ansi_hi 9.6.2-2001 centrifugal and vertical pumps for allowable nozzle loads.pdf

ANSJI /-!1 9.6.2-2001

Am,erican National Standard for Centrifugal and Vertical Pumps for Allowable Nozzle Loads

9 Sylvan Way Parsippany, New Jersey 07054-3802 www.pumps.org

This page tnlentionally blank.

Sponsor Hydraulic Institute www.pumps.org

Approved December 12, 2000

ANSI/HI 9.6.2-2001

American National Standard for

Centrifugal and Vertical Pumps for Allowable Nozzle Loads

American National Standards Institute, Inc.

(\ Recycled 1(1 paper

American National Standard

Published By

Approval of an American National Standard requires verification by ANSI that the requirements tor due process. consensus and other criteria for approval have been met by the standards developer.

Consensus is established when, in the judgement of the ANSI Board of Standards Review, substantial agreement has been reached by directly and materially affected interests. 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 National Standards is completely voluntary; their existence does not 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 startJdards.

The American National Standards Institute does not develop standards and will in no circumstances give an interpretation of any American National Standard. Moreover, no person shall have the right or authority to issue an interpretation of an American National Standard in the name of the American National Standards Institute. Requests for inte rpretations should be addressed to the secretariat or sponsor whose name appears on the title page of this standard.

CAUTION NOTICE: This American National Standard may be revised or withdrawn at any time. The procedures of the American National Standards Institute require that action be taken periodically to reaffirm, revise, or withdraw this standard. Purchasers of American National Standards may receive current information on all standards by call-ing or writing the American National Standards Institute.

Hydraulic Institute 9 Sylvan Way, Parsippany, NJ 07054-3802 www .pumps.org

Copyright 2001 Hydraulic Institute All 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 America

ISBN 1-880952-44-0

Contents Page

Foreword . ...... ......... . ..... . . . . .. ... ............ . . .. . ... vii 9.6.2 9.6.2.0 9.6.2. 1 9.6.2.1.1 9.6.2.1.2

Centrifugal and vertical pumps for allowable nozzle loads ... . ... . . Scope ...... . ... . . ... .. .. . .. ... . ..... . ... . ... .... ... . Horizontal end suction pumps . . . . . ... ...... .. . .... . . .. . . . Scope . .. . ... . . . ..... . . .. .. . . ... . .... .... . . ... .. . . . . . Nomenclature and Definitions . .. .. .. . ..... .... ........ . . .

9.6.2.1 .2.1 Source ... . ... . ...... . ..... ......... .. . ... . . ... . . .... 1 9.6.2.1.2.2 Additional terms (refer to Figure 9.6.2.1.1) .. . ..... ... . .... . . . 1 9.6.2.1.3 Criteria for loading allowances . . . . ... .. ....... . . . . ....... . 2 9.6.2.1.3.1 Driver I pump coupling alignment. . .. .. .. . .... ... ... ... ... . 2 9.6.2.1.3.2 Internal pump distortion .. . . . . . ... ....... . . ... ..... . .... . 2 9.6.2.1.3.3 Pump hold down bolts . ... . . . . . .... .. . . . .. . . . .......... . 2 9.6.2.1.3.4 Pump mounting ... .... . .. . . . .. .. . .. . ... .. ........ . . . .. 2 9.6.2.1.3.5 Nozzle stress . . . .... .. .. . . . ..... . . . . . .. ..... . .... . .. .. 2 9.6.2 .1.3.6 Pressure-temperature .. ..... . . . . .............. . . . . . .. . .. 2 9.6.2.1.4 ANSI/ASME 873.1 M pump nozzle loads .. .. ..... ...... . . . . . 3 9 .6.2.1.5 ANSI/ASME 873.3M sealless pump nozzle loads . . . . . . . .. . ... 3 9 .6.2.1 .6 ANSI/ASME 873.5M composite pump nozzle loads .. .. . . . . .. . 3 9 .6.2.1. 7 Nozzle load adjustment factors ... .. . ........ . .. ... .. . . . . . 3 9 .6.2.1.7.1 Alternate pump mounting .. . .. . . ............ ... . ... . . . . .. 3 9.6.2 .1.7.2 Temperature and material adjustment factors for

ASME 873.1 M and ASME 873.3M pumps ...... . .. ... . . .... . 4 9.6.2.2 Vertical-in-line pumps .. . . . . . . . .... ... . ...... . . ..... .... 10 9.6.2.2.1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 9.6.2.2.2 Nomenclature and definitions .... . . . . . . . .. . ... ... . . .. .. . . 10 9.6.2 .2.2.1 Source .. . ...... . . . ... .. ..... . .. . ... .. .. . . .. . . ...... 10 9.6.2 .2.2.2 Additional terms (refer to Figure 9.6.2.2.1) ........ . . . ... .. . . 10 9.6.2.2.3 Criteria for loading allowances .. . .. . . ... ... . .... . ........ 10 9.6.2.2.3.1 Flange stress ....... . .. . .. .. .. .. . ... ...... . . . . . .. . ... 1 o 9.6.2.2.3.2 Pressure-temperature . ... .. .. . .. . . .. .. ... ... .. .. . . .. .. . 10 9.6.2.2.4 ANSI/ASME 873.2M pump nozzle loads ... ... ..... ... ... .. 11 9.6.2.2.5 Temperature and material adjustment factors .... . . .. . . .. . . . 11 9.6.2.2.5.1 Adjustment factor basis ...... .. ... . ... ... .. ... ..... .. . . 11 9.6.2.2.5.2 Adjustment factors . .. ... .. .. .. .. .... . ... ... ... . . .... . . 11 9.6.2.3 Nozzle loads on axial split case pumps (single-stage

double suction and two-stage single suction). . . . . . . . . . . . . . . . 15

9.6.2.3.1

Q.6.2.3.2 9.6.2.3.3 9.6.2.3.4 9.6.2.3.5 9.6.2.4 9.6.2.5 9.6.2.5.1 9.6.2.5.2 9.6.2.5.3

Scope . ....... .. . . . .. . . . . . ... .. . ...... .. . ...... . ... . . 15 Description .... . . . . .. ...... . ... . . ...... . ..... . . . . . .. .. 15 Driver and pump .... ..... . .. . ... . . . . . . .. . ....... . . . . .. . 15 Limiting factors .. .. ..... ... . . . . . . .. .. . ..... . . .. . .. . ... . 15 Casing hold-down bolts .. . . ...... .. . ... ...... .. .. . . .. .. . 15 End suction slurry pumps. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Vertical turbine short set pumps . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Scope . ..... . . . .. . . . . . . .. . ... ... ... .... .. . ..... . . . ... 17 Definitions .. . . .... . . ... . . ... ..... . ... . . ... . .... . . . . . . . 17 Methodology ..... .. .. .. . . . .. ... .. . .. . .... . ... .. . ... . .. 17

Appendix A Loading Examples ASM E 873.1 M Pumps. . . . . . . . . . . . . . . . . . 22

Appendix 8 Loading Examples ASME 873.2M Pumps .. . ....... ..... . .. 30

Appendix C Loading Examples Vertical Turbine Pumps ....... .......... 32

Appendix D References ..... .. . . . . ... . ........ . .... . ..... ...... . 33

Appendix E Index ......... .. .. . . . . ..... ... . ........ . . ... . . . .... 34

Figures 9.6.2.1 .1 - Coordinate system for ASME 873.1 M horizontal end suction pumps. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 9.6.2.2.1 -Coordinate system for ASME 873.2M vertical in-line pumps .. .. 10 9.6.2.3.1 - Coordinate system for axial split case pumps . . ... . . . ... . .... 16 9.6.2.5.1 -Nozzle loads for above pump base (floor) discharge pumps .. . . 18 9.6.2.5.2 - Nozzle loads for below pump base (floor) discharge pumps ..... 19

Tables 9.6.2.1.1 Allowable individual nozzle loads. Hori~ontal end suction pumps in accordance with ASME 873.1M .. . . ... .. .. . ....... . . ......... 5 9.6.2.1 .2 Allowable combination nozzle loads for nozzle stress, hold-down bolt stress and pump slippage on baseplate. Horizontal end suction pumps in accordance with ASME 873.1 M . ........ . . ......... . . . 6 9.6.2.1.3 Allowable combination nozzle loads for y-axis movement. Horizontal end suction pumps in accordance with ASME 873.1 M . . : . ... .. .. 7 9.6.2.1.4 Allowable combination nOxzle loads for z-axis movement. Horizontal end suction pumps in accordance with ASME 873.1 M ....... .... 7 9.6.2.1 .5 List of material specifications as used in Table 9.6.2.1.6 . ... . ... . 8 9.6.2.1.6 ASME 873.1 M metallic pump temperature and material adjustment values to be used on Table 9.6.2.1.2 values. Use for both Class 150 and Class 300 flanges . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . 9

iv

9.6.2.2.1 Allowable nozzle loads (both suction and discharge nozzles). Vertical in-line pumps in accordance with ASME B73.2M .. ........ . .. . . . . 12 9.6.2.2.2 List of material specifications as used in Table 9.6.2.2.3 .. . .. . .. 13 9.6.2.2.3 ASME B73.2M metallic pump temperature and material adjustment values to be used on Table 9.6.2.2.1 values. Use for both Class 150 and Class 300 flanges . . .... .. .. .. . . .... . . ........... . .. .. 14 9.6.2.3.1 Maximum allowable loads based on hold down bolts . .. . . .. . . .. 16 9.6.2.3.2 Maximum allowable nozzle loads based on nozzle stress . . . . ... 16

This page mtentionally blank.

