ASTM C1173-2010 Standard Specification for Flexible Transition Couplings for Underground Piping Systems《地下管道系统用柔性过渡管联接器标准规格》.pdf
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1、Designation: C1173 10Standard Specification forFlexible Transition Couplings for Underground PipingSystems1This standard is issued under the fixed designation C1173; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last
2、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 describes the properties of devices orassemblies suitable for use as flexible transition couplings,herei
3、nafter referred to as couplings, for underground drainageand sewer piping systems.1.2 Couplings that may include bushings, inserts, or shearrings and conform to the requirements of this standard aresuitable for joining plain end pipe or fittings. The pipe to bejoined shall be of similar or dissimila
4、r materials, size, or both.1.3 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.4 The ASTM standards referenced herein shall be consid-e
5、red mandatory.1.5 The committee with jurisdiction over this standard is notaware of another comparable standard for materials covered inthis standard.2. Referenced Documents2.1 ASTM Standards:2A240/A240M Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Press
6、ureVessels and for General ApplicationsA493 Specification for Stainless Steel Wire and Wire Rodsfor Cold Heading and Cold ForgingA644 Terminology Relating to Iron CastingsD395 Test Methods for Rubber PropertyCompression SetD412 Test Methods for Vulcanized Rubber and Thermo-plastic ElastomersTensionD
7、471 Test Method for Rubber PropertyEffect of LiquidsD543 Practices for Evaluating the Resistance of Plastics toChemical ReagentsD573 Test Method for RubberDeterioration in an AirOvenD624 Test Method for Tear Strength of Conventional Vul-canized Rubber and Thermoplastic ElastomersD638 Test Method for
8、 Tensile Properties of PlasticsD1149 Test Methods for Rubber DeteriorationCrackingin an Ozone Controlled EnvironmentD2240 Test Method for Rubber PropertyDurometerHardnessD3045 Practice for Heat Aging of Plastics Without LoadD6147 Test Method for Vulcanized Rubber and Thermo-plastic ElastomerDetermin
9、ation of Force Decay (StressRelaxation) in Compression3. Terminology3.1 DefinitionsFor definitions of terms used in this stan-dard, see Terminology A644.3.2 Definitions of Terms Specific to This Standard:3.2.1 center stop, nan integral part of the gasket centeredon its axial length intended to limit
10、 the insertion depth of thepipe to be coupled.3.2.2 clamp assembly, nthat portion of the couplingexcluding the gasket.3.2.3 coupling, nthe complete assembly.3.2.4 fitting, nparts of a pipeline other than straight pipecouplings, or valves.3.2.5 flexible transition couplings, ndevices used to forma le
11、akproof joint between sections of plain end pipe or fittingsof the same or different materials, of the same or different size,or any combination of materials or pipe sizes.3.2.6 free torque, nthe torque value expressed inlbfin./Nm when the clamp is tightened four revolutions of thescrew nut; while i
12、n the free state, this value does not includeany breakaway effects due to staking or passage of the bandends beyond the screw heads.3.2.7 inserts, na bushing or ring placed into the couplingsocket to accommodate pipe materials of differing outsidediameters.1This specification is under the jurisdicti
13、on of ASTM Committee A04 on IronCastings and is the direct responsibility of Subcommittee A04.75 on Gaskets andCoupling for Plumbing and Sewer Piping.Current edition approved Dec. 15, 2010. Published January 2011. Originallyapproved in 1991. Last previous edition approved in 2008 as C1173 08. DOI:10
14、.1520/C1173-10.2For 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 International, 100 Barr Harbor
15、 Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3.2.8 joint, nthe completed assembly of parts consistingof the flexible transition coupling and the joined pipes, orfittings, or both.3.2.9 lot, na specific quantity of similar material orcollection of similar units from a common s
16、ource; the quantityoffered for inspection and acceptance at any one time. A lotmight comprise a shipment, batch, or similar quantity.3.2.10 manufacturer, nthe entity that produces the cou-pling.3.2.11 plain end pipe, nany pipe that does not include anybell, hub, threaded area, or other means of join
17、ing.3.2.12 shear ring, nan interior or exterior element whichis used to span the distance between the pipe ends within acoupling so as to provide increased resistance to axial displace-ment.4. Classification4.1 The couplings shall be permitted to have a center stop.The components shall be designed s
18、o that the elastomericmaterial is compressed to form a hydrostatic seal when thejoint is assembled. The couplings shall be of the typesdescribed in 4.1.1-4.1.3.4.1.1 Type AA coupling consisting of an elastomericgasket incorporating corrosion resistant tension bands andtightening mechanism. Couplings
19、 shall be fabricated withoutshear rings, with or without inserts and with or without a centerstop.4.1.2 Type BA coupling consisting of an elastomericgasket incorporating a corrosion resistant shear ring, tensionbands and tightening mechanism. Couplings shall be fabricatedwith shear rings, with or wi
20、thout inserts and with or without acenter stop (Note 1).4.1.3 Type CA coupling fabricated with elastomeric com-pression seals.NOTE 1The provisions of this standard are not intended to prevent theuse of any alternate material or method of construction, provided any suchalternate meets the requirement
21、s of this standard.5. Materials and Manufacture5.1 Elastomeric materials used in the manufacturing ofcouplings and inserts shall comply with the requirements of 9.1and Table 1 of this standard.5.2 All metallic components shall be manufactured of 300series stainless steel.6. Elastomeric Gasket Requir
22、ements6.1 The elastomeric gasket shall conform to the physicalproperties as specified in 5.1 of this standard.6.2 Elastomeric gaskets and inserts of single, multi-piece, orspliced construction shall show no signs of separation, peeling,or other defects when tested in accordance with Section 9.6.3 El
23、astomeric gaskets and inserts of single, multi-piece, orspliced construction shall be free from porosity and air pockets.Its surface shall be smooth and free from pitting, cracks,blisters, air marks, or any other imperfections that affect itsperformance in service. The flash extension shall not exce
24、ed1mm at any point where the presence of flash affects perfor-mance.6.4 Elastomeric gaskets and inserts shall be compatible withthe dimensions and tolerances of the specific material to whichit is designed to join.7. Clamp Assembly Requirements7.1 All metallic components shall be of 300 series stain
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