)0.030 (0.76)0.276(7.0)34 in. 0.842 + 3T(21.4 + 3T)0.394(10.0)0.038 (0.97)0.030 (0.76)0.354 or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 185
