1、Designation: C 1173 06Standard Specification forFlexible Transition Couplings for Underground PipingSystems1This standard is issued under the fixed designation C 1173; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of las
2、t revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 These specifications describe the properties of devicesor assemblies suitable for use as flexible transition couplings,h
3、ereinafter referred to as couplings, for underground drainageand sewer piping systems.1.2 Couplings that may include bushings or inserts and thatmeet the requirements of this standard are suitable for joiningplain end pipe or fittings. The pipe to be joined shall be ofsimilar or dissimilar materials
4、, size, or both.1.3 The values stated in inch-pound units shall be regardedas standard.1.4 The ASTM standards referenced herein shall be consid-ered mandatory.1.5 The committee with jurisdiction over this standard is notaware of another comparable standard for materials covered inthis standard.2. Re
5、ferenced Documents2.1 ASTM Standards:2C 717 Terminology of Building Seals and SealantsD 412 Test Methods for Vulcanized Rubber and Thermo-plastic ElastomersTensionD 471 Test Method for Rubber PropertyEffect of LiquidsD 518 Test Method for Rubber DeteriorationSurfaceCrackingD 543 Practices for Evalua
6、ting the Resistance of Plastics toChemical ReagentsD 573 Test Method for RubberDeterioration in an AirOvenD 638 Test Method for Tensile Properties of PlasticsD 1149 Test Method for Rubber DeteriorationSurfaceOzone Cracking in a ChamberD 2240 Test Method for Rubber PropertyDurometerHardnessD 3045 Pra
7、ctice for Heat Aging of Plastics Without Load3. Terminology3.1 DefinitionsFor definitions of terms used in this stan-dard, see Terminology C 717.3.2 Definitions of Terms Specific to This Standard:3.2.1 center stopan integral part of the gasket centered onits axial length intended to limit the insert
8、ion depth of the pipeto be coupled.3.2.2 fittingparts of a pipeline other than the straight pipecouplings, or valves.3.2.3 flexible transition couplingsdevices used to form aleakproof joint between sections of plain end pipe or fittings ofthe same or different materials, of the same or different siz
9、e, orany combination of materials or pipe sizes.3.2.4 free torquethe torque value expressed in lbfin./Nmwhen the clamp is tightened four revolutions of the screw nut;while in the free state, this value does not include anybreakaway effects due to staking or passage of the band endsbeyond the screw h
10、eads.3.2.5 insertsa bushing or ring placed into the couplingsocket to accommodate pipe materials of differing outsidediameters.3.2.6 jointthe completed assembly of parts consisting ofthe flexible transition coupling and the joined pipes, or fittings,or both.3.2.7 lota specific quantity of similar ma
11、terial or collec-tion of similar units from a common source; the quantityoffered for inspection and acceptance at any one time. A lotmight comprise a shipment, batch, or similar quantity.3.2.8 plain end pipeany pipe that does not include anybell, hub, threaded area, or other means of joining.3.2.9 s
12、hear ringan interior or exterior element which isused 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 so that the elas
13、tomericmaterial is compressed to form a hydrostatic seal when thejoint is assembled. The couplings shall be of the typesdescribed in 4.1.1-4.1.3.1These specifications are under the jurisdiction of ASTM Committee A04 onIron Castings and are the direct responsibility of Subcommittee A04.75 on Gasketsa
14、nd Coupling for Plumbing and Sewer Piping.Current edition approved Jan. 15, 2006. Published January 2006. Originallyapproved in 1991. Last previous edition approved in 2002 as C 1173 02.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceas
15、tm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.4.1.1 Type AA coupling consisting of an elastomericsleeve in
16、corporating corrosion resistance tension bands and atightening mechanism. Couplings shall be fabricated with orwithout shear rings, and with or without a center stop.4.1.2 Type BA coupling consisting of an elastomeric orrubber sleeve incorporating a corrosion resistant outer sleeveand tension bands,
