1、6 Campus DriveFirst Floor NorthParsippany, New Jersey07054-4406 www.Pumps.org ANSI/HI2.12.2-2014ANSI/HI 2.12.2-2014American National Standard forRotodynamic Vertical Pumpsof Radial, Mixed, and Axial Flow Types for Nomenclature and DefinitionsThis page intentionally blank.Hydraulic Institute Standard
2、s, Copyright 1997-2014, All Rights ReservedANSI/HI 2.12.2-2014American National Standard forRotodynamic Vertical Pumpsof Radial, Mixed, and Axial Flow Typesfor Nomenclature and DefinitionsSponsorHydraulic Institute www.Pumps.org Approved April 8, 2014American National Standards Institute, Inc.Hydrau
3、lic Institute Standards, Copyright 1997-2014, All Rights ReservedApproval of an American National Standard requires verification by ANSI that therequirements for due process, consensus and other criteria for approval have been metby the standards developer.Consensus is established when, in the judge
4、ment of the ANSI Board of StandardsReview, substantial agreement has been reached by directly and materially affectedinterests. Substantial agreement means much more than a simple majority, but not nec-essarily unanimity. Consensus requires that all views and objections be considered,and that a conc
5、erted effort be made toward their resolution.The use of American National Standards is completely voluntary; their existence doesnot in any respect preclude anyone, whether he has approved the standards or not,from manufacturing, marketing, purchasing, or using products, processes, or proce-dures no
6、t conforming to the standards.The American National Standards Institute does not develop standards and will in nocircumstances give an interpretation of any American National Standard. Moreover, noperson shall have the right or authority to issue an interpretation of an AmericanNational Standard in
7、the name of the American National Standards Institute. Requestsfor interpretations should be addressed to the secretariat or sponsor whose nameappears on the title page of this standard.CAUTION NOTICE: This American National Standard may be revised or withdrawn atany time. The procedures of the Amer
8、ican National Standards Institute require thataction be taken periodically to reaffirm, revise, or withdraw this standard. Purchasers ofAmerican National Standards may receive current information on all standards by call-ing or writing the American National Standards Institute.Published ByHydraulic
9、Institute6 Campus Drive, First Floor NorthParsippany, NJ 07054-4406www.Pumps.org Copyright 2014 Hydraulic InstituteAll rights reserved.No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without prior written permission of the publisher.Printed
10、in the United States of AmericaISBN 978-1-935762-14-0AmericanNationalStandardRecycledpaperHydraulic Institute Standards, Copyright 1997-2014, All Rights ReservediiiContentsPageForeword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11、 . . . . . . . . . . . . . . . . . . . . . . . v2 Rotodynamic vertical pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.1 Types and nomenclature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12、. . . . . . . . . . . . . . . . 12.1.1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.1.2 Definition of rotodynamic vertical pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13、 . . . . . . . . . . . 12.1.3 Types of vertical pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.1.4 Classification by configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14、 . . . . 112.1.5 Classification by impeller design. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162.1.6 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192.
15、2 Definitions, terminology, and symbols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282.2.1 Rate of flow (capacity) (Q or q) Q . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302.2.2 Speed (n) . . . . .
16、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 312.2.3 Head (h) H . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 312.2.4 Condition points .
17、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 342.2.5 Suction conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 352.2.6 Power . . . . . . . .
18、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 362.2.7 Pump pressures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 372.2.8 Impeller balancing. .
19、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 372.2.9 Rotodynamic vertical pump icons vertically suspended. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37Appendix A Hollow-shaft driver . . . . . . . . . . . . .
20、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43Appendix B Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45Figures2.1.3 Vertical pump types vertically
21、 suspended rotor single and multistage . . . . . . . . . . . . . . . . . . . . . . . . .22.1.3.1 Vertical, multistage, submersible pump (VS0). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32.1.3.2 Deep-well pumps (VS1) . . . . . . . . . . . . . . . . . . .
22、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42.1.3.3a Vertical single or multistage, short setting, open line shaft (VS1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52.1.3.3b Mixed flow vertical open line shaft (VS1) . . . . . . . . . . . . . .
23、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62.1.3.3c Vertical double suction, short setting, open line shaft (VS2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72.1.3.3d Vertical, axial flow impeller (propeller) type (enclosed line shaft) below-floor discharge
24、 configuration(VS3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82.1.3.4a Line-shaft design sump pump (VS4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92.1.3.4b Cantilever shaft
25、 design sump pump (VS5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102.1.3.5a Vertical, single, or multistage diffuser (double casing) barrel or can pump (VS6). . . . . . . . . . . . . . . . 122.1.3.5b Vertical double suction, single or multistage barre
26、l or can pump (VS7) . . . . . . . . . . . . . . . . . . . . . . . 132.1.3.5c Vertical, multistage volute (double casing) barrel or can pump (VS7a). . . . . . . . . . . . . . . . . . . . . . . . 142.1.3.6 Vertical in-line casing diffuser pump (VS8) . . . . . . . . . . . . . . . . . . . . . . . . . .
27、. . . . . . . . . . . . . . . . . . . . 15Hydraulic Institute Standards, Copyright 1997-2014, All Rights Reservediv2.1.4.4 Typical vertical pump impeller types with rings (casing and/or impeller). . . . . . . . . . . . . . . . . . . . . . . .172.1.5.5a General vertical pump characteristic curves . .
