1、AN AMERICAN NATIONAL STANDARD ASME B16.10-2017(Revision of ASME B16.10-2009)Face-to-Faceand End-to-End Dimensionsof ValvesASME B16.10-2017(Revision of ASME B16.10-2009)Face-to-Faceand End-to-EndDimensionsof ValvesAN AMERICAN NATIONAL STANDARDTwo Park Avenue New York, NY 10016 USADate of Issuance: Ju
2、ne 2, 2017The next edition of this Standard is scheduled for publication in 2021.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 interpretations are pu
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11、her.The American Society of Mechanical EngineersTwo Park Avenue, New York, NY 10016-5990Copyright 2017 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.CONTENTSForeword ivCommittee Roster . viCorrespondence With the B16 Committee vii1 Scope 12 Definitions . 23 Facing
12、s of Flanged Valves . 34 Variations of Length Within a Class of Valves. 35 Tolerances . 3Figures1 Flange Facings and Their Relationships 52 Welding Ends . 6Tables1 Class 125 Cast Iron Flanged and Class 150 Steel Flanged and Buttwelding EndValves, Face-to-Face and End-to-End Dimensions 72 Class 250 C
13、ast Iron Flanged and Class 300 Steel Flanged and Buttwelding EndValves, Face-to-Face and End-to-End Dimensions 123 Class 600 Steel Flanged and Buttwelding End Valves, Face-to-Face and End-to-EndDimensions . 154 Class 900 Steel Flanged and Buttwelding End Valves, Face-to-Face and End-to-EndDimensions
14、 . 175 Class 1500 Steel Flanged and Buttwelding End Valves, Face-to-Face and End-to-End Dimensions 196 Class 2500 Steel Flanged and Buttwelding End Valves, Face-to-Face and End-to-End Dimensions 217 Classes 125 and 250 Cast Iron and Classes 150 to 2500 Steel Wafer Type Valves,Face-to-Face Dimensions
15、 228 Classes 25 and 125 Cast Iron and Classes 150 to 600 Steel Butterfly Valves,Face-to-Face Dimensions 239 Determination of Face-to-Face and End-to-End Dimensions of Flanged ValvesHaving Various Flange Facings 2410 Classes 150 to 2500 Steel Valves Having End Flanges With Ring Joint Facings,End-to-E
16、nd Dimensions . 25Mandatory AppendixI Face-to-Face and End-to-End Dimensions: U.S. Customary Units 27Nonmandatory AppendixA References 47iiiFOREWORDIn 1921, the American Engineering Standards Committee, later the American StandardsAssociation (ASA), organized Sectional Committee B16 to unify and fur
17、ther develop nationalstandards for pipe flanges and fittings (and, later, for valves, gaskets, and valve actuators).Cosponsors of the B16 Committee were The American Society of Mechanical Engineers (ASME),the Heating and Piping Contractors National Association now the Mechanical ContractorsAssociati
18、on of America (MCAA), and the Manufacturers Standardization Society of the Valveand Fittings Industry (MSS). Cosponsors were later designated as cosecretariat organizations.Pioneer work on standardization of end-to-end dimensions of valves began in 1917 under thedirection of J. A. Stevens. It was pu
19、t aside at the end of World War I and interest did not reviveuntil 1926. ASA and ASME agreed to include the topic in the scope of the B16 Committee, andSubcommittee 5 (now Subcommittee E) was established for the purpose. Work began in 1928and covered ferrous flanged-end gate, globe, angle, and check
20、 valves.Development of a national standard was hindered by the diversity of existing practices andby adverse economic conditions in the early 1930s. A proposed 1933 American Standard for face-to-face dimensions of ferrous flanged valves did not gain acceptance, even though it was largelybased on a 1
21、931 Standard Practice of MSS. Further work and industry developments led to ameeting in May 1937, which undertook to reconcile differences among the draft ASA standard,two American Petroleum Institute (API) standards (5-G-1 on pipeline valves and 600A on flangedOS however, they should not contain pr
22、oprietary names orinformation.viiRequests that are not in the format described above may be rewritten in the appropriate formatby the Committee prior to being answered, which may inadvertently change the intent of theoriginal request.ASME procedures provide for reconsideration of any interpretation