Foreword (Not part of Standard)

Purpose and aims of the Hydraulic Institute The purpose and aims of the Institute are to promote the continued growth and well-being of pump manufacturers and further the interests of the public in such matters as are involved in manufactunng, engmeering, distribution, safety, trans-portation and other problems of the industry, and to this end, among other thmgs: 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 matters affecting the industry; d) To increase the amount and to improve the quality of pump seNice to the public; e) To support educational and research activities; f) To promote the business interests of its members but not to engage tn busi-

ness of the kind ordinarily carried on for profit or to perform particular services for its members or individual persons as d1stmguished from activities to improve the business conditions and lawful interests of all of its members.

Purpose of Standards 1) Hydraulic Institute Standards are adopted in the public interest and are

designed to help eliminate misunderstandings between the manufacturer, the purchaser and/or the user and to assist the purchaser in selecting and obtaining the proper product for a particular need.

2} Use of Hydraulic Institute Standards is completely voluntary. Existence of Hydraulic Institute Standards does not in any respect preclude a member from manufacturing or selling products not conforming to the Standards.

Definition of a Standard of the Hydraulic Institute Quoting from Article XV, Standards, of the By-Laws of the Institute, Section B: "An Institute Standard defines the product, material, process or procedure with reference to one or more of the following: nomenclature, composition, construc-tion, dimensions, tolerances, safety, operating characteristics, performance, qual-ity, rating, testing and service for which des1gned."

Comments from users Comments from users of this Standard will be appreciated, to help the Hydraulic Institute prepare even more useful future edttions. Questions arising from the con-tent of this Standard may be directed to the Hydraulic Institute. It will direct all such questions to the appropriate technical comm1ttee for provision of a suitable answer.

If a dispute arises regarding contents of an Institute publication or an answer pro-vided by the Institute to a question such as indicated above, the point in question shall be referred to the Executive Committee of the Hydraulic Institute, which then shall act as a Board of Appeals.

vii

Revis io ns

The Standards of the Hydraulic Institute are subject to constant review, and revr-sions are undertaken wheneyer it is found necessary because of new develop-ments and progress in the art. If no revisions are made for five years, the standards are reaffirmed using the ANSI canvass procedure.

Units of Measurement

US Customary units of measurement are predominantly used. Due to the refer-ence to ANSI/ASME 873 standards for pump dimensions conversion to Metric units was inappropriate.

Consensus for this standard was achieved by use of the Canvass Method

The following organizations, recognized as having an 1interest in the standardiza-tion of centrifugal pumps were contacted prior to the approval of this revision of the standard. Inclusion in this list does not necessarily imply that the organization concurred with the submittal of the proposed standard to ANSI.

A.R. Wilfley & Sons, Inc. Afton Pumps, Inc. ANSIMAG Incorporated Bechtel Corporation Black & Veatch LLP Brown & Caldwell Camp Dresser & McKee, Inc. Carver Pump Company Cascade Pump Co Chas. S. Lewis & Company, Inc. Chempump Division, Crane Pumps &

Systems Cheng Fluid Sytems, Inc. Cuma S.A. Dean Pump Division, Metpro Corp. DeWante & Stowell Dow Chemical EnviroTech Pumpsystems Equistar LP Essco Pumps Exeter Energy Limited Partnership Fairbanks Morse Pump Corp. Ferris State University Construction &

Facilities Dept. Flow Products. Inc. Floway Pumps Flowserve Corporation Fluid Sealing Association Franklin Electric Grundfos Pumps Corporation Illinois Department of Transportation Ingersoll-Dresser Pump Company ITT Fluid Technology

viii

ITT Industrial Pump Group lwaki Walchem Corporation J.P. Messina Pump and Hydr. Cons. John Crane, Inc. Krebs Consulting Service KSB, Inc. Lawrence Pumps, Inc. M.W. Kellogg Company Malcolm Pirnie, Inc. Marine Machinery Association Marley Pump "Red Jacket'' Marshall Eng. Prod. Co. (MEPCO) Mechtronix Engineering Moving Water Industries (MWI} Ortev Enterprises Inc. Pacer Pumps Patterson Pump Company Pinellas County, Gen. Serv. Dept. Price Pump Company Raytheon Engineers & Constructors Reddy-Buffaloes Pump, Inc. Scott Process Equipment Corp. Skidmore South Florida Water Mgmt. Dist. Sta-Rite Industries, Inc. Sterling Fluid Systems (Canada) Inc. Stettler Supply Company Stone & Webster Eng. Corp. Sulzer Pumps (USA) Inc. Summers Engineering, Inc. Sundyne Corporation Systecon, Inc. Taco, Inc.

The Process Group, LLC University of Montana Vai-Matic Valve & Manufacturing Corp.

Yeomans Chicago Corporation Zoeller Engineered Products

Although this standard was processed and approved for submittal to ANSI by the Canvass Method, a working committee met many times to facilitate the develop-ment of this standard. At the time it was developed, the committee had the follow-ing members: Chairman - Frederic W. Buse, Flowserve Corporation

Vice Chairman - William A_ Beekman, Floway Pumps

Other Members Allan R. Budris, Goulds Industrial

Pumps, ITT Industries Barry Erickson, Goulds Industrial

Pumps, ITT Industries AI lseppon, Sta-Rite Industries, Inc. William J. Mabe, Sundyne Corporation Patrick A Moyer, Goulds Water

Technology, ITT Industries Robert W. Piazza, Price Pump

Company YJ. Reddy, Reddy-Buffaloes Pump,

Inc. Donald B. Spencer, Sulzer Pumps

(USA) Inc. RogerS. Turley, Flowserve

Corporation Brett T. Zerba, Taco, Inc.

Alternates Raymond Schussler, Goulds Industrial

Pumps, ITT Industries Frank Stauble, Flowserve Corporation

ix

This page intentionally blank.

HI Centrifugal a111d Vertical Pumps for Allowable Nozzle Loads - 2001

9.6.2 Centrifugal and vertical pumps for allowable nozzle loads

9.6.2.0 Scope

This standard includes recommendations for allowable nozzle loads for the following pump types. When spec-ified by the user, pumps supplied shall conform to these requ irements.

a) Horizontal end suction single stage (ANSI/ASME 873.1 M, 873.3M, and B73.5M)

b) Vertical-in-line single stage (ANSI/ASME 873.2M)

c) Axial split case single and two stage

d) End suction slurry pumps

e) Vertical turbine short set pumps

Many other pump types are not included because of the different designs that are unique to each manufacturer.

9.6.2.1 Horizontal end suction pumps

9.6.2.1.1 Scope

This section covers allowable nozzle loads for the fol-lowing horizontal end suction pump types:

a) Pumps designed and constructed in accordance with ASME 873.1 M, Specification for Horizontal End Suction Centrifugal Pumps tor Chemical Pro-cess, with Class 150 and 300 flanges. To be applicable, the pump casing and seal chamber or stuffing box must be constructed of a material listed in Table 9.6.2.1.5 and subjected to tempera-tures between -20F and 700F unless otherwise specified.

b) Magnetic drive pumps designed and constructed in accordance with ASME B73.3M, Specification for Sea/less Horizontal End Suction Centrifugal

. Pumps for Chemical Process, with Class 150 and 300 flanges. To be applicable, the pump casing must be constructed of a material listed in Table 9.6.2.1.5 and subjected to temperatures between -20F and 500F unless otherwise specified.

c) Pumps designed and constructed in accordance with ASME 873.5M, Specification tor Thermoplas-tic and Thermoset Polymer Material Horizontal End Suction Centrifugal Pumps for Chemical Pro-cess. To be applicable, the pump must be

constructed or a material with a 68F modulus of elasticity greater than 1.0 x 1 06 psi and may be subjected to temperatures between -20F and 200F.

9.6.2.1.2 Nomenclature and Definitions

9.6.2.1.2.1 Source

The nomenclature and definitions of pump compo-nents shall be in accordance with those promulgated by the Hydraulic Institute.

