1、ASME B16.18-2001Revision of ANSI B16.18-1984 (R1994)CAST COPPER ALLOYSOLDER JOINTPRESSURE FITTINGSAN AMERICAN NATIONAL STANDARDCopyright ASME International Provided by IHS under license with ASMENot for ResaleNo reproduction or networking permitted without license from IHS-,-AN AMERICAN NATIONAL STA
2、NDARDCAST COPPER ALLOYSOLDER JOINTPRESSURE FITTINGSASME B16.18-2001Revision of ANSI B16.18-1984 (R1994)Copyright ASME International Provided by IHS under license with ASMENot for ResaleNo reproduction or networking permitted without license from IHS-,-Date of Issuance: April 19, 2002The next edition
3、 of this Standard is scheduled for publication in 2007. Therewill be no addenda issued to this edition.ASME issues written replies to inquiries concerning interpretations oftechnical aspects of this Standard.ASME is the registered trademark of The American Society of Mechanical Engineers.This code o
4、r standard was developed under procedures accredited as meeting the criteria forAmerican National Standards. The Standards Committee that approved the code or standardwas balanced to assure that individuals from competent and concerned interests have had anopportunity to participate. The proposed co
5、de or standard was made available for public reviewand comment that provides an opportunity for additional public 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
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9、 be reproduced in any form,in an electronic retrieval system or otherwise,without the prior written permission of the publisher.The American Society of Mechanical EngineersThree Park Avenue, New York, NY 10016-5990Copyright 2002 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll Rights ReservedPrinte
10、d in U.S.A.Copyright ASME International Provided by IHS under license with ASMENot for ResaleNo reproduction or networking permitted without license from IHS-,-CONTENTSForeword vCommittee Roster viCorrespondence With the B16 Committee . vii1 Scope . 11.1 1General 1.2 1Units of Measurement 1.3 1Conve
11、ntion 1.4 1References .1.5 1Quality System .2 PressureTemperature Ratings 12.1 1Rating of Fitting and of Joint 2.2 1Bursting Strength .3 Abbreviations 24 Size . 25 Marking 26 Material 27 Metal Thickness 28 Inspection Tolerance . 28.1 2Linear Dimensions .8.2 2Ovality 8.3 2Gaging of Solder Joint Ends
12、8.4 2Standard Gaging Method of Threaded Ends 8.5 4Alignment .9 Threaded Ends . 49.1 4Thread Type .9.2 4Countersink or Chamfer 9.3 4Threading Tolerances .9.4 5Thread Length .10 Configuration of Threaded Ends 511 Test . 5Figure1 Method of Designating Openings of Fittings . 3iiiCopyright ASME Internati
13、onal Provided by IHS under license with ASMENot for ResaleNo reproduction or networking permitted without license from IHS-,-Tables1 Internal Working-Pressure Rating for Cast Copper Alloy Fittings, psi (kPa) 52 Inspection Tolerances . 53 Dimensions of Solder Joint Ends 64 Dimensions of Elbows, Tees,
14、 and 45 deg Elbows 75 Dimensions of Reducing 90 deg Elbows . 96 Dimensions of Reducing Tees . 107 Dimensions of Couplings . 138 Dimensions of Caps and Plugs 159 Dimensions of Fitting Reducers . 1610 Dimensions of Solder Joint Elbows and Tees With Pipe Thread Ends (StraightSizes) . 1811 Dimensions of
15、 Solder Joint Elbows and Tees With Pipe Thread Ends (ReducingSizes) . 1912 Dimensions of Solder Joint Adapters and Fitting Adapters With Pipe ThreadEnds (Straight and Reducing Sizes) . 2113 Dimensions of Return Bends (Straight Sizes) . 2314 Dimensions of Supply and Return Tees 2315 Dimensions of Bas
16、eboard Tees (FH11547FH11547C) 2416 Dimensions of Tees 2417 Dimensions of Baseboard Tees (CH11547FH11547C) 2518 Dimensions of Flush Bushings (FTGH11547C) 2619 Dimensions of Flush Bushings (FTGH11547F) . 26Nonmandatory AnnexesA Strength of Solder Joints 27B Metric (SI) Tables 29C Fitting Rating 51D Re
17、ferences . 52E Quality System Program 53ivCopyright ASME International Provided by IHS under license with ASMENot for ResaleNo reproduction or networking permitted without license from IHS-,-FOREWORDThis American National Standard for solder joint fittings was originally developed by asubcommittee o
18、f American Standards Association (ASA) Sectional Committee A40 onMinimum Requirements for Plumbing and Standardization of Plumbing Equipment, organizedin August 1928, under the procedures of the ASA. Subcommittee No. 11 on Solder-JointFittings for Tubing was appointed in October 1936.At its first me
