ASTM C1540-2011 Standard Specification for Heavy Duty Shielded Couplings Joining Hubless Cast Iron Soil Pipe and Fittings《连接无衬套铸铁下水管和连接件的重型防护管接头的标准规范》.pdf

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1、Designation: C1540 11Standard 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 hub

3、less 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 committee with jurisdiction over this standard isaware of comparable standards published by other organiza-tions, namely Cast Iron Soil Pip

4、e Institute specification CISPI-310 and Factory Mutual Research standard FM 1680.1.4 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.1.5

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、 FittingsD3677 Test Methods for RubberIdentification by InfraredSpectrophotometry2.2 CISPI Standards:3CISPI-301 Specification for Hubless Cast Iron Soil Pipe andFittings for Sanitary and Storm Drain, Waste and VentPiping ApplicationsCISPI-310 Specification for couplings for use in Connec-tion with H

9、ubless Cast Iron Soil Pipe and Fittings forSanitary and Storm Drain, Waste and Vent Piping Appli-cations2.3 Factory Mutual Standards:4FM 1680 Approval Standard for Couplings Used in HublessCast Iron Systems for Drain, Waste or Vent, Sewer,Rainwater or Storm Drain Systems Above and BelowGround, Indus

10、trial/Commercial and Residential3. Terminology3.1 Definitions:3.1.1 Definitions of the following terms used in this speci-fication are found in 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 ga

11、sket intended to limit the insertiondepth of the pipe to be coupled.3.2.2 clamp assembly, nthat portion of the couplingexcluding the gasket.3.2.3 coupling, nthe complete assembly.3.2.4 coupling manufacturer, nthe entity that attaches thecoupling assembly to the shield of the couplings covered bythis

12、 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.Current edition approved June 1, 2011. Published July 2011. Originally approvedin 2

13、002. Last previous edition approved in 2009 as C1540 09a. DOI: 10.1520/C1540-11.2For 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

14、onthe ASTM website.3Available from Cast Iron Soil Pipe Institute (CISPI), 5959 Shallowford Rd.,Suite 419, Chattanooga, TN 37421, http:/www.cispi.org.4Available from FM Approvals, P.O. Box 9102, Norwood, MA 02062. http:/.TABLE 1Nominal Pipe Size Coupling Width112 to 4 in. (38 to 100 mm) 3 in. (76 mm)

15、 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.3.2.5 fitting, nparts of a pipeline other than straight

16、pipes,valves, or couplings.3.2.6 gasket, nthe elastomeric portion of the coupling.3.2.7 gasket manufacturer, nthe entity that molds thegaskets inserted into the couplings covered by this standardspecification.3.2.8 heavy duty coupling, na shielded coupling that hasdimensions not less than those deta

17、iled in Table 1 and Fig. 1.3.2.9 joint, nthe point of assembly consisting of thecoupling and the joined pipes or fittings, or both.3.2.10 shield, nan external metallic protective devicedesigned to protect the sealing gasket from external elementsthat could cause failure of the sealing assembly.4. Ma

18、terials and Manufacture4.1 Physical properties 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

19、stainless steel shall meet the physical requirementsof Specification A240/A240M.5. Elastomeric Gasket Requirements5.1 The gasket shall be tested in accordance with TestMethods D3677 and be manufactured from a properly vulca-nized virgin compound where the primary elastomer is poly-chloroprene (neopr

20、ene).5.2 The elastomeric gasket shall consist of one piece con-struction conforming to the physical requirements of Specifi-cation C564. The gaskets shall be tested by the gasketmanufacturer for compliance to Specification C564 during thecourse of production not to exceed 24 hours for each size ofga

21、sket being produced. These tests shall be performed at themanufacturer location during the time of production. Thesetests shall include hardness, elongation and tensile strength,tear strength and compression set. Heat, aging, water absorp-tion, ozone resistance and oil immersion tests shall be con-d

22、ucted annually or when a formulation changes, or a supplierchanges, whichever occurs first.5.2.1 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.5.2.2 The el

23、astomeric gasket shall be free of defects thataffect 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 conf

24、orm to the requirements of Specification A240/A240M. 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 th

25、e manufacturers stated installation torquewithout visible 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 t

26、han one clamp per shift per size duringclamp assembly production.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

27、 (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) 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 1127. Couplings R

28、equirements 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 tests. In addition, unrestrai

29、ned hydrostatic tests shall beperformed as detailed in 7.2. The deflection and shear testsshall be performed on each size and type coupling utilizing firstarticle approval as required not to exceed 120 days. Theunrestrained hydrostatic test shall be performed on randomlyselected couplings of each si

30、ze during the course of productionusing first article selection not to exceed 30 days.7.1.1 Deflection Test:7.1.1.1 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

31、with test plugs.7.1.1.2 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 theassembly is under pressure, raise the opposite end of the otherpipe 1 in. (25 mm) per lineal foot of

32、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.(38.1 mm) high, at three locations. One length shall be aminimum of 24 in. (609.6 mm) in length, su

33、pported 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 ft (1.52 m) in length and supported by a singleblock 6 in. (152.4 mm) from the end of the pipe.

34、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 3 by 3 in. (76.2 by 76.2 mm) angle ironor load distribution pad located on the top of the pipe

35、immediately 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 coupling, when an internalpressure equivalent to a 20 ft (6.10 m) head of water 8.6 psi(59.3 kP

36、a) 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 sections of machinedsteel pipe and conduct the unrestrained hydrostatic joint test.7.2.2 The assemb

37、ly 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 be used for thethrust test to the correct diameters. Plain ends shall have 0.015in. (0.38 mm) de

38、ep 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 to machine the groovesshall have a 60 included angle and cut into the pipe from aperpendicular

39、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 beforeeach assembly.7.2.4 Test Method:7.2.4.1 Support the pipe assemblies in a manner that doesnot r

40、estrain 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 the specified testpressure is reached. The specified test pressure shall be 30 psi(206.8 kPa) for

41、 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 the specified test pressure isreached, hold it for 15 min. Any leakage or axial jointmovement

42、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,all stainless and the pipe size for which it is designed. Markingshall be visible after installation

43、.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 include this designation(Specification C1540).FIG. 2 Deflection TestC1540 1139. Certification9.1 Upon request, the purchaser, design professional, o

44、r theadministrative authority having jurisdiction where the productsare being installed shall be furnished certification, by themanufacturer, stating samples representing each lot have beentested and inspected as indicated in this specification and therequirements have been met. If requested by the

45、purchaser,design professional, or the administrative authority havingjurisdiction where the products are being installed, certificationshall be accompanied by test reports as prepared in accordancewith Sections 4-7 of this specification. Certification shallinclude the legal name and address of each

46、manufacturer.FIG. 3 Shear TestFIG. 4 Unrestrained Hydrostatic Joint Testing ApparatusC1540 1149.2 Third Party certifiers or inspectors shall utilize theprocedures detailed in Annex A1 when conducting inspectionsat the manufacturing locations.ANNEX(Mandatory Information)The following supplementary re

47、quirements 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 9 of thisspecification.A1. THIRD PARTY CERTIFICATION OR INSPECTION.A1.1 Third Party certifiers o

48、r 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 verifycompliance with Sections 4-8 of this standard. Copies of themanufacturers test reports shal

49、l 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 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.ASTM International takes no position respecting the validity of any patent rights asserted

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