9.6.2.1.2.2 Additional terms (refer to Figure 9.6.2.1.1)

Fxs = Fys = Fzs = Mxs =

Mys =

Mzs

Fxd Fyd Fzd Mxd

Myd

Mzd

Fxs max = Fys max = Fzs max = Mxsmax =

Mys max =

Mzs max =

F xd !}lax =

Fyd max =

Fzd max

Mxd max =

Mydmax =

Mzd max =

applied force on x-axis on suction nozzle applied force on y-axis on suction nozzle applied force on z-axis on suction nozzle applied moment about x-axis on suction nozzle applied moment about y-axis on suction nozzle applied moment about z-axis on suction nozzle applied force on x-axis on discharge nozzle applied force on y-axis on discharge nozzle applied force on z-axis on discharge nozzle applied moment about x-axis on discharge nozzle applied moment about y-axis on discharge nozzle applied moment about z-axis on discharge nozzle allowable force on x-axis on suction nozzle allowable force on y-axis on suction nozzle allowable force on z-axis on suction nozzle allowable moment about x-axis on suction nozzle allowable moment about y-axis on suction nozzle allowable moment about z-axis on suction nozzle allowable force on x-axis on discharge nozzle allowable force on y-axis on discharge nozzle allowable force on z-axis on discharge nozzle allowable moment about x-axis on dis-charge nozzle allowable moment about y-axis on dis-charge nozzle allowable moment about z-axis on dis-charge nozzle

HI Centrifugal and Vertical Pumps for Allowable Nozzle Loads- 2001

9.6.2. 1.3 Criteria for loading allowances 9.6.2.1.3.1 . Driver I pump coupling alignment

The allowable radial movement of the pump shaft at the pump coupling hub due to nozzle loads shall not exceed 0.005 inch parallel relative to initial alignment. Axial movement of ~he pump shaft at the pump cou-pling hub is not considered.

9.6.2.1.3.2 Internal pump distortion

No contact between moving and stationary parts is allowed (i.e., casing and impeller) .

The allowable radial movement of the pump shaft with respect to the seal chamber due to nozzle loads shall not exceed 0.001 inch relative to initial position.

9.6.2.1.3.3 Pump hold down bolts

The maximum allowable tensile stress allowed in the pump hold-down bolts is 90% of ASTM A 307 Grade A fastener material yield strength. The maximum allow-able shear stress allowed in the pump hold-down bolts is 25% of ASTM A 307 Grade A fastener material yield strength.

Fasteners used for hold-down bolts must have a yield strength greater than or equal to ASTM A 307 Grade A fastener yield strength.

The pump shall be bolted to the baseplate at both the casing feet and rear foot position(s) and sufficiently tightened to prevent slippage of the pump on the

2

Figure 9.6.2.1.1 -Coordinate system for ASME 873.1 M horizontal end suction pumps

baseplate. RG!fer to API 686, Appendix E. for required torque values (use %inch nominal bolt diameter torque value for Group 1 and 2 pumps and ~inch nominal bolt diameter value for Group 3 pumps). It may be nec-essary to arrange for periodic tightening of the bolts to maintain required torque levels.

9.6.2.1.3.4 Pump mounting

The base for which the loads in Tables 9.6.2.1.1 through 9.6.2.1.4 are established must be a fully grouted metal baseplate with anchor bolts. The base as a minimum must withstand the applied nozzle loads combined with normal operating loads (i.e., driver weight and pump weight).

The base must be installed and grouted in accordance with ANSI/HI 1.4-2000, Centrifugal Pumps for Installa-tion, Operation and Maintenance.

9.6.2.1.3.5 Nozzle stress

The maximum stresses developed in the pump noz-zles and flanges by the applied nozzle loads combined with internal pressure will not exceed 26,250 psi ten-sile and 13,125 psi shear. This is in accordance with the allowable stress for ASTM A351 (A 744/743) -Grade CF8M per ASME Boiler and Pressure Vessel Code.

The suction nozzle stress is calculated using three dimensional stress analysis methods. The discharge nozzle stress is calculated based on the method con-tained in the ASME Boiler and Pressure Vessel Code, 1983 Edition, Section Ill, NC 3653, due to its complex geometry.

9.6.2.1.3.6 Pressure-temperature

The temperature shown for a corresponding allow-able nozzle load is the temperature of the pressure-containing components of the pump. In general, this temperature is the same as that of the contained liquid.

Use of a pressure rating as specified in ANSI/ASME B16.5 corresponding to a temperature other than that of the contained liquid is the responsibility of the user, subject to the requirements of the applicable code or regulation.

Low-temperature and high-temperature considerations addressed in ANSIIASME B16.5 should be examined.

HI Centrifugal and Vertical Pumps for Allowable Nozzle Loads - 2001

9 .6.2.1.4 ANSI/ASME 873.1M pump nozzle loads

Loads given in Tables 9.6.2.1.1 through 9.6.2.1.4 are applicable for ASME 873.1 M pumps constructed of ASTM A 7 43/744 - Grade CF8M (Type 316SS) oper-ated between - 20F and 1 oooF and mounted on a grouted metal baseplate with anchor bolts.

For an individual force or moment, pumps must be capable of satisfactory operation when subjected to loads shown in Table 9.6.2.1 .1 (adjusted if applicable) while meeting the criteria of Equation Set 1. Each load in Table 9.6.2.1.1 is such that it is the maximum ind i-vidual load for that particular load without any other loads applied.

For a combination of more than one force and/or moment, pumps must be capable of satisfactory oper-ation when subjected to the loads in Tables 9.6.2.1.2 through 9.6.2.1.4 (adjusted if applicable) while meet-ing the criteria of Equation Sets 2-5. When combining loads, the absolute value of any individual load must not exceed the value given in Table 9.6.2.1.1.

Adjustment of allowable load values is required if any of the following occur:

a) Temperature is above 1 oooF

b) The pump material construction is not ASTM A 744- Grade CF8M

c) The base is not a fully grouted metal baseplate with anchor bolts

Refer to Section 9.6.2.1.7 for allowable load adjust-ment factors.

9.6.2.1.5 ANSI/ASME 873.3M sealless pump nozzle loads

Allowable loads and adjustment of allowable loads for pumps built to ASME 873.3M, Specification for Seall-ess Horizontal End Suction Centrifugal Pumps for Chemical Process is identical to ASME . 873.1 M pumps. Refer to Section 9.6.2.1.4.

9.6.2.1.6 ANSI/ASME B73.5M composite pump nozzle loads

By reducing the values in Tables 9.6.2.1.1 through 9 .6.2.1 .4 to 90% of their original values, the values are applicable for ASME B73.5M pumps mounted on a grouted metal baseplate with anchor bolts. Use Equa-tion Sets 1-5 with these adjusted values.

If mounting the pump on a base other than a fully grouted metal baseplate with anchor bolts , refer to Section 9.6.2.1. 7 for allowable load adjustment factor.

9.6.2.1.7 Nozzle load adjustment factors

The loads in the tables must be multiplied by adjust-ment factors when applicable. The lowest correction factor should be applied when more than one adjust-ment factor is involved. For instance, if the pump is an ASME B73.5M pump (90% reduction factor) mounted on a fully grouted non-metallic baseplate (80% reduc-tion factor) , then the reduction factor for Tables 9.6.2.1.1 through 9.6.2.1 .4 would 80%.

There may be cases where one adjustment factor is applied to Table 9.6.2.1.2 and another adjustment fac-tor is applied to Tables 9.6.2.1.3 and 9.6.2.1.4. These cases are denoted in the text.

Refer to Appendix A for further discussion of nozzle load reduction factors.

9.6.2.1.7.1 Alternate pump mounting

For alternate mounting conditions, the pump must be mounted on a base that can, as a minimum, withstand the applied nozzle loads combined with normal operat-ing loads.

9.6.2.1.7.1.1 Stilt-mounted metal baseplate

Use 100% of the values in Table 9.6.2.1.2 and 90% of the values in Tables 9.6.2.1 .3 and 9.6.2.1.4. If after adjusting the value for a particular load in Tables 9 .6.2.1.3 and 9.6.2.1.4., the absolute value of any adjusted value is lower than the corresponding load in Table 9.6.2.1.1 , substitute the lower value into Table 9.6.2.1.1. All of the values in Tables 9.6.2.1.1 through 9.6.2.1.4 may be used if it can be demonstrated that the baseplate design meets the deflection criteria con-tained in ANSI/HI 1.3-2000, Centrifugal Pumps for Design and Application.

Warning: Forces and moments must be limited to values lower than that which will initiate overturning or lifting of the pump, base, and driver assembly.

9.6.2.1.7.1.2 Ungrouted metal baseplate that is anchored down

Use 100% of the values in Table 9.6.2.1.2 and 80% of the values in Tables 9.6.2.1.3 and 9.6.2.1.4. If after adjusting the value for a particular load in Tables 9.6.2.1 .3 or 9.6.2.1.4, the absolute value of any

3


adjusted value is lower than the corresponding load in Table 9.6.2.1.1, substitute the lower value into Table 9.6.2. 1.1 .