17、 or tightening mechanism, or both (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 requirements of this sta
18、ndard.5. Materials and Manufacture5.1 Elastomeric materials used in the manufacturing ofcouplings and inserts shall comply with the requirements setforth in Table 1.5.2 Stainless steel tension bands shall be of the 300 seriesstainless steel.5.3 Couplings or bushings/inserts, or both, of multi-piecec
19、onstruction or with splices shall show no separation, peeling,or other defects when tested in accordance with Section 9.5.4 The coupling 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 i
20、tsperformance in service. The flash extension shall not exceed 1mm at any point where the presence of flash affects perfor-mance.6. Requirements Requirements6.1 The physical and chemical properties of the couplingmaterials shall conform to the requirements specified in Table1.7. Dimensions7.1 Coupli
21、ngs and bushing dimensions shall be compatiblewith the dimensions and tolerances of the specific material towhich it is designed to join.8. Sampling, Tests, and Retests8.1 Test specimens representative of the couplings to beused shall be randomly selected from the manufactured lot fortesting.8.2 No
22、less than two couplings for each size or type shall betested, unless otherwise specified or waived by the purchaser.8.3 Where there is a failure in the original test, the entire testshall be rerun with twice the number of samples and any failureshall be cause for rejection.9. Test Methods9.1 Elastom
23、eric Materials:9.1.1 HardnessHardness shall be measured on either afinished surface, a squarely cut end, or a flat sliced or buffedsurface, depending on the size and shape of the specimen. SeeTest Method D 2240.9.1.2 Tensile Strength and Elongation The dumbbellsshall be prepared from sections of the
24、 finished material. SeeTest Methods D 412.9.1.3 Heat Aging, for hardness, tensile and elongation shallbe performed in accordance with Test Method D 573. Speci-mens shall be oven-aged for 96 h at 158 6 3.6F (70 6 2C).9.1.4 Ozone ResistanceTest specimens shall be used asdescribed in Test Method D 518,
25、 Procedure A, stretched 20 %and exposed to an ozone concentration of 50 parts per 100million for 100 h at 104 6 3.6F (40 6 2C). See Test MethodD 1149.9.1.5 Water AbsorptionSize and time determinations shallbe set in accordance with Test Method D 471. A specimen0.075 by 1 by 2 in. (1.9 by 25 by 50 mm
26、) shall be immersed indistilled water at 158 6 3.6F (70 6 2C) for 7 days. Afterseven days the specimen shall be removed, the surface mois-ture blotted and the specimen weighed. The percent gain shallbe determined by the following equation:WF 2 WO!WO 100where:WF = weight of specimen after immersion f
27、or 7 days, andWO = dry weight of specimen before immersion.9.1.6 Chemical ResistanceSamples shall be aged for 48 hat 74 6 3.6F (23 6 2C) using solutions of 1N sulfuric acidand 1N hydrochloric acid. See Test Method D 543.9.2 Tension Band Performance:9.2.1 Torque ResistanceStainless steel tension band
28、s shallbe tested to withstand the manufacturers required torque or aminimum of 60 in.-lb (8.5 Nm) of applied torque withoutTABLE 1 Test RequirementsPropertiesPhysicalRequirementsASTM TestMethodElastomeric MaterialsHardness, Nominal Shore “A” Durometeras specified by the coupling manufacturer5075 D 2
29、240Hardness, Nominal Shore “D” Durometeras specified by the coupling manufacturer3545 D 2240Tensile strength, min psi (KPa) 1000 (6894) D 412,DieC,Fig. 2 or D 638Elongation at rupture, min, % 200 D 412,DieC,Fig. 2 or D 638Heat aging, 70 h, 158 6 3.6F (70 6 2C) D 573 orD 3045Hardness increase, maximu
30、m Durometerpoints10Change in tensile strength, max, % 25Change in elongation, max, % 35Ozone resistance No cracks D 1149At 20 % elongationFor 100 h at 1046 3.6F (40 6 2C)With 50 parts per 100 millionWater absorption, weight gain, %, max 20 D 471Chemical resistance, 48 h, 746 3.6F (236 2C)no weight l
31、oss D 543Stainless Steel MaterialsTorque resistance, 60 in.-lb (6.8 Nm) no failure 9.2 of C1173Manufacturers required torque resistance no failure 9.2 of C1173Joint AssembliesDeflection resistance 4.3 psi (30 kPa) as given in Table29.3.1 of C1173Shear loading resistance (optional) as given in Table3