23、when or if additionalinformation that might affect an interpretation is 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 activit
24、y.Attending Committee Meetings. The B16 Standards Committee regularly holds meetingsand/or telephone conferences that are open to the public. Persons wishing to attend any meetingand/or telephone conference should contact the Secretary of the B16 Standards Committee.viiiASME B16.10-2017FACE-TO-FACE
25、AND END-TO-ENDDIMENSIONS OF VALVES1 SCOPE1.1 General1.1.1 Application. This Standard covers face-to-faceand end-to-end dimensions of straightway valves, andcenter-to-face and center-to-end dimensions of anglevalves. Its purpose is to ensure installation interchange-ability for valves of a given mate
26、rial, type, size, ratingclass, and end connection. Face-to-face and center-to-face dimensions apply to flanged end valves with facingsdefined in para. 2.3.1 and to other valves intended forassembly between flat face or raised face flanges. End-to-end dimensions apply to grooved end, buttweldingend,
27、and flanged end valves with facings defined inpara. 2.3.3. Center-to-end dimensions apply to buttweld-ing end and to flanged end valves with facings definedin para. 2.3.3.1.1.2 Data Source Reference. Throughout thisStandard, data references are cited, e.g., “extractedfrom” and “compatible with.” The
28、se data are relevantto the reference standard in place at the date shown inthe Foreword for American National Standards Instituteapproval of this Standard.1.2 Standard UnitsThis Standard states values in both SI (Metric) andU.S. Customary units. These systems of units are to beregarded separately as
29、 standard. Within the text, theU.S. Customary units are shown 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 valuesfr
30、om the two systems constitutes nonconformance withthe Standard.1.3 Cast Iron ValvesOnly flanged end valves (and others intended forassembly between flanges) are covered by this Standard.Mating dimensions and facings of flanged ends conformto those in ASME B16.1. Dimensional tables for varioustypes a
31、nd sizes of valves are specified in paras. 1.3.1through 1.3.4.1.3.1 Gate, Plug, and Check Valves(a) Class 125 Tables 1 and I-1(b) Class 250 Tables 2 and I-211.3.2 Globe and Angle Valves(a) Class 125 Tables 1 and I-1(b) Class 250 Tables 2 and I-21.3.3 Wafer Swing Check Valves(a) Class 125 Tables 7 an
32、d I-7(b) Class 250 Tables 7 and I-71.3.4 Butterfly Valves(a) Class 25 Tables 8 and I-8(b) Class 125 Tables 8 and I-81.4 Ductile Iron ValvesOnly flanged end valves (and others intended forassembly between flanges) are covered. Mating dimen-sions and facings of flanged ends conform to those inASME B16
33、.42. Valves are rated Class 150 and Class 300.The following cast iron and steel dimensional tables arealso used for ductile valves:(a) Class 150 Tables 1 and I-1(b) Class 300 Tables 2 and I-21.5 Steel and Alloy ValvesThis category includes carbon, alloy, and stainlesssteels, and the nonferrous mater
34、ials listed inASME B16.34. It includes flanged, buttwelding, andgrooved ends, as well as the types of valves intendedfor assembly between flanges. Mating dimensions andfacings of flanged ends conform to those in ASME B16.5,ASME B16.47, Series A, or MSS SP-44. For flanged endbutterfly valves, refer t
35、o Note (2) of Table 8 (Table I-8)for flange information. For flangeless or wafer valvesintended for assembly between flanges, refer to Tables 7and 8 (Tables I-7 and I-8) for flange information. Onlybuttwelding end valves in rating Classes 150 through2500 are included in this Standard. Dimensional ta
36、blesfor various types and sizes of valves are specified inparas. 1.5.1 through 1.5.5.1.5.1 Gate, Globe, Angle, Check, Plug, and BallValves(a) Class 150 Tables 1 and I-1(b) Class 300 Tables 2 and I-2(c) Class 600 Tables 3 and I-3(d) Class 900 Tables 4 and I-4(e) Class 1500 Tables 5 and I-5(f) Class 2