9.6.2.1.7.1.3 Grouted nonmetal baseplate with anchor bolts

Use 80% of the values in Tables 9.6.2.1 .1 through 9.6.2.1.4. All of th'e values in Tables 9.6.2.1.1 through 9.6.2.1.4 may be used if it can be demonstrated that the baseplate design meets the deflection criteria con-tained in ANSI/HI 1.3-2000, Centrifugal Pumps for Design and Application.

9.6.2.1.7.1.4 Ungrouted nonmetal baseplate that is anchored down

Use 70% of the values in Tables 9.6.2.1.1 through 9.6.2.1.4. All of the values in Tables 9.6.2.1.1 through 9.6.2.1.4 may be used if it can be demonstrated that the baseplate design meets the deflection criteria con-tained in ANSI/HI 1.3-2000, Centrifugal Pumps for Design and Application.

9.6.2.1.7.1.5 Spring-mounted metal baseplate

This standard is not applicable to spring-mounted metal baseplates. Refer to the pump manufacturer for allowable loads.

9.6.2.1.7.2 Temperature and material adjustment factors for ASME 873.1M and ASME 873.3M pumps

Set Equation

9.6.2.1.7.'J.1 Adjustment factor basis Adjustment factors are determined by taking the ANSI/ ASME 816.5 Class 300 pressure-temperature rating of the flange material being used and dividing by the pressure-temperature rating of ASTM A 351 - Grade CF8M Class 300 at 100F as specified in ANSI/ASME 816.5.

In the case of ductile cast iron, adjustment factors were determined by taking the ANSIIASME 816.42 Class 300 pressure-temperature ratings and dividing by the pressure-temperature rating of ASTM A 351 -Grade CF8M Class 300 at 1 00F as specified in ANSI/ ASME 816.5.

9.6.2.1.7.2.2 Adjustment factors

For temperatures above 1 oooF and/or the use of a material other than ASTM A 744 - Grade CF8M, the loads in Table 9.6.2.1.2 should be reduced by multiply-ing them by the proper adjustment factor from Table 9.6.2.1.6.

For intermediate temperatures not shown in Table 9.6.2.1.6, linear interpolation is permitted.

If after adjusting the value for a particular load in Table 9.6.2.1.2, any adjusted value is lower than the corre-sponding load in Table 9.6.2.1.1, substitute the lower value into Table 9.6.2.1 .1 .

Ref Remarks

1 1~1~1.0, 1~1~1.0, I~I S1.0, 1~1S 1 .0, 1~1~1.0, 1~1~10, Table Individual 9.6.2.1.1 loading Fxs max F ys max F zs max M xs max M ys max M zs max 9.6.2.2.1

~~~~1.0 , ~~~~1 .0, ~~~ s 1 .o, ~~~s1.o, ~~~ s1.0, F xd max F yd max F zd max M xd max M yd max

~~~s 1 .0, Mzd max

2 9.6.2.1.2 Nozzle stress, I F xs I I F ys I I F zs I I M xs I I M ys I I M zs I holddown bolt ~ X F xs max + F ys max + F zs max + M xs max + M ys max + M zs max + ::; 1.0 stress, pumps 2 I F xd I I F yd I I F zd I I M xd I I M yd I I M zd I slippage

F xd max + F yd max + F zd max + M xd max + M yd max + M zd max

3 F M M M F M M M 9.6.2.1.3 y-axis - 1.0::; a = ~ + __ xs_ + __ ys_ + __ zs_ + ~ + __ xc:_ + ____x_g_ + __ zd_ ::; 1.0

movement F ys max M xs max M ys max M zs max F yd max M xd max M yd max M zd max

4 F F M M M 9.6.2.1.4 z-axis _ 1.0::; b = _x_s_ + __ zs_ + __ xs_ + _ _ ys_ + _ _ zs_ + movement

F xs max F zs max M xs max M ys max M zs max

Fxd Fyd Fzd Mxd Myd Mzd --+--+--+--+---+--$ 1.0 F xd max F yd max F zd max M xd max M yd max M zd max

5 J a2 + b2 s 1.0 - Combined axis movement

4


Table 9.6.2.1.1 Allowable individual nozzle1oads. Horizontal end suction pumps in accordance with ASME 873.1 M

Suction Discharge

Forces (lb) Moments (ft-lb) Forces (lb) Moments (ft-lb) ASME B73 Pump Fxs Fys Fzs Mxs Mys Mzs Fxd Fyct Fzd Mxd Myct Mzd Designation Size max max max max max max max max max max max max

AA 1.5 X 1 X 6 1050 750 750 720 170 170 800 1350 3000 410 410 410

AB 3 X 1.5 X 6 1050 1240 1250 900 490 490 800 1350 3000 500 550 510

A10 3x2x6 1050 1050 1050 900 220 220 800 1350 3000 500 1000 510

AA 1.5 X 1 X 8 1050 1210 1210 720 190 190 800 1350 3000 360 360 360

---3 X 1.5 X 8a 1050 1240 1250 900 490 490 800 1350 3000 440 440 440

A 50 3 X 1.5 X 8 2700 1350 1500 1300 370 370 1400 1350 3250 460 460 460

A60 3x2x8 2700 1350 1500 1300 600 600 1400 1350 3250 660 660 660 A70 4x3x8 2700 1350 1500 1300 350 350 1400 1350 3250 1200 1460 690

A05 2 X 1 X 10 2340 960 960 1270 220 220 1400 1350 3250 660 660 660 A 50 3x 1.5x10 2700 1350 1500 1300 420 420 1400 1350 3250 370 370 370

A60 3 X 2 X 10 2700 1350 1480 1300 310 310 1400 1350 3250 560 560 560 A70 4 x 3x10 2300 1350 1500 1300 310 310 1400 1350 3250 1200 1460 690 A80 6 X 4 X 10 2700 1350 1500 1300 1100 1100 1400 1350 3250 . 1200 1500 690

A20 3 X 1.5 X 13 2700 1350 1500 1300 670 670 1400 1350 3250 530 I 530 530 A30 3 X 2 X 13 1920 1230 1230 1300 350 350 1400 1350 3250 1200 1270 690 A40 4 X 3 X 13 2700 1350 1500 1300 400 400 1400 1350 3250 1200 1500 690

A80 6 X 4 X 13 2700 1350 1500 1300 1300 1100 1400 1350 3250 1200 1500 690 A90 8 X 6 X 13 3500 3180 2000 1500 1170 1170 1500 3000 3500 1250 2840 2840

A100 10x8x13 3500 3180 2000 1500 2000 2150 1500 3000 3500 1250 2840 2840

A110 8 X 6 X 15 3500 3180 2000 1500 1480 1480 1500 3000 3500 1250 2840 2840

A120 10x8x15 3500 3180 2000 1500 1130 1130 1500 3000 3500 1250 2840 2840 NOTES: Please note that certain sizes do not follow a trend of increased allowable nozzle loads with increased pump size. This is due to interaction of individual pump geometry (i.e., nozzle wall thickness, distance from flange face to nozzle con-nection with casing, etc.).

a This is not an ASME size. It is included here as a special Group 1 size that is common among manufacturers.

The allowable individual nozzle loads for Table 9.6.2.1.1 are based on the following formula:

I F xs I < 1 0 I F ys I < 1 0 I F zs I < 1 0 F xs max - . ' F ys max - . ' F zs max - . '

I F xd I < 1 0 I F yd I < 1 0 I F zd I < 1 0 F xd max - . ' F yd max - . , F zd max - . ' I MXS I< 1 0 Mxs max - . '

I Mxd I< i 0

Mxd max - . ,

I M ys I < 1 0 I M zs I < 1 0 Mysmax - . , Mzsmax - . '

I Myd I< 1 0 I Mzd I< 1 0 M yd max - . ' M zd max - . ,

5


Table 9.6.2.1.2 A llowable combination nozzle loads for nozzle stress, hold-down bolt stress and pump s lippage on baseplate. Horizontal end suction pumps in accordance with ASME 873.1 M

Suction Discharge

Forces (lb) Moments (ftlb) Forces (lb) Moments (ft-lb) ASME 873 Pump Fxs Fys Fzs Mxs Mys Mzs Fxd Fyd Fzd Mxd Myd Mzd Designation Size max max max max max max max max max max max max

AA 1.5 X 1 X 6 2020 750 750 1830 170 170 2020 1350 6240 410 410 410 AB 3 X 1.5 X 6 2020 1240 2110 2290 490 490 2020 1350 6240 550 550 510 A10 3x2x6 2020 1050 1050 2290 220 220 2020 1350 6240 1030 1030 510 AA 1.5 x 1 x8 2020 1210 1210 1830 190 190 2020 1350 6240 360 360 360

