1、Designation: F 1123 87 (Reapproved 2004)An American National StandardStandard Specification forNon-Metallic Expansion Joints1This standard is issued under the fixed designation F 1123; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision
2、, 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.This standard has been approved for use by agencies of the Department of Defense.1. Scope1.1 This specification pro
3、vides the minimum requirementsfor construction, materials, performance, and dimensionalrequirements of arch-type non-metallic expansion joints.1.2 The values stated in inch-pound units are to be regardedas the standard. The values given in parentheses are forinformation only.1.3 The following safety
4、 hazards caveat pertains only to thetest method described in this specification. This standard doesnot purport to address all of the safety concerns, if any,associated with its use. It is the responsibility of the user of thisstandard to establish appropriate safety and health practicesand determine
5、 the applicability of regulatory limitations priorto use.2. Referenced Documents2.1 ASTM Standards:2A 395 Specification for Ferritic Ductile Iron Pressure-Retaining Castings for Use at Elevated TemperaturesD 1418 Practice for Rubber and Rubber LaticesNomenclature2.2 Federal Standard:3Code of Federal
6、 Regulations, Title 30, Chapter I, MineSafety and Health Administration2.3 ANSI Standards:4B16.1 Cast Iron Pipe Flanges and Flanged FittingsB16.5 Steel Pipe Flanges and Flanged FittingsB16.24 Bronze Flanges and Flanged Fittings3. Terminology3.1 Definitions:3.1.1 floating metallic flange typeexpansio
7、n joint havingthe tube, fabric plies, and cover brought up from the joint bodyto form a bead.NOTE 1This bead is molded into a groove in the metallic flange.Retaining rings are not required with this design.3.1.2 integral rubber flange typeexpansion joint havingthe tube, fabric plies, and cover broug
8、ht up from the joint bodyto form a rubber flange.NOTE 2Additional plies or other reinforcement may be used in theflange to meet service conditions. Retaining rings must be used with thisdesign.3.1.3 maximum allowable working pressure (MAWP)manufacturers recommended maximum continuous operatingpressu
9、re (lb/in.2(Pa).3.1.4 non-metallic flanged expansion jointflexible con-nector fabricated from natural or synthetic rubber and fabrics,usually with metal reinforcement, to isolate vibration and noiseand provide stress relief in piping systems caused by thermalchanges and other system movements.4. Ord
10、ering Information4.1 Orders for products under this specification shall includethe following information:4.1.1 Inside diameter of connecting pipes (joint ID).4.1.2 Face-to-face dimension that is the flange-to-flangedimension into which the expansion joint is to be installed.4.1.3 Maximum and minimum
11、 operating pressure inpounds-force per square inch gage (pascals).4.1.4 Maximum and minimum operating temperature in F(C).4.1.5 Flange drilling in accordance with the appendix titled“Common Flange Dimension/Drilling Chart of the TechnicalHandbook on Rubber Expansion Joints and Flexible PipeConnector
12、s5(herein referred to as the Technical Handbook)orin accordance with special customer requirements.4.1.6 Fluid to be handled.4.1.7 This ASTM specification designation.1This specification is under the jurisdiction of ASTM Committee F25 on Shipsand Marine Technology and is the direct responsibility of
13、 Subcommittee F25.11 onMachinery and Piping Systems.Current edition approved Nov. 1, 2004. Published November 2004. Originallyapproved in 1987. Last previous edition approved in 1998 as F 1123 87 (1998).2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Ser
14、vice at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from U.S. Government Printing Office Superintendent of Documents,732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401.4Available from Ameri
15、can Society of Mechanical Engineers (ASME), ASMEInternational Headquarters, Three Park Ave., New York, NY 10016-5990.5The Technical Handbook on Rubber Expansion Joints and Flexible PipeConnections is available from Fluid Sealing Association, 2017 Walnut St., Phila-delphia, PA 19103.1Copyright ASTM I
16、nternational, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.4.1.8 Movement data requirements (including shock orvibratory excursions if applicable).4.1.9 Design certification burst test if required (see 9.1).4.1.10 Hydrostatic or special tests if required (see 9
17、.2).4.1.11 Certification of expansion joint if required (see Sec-tion 12).4.1.12 Certified detailed drawing of the expansion joint ifrequired (see 12.2).5. Materials and Manufacture5.1 Expansion joints shall be fabricated with an elastomerictube reinforced with multiple plies of woven cloth or tire
