1、AN AMERICAN NATIONAL STANDARD ASME B16.15-2013(Revision of ASME B16.15-2011)Cast Copper Alloy Threaded FittingsClasses 125 and 250ASME B16.15-2013(Revision of ASME B16.15-2011)Cast CopperAlloy ThreadedFittingsClasses 125 and 250AN AMERICAN NATIONAL STANDARDTwo Park Avenue New York, NY 10016 USADate
2、of Issuance: December 6, 2013The next edition of this Standard is scheduled for publication in 2018.ASME issues written replies to inquiries concerning interpretations of technical aspects of thisStandard. Periodically certain actions of the ASME B16 Committee may be published as Cases. Casesand int
3、erpretations are published on the ASME Web site under the Committee Pages athttp:/cstools.asme.org/ as they are issued.Errata to codes and standards may be posted on the ASME Web site under the Committee Pages toprovide corrections to incorrectly published items, or to correct typographical or gramm
4、atical errorsin codes and standards. Such errata shall be used on the date posted.The Committee Pages can be found at http:/cstools.asme.org/. There is an option available toautomatically receive an e-mail notification when errata are posted to a particular code or standard.This option can be found
5、on the appropriate Committee Page after selecting “Errata” in the “PublicationInformation” section.ASME is the registered trademark of The American Society of Mechanical Engineers.This code or standard was developed under procedures accredited as meeting the criteria for American NationalStandards.
6、The Standards Committee that approved the code or standard was balanced to assure that individuals fromcompetent and concerned interests have had an opportunity to participate. The proposed code or standard was madeavailable for public review and comment that provides an opportunity for additional p
7、ublic input from industry, academia,regulatory agencies, and the public-at-large.ASME does not “approve,” “rate,” or “endorse” any item, construction, proprietary device, or activity.ASME does not take any position with respect to the validity of any patent rights asserted in connection with anyitem
8、s mentioned in this document, and does not undertake to insure anyone utilizing a standard against liability forinfringement of any applicable letters patent, nor assumes any such liability. Users of a code or standard are expresslyadvised that determination of the validity of any such patent rights
9、, and the risk of infringement of such rights, isentirely their own responsibility.Participation by federal agency representative(s) or person(s) affiliated with industry is not to be interpreted asgovernment or industry endorsement of this code or standard.ASME accepts responsibility for only those
10、 interpretations of this document issued in accordance with the establishedASME procedures and policies, which precludes the issuance of interpretations by individuals.No part of this document may be reproduced in any form,in an electronic retrieval system or otherwise,without the prior written perm
11、ission of the publisher.The American Society of Mechanical EngineersTwo Park Avenue, New York, NY 10016-5990Copyright 2013 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.CONTENTSForeword ivCommittee Roster . viCorrespondence With the B16 Committee viiSummary of Cha
12、nges viii1 Scope . 12 General . 13 PressureTemperature Ratings 14 Size. 25 Marking . 26 Material . 27 Threads . 28 Ribs 39 Surface Finish . 310 Fitting Dimensions . 311 Tolerances. 312 Pressure Test 3Figure1 Identification of Reducing Fittings 4Tables1 PressureTemperature Ratings 42 Dimensions of 90
13、-deg Elbows, Tees, Crosses, 45-deg Elbows, and Couplings(Straight Sizes) Class 125 53 Dimensions of Caps Class 125 . 64 Dimensions of Outside Head, Inside Head, and Face Bushings Class 250 75 Dimensions of 90-deg Elbows (Reducing Sizes) Class 125 . 86 Dimensions of Tees (Reducing Sizes) Class 125 .
