1、Designation: C 1540 09Standard Specification forHeavy Duty Shielded Couplings Joining Hubless Cast IronSoil Pipe and Fittings1This standard is issued under the fixed designation C 1540; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revisio
2、n, 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 the evaluating of the perfor-mance of heavy duty shielded couplings to join h
3、ubless castiron soil pipe and fittings.1.2 Couplings covered by this standard shall have minimumdimensions as found in Table 1 and Fig. 1 of this standard.1.3 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units
4、that are provided for information onlyand are not considered standard.1.4 The committee with jurisdiction over this standard isaware of comparable standards published by other organiza-tions, namely Cast Iron Soil Pipe Institute specification CISPI310 and Factory Mutual Research standard FM 1680.1.5
5、 The following precautionary caveat pertains only to thetest method portion, Section 7, of this specification. Thisstandard does not purport to address all of the safety concerns,if any, associated with its use. It is the responsibility of the userof this standard to establish appropriate safety and
6、 healthpractices and determine the applicability of regulatory limita-tions prior to use.2. Referenced Documents2.1 ASTM Standards:2A 240/A 240M Specification for Chromium andChromium-Nickel Stainless Steel Plate, Sheet, and Stripfor Pressure Vessels and for General ApplicationsA 493 Specification f
7、or Stainless Steel Wire and Wire Rodsfor Cold Heading and Cold ForgingA 644 Terminology Relating to Iron CastingsA 888 Specification for Hubless Cast Iron Soil Pipe andFittings for Sanitary and Storm Drain, Waste, and VentPiping ApplicationsC 564 Specification for Rubber Gaskets for Cast Iron SoilPi
8、pe and Fittings2.2 CISPI Standards:CISPI-301 Specification for Hubless Cast Iron Soil Pipe andFittings for Sanitary and Storm Drain, Waste and VentPiping ApplicationsCISPI-310 Specification for coupling for use in Connectionwith Hubless Cast Iron Soil Pipe and Fittings for Sanitaryand Storm Drain, W
9、aste and Vent Piping ApplicationsFM 1680 Approval Standard Couplings used in HublessCast Iron Systems for Drain, Waste or Vent Systems aboveor below ground Industrial, Commercial, and Residential3. Terminology3.1 Definitions:3.1.1 Definitions of the following terms used in this speci-fication are fo
10、und in Terminology A 644.3.2 Definitions of Terms Specific to This Standard:3.2.1 center stop, nan integral part of the gasket centeredon the axial length of the gasket intended to limit the insertiondepth of the pipe to be coupled.3.2.2 clamp assembly, nthat portion of the couplingexcluding the gas
11、ket.3.2.3 coupling, nthe complete assembly.3.2.4 fitting, nparts of a pipeline other than straight pipes,valves, or couplings.3.2.5 gasket, nthe elastomeric portion of the coupling.3.2.6 heavy duty coupling, na shielded coupling that hasdimensions not less than those detailed in Table 1 and Fig. 1.1
12、This specification is under the jurisdiction 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 Sept. 1, 2009. Published September 2009. Originallyapproved in 2002. Last previous
13、edition approved in 2008 as C 1540 08.2For 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.TABLE 1Nominal Pipe Siz
14、e Coupling Width112 to 4 in. (38 to 100 mm) 3 in. (76 mm) Minimum Width5 to 10 in. (127 to 254 mm) 4 in. (100 mm) Minimum Width12 to 15 in. (305 to 381 mm) 512 in. (140 mm) Minimum Width1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States
15、.3.2.7 joint, nthe point of assembly consisting of thecoupling and the joined pipes or fittings, or both.3.2.8 shield, nan external metallic protective device de-signed to protect the sealing gasket from external elements thatcould cause failure of the sealing assembly.3.2.9 coupling manufacturer, n
16、the entity that attaches thecoupling assembly to the shield of the couplings covered bythis standard specification.3.2.10 gasket manufacturer, nthe entity that molds thegaskets inserted into the couplings covered by this standardspecification.4. Materials and Manufacture4.1 Physical properties of ga
17、skets shall comply with Speci-fication C 564 using the applicable durometer hardness re-quirement of the column of Table 2 of that document asspecified by the manufacturer.4.2 Clamp assembly screws or bolts shall not have screw-driver slots.4.3 All stainless steel shall meet the physical requirement
18、sof Specification A 240.5. Elastomeric Gasket Requirements5.1 The elastomeric gasket shall consist of one piece poly-chloroprene construction conforming to the physical require-ments of Specification C 564. The gaskets shall be tested by thegasket manufacturer for compliance to Specification C 564du