19、eting, the subcommittee was informed of the investigation of solder jointsbeing carried out by the National Bureau of Standards (now the National Institute ofStandards and Technology). It was decided that the committees scope should cover onlysolder fittings for use in plumbing. A subgroup was appoi
20、nted to study the tolerances ofcommercial fittings, including depth of bore, laying lengths, and diameters of copper tube.A draft standard was sent to the subcommittee in February 1939; a revision was distributedin August to selected organizations and individuals for review. A new subcommittee draft
21、dated April 1940 was approved by Sectional Committee A40, the sponsor, and followingASA approval, was published in January 1941 as ASA A40.3-1941.In 1949, the sponsors agreed to transfer responsibility for solder joint fittings to SectionalCommittee B16 of ASA, because the fittings were being used i
22、n many applications otherthan plumbing. Subcommittee 9, Standardization of Solder Joint Fittings was establishedand charged with developing a revised standard. An April 1949 draft was distributed forindustry review, resulting in recommended changes. A new draft was approved by SectionalCommittee B16
23、, sponsor organizations, and ASA and published as ASA B16.18-1950.Work began in 1958 on a revision, including improvements in language. It was approvedby B16, sponsor organizations, and ASA and published as ASA B16.18-1963. Starting in1969, a comprehensive review resulted in revisions to clarify the
24、 text and to permit additionalmaterial. Final approval was granted by the American National Standards Institute (formallyASA) on March 2, 1972, for publication as ANSI B16.18-1972.The subcommittee, now Subcommittee I, began a new revision on 1974, resulting in theaddition of supply and return tees,
25、baseboard tees, and flush bushings, as well as metrication,and change of “bronze” to “copper alloy.” The draft finally approved was published asANSI B16.18-1978.In 1982, American National Standards Committee B16 became the ASME B16 StandardsCommittee, operating with the same scope under ASME procedu
26、res accredited by ANSI.Subsequently, Subcommittee I merged with Subcommittee J, which had a related scope. Ageneral review was then started, resulting in a number of editorial changes and a fewpictorial corrections. Table 2 (now Table 3) was updated to three place decimals from four,bringing the tab
27、le more in line with practical gaging methods. Table B2 (now Table B3)was correspondingly corrected. Following approval by Subcommittee J, the B16 StandardsCommittee, and ASME, the American National Standards Institute granted approval onJanuary 13, for publication as ANSI B16.18-1984. The standard
28、was reaffirmed in 1994with no change.This 2001 edition of B16.18 contains a defined bursting strength, defined standard gagingmethod of threaded ends, and other clarifications and updates to text. Following approvalby the Standards Committee and ASME, approval as an American National Standard wasgiv
29、en on October 17, 2001 with the designation ASME B16.18-2001.Requests for interpretations and suggestions for revision should be sent to the Secretary,B16 Committee, The American Society of Mechanical Engineers, Three Park Avenue, NewYork, NY 10016-5990.vCopyright ASME International Provided by IHS
30、under license with ASMENot for ResaleNo reproduction or networking permitted without license from IHS-,-ASME B16 COMMITTEEStandardization of Valves, Flanges, Fittings, andGaskets(The following is the roster of the Committee at the time of approval of this Standard.)OFFICERSW. N. McLean, ChairH. R. S
31、onderegger, Vice ChairP. A. Reddington, SecretaryCOMMITTEE PERSONNELR. W. Barnes, Anric EnterprisesR. R. Brodin, Fisher Controls International, Inc.M. A. Clark, Nibco, Inc.A. Cohen, Arthur Cohen however, they should not contain proprietary names orinformation.Requests that are not in this format wil
32、l be rewritten in this format by the Committeeprior to 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 is available. Further, perso
33、ns aggrieved byan interpretation may appeal to the cognizant ASME Committee or Subcommittee. ASMEdoes not “approve,”“certify,”“rate,” or “endorse” any item, construction, proprietary device,or activity.Attending Committee Meetings. The B16 Main Committee regularly holds meetings, whichare open to th
34、e public. Persons wishing to attend any meeting should contact the Secretaryof the B16 Main Committee.viiCopyright ASME International Provided by IHS under license with ASMENot for ResaleNo reproduction or networking permitted without license from IHS-,-Copyright ASME International Provided by IHS u
