1、Designation: F 2098 04e1An American National StandardStandard Specification forStainless Steel Clamps for Securing SDR9 Cross-linkedPolyethylene (PEX) Tubing to Metal Insert Fittings12This standard is issued under the fixed designation F 2098; the number immediately following the designation indicat
2、es 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 (e) indicates an editorial change since the last revision or reapproval.e1NOTEFigure 4 was editorially revised in November 2005.
3、1. Scope1.1 This specification covers stainless steel clamps for usewith four sizes of insert fittings that comply with F 1807, andcross-linked polyethylene (PEX) plastic tubing that complieswith F 876 or F 877. These clamps are intended as an alterna-tive to the copper-alloy crimp-rings of Specific
4、ations F 1807 orF 2159 for use in 100 psi (689.5 kPa) cold- and hot-waterdistribution systems operating at temperatures up to andincluding 180F (82C). Included are requirements for mate-rials, workmanship, dimensions and marking of the stainlesssteel clamps; requirements for deforming the clamps; wh
5、ichapply to assemblies of PEX tubing and Specifications F 1807and F 2159, insert fittings secured with deformed clamps perthis specification.1.2 The values stated in inch-pound units are to be regardedas the standard. The SI values stated in parentheses areprovided for information purposes.1.3 This
6、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 determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2
7、.1 ASTM Standards:3A 240 Specification for Heat-Resisting Chromium andChromium-Nickel Stainless Steel Plate, Sheet, and Stripfor Pressure VesselsD 618 Practice for Conditioning Plastics and ElectricalInsulating Materials for TestingD 1598 Test Method for Time-To-Failure of Plastic PipeUnder Constant
8、 Internal PressureD 1599 Test Method for Short-Time, Hydraulic FailurePressure of Plastic Pipe, Tubing, and FittingsD 1600 Terminology for Abbreviated Terms Relating toPlasticsD 2122 Test Method for Determining Dimensions of Ther-moplastic Pipe and FittingsE 18 Test Methods for Rockwell Hardness and
9、 SuperficialHardness of Metallic MaterialsF 412 Terminology Relating to Plastic Piping SystemsF 876 Specification for Cross-linked Polyethylene (PEX)TubingF 877 Specification for Cross-linked Polyethylene (PEX)Plastic Hot- and Cold-Water Distribution SystemsF 1807 Specification for Metal Insert Fitt
10、ings Utilizing aCopper Crimp Ring for SDR9 Cross-linked Polyethylene(PEX) TubingF 2159 Specification for Plastic insert Fitting Utilizing aCopper Crimp Ring for SDR9 Cross-linked Polyethylene(PEX) Tubing.3. Terminology3.1 Definitions are in accordance with Terminology F 412and abbreviations are in a
11、ccordance with Terminology D 1600,unless otherwise indicated.4. Classification4.1 This specification covers one class of stainless steelclamps in four sizes suitable for securing PEX tubing thatmeets the requirements of Specifications F 876 or F 877 toinsert fittings that meet the requirements of Sp
12、ecificationsF 1807 and F 2159.1This 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 April 1, 2004. Published June 2004. Originallyapproved 2001. Last previous edition a
13、pproved in 2001 as F2098012The stainless steel clamp described in this standard is covered by a patent.Interested parties are invited to submit information regarding the identification of analternative to this patented item toASTM Headquarters.Your comments will receivecareful consideration at a mee
14、ting of F17, which you may attend.3For 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.1Copyright ASTM Internation
15、al, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.5. Materials and Manufacture5.1 ClampsClamps shall be made from material meetingthe requirements of Specification A 240 stainless steel UNSS304000.6. General Requirements6.1 The following sections of Specificatio
16、n F 877 constitutea part of this specification.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 specifcation, it containsadditional requirements that supplement those appearing
17、inSpecification F 877.6.3 GeneralAll performance tests shall be performed onassemblies of fittings, clamps and PEX tubing. Clamps shallmeet the material and dimensional requirements of this speci-fication. Fittings shall meet the material and dimensionalrequirements of F 1807. PEX tubing shall meet
18、the require-ments of Specification F 876 or F 877. Assembly 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 tol-er
19、ances of clamps shall be as shown in Figs. 1-4.8. Workmanship, Finish and Appearance8.1 The surfaces of the clamps shall be smooth and free offoreign material. Clamps shall be free of cracks, holes, corro-sion, voids, foreign inclusions, or other defects that are visibleto the unaided eye that have
20、potential to affect the clampintegrity.9. Assembly9.1 Clamp JointsInsert fittings shall be joined to PEXtubing by deforming and locking a stainless steel clamp aroundthe outer circumference of the tubing, forcing the tubingmaterial into annular spaces formed by the ribs on the fitting.Insert fitting
21、s shall meet the dimensional and material require-ments of F 1807. PEX tubing shall meet the requirements ofSpecifications F 876 or F 877. Clamps shall meet the dimen-sional and material requirements of this specification.9.1.1 Clamping ProcedureThe clamping procedure shallbe as follows: slide the c
22、lamp 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 end of the tube. Theratcheting clampi
23、ng 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. 5.FIG. 1 Stainless Steel Clamp Dimensions,38-in. nominalF209804e12FIG. 2 Stainless Steel Clamp Dimensions,12-in. nominalF
24、IG. 3 Stainless Steel Clamp Dimensions,34-in. nominalF209804e1310. 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 clamps represented by thesample does not conform to the requirement
25、s of this specifi-cation.11. 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 Marking:11.2.1 Marking on clamps shall include manufacturersname or trademark, or some other identify
26、ing mark, and if sizepermits, “F 2098 for F 1807”.11.2.1.1 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 minimum specified.11.2.2 Marking on packaging shall include manufacturersname, clamp size, and
27、“ASTM F 2098 for use with ASTMF 1807 insert fittings.”All dimensions are shown in inches.Tolerance on all dimensionsexcept thickness = 60.010 inches.Tolerance on thickness = 6 0.001 inches.FIG. 4 Stainless Steel Clamp Dimensions, 1-in. nominalOpen Closed: Loaded Closed: Unloadedmax min max min max m
28、ininches 0.591 0.511 0.071 0.031 0.063 0.031mm (15.0) (13.0) (1.8) (0.8) (1.6) (0.8)FIG. 5 Ratcheting Hand Tool Critical DimensionsF209804e1412. Quality Assurance12.1 When the clamp or clamp packing is marked with theASTM designation “F 2098 for F 1807”, the manufactureraffirms that the product was
29、manufactured, inspected, sampled,and tested in accordance with this specification and has beenfound to meet the requirements of this specification. Themanufacturer further affirms that when clamps so marked areused to in accordance with this specification to secure PEXtubing conforming to F 876 or F
30、 877 to insert fittings conform-ing to F 1807, the assembled joints will conform to theperformance requirements of this specification.13. Keywords13.1 cold and hot water distribution; cross-linked polyeth-ylene; metal insert fittings; PEX; stainless steel clampsASTM International takes no position r
31、especting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.Thi
32、s standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM Inte
33、rnational Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown
34、below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).F209804e15