37、500 Tables 6 and I-6ASME B16.10-20171.5.2 Y-Pattern Globe and Y-Pattern Swing CheckValves Class 150 Tables 1 and I-11.5.3 Wafer Knife Gate Valves(a) Class 150 Tables 7 and I-7(b) Class 300 Tables 7 and I-71.5.4 Wafer Swing Check Valves Class 150 to 2500 Tables 7 and I-71.5.5 Butterfly Valves(a) Clas
38、s 150 Tables 8 and I-8(b) Class 300 Tables 8 and I-8(c) Class 600 Tables 8 and I-81.6 ConventionFor determining conformance with this Standard, theconvention for fixing significant digits where limits(maximum and minimum values) are specified shall beas defined in ASTM E29. This requires that an obs
39、ervedor calculated value be rounded off to the nearest unitin the last right-hand digit used for expressing the limit.Decimal values and tolerances do not imply a particularmethod of measurement.2 DEFINITIONS2.1 Valve Size Designation2.1.1 Nominal Diameter (DN). The size of a valve isdesignated by t
40、he nominal size of its end connections.This is denoted by (DN), a dimensionless number indi-rectly related to the physical size of the connecting pipeSee Tables 1 through 10 (Tables I-1 through I-10). Thevalve size is not necessarily the same as the inside diame-ter or port diameter.2.1.2 Valve Size
41、 Designation. NPS, followed by adimensionless number, is the designation for nominalvalve size. NPS is related to the reference nominal diame-ters, DN, used in international standards. The relation-ship is, typically, as follows:NPS DN148381012153420125114321124025021265384 100GENERAL NOTE: For NPS
42、4, the related DN p 25 multiplied bythe NPS number.22.1.3 Reduced Port Valves(a) Reduced port, gate, and ball valves conforming toAPI 6D are designated for size by two numbers, the firstbeing the NPS on the valve ends, the second being theNPS of the port (seats, moving parts, etc.); e.g., NPS 6H1154
43、74designates a valve of end size NPS 6 with a port tomatch NPS 4. These valves shall have face-to-face orend-to-end dimensions corresponding to valves havingthe same size end connections; i.e., a NPS 6 H11547 4 valveshall have the face-to-face or end-to-end dimensions ofa NPS 6 valve.(b) Reduced por
44、t, pressure seal bonnet, gate, globe,and check valves are designated for size by three num-bers, the first and last being the NPS of the valve ends,the second being the NPS of the port; e.g., NPS 6H115474H115476designates a valve having ends matching NPS 6 with aport to match NPS 4. Likewise, NPS 6
45、H11547 4 H11547 4 woulddesignate a valve having one end matching NPS 6, theother matching NPS 4, and the port matching NPS 4.These valves shall have face-to-face or end-to-enddimensions corresponding to valves having the sameport size; i.e., either a NPS 6 H11547 4 H11547 6oraNPS6H11547 4 H11547 4va
46、lve shall have the face-to-face or end-to-end dimen-sions of a NPS 4 valve.2.2 Pressure Rating DesignationsClass, followed by a dimensionless number, is thestandardized designation for pressure temperature-ratings used for valves. The numerical designations inuse are as follows:(a) for cast iron: 25
47、, 125, 250(b) for ductile iron: 150, 300(c) for steel:1150, 300, 600, 900, 1500, 25002.3 Flanged Valve Dimensions2.3.1 Face-to-Face. The face-to-face dimension forflanged valves is the distance between the extreme endswhich are the gasket contact surfaces (see Fig. 1). Face-to-face applies to flange
48、d valves having the followingnominal flange facing identifiers:(a) flat(b) 2 mm (0.06 in.) raised(c) 7 mm (0.25 in.) raised(d) large or small male2(e) large or small tongue22.3.2 Installed Face-to-Face. The installed face-to-face dimension of certain butterfly valves see Table 8(Table I-8), Note (6)
49、 may include allowances for gasketor resilient-facing compression. Refer to MSS SP-67 fordefinitive illustrations.2.3.3 End-to-End. For those flanged valves wherethe gasket contact surfaces are not located at the extreme1Includes all ferrous and nonferrous materials in ASME B16.34.2Face-to-face dimensions in Tables 1 through 6 (Tables I-1through I-6) must be adjusted as indicated in Table 9 (Table I-9).ASME B16.10-2017ends of the valve, the distance between the extreme endsis described as the end-to-end dimension and applies