35、nder license with ASMENot for ResaleNo reproduction or networking permitted without license from IHS-,-ASME B16.18-2001CAST COPPER ALLOY SOLDER JOINT PRESSURE FITTINGS1 SCOPE1.1 GeneralThis Standard for cast copper alloy solder jointpressure fittings designed for use with copper watertube, establish
36、es requirements for:(a) pressure-temperature ratings;(b) abbreviations for end connections;(c) sizes and method of designating openings offittings;(d) marking;(e) material;(f) dimensions and tolerances; and(g) tests.1.2 Units of MeasurementThe values stated in either U.S. Customary (inch-lb.) or SI
37、(metric) units of measure shall be regardedseparately as standard. Within the main text, U.S.Customary units are given. For convenience, the SIunits are shown in parentheses and in NonmandatoryAnnex B. The values stated in each system are notexact equivalents; therefore, each system shall be usedind
38、ependently of the other.NOTE: Combining values from the two systems may result innonconformance with the Standard.1.3 ConventionFor the purpose of determining conformance withthis Standard, the convention for fixing significant digitswhere units, maximum or minimum values, are specifiedshall be “rou
39、nding off” as defined in ASTM PracticeE 29. This requires that an observed or calculated valueshall be rounded off to the nearest unit in the lastright-hand digit used for expressing the limit.11.4 ReferencesStandards and specifications adopted by reference inthis Standard are shown in Nonmandatory
40、Annex D,which is part of this Standard. It is not consideredpractical to identify the specific edition of each standardand specification in the individual references. Instead,the specific edition reference is identified in Nonmanda-tory Annex D.1.5 Quality SystemRequirements relating to the product
41、manufacturersQuality System Programs are described in Nonmanda-tory Annex E.2 PRESSURE-TEMPERATURE RATINGS2.1 Rating of Fitting and of JointThe internal working-pressure-temperature rating fora solder joint fitting is dependent not only on fittingand tube strength, but also on the composition of the
42、solder used for the joint and selection of valves andappurtenances.The internal working-pressure ratings of the systemshall be the lowest of the values shown in Table 1and Nonmandatory Annex A, and those of the tube,valves, or appurtenances.Pressure-temperature ratings for solder joints to thedimens
43、ions of Table 3, made with typical commercialsolders, are given in Nonmandatory Annex A.2.2 Bursting StrengthWhen tested at 73F5F (23C2C) fittings manu-factured to this standard shall have an ambient-tempera-ture bursting strength of at least four times the 100F(38C) internal working-pressure rating
44、 as shown inTable 1.Copyright ASME International Provided by IHS under license with ASMENot for ResaleNo reproduction or networking permitted without license from IHS-,-CAST COPPER ALLOY SOLDER JOINT PRESSURE FITTINGSASME B16.18-20013 ABBREVIATIONSThe following symbols are used to designate thetype
45、of fitting end:C p solder-joint fitting end made to receive cop-per tube diameter (female)FTG p solder-joint fitting end made to copper tubediameter (male)F p internal ANSI standard taper pipe thread(female) NPTM p external ANSI standard taper pipe thread(male) NPT4 SIZEThe size of the fittings show
46、n in Table 3 and TableA1 corresponds to standard water tube size as shownin ASTM B 88, Specification for Seamless CopperWater Tube. The size of the threaded ends correspondsto nominal pipe size as shown in ASME B1.20.1.Fittings are designated by the size of the openingsin the sequence illustrated in
47、 Fig. 1.5 MARKINGEach fitting shall be permanently marked with themanufacturers name or trademark and other applicablemarkings as required by MSS-SP-25. Marking of fittingsless than Standard Water Tube Size12,oronanyfittingwhere it damages soldering surfaces is not required.6 MATERIALCastings shall
48、be copper alloy produced to meet:(a) the requirement of ASTM B 62 Alloy C83600;(b) the chemical and tensile requirements of ASTMB 584 Alloy C83800 or C84400 and in all otherrespects comply with the requirements of ASTM B 62.7 METAL THICKNESSDimensional variations occur in the casting process.Pattern
49、 equipment shall be designed to produce themetal thickness given for fittings in Table 3 or TableB3. The minimum wall-thickness shall not be less than90% of the body and joint wall-thickness as shown inTable 3 or Table B3.28 INSPECTION TOLERANCE8.1 Linear DimensionsAn inspection tolerance as shown in Table 2 shallbe allowed on center-to-shoulder, center-to-center, cen-ter-to-threaded end, and shoulder-to-th