28、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202.1.5.5b General vertical pump impeller configuration and specific speeds . . . . . . . . . . . . . . . . . . . . . . . . . . .202.1.6.6.1 Pump length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
29、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272.2.3.4 Datum elevation for various pump designs at eye of first-stage impeller . . . . . . . . . . . . . . . . . . . . . . . 332.2.4.6 Typical performance curve for rotodynamic pumps of lower specific speed design . . . . .
30、 . . . . . . . . . . 342.2.9.1.1.1 Submersible turbine (VS0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 382.2.9.1.2.1 Discharge through column diffuser wet pit (VS1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
31、 . 382.2.9.1.2.2 Discharge through column volute wet pit (VS2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 392.2.9.1.2.3 Discharge through column axial flow wet pit (VS3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 392.2.9.1.3.1 Separate discharge
32、line shaft vertical sump (VS4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 402.2.9.1.3.2 Separate discharge cantilever (VS5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 402.2.9.2.1 Vertically suspended double casing double sucti
33、on diffuser (VS6). . . . . . . . . . . . . . . . . . . . . . 412.2.9.2.2a Vertically suspended double casing - volute - diffuser (VS7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 412.2.9.2.2b Vertical volute multistage double casing pump (VS7a) . . . . . . . . . . . . . . . . . . . . . .
34、 . . . . . . . . . . . . 412.2.9.3.1 Vertically suspended in-line casing multistage diffuser (VS8) . . . . . . . . . . . . . . . . . . . . . . . . . . . 42A.1 Vertical hollow-shaft driver coupling dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44Ta
35、bles2.1.6.5 Alphabetical part name listing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212.2a Principal symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
36、. . . . . . . 282.2b Subscripts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Hydraulic Institute Standards, Copyright 1997-2014, All Rights ReservedvForeword (Not part of Standard)Purpose and aims
37、of the Hydraulic InstituteThe purpose and aims of the Institute are to promote the continued growth and well-being of pump users and man-ufacturers and further the interests of the public in such matters as are involved in manufacturing, engineering, dis-tribution, safety, transportation, and other
38、problems of the industry, and to this end, among other things:a) To develop and publish standards for pumps;b) To collect and disseminate information of value to its members and to the public;c) To appear for its members before governmental departments and agencies and other bodies in regard to mat-
39、ters affecting the industry;d) To increase the amount and to improve the quality of pump service to the public;e) To support educational and research activities;f) To promote the business interests of its members but not to engage in business of the kind ordinarily carried onfor profit or to perform
40、 particular services for its members or individual persons as distinguished from activitiesto improve the business conditions and lawful interests of all of its members.Purpose of Standards1) Hydraulic Institute Standards are adopted in the public interest and are designed to help eliminate misun-de
41、rstandings between the manufacturer, the purchaser, and/or the user and to assist the purchaser inselecting and obtaining the proper product for a particular need.2) Use of Hydraulic Institute Standards is completely voluntary. Existence of Hydraulic Institute Standardsdoes not in any respect preclu
42、de a member from manufacturing or selling products not conforming to theStandards.Definition of a Standard of the Hydraulic InstituteQuoting from Article XV, Standards, of the By-Laws of the Institute, Section B:“An Institute Standard defines the product, material, process or procedure with referenc
43、e to one or more of thefollowing: nomenclature, composition, construction, dimensions, tolerances, safety, operating characteristics,performance, quality, rating, testing and service for which designed.”Comments from usersComments from users of this standard will be appreciated, to help the Hydrauli
44、c Institute prepare even more usefulfuture editions. Questions arising from the content of this standard may be directed to the Technical Director of theHydraulic Institute. The inquiry will then be directed to the appropriate technical committee for provision of a suit-able answer.If a dispute aris
45、es regarding contents of an Institute standard or an answer provided by the Institute to a questionsuch as indicated above, the point in question shall be sent in writing to the Technical Director of the Hydraulic Insti-tute, who shall initiate the appeals process.RevisionsThe Standards of the Hydra
46、ulic Institute are subject to constant review, and revisions are undertaken whenever it isfound necessary because of new developments and progress in the art. If no revisions are made for five years, thestandards are reaffirmed with the ANSI Essential Requirements.Units of measurementMetric units of
47、 measurement are used, and corresponding US customary units appear in brackets. Charts, graphs,and sample calculations are also shown in both metric and US customary units. Since values given in metric unitsHydraulic Institute Standards, Copyright 1997-2014, All Rights Reservedviare not exact equiva
48、lents to values given in US customary units, it is important that the selected units of measure tobe applied be stated in reference to this standard. If no such statement is provided, metric units shall govern.ConsensusConsensus for this standard was achieved by use of the canvass method. The follow
49、ing organizations, recognizedas having interest in rotodynamic vertical pumps for nomenclature and definitions, were contacted prior to theapproval of this revision of the standard. Inclusion in this list does not necessarily imply that the organization con-curred with the submittal of the proposed standard to ANSI.A.W. Chesterton CompanyBechtel Power CorporationBlack directly to thebowl assembly, either above or below (i.e., pumps with submersible motors); or in a horiz
