1、Designation: F2098 08F2098 15Standard Specification forStainless Steel Clamps for Securing SDR9 Cross-linkedPolyethylene (PEX) Tubing to Metal Insert and Plastic InsertFittings1,21This standard is issued under the fixed designation F2098; the number immediately following the designation indicates th
2、e 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 stainless steel clamps f
3、or use with fourfive sizes of insert fittings that comply with F1807 or F2159,and cross-linked polyethylene (PEX) plastic tubing that complies with F876 or F877. These clamps are intended as an alternativeto the copper-alloy crimp-rings of Specifications F1807 or F2159for use in 100 psi (689.5 kPa)
4、cold- and hot-water distributionsystems operating at temperatures up to and including 180F (82C). Included are requirements for materials, workmanship,dimensions and marking of the stainless steel clamps; requirements for deforming the clamps; which apply to assemblies of PEXtubing and Specification
5、s F1807 and F2159, insert fittings secured with deformed clamps per this specification.1.2 The values stated in inch-pound units are to be regarded as the standard. The SI values statedgiven in parentheses aremathematical conversions to SI units that are provided for information purposes.only and ar
6、e not considered standard.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prio
7、r to use.2. Referenced Documents2.1 ASTM Standards:2A240/A240M Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels andfor General ApplicationsD618 Practice for Conditioning Plastics for TestingD1598 Test Method for Time-to-Failure of Plastic Pi
8、pe Under Constant Internal PressureD1599 Test Method for Resistance to Short-Time Hydraulic Pressure of Plastic Pipe, Tubing, and FittingsD1600 Terminology for Abbreviated Terms Relating to PlasticsD2122 Test Method for Determining Dimensions of Thermoplastic Pipe and FittingsE18 Test Methods for Ro
9、ckwell Hardness of Metallic MaterialsF412 Terminology Relating to Plastic Piping SystemsF876 Specification for Crosslinked Polyethylene (PEX) TubingF877 Specification for Crosslinked Polyethylene (PEX) Hot- and Cold-Water Distribution SystemsF1807 Specification for Metal Insert Fittings Utilizing a
10、Copper Crimp Ring for SDR9 Cross-linked Polyethylene (PEX) Tubingand SDR9 Polyethylene of Raised Temperature (PE-RT) TubingF2159 Specification for Plastic Insert Fittings Utilizing a Copper Crimp Ring for SDR9 Cross-linked Polyethylene (PEX)Tubing and SDR9 Polyethylene of Raised Temperature (PE-RT)
11、Tubing3. Terminology3.1 Definitions are in accordance with Terminology F412 and abbreviations are in accordance with Terminology D1600, unlessotherwise indicated.1 This specification is under the jurisdiction of ASTM Committee F17 on Plastic Piping Systems and is the direct responsibility of Subcomm
12、ittee F17.10 on Fittings.Current edition approved March 1, 2008Nov. 1, 2015. Published March 2008February 2016. Originally approved 2001. Last previous edition approved in 20042008 asF20980408.1. DOI: 10.1520/F2098-08.10.1520/F2098-15.2 For referencedASTM standards, visit theASTM website, www.astm.o
13、rg, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what chang
14、es have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the offici
15、al document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States14. Classification4.1 This specification covers one class of stainless steel clamps in fourfive sizes suitable for securing PEX tubing that meetsthe requirements of Specificat
16、ions F876 or F877to insert fittings that meet the requirements of Specifications F1807 and F2159.5. Materials and Manufacture5.1 ClampsClamps shall be made from material meeting the requirements of Specification A240/A240M stainless steel UNSS304000.6. General Requirements6.1 The following sections
17、of Specification F877 constitute a 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 that referenced in 6.1 above, appears in this specification, it containsadditional requirements that supplement
18、 those appearing in Specification F877.6.3 GeneralAll performance tests shall be performed on assemblies of fittings, clamps and PEX tubing. Clamps shall meetthe material and dimensional requirements of this specification. Metal insert fittings shall meet the material and dimensionalrequirements of
19、Specification F1807. Plastic insert fittings shall meet the material and dimensional requirements of SpecificationF2159. PEX tubing shall meet the requirements of Specification F876 or F877. Assembly of test specimens shall be in accordancewith 9.1.1. Each assembly shall contain at least two (2) joi
20、nts. Use separate sets of assemblies for each performance testrequirement.7. Dimensions7.1 Dimensions and TolerancesThe dimensions and tolerances of clamps shall be as shown in Figs.Figs. 1-4 14.and Table1 and Table 2.8. Workmanship, Finish, and Appearance8.1 The surfaces of the clamps shall be smoo
