1、6 Campus DriveFirst Floor NorthParsippany, New Jersey07054-4406 www.Pumps.org ANSI/HI1.11.2-2014ANSI/HI 1.11.2-2014American National Standard forRotodynamic Centrifugal Pumpsfor Nomenclature and DefinitionsThis page intentionally blank.Hydraulic Institute Standards, Copyright 1997-2014, All Rights R
2、eservedANSI/HI 1.11.2-2014American National Standard forRotodynamic Centrifugal Pumpsfor Nomenclature and DefinitionsSponsorHydraulic Institute www.Pumps.org Approved October 30, 2014American National Standards Institute, Inc.Hydraulic Institute Standards, Copyright 1997-2014, All Rights ReservedApp
3、roval 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 judgement of the ANSI Board of StandardsReview, substantial agreement has
4、 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 concerted effort be made toward their resolution.The use of American Nat
5、ional 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 not conforming to the standards.The American National Standards Instit
6、ute 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 the name of the American National Standards Institute. Requestsfor i
7、nterpretations 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whose nameappears on the title page of this standard.CAUTION NOTICE: This American National Standard may be revised or withdrawn atany time.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 American National Standards Institute require thataction be taken period
8、ically 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 Institute6 Campus Drive, First Floor NorthParsippany, NJ 07054-4406w
9、ww.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 in the United States of AmericaISBN 978-1-935762-19-5AmericanNationa
10、lStandardRecycledpaperHydraulic Institute Standards, Copyright 1997-2014, All Rights ReservediiiContentsPageForeword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viiPreface. . . . . . .
11、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Rotodynamic centrifugal pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.1 T
12、ypes and nomenclature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.1.1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.1.2 D
13、efinition of rotodynamic centrifugal pumps. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.1.3 Types of rotodynamic pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.1.4 Impeller designs . . . . .
14、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81.1.5 Construction drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111.1.6 General information . . . . . . .
15、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111.1.7 Centrifugal pumps nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 471.2 Definitions . . . . . . . . . . . . . . . . . . . .
16、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 651.2.1 Rate of flow Q . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 681.2.2 Speed (n) . . . . . . . . . . . . . . . . . . .
17、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 681.2.3 Head (h) H . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 681.2.4 Condition points . . . . . . . . . . . . . . .
18、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 701.2.5 Suction conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 711.2.6 Power . . . . . . . . . . . . . . . . . . . . . .
19、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 721.2.7 Pump pressures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 721.2.8 Impeller balancing. . . . . . . . . . . . . . .
20、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 731.2.9 Rotodynamic pump icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73Appendix A References . . . . . . . . . . . . . . . . . . . . . .
21、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83Appendix B Standard dimension for HI NEMA type C face-mounted motors . . . . . . . . . . . . . . . . . . . . . . . . 84Appendix C Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91Figures1.1.3a Rotodynamic pump types - overhung impeller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21.1.3b Rotodynamic pump types - between bearings . . . . . . . . . . . . . . . .
23、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31.1.3c Rotodynamic pump types - vertically suspended . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.1.3d Rotodynamic pump types - regenerative turbine . . . . . . . . . . . . . . . . . . . . . . . .
24、. . . . . . . . . . . . . . . . . . . 41.1.3e Rotodynamic pump types - circulator pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51.1.4.1 General impeller types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
25、. . . . . . . . . . . . . . . . . 101.1.4.2 Double suction radial flow impeller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101.1.4.3 Mixed flow impeller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
26、. . . . . . . . . . . . . . . . . . . . . 101.1.4.4 Axial flow impeller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111.1.5a Overhung impeller flexibly coupled frame mounted single stage . . . . . . . . . . . . . .
27、 . . . . . . . . . . . 121.1.5b Overhung impeller flexibly coupled horizontal frame mounted single stage lined pump. . . . . 131.1.5c Overhung impeller flexibly coupled horizontal foot mounted single stage stock pump . . . . . . 141.1.5d Overhung impeller flexibly coupled horizontal foot mounted sin
28、gle stage . . . . . . . . . . . . . . . . . 151.1.5e Overhung impeller flexibly coupled horizontal foot mounted single stage ASME B73.1 . . . . . 161.1.5f Overhung impeller flexibly coupled horizontal foot mounted self-priming single stage . . . . . . 171.1.5g Overhung impeller flexibly coupled hori
29、zontal centerline mounted single stage API 610 . . . . 18Hydraulic Institute Standards, Copyright 1997-2014, All Rights Reservediv1.1.5h Overhung impeller flexibly coupled vertical in-line integral bearing frame single stage . . . . . 191.1.5i Overhung impeller flexibly coupled vertical end suction
30、single stage OH3A . . . . . . . . . . . . . . 201.1.5j Overhung impeller rigidly coupled vertical in-line single stage . . . . . . . . . . . . . . . . . . . . . . . . . . 211.1.5k Overhung impeller close coupled vertical in-line single stage (showing seal and packing) . . . . 221.1.5l Overhung impel
31、ler close coupled vertical end suction single stage vertically mounted OH5A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231.1.5m Overhung impeller close coupled high-speed integral gear single stage .