3 X 1.5 X 8a 2020 1240 1640 I 2290 490 490 2020 1350 6240 440 440 440 A 50 3 X 1.5 X 8 2700 1350 1820 3730 370 370 2020 1350 6240 460 460 460 A60 3 x 2 x 8 2700 1350 2490 3730 600 600 1970 1350 6240 660 660 660 A70 4 x 3x8 2700 1350 1840 I 3730 350 350 2020 1350 6240 1460 1460 690 A05 2 X 1 X 10 2340 960 960 3640 220 220 2020 1350 I 6240 660 660 660 A 50 3 X 1.5 X 10 2700 1350 1910 3730 420 420 .1940 1350 6240 370 370 370 A60 3 X 2 X 10 2700 1350 1480 3730 310 310 2020 1350 6240 56


Table 9.6.2.1.3 Allowable combination nozzle loads for y-axis movement. Horizontal end suction pumps in accordance with ASME 873.1M

Suction Discharge

Forces (lb) Moments (ft-lb) Forces (lb) Moments (ft-lb) Pump Fys Mxs Mys Mzs Fyd Mxd Myd Mzd Group max max max max max max max max

Group 1 - 2000 900 1200 1250 1500 - 500 1500 1250 Group 2 -3500 1300 1300 3000 2500 -1200 1500 3000 Group 3 -5000 1500 2000 4000 3000 - 1250 5000 4000

The allowable combined nozzle loads for Table 9.6.2.1.3 are based on the following formula:

Fys Mxs Mys Mzs Fyd Mxd + Myd .:. Mzd -1.0::;a= + + + + + . ~1.0

F ys max M xs max M ys max M zs max F yd max M xd max M yd max M zd max

Table 9.6.2.1.4 Allowable combination nozzle loads for z-axis movement. Horizontal end suction pumps in accordance with ASME 873.1 M

Suction Discharge

Forces (lb) Moments (ft-lb) Forces (lb) Moments (f1-lb) Pump Fxs Fzs Mxs Mys Mzs Fxd Fyd Fzd Mxd Myd Mzd Group max max max max max max max max max max max

Group 1 1050 -1250 1500 1200 -2500 800 2000 - 3000 - 1500 1000 - 2500 Group 2 3500 - 1500 1500 1300 -3500 1400 2500 -3250 -1500 2150 - 3500 Group 3 3500 -2000 1500 4100 -4000 1500 4000 - 3500 -1500 5000 -4000

The allowable combined nozzle loads for Table 9.6.2.1.4 are based on the following formula:

F F M M M -l .Q ::; b = XS + ZS + XS + ys + ZS +

F xs max F zs max M xs max M ys max M zs max

F xd F yd F zd M xd M yd M zd F + F + F + + + ::; 10

xd max yd max zd max M xd max M yd max M zd max

7

HI Centrifugal and Vertical Pumps for Allowable Nozz1e Loads- 2001

Table 9.6.2.1.5 List of material specifications as used in Table 9.6.2.1 .6

Material Groups (See NOTE 1) Castings Material Group

No. Nominal Designation Spec. No. Grade(s) NOTES 1.0 Ductile Cast Iron A395 --- (2) 1.1 Carbon Steel A216 WC8

2.1 Type 304 A744 CF-8

2.2 Type 316 A744 CF-8M

2.3 Type 304L A744 CF-3 Type 316L CF-3M

2.4 Type 321 --- ---2.8 CD-4MCu A744 CD-4Mcu

CD-4MCu A890 CD-4MCu Grade 1 A, 1 8

3.1 Alloy 20 A744 CN-7M

3.2 Nickel A494 CZ-100 (3) 3.4 Monel A744 M-35-1

M-30C M-35-2

3.5 lnconel600 A744 CY-40 lnconel625 A744 CW-6MC lnconel825 A744 Cu-5MCuC

3.7 Hastelloy 8 A494 N-12MV N-7M

3.8 HastelloyC A494 CW-6M, CW-2M,

CW-12MW CX-2MW

NOTES: (1) Material classes are similar to material classes taken from ANSI 816.5, except for Class 1.0 ductile cast iron, which is not listed in ANSI 816.5. Please note that the material grades are not the same as listed in ANSI 816.5. However, they are comparable grades as far as strength is concerned.

(2) Operating temperature range is 20F to 6SOCF for ductile iron. (3) Operating temperature range is - 20F to 600F for nickel.

8

I

HI Centrifugal and Vertical Pumps lor Allowable Nozzle Loads - 2001

Table 9.6.2.1 .6 ASME 873.1 M metallic pump temperature and material adjustment values to be used on Table 9.6.2.1 .2 values. Use for both Class 150 and Class 300 flanges

Materia l Group No. :

1.0 1 .1 2.1 I 2.2 I 2.3 I 2.4 I' 28 I 3.1 I 3.2 I 3.4 I 35 I 3.7 I 3.8 Austenitic Steels Nickel and Nickel Alloys

Type Ductile 304L

Temp, Cast Carbon Type Type Type Type CD4M , F Iron Steel 304 I 3 16 316L 321 Cu Alloy 20 Nickel Monel lnconel Hast. B Hast. C

- 20 to 0.89 l 1.00 I 1.00 1.00 0.83 1.00 I 1.00 0.83 0.50 I 0.83 1.00 1.00 1.00 100 200 0.83 I 0.94 0.83 0.86 0.70 0.98 1.00 0.77 0.50 0.74 0.93 1.00 1.00 300 0.78 0.91 I 0.74 0.78 063 0.83 1.00 0.73 0.50 I 0.69 0.89 1.00 1.00 i 400 0.73 I 0.88 065 0.72 0.58 0.69 0.98 0.67 0.50 I 0.67 0.85 0.98 0.98 500 0.69 I 0.83 0.60 0.67 0.53 0.64 0.92 0.65 0.50 0.66 0.83 0.92 0.92 600 0.65 0.76 0.58 0.63 0.50 0.60 0.84 0.63 0.50 0.66 0.80 0.84 0.84

650 0.63 0.74 0.57 062 0.49 0.60 0.82 0.63 ... 0.66 0.78 0.82 0.82

700 --- 0.74 0.56 0.60 0.48 0.58 I I 0.79 0.62 I --- 0.66 0.77 I 0.79 0.79

t

I I I j

9


S.6.2.2 Yerticalinline pumps 9.6.2.2.1 Scope

This section covers minimum allowable nozzle loads for pumps designed and constructed in accordance with ANSI/ASME B73.2M, Specification for Vertical In-Line Centrifugal Pumps for Chemical Process, with Class 150 and 300 flanges. To be applicable, the pump casing and seal chamber or stuffing box must be con-structed of a material listed in Table 9.6.2.2.2 and sub-jected to temperatures between -20F and 500F unless otherwise specified.

9.6.2.2.2 Nomenclature and definitions

9.6.2.2.2.1 Source

The nomenclature and definitions of pump compo-nents shall be in accordance with those promulgated by the Hydraulic Institute.

9.6.2.2.2.2 Additional terms (refer to Figure 9.6.2.2.1)

Fx ::: applied force on x-axis on suction or dis-charge nozzle

F y applied force on y-axis on suction or dis-charge nozzle

F2 applied force on z-axis on suction or dis-charge nozzle

Mx ::: applied moment about x-axis on suction or discharge nozzle

Figure 9.6.2.2.1 -Coordinate system for ASME 873.2M vertical in-line pumps

10

My = applied moment about y-axis on suction or discharge nozzle

applied moment about z-axis on suction or . discharge nozzle

9.6.2.2.3 Criteria for loading allowances

9.6.2.2.3.1 Flange stress

The maximum stress developed in the pump flanges by the applied nozzle loads combined with internal pressure will not exceed 26,250 psi tensile and 13,125 shear. This is in accordance with the allowable stress for ASTM A351 (A 744/743) - Grade CF8M per ASME Boiler and Pressure Vessel Code.

The flange stress is calculated using the method con-tained in the ASME Boiler and Pressure Vessel Code, 1995 Edition, Section Il l, Division 1, Appendix XI -Rules for Bolted Flange Connections for Class 2 and 3 Components and Class MC Vessels.

The maximum bending (Mx, Mz) and torsional (My) moments are those moments that, when applied to the flange, will develop the maximum allowed flange stress.

The maximum shear force (Fx, Fz) equals the maxi-mum bending moment divided by overall pump length: SO, as defined by ASME B73.2M.

The maximum axial force (Fy) is that force which will develop tensile stress of 7,000 psi in the flange bolts. This tensile stress is in addition to the stress devel-oped by internal pressure and flange gasket seating loads. The total combined stress must be evaluated for the service conditions and bolts of adequate strength must be used. The minimum required bolt strength is equal to the sum of: (7000 psi) plus (bolt stress due to internal pressure) plus (bolt stress due to gasket loads). Higher nozzle loads may be permitted if bolting of higher than minimum required strength is used.

9.6.2.2.3.2 Pressure-temperature

The temperature shown for a corresponding allowable nozzle load is the temperature of the pressure-con-taining components of the pump. In general, this tem-perature is the same as that of the contained liquid . .