18、cordcovered with synthetic rubber. The inner tube shall be a naturalrubber, synthetic rubber, or blend of synthetic rubber that meetsthe requirements of this specification. The woven cloth or tirecord shall be nylon, polyester, fiberglass, or aramid. Cotton isnot acceptable. The reinforcing fabric s
19、hall be impregnatedwith a compatible friction stock. Additional reinforcement tothe fabric may be provided in the body of the expansion jointand may be solid metal rings or wire imbedded in the syntheticrubber. Tensile properties of the wire, if used, shall be as givenin 5.2. Body rings, if used, mu
20、st be welded before beinginstalled in the expansion joint body. Welds must be 100 %penetration.5.1.1 The list of elastomers used in expansion joints andrubber pipe in accordance with the Technical Handbook5listsacceptable natural rubber and synthetic elastomers for con-struction of non-metallic expa
21、nsion joints.5.2 Reinforcing wire shall have properties that allow theexpansion joints to meet the requirements of this specification.5.3 All expansion joints shall be manufactured with a coverof Hypalon or Neoprene (Chloroprene), in accordance withPractice D 1418. This cover material must consist o
22、f 100 %Hypalon or Chloroprene (not blended with any other elas-tomer) plus normal additives to provide for curing and adurometer between 50 and 75 on the Shore A Scale. Neopreneand Hypalon are selected as the best fire-retardant elastomer ofthe common types used for expansion joints. This materialsh
23、all be certified flame resistant as outlined in 10.3.5.4 Integral FlangesThe tube, fabric plies, and covershall be brought up from the joint body to form an intregalflange. This rubber flange shall extend beyond the bolt holes ofthe retaining ring.5.5 Floating Metallic FlangesThe metal flanges shall
24、have a groove to accept the molded bead in the body at eachend of the expansion joint bellows.5.6 ArchesArches may be either straight sided or longradius depending on the manufacturers standard construction.The arch size and shape determine the movement capability ofthe joint. Minimum movement capab
25、ility of single arch jointsshall be in accordance with the Technical Handbook5tabletitled “Expansion Joint Movement Force/Spring Rate Capabil-ity. Movement capability information for multiple arch de-signs shall be available from the manufacturer.5.7 Metallic Flanges:5.7.1 Flanges shall be drilled i
26、n accordance with the Tech-nical Handbook5appendix titled “Common Flange Dimension/Drilling Chart or in accordance with the customer order asrequired, to match the mating flanges.5.7.2 Metallic flanges shall meet the material requirementsand pressure-temperature ratings in accordance with ANSIB16.1,
27、 B16.5, or B16.24.5.8 Retaining RingsRetaining rings for the integral flangetype are installed behind the flanges and are drilled to matchthe flange drilling. The sections supplied for each flange shouldbe split at the bolt holes to ensure a proper seal at all pointswhen the bolts are tightened. The
28、 edge next to the rubber flangeshall be broken or bevelled to prevent cutting the rubberflanges. Retaining rings must be a minimum thickness of38 in.(9.5 mm) and shall be made of steel or ductile iron. Carbonsteel shall be galvanized. Ductile iron shall be in accordancewith Specification A 395.6. Ot
29、her Requirements6.1 All expansion joints shall be designed for a minimumburst pressure of four times the maximum allowable workingpressure. The design shall be based on analytical or experi-mental test of expansion joints of similar construction, class,type, and size. The design shall be certified b
30、y tests if ordered(see 4.1.9).6.2 Performance RequirementsSingle arch expansionjoint movement shall not exceed the limits of the TechnicalHandbook5table referred to in 5.6 unless the manufacturercertifies that a proposed design can exceed the listed minimummovement capability to meet a special requi
31、rement greater thanthe minimum listed. Multiple arch-joint movement shall be ofthe manufacturers certified design.6.3 Pressure RatingExpansion joints shall be limited tothe pressures listed in the table “Pressure Characteristics ofRubber Expansion Joints of the Technical Handbook.57. Dimensions and
32、Permissible Variations7.1 Expansion joints shall be dimensioned in accordancewith the Technical Handbook5table titled “Expansion JointMovement/Force/Spring Rate Capability.8. Workmanship, Finish, and Appearance8.1 TubeThe tube shall be free from cuts and breaks orsevere abrasions. Small depressions