14、97 Dimensions of 90-deg Elbows (Reducing Sizes) Class 250 . 108 Dimensions of Tees (Reducing Sizes) Class 250 . 119 Dimensions of Square Head and Square Socket Plugs 1210 Dimensions of Reducers, Closed and Open Pattern Return Bends, and 45-deg YBranches (Straight Sizes) Class 125 . 1311 Dimensions o
15、f 90-deg and 45-deg Street Elbows Class 125 1412 Dimensions of 90-deg Elbows, Tees, Crosses, 45-deg Elbows, and Couplings(Straight Sizes) Class 250 1513 Inspection Tolerances, Center-to-End and Center-to-Center . 16Mandatory AppendicesI Ratings and Dimensions of Fittings in U.S. Customary Units . 17
16、II References 29Nonmandatory AppendixA Quality System Program 30iiiFOREWORDAs early as the spring of 1921, the consolidation and further development of threaded andflanged fittings standards in force in this country seemed desirable. To meet this need, theAmerican Standards Association (ASA) now the
17、 American National Standards Institute (ANSI)authorized the organization of a Sectional Committee on the Standardization of Pipe Flangesand Flanged Fittings (B16), with the Heating, Piping, and Air Conditioning Contractors NationalAssociation (now known as the Mechanical Contractors Association of A
18、merica), theManufacturers Standardization Society of the Valve and Fittings Industry (MSS), and TheAmerican Society of Mechanical Engineers acting as joint sponsors.In June 1927, the Manufacturers Standardization Society of the Valve and Fittings Industryappointed a committee on Nonferrous Screw Fit
19、tings for the purpose of developing standardsfor products commonly designated as threaded pipe fittings of brass, bronze, or other nonferrousmaterials. At the time, brass threaded fittings were furnished from a number of different patternswith wide variations in dimensions and weights.MSS SP-10 for
20、125-lb Bronze Screwed Fittings and MSS SP-11 for 250-lb Bronze Screwed Fittingswere developed and adopted by the MSS in September 1930. The lighter fittings were patternedafter malleable iron threaded fittings, then standardized in ASA B16c, while the heavier productswere patterned after the cast ir
21、on threaded fittings covered by ASA B16d. Thus, a practice wasstandardized that had been found satisfactory in the valve and fittings industry over many years.Following the publication of revised editions in 1941 and 1943, SP-10 was submitted toSubcommittee No. 2 of ASA Sectional Committee B16 for a
22、doption as an American Standard.Final approval of that edition was granted on January 23, 1947 with the designation ASA B16.15.A reaffirmation of the Standard was granted in 1952, and a complete revision for updating theStandard was approved by ASA on March 25, 1958.After revision in 1944, SP-11 was
23、 submitted to Subcommittee No. 2 in August 1947, and ASAgranted the approval of B16.17 on April 6, 1949.In 1961, Subcommittee No. 2 reviewed the two Standards and noted that the historical reasonfor their separate existence no longer applied. Accordingly, the two were combined intoASA B16.15 with fi
24、nal ASA approval granted on February 6, 1964.In 1969, the document was reviewed by Subcommittee No. 2, and minor changes were proposed.Final ANSI approval was granted on April 14, 1971.In 1977, the MSS submitted a proposed revision to Subcommittee B (formerly No. 2) for B16review and approval. Chang
25、es included the addition of metric (SI) units and editorial updating.ANSI granted final approval on December 4, 1978.In 1982, American National Standards Committee B16 was reorganized as the ASME B16Committee, operating under procedures accredited by ANSI. The revision, following regular 5-yrreview
26、by Subcommittee B, involved rationalization of metric equivalent dimensions and updatingof reference standards. Following approval within ASME, ANSI approval was granted on July30, 1985 with the new designation ANSI/ASME B16.15-1985.In 1994, and again in 2004, the document was reaffirmed.In 2005, Su
27、bcommittee B of the ASME B16 Committee changed the title to Cast Copper AlloyThreaded Fittings, a section on leakage capacity was added, and nominal size (DN) accordingto ISO 6078 was addressed as SI values were positioned in the main text, while U.S. Customaryvalues were positioned in Mandatory App
28、endix I. The reference for gaging internal fitting threadswas made clearer by using the wording from ASME B1.20.1, Pipe Threads, General Purpose(Inch). Many clarifying and editorial revisions were made in order to improve the text. Afterapproval by ASME, ANSI approval was granted on August 25, 2006
29、with the designation ofASME B16.15-2006.In 2011, references to ASME standards were revised to no longer list specific edition years; thelatest edition of ASME publications applies unless stated otherwise. Materials manufactured toother editions of the referenced ASTM standards have been permitted to
30、 be used to manufactureivfittings meeting the requirements of this Standard as long as the fitting manufacturer verifiesthe material meets the requirements of the referenced edition. Following approval by the StandardsCommittee and the ASME Board on PTCS, the revision to the 2006 edition was approve
31、d as anAmerican National Standard by ANSI on August 9, 2011 with the designation ASME B16.15-2011.In this 2013 edition, section 7 was revised and now requires threads and gaging practices tobe as per and identical with ASME B1.20.1 and other B16 Standards. Following approval by theASME B16 Standards
32、 Committee, approval as an American National Standard was given byANSI on July 29, 2013 with the new designation ASME B16.15-2013.All requests for interpretations or suggestions for revisions should be sent to the Secretary,B16 Committee, The American Society of Mechanical Engineers, Two Park Avenue
33、, New York,NY 10016-5990.vASME B16 COMMITTEEStandardization of Valves, Flanges, Fittings, and Gaskets(The following is the roster of the Committee at the time of approval of this Standard.)STANDARDS COMMITTEE OFFICERSW. B. Bedesem, ChairG. A. Jolly, Vice ChairC. E. OBrien, SecretarySTANDARDS COMMITT
34、EE PERSONNELA. Appleton, Alloy Stainless Products Co., Inc.R. W. Barnes, ANRIC Enterprises, Inc.W. B. Bedesem, ConsultantR. M. Bojarczuk, ExxonMobil Research and Engineering Co.D. F. Buccicone, ConsultantA. M. Cheta, Shell Exploration and Production Co.M. A. Clark, NIBCO, Inc.G. A. Cuccio, Capitol M
35、anufacturing Co.C. E. Davila, Crane EnergyD. R. Frikken, Becht Engineering Co.K. A. Hettler, U.S. Coast GuardG. A. Jolly, ConsultantSUBCOMMITTEE B THREADED FITTINGS (EXCEPT STEEL), FLANGES, AND FLANGED FITTINGSK. Barron, Chair, Ward ManufacturingW. Levan, Vice Chair, Cast Iron Soil Pipe InstituteC.