Use of a pressure rating as specified in ANSI/ASME B 16.5 corresponding to a temperature other than that of the contained liquid is the responsibility of the user,


subject to the requirements of the applicable code or regulation .

Low-temperature and high-temperature considerations addressed in ANSI/ASME 816.5 should be examined.

9.6.2.2.4 ANSI/ASME B73.2M pump nozzle loads

Loads given in Table 9.6.2.2.1 are applicable for ASME B73.2M pumps constructed of ASTM A 743/ 7 44 - Grade CF8M (Type 316SS) operated between -20F and 1 00F.

For an individual force or moment or for a combination of more than one force and/or moment, pumps must be capable of satisfactory operation when subjected to loads shown in Table 9.6.2.2.1 (adjusted if applicable) while meeting the criteria of Equation Set 1. Each load in Table 9.6.2.2.1 is such that it is the maximum value for that particular load regardless of whether or not any other external loads are applied.

When applying loads, the absolute value of any indi-vidual load must not exceed the value given in Table 9.6.2.2.1.

9.6.2.2.5 Temperature and material adjustment factors

Adjustment of allowable load values is required if any of the following occur:

1) Temperature is above 100F

2) The pump material construction is not ASTM A 744- Grade CF8M

9.6.2.2.5.1 Adjustment factor basis

Adjustment factors are determined by taking the ANSI/ ASME 816.5 Class 300 pressure-temperature rating of the flange material being used and dividing by the pressure-temperature rating of ASTM A 351 - Grade CF8M Class 300 at 1 00F as specified in ANSI/ASME 81 6.5.

In the case of ductile cast iron, adjustment factors were determined by taking the ANSI/ASME 816.42 Class 300 pressure-temperature ratings and dividing by the pressure-temperature rating of ASTM A 351 -Grade CF8M Class 300 at 100F as specified in ANSI/ ASME 816.5.

9.6.2.2.5.2 Adjustment factors

For temperatures above 100F and/or the use of a material other than ASTM A 744 - Grade CF8M, the loads in Table 9.6.2.2.1 should be reduced by multiply-ing them by the proper adjustment factor from Table 9.6.2.2.3.

For intermediate temperatures not shown in Table 9.6.2.2.3, linear interpolation is permitted.

11


Table 9.6.2.2.1 Allowable nozzle loads (both suc tion and discharge nozzles). Vertical in-line pumps in accordance w ith ASME 8 73.2M

Allowable Nozzle Loads Pump Geometry (both suction and discharge nozzles)

Discharge Nominal Forces (lb) Moments (ft-lb) Nozzle Impeller

Size Diameter so Fx Fy Fz Mx My Mz (inches) (inches) (inches) max max max max max max

1.5 6 15 410 3976 410 510 720 510 1.5 8 17 360 3976 360 510 720 510 1.5 10 19 320 3976 320 510 720 510 1.5 13 24 255 3976 255 51 0 720 510 2 6 17 635 6328 635 900 1270 900 2 8& 10 20 540 6328 540 I 900 1270 900 2 13 24 450 6328 450 900 1270 900 3 8 22 725 6328 725 1330 1880 1330 3 10 25 638 6328 638 1330 1880 1330 3 13 28 570 6328 570 1330 1880 I 1330 4 10 28 700 18704 700 1630 2300 1630 4 13 30 650 18704 650 1630 2300 1630

The allowable individual nozzle loads for Table 9.6.2.2.1 are based on the following formula:

1~~5 1 .0.,~,5 1 .0 , Fxmax Fymax I

Fxd 15 1.0 , I Fyd 15 1.0 , Fx max Fy max

12

1~~5 ~.0 . Fz max I

Fzd 151 .0, Fz max

1~151.0, M x max I

Mxd I::; 1.0, Mxmax

I Mys I 5 1.0, My max I Myd I 5 1.0 , M y max

I Mzs Is 1.0, Mzmax I Mzd Is 1.0, Mz max


Table 9.6.2.2.2 List of material specifications as used in Table 9.6.2.2.3

Material Groups (See NOTE 1) Castings Material Group

No. Nominal Designation Spec. No. Grade(s) NOTES 1.0 Ductile Cast Iron A395 --- (2) 1 .1 Carbon Steel A216 WCB

2.1 Type 304 A744 CF-8

2.2 Type 316 A744 CF-8M

2.3 Type 304L A744 CF-3 Type 316L CF-3M

2.4 Type 321 --- ---2.8 CD-4MCu A744 CD-4Mcu

CD-4MCu A890 CD-4MCu Grade 1 A, 1 B

3. 1 Alloy 20 A744 CN-7M

3.2 Nickel A494 CZ-100 (3) M-35-1

3.4 Monel A744 M-30C M-35-2

lnconel600 A744 CY-40 3.5 lnconel625 A744 CW-6MC

lnconel 825 A744 Cu-5MCuC

3.7" Hastelloy B A494 N-12MV N-7M

CW-6M, 3.8 Hastelloy C A494 CW-2M,

CW-12MW CX-2MW

NOTES: (1) Material classes are similar to material classes taken from ANSI 816.5 except for Class 1.0- ductile cast iron, which is not listed in ANSI B 16.5. Note that the material grades are not the same as listed in ANSI B 16.5. However, they are compa-rable grades as far as strength is concerned.

(2) Operating temperature range is 20F to 65o"oF for ductile iron. (3) Operating temperature range is -20


Table 9.6.2.2.3 ASME B73.2M metallic pump temperature and material adjustment values to be used on Table 9.6.2.2.1 values. Use for both Class 150 and Class 300 flanges

Material Group No.:

1.0 1 .1 2.1 I 2.2 _l 2.3 l 2.4 I 2.8 3.1 I 3.2 I 3.4 l 3.5 I 3.7 I 3.8 Austenitic Steels Nickel and Nickel Alloys

Type Ductile 304L

Temp, Cast Carbon Type Type Type Type CD-4M Alloy I OF Iron Steel 304 316 316L 32.1 Cu 20 Nickel Monel lnconel Hast. B Hast. C -20 0.89 1.00 1.00 1.00 0.83 1.00 1.00 0.83 0.50 0.83 I 1.00 1.00 1.00 to 100 200 0.83 0.94 0.83 0.86 0.70 0.98 1.00 0.77 0.50 l 0.74 I 0.93 1.00 1.00 300 0.78 0.91 0.74 0.78 0.63 0.83 1.00 0.73 0.50 0.69 0.89 1.00 1.00

400 0.73 0.88 0.65 0.72 0.58 0.69 0.98 0.67 0.50 0.67 0.85 0.98 0.98

500 0.69 0.83 0.60 0.67 0.53 0.64 0.92 0.65 0.50 0.66 0.83 0.92 0.92

14


9.6.2.3 Nozzle loads on axial split case pumps (single-stage double suction and two-stage single suction)

9.6.2.3.1 Scope

Nozzle load effects on single-stage double suction and two-stage horizontal axial. split case pumps. Discharge nozzles 2 in. through 10 in. with class 125 and 250 flanges per ANSI/ASME 816.1. Casings made of cast iron and mounted on a ful ly grouted baseplate by four bolts.

9.6.2.3.2 Description

Testing of nozzle loads on the above described pumps have shown that mis-alignment between the pump and driver shaft occurs from movement of the casing rela-tive to the baseplate. The amount of loading that result in movement depends on the sizes of hold-down bolts, the amount of torque applied to the bolts and the grade of bolts. See Table 9.6.2.3.1

The shown nozzle loads are for those applied to cast-iron casings mounted on machined mounting sur-face(s} of carbon steel baseplate. The loads are for Grade A ASTM A307 bolts with no lubrication to the bolt threads.

Calculation of stress in the pump suction or discharge nozzle show that such stress may also limit nozzle loads. See Table 9.6.2.3.2.

9.6.2.3.3 Driver and pump

The allowable radial movement of the pump shaft at the coupling hub due to nozzle loading shall not exceed .005 in. parallel to the initial alignment. Axial movement of the pump shaft at the coupling is not considered.

9.6.2.3.4 Limiting factors

Tests have shown that the limiting factors are not due to:

a} Bending of the shaft at the seal chamber or stuff-ing box

b) Internal distortion of parts

Limiting factors are due to:

a) Tension stress of the bolting of the casing to the baseplate

b) Movement of the casing relative to the baseplate

c) Grade of bolt

d) Torque applied to the bolts

e) Bending stress in the nozzles

9.6.2.3.5 Casing hold-down bolts

The maximum allowable tensile stress for the hold-down bolts is 90% of ASTM A 307 Grade A yield strength. The maximum allowable shear stress for the hold-down bolts is 25% of ASTM A307 Grade A yield strength.

Fasteners used for hold down bolts must have a yield strength greater than or equal to ASTM A307 Grade A fastener yield strength.