33、and indentations are ac-ceptable as long as the surface of the elastomer is not broken.8.2 Integral Rubber and Fabric Flange:8.2.1 The face of an integral rubber and fabric flange shallbe free of cuts or obvious breaks and shall be covered withrubber. The most critical portion of the flange is from
34、the insidediameter of the joint out to the bolt holes.8.2.2 Bolt holes shall be drilled cleanly through the rubberflange. The retaining rings shall be checked for proper align-ment with bolt holes.8.2.3 The outer edge of the flange shall be sealed withrubber, so that moisture from the atmosphere can
35、not attack thereinforcing fabrics.8.2.4 The surface of the rubber flange against which theretaining rings are installed shall be covered with rubber. Thesurface may be irregular and building form tooling marks arenot objectionable.8.3 Expansion Joint Cover and BodyThe cover of a jointdoes not contri
36、bute to the strength of the joint. Its purpose is toF 1123 87 (2004)2keep fluids from the atmosphere or surroundings from beingabsorbed into the body plies of fabric. Surface blemishes, suchas flash, nylon wrap markings, grooves, and other indentationsin the cover, over the arch, or in the body area
37、, are not harmfulas long as the body fabric is not exposed.9. Number and Type of Tests9.1 Prototype Test:9.1.1 When required by the purchaser, an expansion joint ofeach size and type shall be burst tested to determine itsmaximum allowable working pressure (see 10.1).9.1.2 The outer covering material
38、 of the expansion jointshall be tested to determine its self-extinguishing characteris-tics (see 10.3).9.2 Production TestWhen required by the purchaser, anexpansion joint shall be hydrostatically tested to 1.5 times itsmaximum allowable working pressure at its rated maximumoperating temperature (se
39、e 10.2).10. Test Methods10.1 Burst TestFill each joint to be tested with waterbefore the application of pressure, allowing all air in the jointto escape. Apply pressure at a uniform rate until failure of thejoint occurs. Consider the pressure at which any fluid leakagefirst occurs as the bursting pr
40、essure of the joint. The maximumallowable working pressure of the joint shall be less than orequal to14 the bursting pressure determined by this test.10.2 Hydrostatic TestFill each joint to be tested withwater before the application of pressure, allowing all air in thejoint to escape. Apply pressure
41、 at a uniform rate up to the testpressure. The joint shall show no sign of leakage at the testpressure.10.3 Flame Resistance TestTest four specimens of thejoint,12 by 6 in. (12.7 by 152.4 mm) by the thickness of theexpansion joint, in accordance with 30 CFR 18.65(b) through(d). Consider the expansio
42、n joint flame resistant if the tests ofthe four specimens meet the test requirements in 30 CFR18.65(e).11. Inspection11.1 Inspection of the material shall be agreed upon be-tween the purchaser and the supplier as part of the purchasecontract.12. Certification12.1 When specified in the purchase order
43、 or contract, themanufacturers certification shall be furnished to the purchaserstating that samples representing each lot have been manufac-tured, tested, and inspected in accordance with this specifica-tion and the requirements have been met. When specified in thepurchase order or contract, a repo
44、rt of the test results shall befurnished.12.2 When specified in the purchase order or contract, acertified drawing detailing the expansion joint shall be pro-vided.13. Product Marking13.1 Each expansion joint shall be permanently marked ortagged with the following information:13.1.1 Manufacturers na
45、me or trademark.13.1.2 Nominal diameter.13.1.3 Manufactured date (month and year).13.1.4 Maximum allowable working pressure and tempera-ture (psi/F (Pa/C).13.1.5 Face-to-face dimension.13.1.6 ASTM designation and year of issue of this specifi-cation.14. Quality Assurance14.1 The manufacturer of the
46、expansion joint shall maintainthe quality of the joints that are designed, tested, and marked inaccordance with this specification. At no time shall a joint besold with this specification designation that does not meet therequirements herein.15. Keywords15.1 arch-type non-metallic expansion joints;
47、expansionjointsASTM International takes no position respecting 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 s
48、uch rights, are entirely their own responsibility.This 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 add
49、itional standardsand should be addressed to ASTM International 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 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 t