32、9.3.2 of C1173C1173062visible signs of failure. The band shall be tested over a steelmandrel of the appropriate coupling diameter and torqued asrequired.9.2.2 The maximum free running torque shall be 4 in.-lb(0.45 Nm).9.2.2.1 Stainless steel tension bands with torque resistancein excess of 100 in.-l
33、b shall have a maximum free runningtorque of 8 in.-lb.9.2.3 Test Procedure for Free Running Torque:9.2.3.1 With the nonstressed clamp hand held and theslotted band fully engaged, the screw shall be rotated clock-wise 10 revolutions with the maximum value of the torquemeter recorded.9.2.3.2 The equip
34、ment required shall be a hand held torquemeter witha0to15in.-lb range.9.3 Joint Assemblies:9.3.1 Deflection Sealing Resistance The joint shall havesufficient flexibility to permit deflection in any direction asdefined by Table 2 and shall show no visible leakage when sodeflected while under an inter
35、nal hydrostatic pressure of 4.3 psi(30 KPa). The ends of the test pipe shall be restrained only byan amount necessary to prevent longitudinal movement. Thedeflection shall be measured as the distance the free end of theone pipe has moved away from the center line of the fixed pipe.See Fig. 1.9.3.2 S
36、hear Loading ResistanceThe joint shall have suf-ficient resistance to shear loading to meet the requirements ofthe following test. Two lengths of pipe shall be joined by acoupling with the two joined lengths of pipe supported onblocks at three locations. One length of pipe shall be supportedon two b
37、locks, one near the unjoined end, and the otherimmediately adjacent to the joint. This length shall then befirmly restrained in position. The other length of pipe shall besupported by a single block located 36 in. (0.9 m) from thecenterline of the joint. A load of 50 lb/in. (220N/25 mm) ofnominal pi
38、pe diameter adjusted by the weight of pipe extend-ing beyond the support times its moment arm divided by themoment arm to the test load, shall be uniformly applied over anarc of 120 and along a longitudinal length of 24 in. (0.6 m)immediately adjacent to the joint of the pipe having onesupport (see
39、Fig. 2). While thus loaded, an internal hydrostaticpressure of 4.3 psi (30 KPa) shall be maintained for a period of1 h with the temperature of water, pipe, and atmosphere withinthe range between 60 and 75F (15.5 and 23.8C) (Note 2).NOTE 2Fig. 2 and Table 3 in 9.3.1 are not mandatory at this timebeca
40、use Subcommittee C24.75 is attempting to verify the procedure andvalues.10. Certification10.1 When specified in the purchase order or contract, thepurchaser shall be furnished certification stating samples rep-resenting each lot have been tested and inspected as indicatedin this specification and th
41、e requirements have been met. Whenspecified in the purchase order or contract, a report of the testresults shall be furnished.11. Product Marking11.1 Each coupling shall be marked with the manufacturersname or trademark, or both.11.2 The type and size of pipe for which the coupling isintended or the
42、 manufacturers product number shall bemarked on or attached to each coupling.12. Keywords12.1 couplings; drainage; elastomeric; flexible; sewer; tran-sition; underground pipingTABLE 2 RequirementsDeflection per Foot of Pipe LengthANominal ID,in. (mm), incl.Offset in./linear ft(mm/linear m)212 (50300
43、)12 (42)1524 (375600)38 (31)2736 (675900)14 (21)3942 (9751050)316 (15)ASee 9.3.1.NOTE 1Deflection (in.(mm) = L(ft(m) 3 offset (in./linear ft (mm/linear m). See Table 2.FIG. 1 Deflection Test (Plan View)NOTE 1For maximum axial deviation values, see Table 3.FIG. 2 Shear TestTABLE 3 Maximum Axial Devia
44、tionANominal ID,in. (mm), incl.Axial Deflection,in. (mm)26 (50150)38 (9)812 (200300)78 (22)1524 (375600) 118 (28)2736 (675900)34 (19)3942 (9751050)916 (14)ASee 9.3.2.C1173063ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mention
45、edin 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 revision at any time by the responsible technical committee and
46、 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 comments will receive careful consideration at a meeting of
47、 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
48、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).C1173064