19、ring the course of production not to exceed 24 hours. Testshall include hardness, elongation and tensile strength, tearstrength and compression set. Heat, aging, water absorption,ozone resistance and oil immersion tests shall be conductedannually or when a formulation changes, or a supplier changes,
20、whichever occurs first.5.1.1 The elastomeric gasket shall have an inside center stopthat does not create an enlargement chamber or recess with aledge, shoulder, or reduction of pipe area or offer an obstruc-tion to flow.5.1.2 The elastomeric gasket shall be free of defects thataffect the use and ser
21、viceability.6. Clamp Assembly Requirements6.1 The clamp assembly shall be made of material conform-ing to the requirements as outlined in Sections 4 and 6.6.1.1 All metallic parts shall be of 300 series stainless steeland shall conform to the requirements of Specification A 240.All metallic parts ma
22、de from round stock shall be of 300 seriesstainless steel and shall conform to the requirements ofSpecification A 493 (excluding copper bearing alloys).6.1.2 Clamp assemblies shall be tested to withstand no lessthan 125 % of the manufacturers stated installation torquewithout visible signs of failur
23、e. The clamp assembly shall betested over a steel mandrel of the appropriate diameter andtorqued as required.7. Couplings Requirements and Test Methods7.1 Assemble each coupling to be tested according to themanufacturers instructions between two sections of randomlyselected hubless cast iron soil pi
24、pe meeting the requirements ofCISPI 301 or Specification A 888 and conduct deflection andshear tests. In addition, unrestrained hydrostatic tests shall beperformed as detailed in 7.2. The deflection, shear, andunrestrained hydrostatic tests shall be performed on each sizeand type coupling utilizing
25、first article approval as required notto exceed 30 days.FIG. 1 Typical Center Stop DetailTABLE 2 Dimensions and Tolerances for Hubless Pipe andFittingsSize,in. (mm)Outside Diameter,in. (mm)112 (38) 1.90 6 0.06 (48.26 6 1.52)2 (51) 2.35 6 0.09 (59.69 6 2.29)3 (76) 3.35 6 0.09 (85.09 6 2.29)4 (102) 4.
26、38+0.09-0.05 (111.25+2.29/-1.27)5 (127) 5.30+0.09-0.05 (134.63+2.29/-1.27)6 (152) 6.30+0.09-0.05 (160.02+2.29/-1.27)8 (203) 8.38+0.13-0.09 (212.85+3.30/-2.29)10 (254) 10.56 6 0.09 (268.22 6 2.29)12 (305) 12.50 6 0.09 (317.5 6 2.29)15 (381) 15.83 6 0.09 (402.08 6 2.29)C15400927.1.1 Deflection Test:7.
27、1.1.1 A test apparatus such as the one shown in Fig. 2 issuggested. Other testing apparatus that provide restraint to theassembly shall also be permitted. Close the outboard ends ofthe pipe with test plugs.7.1.1.2 Fill the assembly with water, expel all air, andhydrostatically pressurize to 8.6 psi
28、(59.3 kPa) for the durationof the test. One pipe shall be rigidly supported and while theassembly is under pressure, raise the opposite end of the otherpipe 1 in. (25 mm) per lineal foot of pipe. Maintain the pressurefor 15 min. Any leakage shall mean failure.7.1.2 Shear Test:7.1.2.1 Support two joi
29、ned lengths of randomly selectedhubless cast iron soil pipe on blocks, a minimum of 112 in.(38.1 mm) high, at three locations. One length shall be aminimum of 24 in. (609.6 mm) in length, supported on blocks,one near the uncoupled end, and the other immediatelyadjacent to the couplings. Firmly restr
30、ain this length in positionas shown in Fig. 3. The other coupled length shall be aminimum of 5 ft (1.52 m) in length and supported by a singleblock 6 in. (152.4 mm) from the end of the pipe.7.1.2.2 Fill the assembly with water and expel all air. Applya load of 50 lb per in. (22.7 kg) of nominal diam
31、eter at a point6 in. (152.4 mm) from the edge of the coupling upon a 12 in.(304.8 mm) length of 3 by 3 in. (76.2 by 76.2 mm) angle ironor load distribution pad located on the top of the pipeimmediately adjacent to the coupling of the pipe having onesupport only. Under this loading there shall be no
32、visibleleakage or displacement of more than38 in. (9.53 mm) fromtrue alignment adjacent to the coupling, when an internalpressure equivalent to a 20 ft (6.10 m) head of water 8.6 psi(59.3 kPa) is applied. Maintain the load and internal pressurefor 15 min.7.2 Unrestrained Hydrostatic Joint Test:7.2.1
33、 Assemble each coupling to be tested according to themanufacturers instruction between two sections of machinedsteel pipe and conduct the unrestrained hydrostatic joint test.7.2.2 The assembly shall consist of a maximum outsidediameter pipe connected to a minimum outside diameter pipewith diameters
34、as referenced in Table 2 and lengths as shownin Fig. 4. Machine the plain ends of the pipe to be used for thethrust test to the correct diameters. Plain ends shall have 0.015in. (0.38 mm) deep grooves machined circumferentially aroundthem at18 in. (3.18 mm) intervals down the pipe section for adista