21、th and free of foreign material. Clamps shall be free of cracks, holes, corrosion,voids, foreign inclusions, or other defects that are visible to the unaided eye that have potential to affect the clamp integrity.8.1.1 The manufacturer shall verify that any residual manufacturing substances on clamps
22、 are compatible with PEX Systemcomponents such as PEX tube or insert fittings.9. Assembly9.1 Clamp JointsInsert fittings shall be joined to PEX tubing by deforming and locking a stainless steel clamp around the outercircumference of the tubing, forcing the tubing material into annular spaces formed
23、by the ribs on the fitting. Metal insert fittingsshall meet the material and dimensional requirements of Specification F1807. Plastic insert fittings shall meet the material anddimensional requirements of Specification F2159. PEX tubing shall meet the requirements of Specifications F876 or F877. Cla
24、mpsshall meet the dimensional and material requirements of this specification.9.1.1 Clamping ProcedureThe clamping procedure shall be as follows: slide the clamp onto the tubing, insert the ribbed endof the fitting into the end of the tubing until the tubing contacts the shoulder of the fitting or t
25、ube stop. The clamp shall then bepositioned on the tubing so the edge of the clamp is 18 to 14 in. (3.2 to 6.4 mm) from the end of the tube. The ratcheting clampingFIG. 1 Design and LayoutF2098 152tool shall be used to close the clamp. The tool will not release until the clamp is properly closed. Ra
26、tcheting hand tools shallconform to the dimensional requirements of Fig. 3Fig. 39.1.2 Clamping ToolsClamps and ratcheting hand tools from different manufacturers have similar appearances. Clamps shallbe installed using the tools and calibration methods recommended by the clamp manufacturer.FIG. 2 Cr
27、itical DimensionsOpenmax minin. 0.591 0.511mm (15.0) (13.0)Closed dimensions, for ratcheting hand tool, to be calibrated in accordance with the clamp manufacturers specified dimensional recommendations and practices.FIG. 3 Ratcheting Hand Tool Critical DimensionsArrows indicate various areas that ca
28、n be checked or gauged, after crimping, to validate an effective final assembly. This validation should be conducted in accordancewith the clamp manufacturers specified dimensional recommendations and practices.FIG. 4 Dimensional Checks to Validate Effective Final AssemblyF2098 15310. Retest10.1 If
29、any failure occurs, a retest shall be conducted only if agreed upon between the purchaser and the seller. Failure in theretest indicates the quantity of clamps represented by the sample does not conform to the requirements of this specification.11. Product Marking11.1 Quality of MarkingThe marking s
30、hall be applied to the clamps in such a manner that it remains legible after installationand inspection.11.2 Content of Marking:11.2.1 Marking on clamps shall include manufacturers name or trademark, or some other identifying mark, and if size permits,the designation, “F2098.”11.2.1.1 Where recessed
31、 marking is used on clamps, care shall be taken to see that the marking shall not cause cracks or reducethe wall thickness below the minimum specified.11.2.2 Marking on packaging shall include manufacturers name, clamp size,name; date of manufacture or manufacturing lotcode, or both; clamp size; and
32、 “ASTM F2098 for use with ASTM F1807 and F2159 insert fittings.”fittings and ASTM F876 PEXTubing.”12. Quality Assurance12.1 When the clamp or clamp packing is marked with theASTM designation “F2098” the manufacturer affirms that the productwas manufactured, inspected, sampled, and tested in accordan
33、ce with this specification and has been found to meet therequirements of this specification. The manufacturer further affirms that when clamps so marked are used to in accordance withthis specification to secure PEX tubing conforming to F876 or F877 to insert fittings conforming to Specifications F1
34、807 or F2159,the assembled joints will conform to the performance requirements of this specification.TABLE 1 Design and Layout DimensionsSize C E T W38 in. 0.472 + 3T(12.0 + 3T)0.314(8.0)0.033 (0.84)0.023 (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(
35、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 cross-linked polyethylene; metal insert fittings; PEX; stainless steel clampsASTM International takes no position respecting the validity of any p
36、atent 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.This standard is subject to revisi
37、on 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 International Headquarters. Your com
38、ments 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 below.This standard is copyright
39、ed 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-
40、mail); 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:/ The stainless steel clamp described in this standard is covered by a patent. Interested parties are invited to submit information regarding the identification of an alternativeto this patented item to ASTM Headquarters. Your comments will receive careful consideration at a meeting of F17, which you may attend.F2098 155