32、. . . . . . . . . . . . . . . . . . 241.1.5n Overhung impeller close coupled horizontal single stage end suction. . . . . . . . . . . . . . . . . . . . 251.1.5o Overhung impeller close coupled submersible diffuser single stage end suction . . . . . . . . . . 261.1.5p Overhung impeller close coupled
33、submersible volute single stage end suction . . . . . . . . . . . 271.1.5q Overhung impeller flexibly coupled horizontal axial flow single stage . . . . . . . . . . . . . . . . . . . . 281.1.5r Between bearings single stage axially split pump. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
34、. . . . . . . . . . 291.1.5s Between bearings single stage radially split pump. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301.1.5t Between bearings multistage axially split pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311.1.5u B
35、etween bearings multistage radially split single casing pump. . . . . . . . . . . . . . . . . . . . . . . . . . .321.1.5v Between bearings multistage radially split double casing pump . . . . . . . . . . . . . . . . . . . . . . . . . .331.1.5w Regenerative turbine overhung side channel . . . . . . .
36、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341.1.5x Regenerative turbine overhung peripheral . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 351.1.5y Regenerative turbine between bearings peripheral . . . . . . . . . . . . . . .
37、 . . . . . . . . . . . . . . . . . . . . . . 361.1.5z Pitot tube pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 371.1.5aa Close-coupled sealless with canned motor . . . . . . . . . . . . . . . . . . . . . . .
38、 . . . . . . . . . . . . . . . . . . . . . . 381.1.5bb Close-coupled horizontal in-line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 391.1.5cc Flexibly coupled horizontal in-line. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
39、 . . . . . . . . . . . . . . . . . . . . . . . 401.1.6.5.1.1 Liquid end (or wet end) assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 411.1.6.5.1.2 Power end (or frame assembly) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
40、. . . . . . . . . . . . . . . . . . . . 421.1.6.5.1.3 Back pull-out assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 431.1.6.6 Position of casing and shaft rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
41、 . . . . . . . . . . . . . . . . . . . . . 441.1.6.7a Horizontal pump shaft rotation (CW rotation) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 451.1.6.7b Vertical pump shaft rotation (CW rotation) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
42、 . . . . . . . . . . . . 451.1.6.8 Pump with C-frame motor adapter, short coupled. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 461.1.7.2a Overhung impeller flexibly coupled single stage frame mounted . . . . . . . . . . . . . . . . . . . . . . . . 591.1.7.2b Overh
43、ung impeller flexibly coupled single stage frame mounted pump on baseplate. . . . . . . 591.1.7.2c Overhung impeller flexibly coupled single stage centerline mounted. . . . . . . . . . . . . . . . . . . . . 601.1.7.2d Overhung impeller flexibly coupled single stage centerline mounted pump on basepla
44、te . . . 601.1.7.2e Overhung impeller flexibly coupled single stage centerline mounted (top suction) . . . . . . . . . . 611.1.7.2f Overhung impeller flexibly coupled single stage centerline mounted pump on baseplate (top suction) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
45、 . . . . . . . . . . . . . . . . . . . . . . . 611.1.7.2g Impeller between bearings flexibly coupled single stage axial (horizontal) split case pump on baseplate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 621.1.7.2h Impel
46、ler between bearings flexibly coupled single stage axial (horizontal) split case . . . . . . . . 621.1.7.2i Overhung impeller close coupled single stage end suction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 631.1.7.2j Overhung impeller flexibly coupled vertical end suction single stag
47、e separate driver support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 631.1.7.2k Overhung impeller flexibly coupled vertical end suction single stage integral driver support . . . . . . . . . . . . . . . . . . . . . . . . . . .
48、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 641.1.7.2l Overhung impeller close coupled single stage vertical end suction . . . . . . . . . . . . . . . . . . . . . . 641.2.3.4 Datum elevation for various pump designs at eye of first-stage impeller . . . . . . . . . . . . . . . . . . . . . . . 691.2.9.1.1 Pump type OH00: Horizontal, flexibly coupled, axial flow, single stage, overhung design . . . . . . . . 74Hydraulic Institute Standards, Copyright 1997-2014,
