ASTM F1123-1987(2015) Standard Specification for Non-Metallic Expansion Joints《非金属膨胀连接件的标准规格》.pdf

1、Designation: F1123 87 (Reapproved 2015) An American National StandardStandard Specification forNon-Metallic Expansion Joints1This standard is issued under the fixed designation F1123; 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 () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S. Department of Defense.1. Scope1.1 This specification

3、provides 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 standard. The values given in parentheses are mathematicalconversions to SI units that are

4、provided for information onlyand are not considered standard.1.3 The following safety 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 u

5、ser of thisstandard to establish appropriate safety and health practicesand determine the applicability of regulatory limitations priorto use.2. Referenced Documents2.1 ASTM Standards:2A395/A395M Specification for Ferritic Ductile IronPressure-Retaining Castings for Use at Elevated Tempera-turesD141

6、8 Practice for Rubber and Rubber LaticesNomenclature2.2 Federal Standard:3Code of Federal 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

7、Flanged Fittings3. Terminology3.1 Definitions:3.1.1 floating metallic flange typeexpansion joint havingthe tube, fabric plies, and cover brought up from the joint bodyto form a bead.3.1.1.1 DiscussionThis bead is molded into a groove inthe metallic flange. Retaining rings are not required with thisd

8、esign.3.1.2 integral rubber flange typeexpansion joint havingthe tube, fabric plies, and cover brought up from the joint bodyto form a rubber flange.3.1.2.1 DiscussionAdditional plies or other reinforcementmay be used in the flange to meet service conditions. Retainingrings must be used with this de

9、sign.3.1.3 maximum allowable working pressure (MAWP)manufacturers recommended maximum continuous operatingpressure (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

10、 and noiseand provide stress relief in piping systems caused by thermalchanges and other system movements.4. Ordering 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 t

11、hat is the flange-to-flangedimension into which the expansion joint is to be installed.4.1.3 Maximum and minimum 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“Commo

12、n Flange Dimension/Drilling Chart of the TechnicalHandbook on Rubber Expansion Joints and Flexible Pipe1This 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 edit

13、ion approved May 1, 2015. Published June 2015. Originallyapproved in 1987. Last previous edition approved in 2010 as F1123 87 (2010).DOI: 10.1520/F1123-87R15.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of A

14、STMStandards 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, http:/www.access.gpo.gov.4Available from American National Standa

15、rds Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1Connectors5(herein referred to as the Technical Handbook)orin accordance with special customer requ

16、irements.4.1.6 Fluid to be handled.4.1.7 This ASTM specification designation.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 9.2).4.1.11 Certificat

17、ion 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 cordcovered with synt

18、hetic 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 shall be impregnatedwi

19、th 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, must be welded before b

20、einginstalled 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 expansion joints.5.2 Rein

21、forcing 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 D1418. This cover material must consist of 100 %Hypalon or Chlo

22、roprene (not blended with any other elasto-mer) 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 materialshall be certified flame

23、 resistant as outlined in 10.3.5.4 Integral FlangesThe tube, fabric plies, and cover shallbe brought up from the joint body to form an intregal flange.This rubber flange shall extend beyond the bolt holes of theretaining ring.5.5 Floating Metallic FlangesThe metal flanges shallhave a groove to accep

24、t 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 capability of single arch j

25、ointsshall 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 in accordance with the

26、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, B16.5, or B16.24.5.8

27、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 edge next to the rubb

28、er 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 A395/A395M.6. Other Requirements6

29、.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 by tests if ordere

30、d(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 requirement greater th

31、anthe 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 Permissible Varia

32、tions7.1 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 and indentations

33、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 the insidediamete

34、r of the joint out to the bolt holes.5The Technical Handbook on Rubber Expansion Joints and Flexible PipeConnections is available from Fluid Sealing Association, 2017 Walnut St.,Philadelphia, PA 19103.F1123 87 (2015)28.2.2 Bolt holes shall be drilled cleanly through the rubberflange. The retaining r

35、ings 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 cannot attack thereinforcing fabrics.8.2.4 The surface of the rubber flange against which theretaining rings are installed shall be covered

36、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 contribute to the strength of the joint. Its purpose is tokeep fluids from the atmosphere or surroundings from beingabsorbed into the body plie

37、s of fabric. Surface blemishes, suchas flash, nylon wrap markings, grooves, and other indentationsin the cover, over the arch, or in the body area, 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 expansio

38、n 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 of the expansion jointshall be tested to determine its self-extinguishing characteris-tics (see 10.3).9.2 Production TestWhen required by the purchaser,

39、anexpansion joint shall be hydrostatically tested to 1.5 times itsmaximum allowable working pressure at its rated maximumoperating temperature (see 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.

40、Apply pressure at a uniform rate until failure of thejoint occurs. Consider the pressure at which any fluid leakagefirst occurs as the bursting pressure 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

41、 Hydrostatic TestFill each joint to be tested withwater before the application of pressure, allowing all air in thejoint to escape. Apply pressure 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 th

42、ejoint,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 expansion 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

43、 be agreed upon be-tween the purchaser and the supplier as part of the purchasecontract.12. Certification12.1 When specified in the purchase order or contract, themanufacturers certification shall be furnished to the purchaserstating that samples representing each lot have beenmanufactured, tested,

44、and inspected in accordance with thisspecification and the requirements have been met. Whenspecified in the purchase order or contract, a report of the testresults shall be furnished.12.2 When specified in the purchase order or contract, acertified drawing detailing the expansion joint shall be pro-

45、vided.13. Product Marking13.1 Each expansion joint shall be permanently marked ortagged with the following information:13.1.1 Manufacturers name 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.

46、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 expansion joint shall maintainthe quality of the joints that are designed, tested, and marked inaccordance with this specification. At no time shall a joint b

47、esold with this specification designation that does not meet therequirements herein.15. Keywords15.1 arch-type non-metallic expansion joints; expansionjointsASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standar

48、d. 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 revision at any time by the responsible technical committee and must be reviewed

49、 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 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 Intern