The casing shall be bolted to the baseplate by four bolts and sufficiently tightened to prevent slippage or movement relative to the baseplate. Refer to API 686, Appendix E, for the required torque values. It may be necessary to arrange for periodic tightening of the bolts to maintain the required torque.

It can be argued that some of the bolts may be against the wall of the bolt hole at initial installation. It can also be argued that with small bolts, the shank of the bolt may bend as the side force overcomes the friction force. To keep the presentation uncomplicated, friction force will be the criterion.

Assumed effect of nozzle loading:

Forces in the X and Y directions, and the moments about the Z-axis (see Figure 9.6.2.3.1 ), are assumed to be distributed equally to all the hold-down fasteners in all four feet. Movement of the pump occurs when the force overcomes the static horizontal friction force on all four feet induced by the torque of the hold-down bolts. The static weight of the pump is relatively small compared to the force induced by the torque of the bolts.

Forces in the Z direction, and moments about the X-or Y-axis, are assumed to be distributed to fasteners in two feet resulting in yielding of the fasteners. The yielding load is the difference between the torque stress applied bolts and the yield stress of the fastener.

It is also. assumed that the piping does not provide restraint to pump movement.

15


Figure 9.6.2.3.1 -Coordinate system for axial split case pumps

Table 9.6.2.3.1 Maximum allowable loads based on hold down bolts

Type of Moments Forces Load (ft-lb) (I b)

Mx and My Mz Fx and Fy Fz

Bolt Dia.- in. I .625 6000 450 600 4000 .75 12000 800 800 6000 .875 17000 1500 1200 8000

1.00 22000 2400 5000 11000

Friction force~ Static coefficient of friction

Cast iron against carbon steel - 0.4

Use the lowest value from Tables 9.6.2.3.1 and 9.6.2.3.2.

For a combination loading use the square root of the sum of the squares as fol lows:

y + Z + X + -- < 1 ( M )2 ( M )2 ( M )2 F )2 MY max Mz max Mx max ( F max -Where:

My = moment about y axis

Mz moment about z axis

Mx = moment about x axes

F tension or compression load (Direction of load does not change sign in equation.)

9.6.2.4 End suction slurry pumps

Horizontal overhung slurry pumps can be grouped into two major categories, lined-casing and unlined casing. Lined casing pumps usually have casing shells of non-wear-resistant composition with a wear-resistant liner (elastomer, hard metal, or a combination). The liner is designed to wear, while the shells are not intended to wear (with recommended maintenance). Unlined-casing pumps are of more traditional design, having casings of wear-resistant metal with heavy wall thickness designed for sacrificial wear.

Because of the wear allowances designed into unlined-casing type slurry pumps, the strength of the casing changes over time. Throughout the life of the

Table 9.6.2.3.2 Maximum allowable nozzle loads based on nozzle stress

Nozzle size Force (lb) Moment (ft-lb) Inches Fx max Fy max F2 max Mx max My max M2 max

2 1800 1400 11 800 600 720 600 3 2400 2700 2400 734 900 734 4 3300 2700 3300 1200 1300 1200

6 4400 2700 4400 2400 1300 2400

8 6500 3500 6500 3800 1500 3800 10 8200 3500 8200 5400 1500 5400

16


pump, the allowable nozzle load are reduced. Standard nozzle loads are not applicable to this design. The user should rely upon the pump manufacturer to establish acceptable nozzle loads for each pump design and define minimum casing wall thickness for each design.

Lined-casing type pumps are designed to retain full casing strength throughout the life of the product (as long as the liners are replaced before wear is allowed to penetrate the liner and affect the shells). This means allowable nozzle loads are much more predict-able. However, with the great variations of pump design among manufacturers, and within any single manufacturer, a standard approach to establishing allowable nozzle loads is not appropriate. The user should rely upon the pump manufacturer to establish acceptable nozzle loads for each pump design.

9.6.2.5 Vertical turbine short set pumps

9.6.2.5.1 Scope

This standard deals solely with the maximum permis-sible loads on a vertical pump when the pump and system flanges are rigidly connected. It does not cover flexible or deformable connections such as bellows or flexible spool pieces.

The choices of vertical pump configurations are numerous and their construction details are as varied as the pump manufacturers who produce them. Con-sequently, the scope of the analysis of forces and moments on vertical pump flanges has been restricted within certain limits, as defined below:

Flange sizes between 2 and 36 inches. This excludes larger pumps, which are frequently cus-tom built and require technical coordination between the manufacturer and user.

Submerged suction with either above pump base (floor) or below pump base (floor) discharge short set pumps.

Pump units that supply clear liquids with a maxi-mum specific gravity of 1 .2.

Vibration limits shou ld not be used in conjunction with this standard, unless agreed to by all involved parties. This is because external loads applied can make certain vibration levels unattainable.

9.6.2.5.2 Definitions

(See Figures 9.6.2.5.1 and 9.6.2.5.2.}

fx, fY' and 12 are .actual applied nozzle forces in their respective coordinate direction.

mx, mY' and mz are actual applied nozzle moments in their respective coordinate direction.

Fx, FY' and F2 are tabulated maximum permissible nozzle forces in their respective coordinate direction.

Mx, MY' and Mz are tabulated maximum permissible nozzle moments in their respective coordi-nate direction.

ly and 12 are the flange centerline distances to the baseplate centerline in the y and z direc-tion respectively.

0 is the nominal discharge nozzle size.

A is the distance from the discharge case to pump base (applicable only on below pump base discharge pump).

Fx', Fy' F2' , Mx', My' and M2 ' are the maximum per-missible nozzle loads after compensation for centerline distance, temperature, and/ or material variation .

P1ab is the pressure rating of 150# carbon steel flange at 100F from ANSI/ASME 616.5.

P new is the pressure rating of the actual material at a given temperature from ANSI/ASME 616.5.

9.6.2.5.3 Methodology

Consider the x-y-z coordinate system origin to be at the discharge flange face centerline.

The included tables of allowable loads show maximum individual loads for each coordinate direction on each flange. The loads are to represent both forces and moments. Each value in the tables represents the maximum allowable load in a particular direction act-ing alone. For cases in which more than one load is applied simultaneously, the following formula should be used:

(Eq. 1)

17

HI Centrifugal and Vertical Pumps ior Allowable Nozzle Loads-- 2001

Category

Shaft-driven. suspended

pump, for water

Configuration

Submerged suction

....... , _____ , _ , ...... _ ,_, ....:...._ _ _ _

-

ly Tables based upon: 0

....... ...... - .......... __ . ____ .................. -- ----

Flange Position , Applica!lon L1m1ts " ..... ...... _ ' .. ---- " """"]""'"""'''"'- " " " " ""'-'"" ' ""'"-' '

. Max. Pressure Max. Temp. Disctl~';:e above l_... ... psi F

! 300 100 36 1nches

.................. _. ____ _ ..... L. . ...................................... __ :4 ___ _ ... __ j __ --... _ ..... ........... , ...... ~--'

r.-;-----------....... .... - ..... ....... . 1 ~~ozzlc ' Nozzle Material: Steel

. ..... }

I Size I Dia Forces (it;) ......... Moments \ft. -I b) ' ! (in.) r-F;"-- -F-;-- I F z I M x I --~~~-- T tv1; --~ .2 .... .... 2o2 ! 1-82 22s 3o2 1 409 --r260, . .......................... ..1............. . --- "

----~--~---~~~ 291 I ~:~--r-~~~ -t--~~~ : ~~~ . -- 6

1 606 546 r-~?-~~1 892 l. 1099 770._J

8 1 808 728 _j __ ~~~-- 1244 1499 1 o76 -~J _ _J_010 ~ .. i 1124 1667 1~-~= -~ --.. ~==~__]

12 i 1212 ! 1092 1349 2 178 ~~~~ ... !. .. ~.~~0.-i :_ 14_ J-1~i."E~f_ .i1i-~ 2790 3372 2422 !

- +~- -j- ~ -~ ~: ~ ;~: "" ' --~?.??..~:~-~-~f2 - "3043-l 20 ; 2020 1820

--- -

22 2222 2002 24 2424 2 184 2698 l 7338 I

r 3o 3079 277 4 _ _j ___ ?..:~6 ; 1 0980 1 12343 : r 36 3694 ~~?.~ L .. =-,-~ , 13691 , 1552~J_ , _,_36_7 !

Deviation from 1he tables is acceptable provided the following relationship fx fv fz mx mv mz / is mainiained: - + ~ + - T - + ~ + - -- 1 Fx Fy F 2 Mx My M7 -

Figure 9.6.2.5.1 -Nozzle loads for above pump base (floor) discharge pumps

18


- ----- ------~ -- ---

Category !,, . ____ _

Shaft-driven. suspended

pump. for water

A i i . . ! i i

1 Configuration , Flange Position i ............ ....J___ 1

s b d I o u merge 1 1scharge belovv suction base

l\.1ax. Pressure psi

Application Limits

tv1ax. Temp. F

- i - .. , ...... ___ _ _ 300 100

! t..r1ax. Nozzle SiLe I ! inches

36

1 Nozzle . : S1ze , Nozzle !\-1aterial: Sieel

.