35、nce equal to that covered by the elastomeric sleeve of thecoupling being tested. The tool used to machine the groovesshall have a 60 included angle and cut into the pipe from aperpendicular position. The surface between the grooves shallbe a lathe turned surface of 125 RMS.7.2.3 The plain ends of th
36、e pipe for the thrust test shall beuncoated and cleaned with acetone and thoroughly dried beforeeach assembly.7.2.4 Test Method:7.2.4.1 Support the pipe assemblies in a manner that doesnot restrain joint movement as shown in Fig. 4.7.2.4.2 Fill the pipe assembly (as required in 7.2) withwater, expel
37、ling all air. Increase the hydrostatic pressure at arate of 1 psi (6.9 kPa) every 30 s until the specified testpressure is reached. The specified test pressure shall be 30 psi(206.8 kPa) for 112 in. (38.1 mm) through 5 in. (127 mm), 27psi (186 kPa) for 6 in. (152.4 mm), 15 psi (103.4 kPa) for 8 in.(
38、203.2 mm), 9 psi (62 kPa) for 10 in. (254 mm), and 6 psi (31.3kPa) for 12 and 15 in. pipe. When the specified test pressure isreached, hold it for 15 min. Any leakage or axial jointmovement of more than 0.150 in. (3.81 mm) shall mean failure.8. Markings and Identification8.1 Permanently mark each cl
39、amp assembly with the manu-facturers name or U.S. registered trademark, country of origin,all stainless and the pipe size for which it is designed. Markingshall be visible after installation.8.2 Gasket markings shall conform to Specification C 564.8.3 The product shall also have any other markings r
40、equiredby law and shall have the option to include this designation(Specification C 1540).9. Certification9.1 Upon request, the purchaser, design professional, or theadministrative authority having jurisdiction where the productsare being installed shall be furnished certification, by themanufacture
41、r, stating samples representing each lot have beentested and inspected as indicated in this specification and therequirements have been met. If requested by the purchaser,design professional, or the administrative authority havingjurisdiction where the products are being installed, certificationshal
42、l be accompanied by test reports as prepared in accordancewith Sections 4-7 of this specification. Certification shallinclude the legal name and address of each manufacturer.9.2 Third Party certifiers or inspectors shall utilize theprocedures detailed in Annex A1 when conducting inspectionsat the ma
43、nufacturing locations.FIG. 2 Deflection TestC1540093FIG. 3 Shear TestFIG. 4 Unrestrained Hydrostatic Joint Testing ApparatusC1540094ANNEX(Mandatory Information)The following supplementary requirements shall be applied when the manufacturer or seller of the products covered bythis specification utili
44、zes third party certification agencies as part of their certifications as detailed in Section 9 of thisspecification.A1. Third Party Certification or Inspection.A1.1 Third Party certifiers or inspectors conducting regularinspections at the manufacturers production facility shallinclude but not be li
45、mited to the following during eachinspection.A1.1.1 A review of the manufacturers records to verifycompliance with Sections 4-8 of this standard. Copies of themanufacturers test reports shall be added to the third partycertifiers inspection report.A1.1.2 Random inspections of the manufacturers finis
46、hedgoods inventory shall be conducted during each inspection.These inspections shall include a dimensional and markinginspection of not less than 10 of these pieces of different sizecouplings in inventory during each inspection. Each gasketused as part of a coupling shall be subject to the requireme
47、ntsof the applicable coupling standard.APPENDIX(Nonmandatory Information)X1. INSTALLATION PROCEDURES FOR HUBLESS CAST IRON SOIL PIPE AND FITTINGS FOR SANITARY AND STORMDRAIN, WASTE AND VENT PIPING APPLICATIONSX1.1 IntroductionX1.1.1 Several different types of hubless couplings areavailable for use i
48、n hubless cast iron sanitary and storm drain,waste, and vent piping applications to connect hubless cast ironsoil pipe and fittings by using a sleeve-type, or some other typecoupling device. It is the purpose of this portion of C 1540 tofurnish procedures as to the installation of couplings, which a
49、remanufactured in accordance with C 1540 when applied to castiron soil pipe and fittings manufactured in accordance withCISPI Standard 301 and SpecificationA 888, latest revisions. Itmust be noted that these installation procedures are notintended to be applicable for couplings not made in accordancewith C 1540.X1.1.2 The installation procedures stated below are illustra-tive only and are not a mandatory portion of C 1540.X1.2 PurposesX1.2.1 These installation procedures provide guidelines forinstallation, use and inspection of hubless cast iron soil pipea
