1、Designation: C1540 09aStandard Specification forHeavy Duty Shielded Couplings Joining Hubless Cast IronSoil Pipe and Fittings1This standard is issued under the fixed designation C1540; 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.1. Scope1.1 This specification covers the evaluating of the perfor-mance of heavy duty shielded couplings to join hu
3、bless 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 t
4、hat 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:2A240/A240M Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for PressureVessels and for General ApplicationsA493 Specification for
7、Stainless Steel Wire and Wire Rodsfor Cold Heading and Cold ForgingA644 Terminology Relating to Iron CastingsA888 Specification for Hubless Cast Iron Soil Pipe andFittings for Sanitary and Storm Drain, Waste, and VentPiping ApplicationsC564 Specification for Rubber Gaskets for Cast Iron SoilPipe and
8、 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, Waste a
9、nd 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 found in
10、 Terminology A644.3.2 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 gasket.3.2
11、.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. 1.3.2.7 jo
12、int, 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, nthe entit
13、y that attaches thecoupling assembly to the shield of the couplings covered bythis standard specification.1This 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.C
14、urrent edition approved Oct. 15, 2009. Published December 2009. Originallyapproved in 2002. Last previous edition approved in 2009 as C1540 09. DOI:10.1520/C1540-09a.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual B
15、ook of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.TABLE 1Nominal Pipe Size 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)
16、 Minimum Width1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3.2.10 gasket manufacturer, nthe entity that molds thegaskets inserted into the couplings covered by this standardspecification.4. Materials and Manufacture4.1 Physical pr
17、operties of gaskets shall comply with Speci-fication C564 using the applicable durometer hardness require-ment of the column of Table 2 of that document as specified bythe manufacturer.4.2 Clamp assembly screws or bolts shall not have screw-driver slots.4.3 All stainless steel shall meet the physica
18、l requirementsof Specification A240/A240M.5. Elastomeric Gasket Requirements5.1 The elastomeric gasket shall consist of one piece poly-chloroprene construction conforming to the physical require-ments of Specification C564. The gaskets shall be tested by thegasket manufacturer for compliance to Spec
19、ification C564during 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 s
20、upplier changes,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
21、 the use and serviceability.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 A240/A240M.
22、 All metallic parts made from round stock shall be of300 series stainless steel and shall conform to the requirementsof Specification A493 (excluding copper bearing alloys).6.1.2 Clamp assemblies shall be tested to withstand no lessthan 125 % of the manufacturers stated installation torquewithout vi
23、sible signs of failure. The clamp assembly shall betested over a steel mandrel of the appropriate diameter andtorqued as required. These tests shall be performed on ran-domly selected samples during the course of production asneeded, but not less than one clamp per shift per size duringclamp assembl
24、y production.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 pipe meeting the requirements ofCISPI 301 or Specification A888 and conduct deflection andshear te
25、sts. 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 first article approval as required notto exceed 30 days.7.1.1 Deflection Test:7.1.1.1 A test appa
26、ratus 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.FIG. 1 Typical Center Stop DetailTABLE 2 Dimensions and Tolerances for Hubless Pipe andFittingsSize,in. (mm)Out
27、side 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) 4.38+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)
28、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)C1540 09a27.1.1.2 Fill the assembly with water, expel all air, andhydrostatically pressurize to 8.6 psi (59.3 kPa) for the durationof the test. One pipe shall be rigidly supported and while theassemb
29、ly 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 joined lengths of randomly selectedhubless cast iron soil pipe on blocks, a minimum of 112 in.(38.
30、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 restrain this length in positionas shown in Fig. 3. The other coupled length shall be aminimum of 5
31、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 diameter at a point6 in. (152.4 mm) from the edge of the coupling upon a 12 in.(304.8 mm) length of
32、 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 visibleleakage or displacement of more than38 in. (9.53 mm) fromtrue alignment adjacent to the
33、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 Assemble each coupling to be tested according to themanufacturers instruction between two sect
34、ions 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 as referenced in Table 2 and lengths as shownin Fig. 4. Machine the plain ends of the pipe to b
35、e 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 adistance equal to that covered by the elastomeric sleeve of thecoupling being tested. The tool used
36、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 the pipe for the thrust test shall beuncoated and cleaned with acetone and thoroughly dried befor
37、eeach 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, expelling all air. Increase the hydrostatic pressure at arate of 1 psi (6.9 kPa) every 30 s until th
38、e 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.(203.2 mm), 9 psi (62 kPa) for 10 in. (254 mm), and 6 psi (31.3kPa) for 12 and 15 in. pipe. When
39、 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 clamp assembly with the manu-facturers name or U.S. registered trademark, country of origin,FIG.
40、2 Deflection TestFIG. 3 Shear TestC1540 09a3all stainless and the pipe size for which it is designed. Markingshall be visible after installation.8.2 Gasket markings shall conform to Specification C564.8.3 The product shall also have any other markings requiredby law and shall have the option to incl
41、ude this designation(Specification C1540).9. Certification9.1 Upon request, the purchaser, design professional, or theadministrative authority having jurisdiction where the productsare being installed shall be furnished certification, by themanufacturer, stating samples representing each lot have be
42、entested 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, certificationshall be accompanied by test reports as prepared in
43、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 manufacturing locations.FIG. 4 Unrestrained Hydros
44、tatic Joint Testing ApparatusC1540 09a4ANNEX(Mandatory Information)The following supplementary requirements shall be applied when the manufacturer or seller of the products covered bythis specification utilizes third party certification agencies as part of their certifications as detailed in Section
45、 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 limited to the following during eachinspection.A1.1.1 A review of the manufacturers records to
46、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 finishedgoods inventory shall be conducted during each inspection.These inspections shall include
47、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 requirementsof the applicable coupling standard.APPENDIX(Nonmandatory Information)X1. INSTALLATION PRO
48、CEDURES 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 in hubless cast iron sanitary and storm drain,waste, and vent piping applications to connect h
49、ubless cast ironsoil pipe and fittings by using a sleeve-type, or some other typecoupling device. It is the purpose of this portion of C1540 tofurnish procedures as to the installation of couplings, which aremanufactured in accordance with C1540 when applied to castiron soil pipe and fittings manufactured in accordance withCISPI Standard 301 and Specification A888, latest revisions. Itmust be noted that these installation procedures are notintended to be applicable for couplings not made in accordancewith C1540.X1.1.2 The installation procedures stated