36、R. Ramcharran, Secretary, The American Society of MechanicalEngineersW. Bliss, Tyler Pipe Co.M. A. Clark, NIBCO, Inc.J. R. Holstrom, Val-Matic Valve and Manufacturing Corp.viM. Katcher, Haynes InternationalW. N. McLean, B however, they shouldnot contain proprietary names or information.Requests that
37、 are not in this format will be rewritten in this format by the Committee priorto being answered, which may inadvertently change the intent of the original request.ASME procedures provide for reconsideration of any interpretation when or if additionalinformation that might affect an interpretation i
38、s available. Further, persons aggrieved by aninterpretation may appeal to the cognizant ASME Committee or Subcommittee. ASME does not“approve,” “certify,” “rate,” or “endorse” any item, construction, proprietary device, or activity.Attending Committee Meetings. The B16 Standards Committee regularly
39、holds meetings, whichare open to the public. Persons wishing to attend any meeting should contact the Secretary ofthe B16 Standards Committee.viiASME B16.15-2013SUMMARY OF CHANGESFollowing approval by the ASME B16 Committee and ASME, and after public review,ASME B16.15-2013 was approved by the Ameri
40、can National Standards Institute on July 29, 2013.ASME B16.15-2013 includes the following changes identified by a margin note, (13).Page Location Change2 Section 7 Revised in its entirety12 Table 9 Note (1) revised25 Table I-9 Note (1) revised29 Mandatory Appendix II ASME B18.2.2 replaced by ASME B1
41、8.2.1viiiASME B16.15-2013CAST COPPER ALLOY THREADED FITTINGSClasses 125 and 2501 SCOPEThis Standard covers cast Classes 125 and 250 copperalloy threaded pipe fittings with provisions for substitut-ing wrought copper alloys for plugs, bushings, caps,and couplings in small sizes. This Standard include
42、s thefollowing:(a) pressuretemperature ratings(b) size and method of designating openings of reduc-ing pipe fittings(c) marking requirements(d) minimum requirements for casting quality andmaterials(e) dimensions and tolerances in SI (metric) andU.S. Customary units(f) threading requirements(g) press
43、ure test requirementsMandatory Appendix I provides table values inU.S. Customary units.2 GENERAL2.1 Relevant UnitsThis Standard states values in both SI (Metric) andU.S. Customary units. These systems of units are to beregarded separately as standard. Within the text, theU.S. Customary units are sho
44、wn in parentheses or inseparate tables that appear in Mandatory Appendix I.The values stated in each system are not exact equiva-lents; therefore, it is required that each system of unitsbe used independently of the other. Combining valuesfrom the two systems constitutes nonconformance withthe Stand
45、ard.2.2 ReferencesStandards and specifications containing provisions tothe extent referenced herein constitute requirements ofthis Standard. These referenced documents are listed inMandatory Appendix II.2.3 Quality SystemsRequirements relating to the product manufacturersQuality System Programs are
46、described inNonmandatory Appendix A.12.4 Denotation2.4.1 Pressure Rating Designation. Class followedby a dimensionless number is the designation forpressuretemperature ratings, e.g., Class 125 andClass 250.2.4.2 Size. NPS followed by a dimensionless num-ber is the designation for nominal fittings si
47、ze, e.g.,NPS 2.2.5 Time of Purchase, Manufacture, or InstallationThe pressuretemperature ratings in this Standard areapplicable upon its publication to all fittings within itsscope that otherwise meet its requirements. For unusedfittings maintained in inventory, the manufacturer of thefittings may c
48、ertify conformance to this edition providedthat it can be demonstrated that all requirements of thisedition have been met. Where such components wereinstalled in accordance with the pressuretemperatureratings of an earlier edition of this Standard, those rat-ings are applicable except as may be gove
49、rned by theapplicable code or regulation.2.6 User AccountabilityThis Standard cites responsibilities that are to beassumed by the fitting user in the areas of the tempera-ture at which the pressure rating is taken.2.7 Service ConditionsCriteria for selection of materials suitable for particu-lar fluid service are not within the scope of this Standard.3 PRESSURETEMPERATURE RATINGS3.1 GeneralPressuretemperature ratings for these pipe fittingsare shown in Tables 1 and I-l. All pressures are gage.3.2 RatingPressuretemperature ratings are independent of t