, __ y_ Tables based upon: 0 =

Deviation from the tables is acceptable provided the following relationship fx , fy fz . mx . my _ m, _

is maintained: F-x - r~ + F;.,. M:.,. M~ ... Ml ~ 1

Figure 9.6.2.5.2- Nozzle loads for below pump base (floor) discharge pumps

19

HI Centrifugal and Vert1cal Pumps for Allowable Nozzle Loads- 2001

The tabulated valutJ.s are generated by holding the fol-lowing relationships:

(Eq. 2)

For the case where Equation 2 cannot be maintained, the maximum permisstble nozzle loads in thetr respective dtroctton can be obtamed from the fol low-ing equations

0 2 .. 3 F '= r .. --x x_(/y x lz l. (Eq. 3)

(Eq. 4)

(Eq. 5)

M . =o M i 0 2 2 X X(f XI i

- y z ~ {Eq. 6)

(Eq. 7)

(Eq. 8)

Materials conform to ca rbon steel. et1her cast . forged , or plate. For higher temperatures and other materials. the loads should be revised using the methodology of ASME 816.5 for flanges.

20

P new , M, - M>. -p

tao

(Eq. 9)

(Eq. 1 0)

(Eq. 11 )

(Eq. 12)

P new M y' - lvl y l p ...... =. )

lilll

p . =- M -I new\

- . pt h J ilv

(Eq. 13)

(Eq. 14)

For be low pump base discharge pumps. one addi !tonal factor must be held to the following relationship.

A S:: 100 (Eq. 15)

For the case where Equation 15 cannot be main-tained. the maximum permtssible nozzle load s. 1n their respective direction. can be obtained from the follow-ing equattons:

F . 290 J2 >. = F xL 0 - 3A l (Eq 16)

(Eq. 17)

F ' z (Eq. 18)

(Eq. 19)

M ' .. 1902

-

Y = rv' .vl 2 J .. !2AD - D 1-

(Eq. 20)

(Eq. 21 )

Appendix C shows examples to illustrate usage of the prev1ous equations.

Criteria for the maximum individual loads IS based on operating expenences with extsring products and the following:

Deflection - The max1mum allowable lateral deflection at the stuffing box area is 0.002 inches. This restriction on deflection is because most mechanical seals are designed to operate within these limits.

No contact between moving and stationary pans (i.e .. impeller and bowls). The max1mum allowable lateral deflection at the pump bowl is 0.002 inches.

HI Centrifugal and Vertical Pumps for Allovable Nozzle Loads- 2001

Pump tie-down fasteners - baseplate anchor bolls suf-ftc tently torqued to prevent any movement ol the pump. The base will be fully grouted.

2 1

HI Centnfugal and Vertical Pumps for Allowable Nozzle Loads - Appendix A: Loading Examples - 2001

Appendix A Loading Examples ASM.E 873.1 M Pumps

Thrs appendix rs not part of Hydraulic Institute Standard 9.6.2 and is included for informahon purposes only.

EXAMPLE 1: An ASME B73.1 M 1.5x1 -8 CF8M (Type 316) pump with Class 150 flanges is to be operated at 1 OO' F. It IS mounted on a fully grouted metal baseplate held down by anchor bolls.

Applied nozzle loads:

F x suctron = 1 00 lb. F . suction = -1 00 lb. '

F2. suction = 100 lb. Mx. suction = - 100 It-lb. M:.- suction = 100ft-lb. M2 , suct1on = -100ft-lb.

Fx. discharge = 100 lb. F Y' discharge = - 1 00 lb. F2 , discharge = 100 lb. Mx, discharge = -100 It -lb. My discharge = 100 fl-lb. Mz. discharge = -100 ft-lb.

The applied loads are compared to the allowable loads below.

22

1) Derati ng Loads

On comparing temperature and material parameters with the scope of this standard. it IS found that thrs rs an applicable scenario. Since CF8M IS the matenal. and temperature of operat1on is less than 1 OO"F. no adjustment of the allowable table loads is necessary. Also. since the unit is mounted on a fully grouted metal baseplate with anchor bolts. no adjustment of the allowable table loads is necessary.

2) Individual Nozzle Load Evaluation

The applied roads are entered into the numerators of Equation Set 1 and the allowable loads from Table 9.6.2.1 .1 for the pump s1ze being evaluated are entered into the denominators.

l _!._~~ .... i ~1.0 . i Fys 1:5 1.0, I Fzs l ::o: 1.0 !F xs maxi IF ys maxi 1F zs maxi

M : i-...E_i:::; 1.0. ;M xs max

I M:x:~~~ ~ 1.0.

M ' ! fv1 I .,._...:.Y_'s_i < 1 0 1 zs I :5 1.0 Mys maxl- .. IM zs max!

M yd ' s 1.0,. Mzd l s 1.0 M yd max, !M zd maxi

I 100 ! 0 0 l1o5ol = 1 s

1=1 00! = 0 .1 4 i 720 I

l ~gg l = 0.13

i-1001 = 0.08 ~ i 21 0!

11oo; = 0.53 190j

j-1001 = 0.07 ' 1350,

' 100 = 0.28 13601

: 100 i -l121ol - o.os

1-1 001 = 0.53 190 i

: 100 13000 = 0 '03

' -100 = 0 .28 i 360

From above evaluation, all values are less than 1 .0. so proceed to evaluating combination of loads.

HI Ceninfugal and Verttcal Pumps for Allowable Nozzle Loads - Appendix A: Loading Examples - 2001

3) Nozzle Stress . Bolt Stress and Pump Sltppage on Baseplate Evaluation

The applted loads are entered 1nto the numerators of Equation Set 2. and the allowable loads irom Table 9 .6.2 .1.2 for the pump s1ze being evaluated are entered 1nio the denominators.

. fv1 "' /~

M zs rn;;x I :. 1.0

100 i l- 100' ' 100 -1001 100! - 100 l 1 x 2o2o., i1'2T61.,. 112io1 - .,-~no ' 19ol f l 19o l ..- I 1 15 2 11 100 1- -100: - . 100 1 ... 1-100. - 1001 . -100

I 2020 11350: ;62401 I 360 I . 36'61 T I 360 .

From above evalualton. the summa110n ts greater than 1.0. so 1t1e loadtng scenano is too h1gh. The loacs must be reduced and reevaluated unttl thts summatton is less !han or equal to 1 0 before proceedtng 10 the next step.

New applied loads:

F ,.. suction = 75 lb. Fr SUCtiOn = - 75 lb. F2 suction = 75 lb Mx. SUCltOn = -75 ft-lb. My SUCtiOn = 75 rt-lb. M1 . suction = - 75 fHb.

4 ) IndiVidual Nozzle Load Evalua tion (New LoadS)

Fx. discharge = 75 lb. F :- discharge = - 7 5 lb F z- discharge = 75 lb. Mx discharge = -75 fHb . MY' d1scharge = 75 fi-lb. M7 . discharge = - 75 ft-lb.

The appl1ed loads are entered into the numerators of Equat1on Set i. and the allowable loads from Table 9.6.2 1. 1 for the pump size betng evaluated are entered 1mo the denominators_

F "'~ .: 1 0 I~Y!__ I F 7 ' I I 75 . i - 75 I 75 F xs ~;.~~ _; . . ~ 1.0 . 1---~- :;;. 1.0 ;, osol = 0.07 l1210 ::: 0 .06 0 .06 .{:

,Fzsrnax 1210 ' ' ysmax

!lt1 xs " , Mvs I 'vi ::; 1.0. ! J 'zs .~ .-751 0.10 ; 75 0.39 -75 0.39 _ _ _ I'" 1.0 . 1----- , ____ ,.,:; 1.0 'no I .1901 IMx s max: fv1 ys maxi 'M zs max! ' 190

F~o 1 ~ 1.01 Fvd _ls 1.0, F:::a 75 1- 75 0.06 7 r 0.03 :5 1.0 = 0 .09 .. . ;) ;:;

' F)

Hf CentrifiJgal and Vertical Pumps tor Allowable Nozzle Loads - Appendix A: Load1ng Examples- 2001

24

5) Nozzle Stress. Bolt Stress and Pump Slippage on Basepla!e Evaluation (New Loads) The applied loads are entered imo ihe numerators of Equaton Set 2, and the allowable loads from Table 9.6 2 1.2 for the pump s1ze be1ng evaluated are entered into the denommators.

1 2

F x:. I+! Fvs l + - F zs _._ I M xs - M vs . , M .: :> 1 F xs max i Fys max. F zs maxi M xs ITlllX I M )' :> max M zs max ,

ll F xd l F yd i j F zd M xd I M va I M za I I "" i--1 + + + 1 I ,F>.dmaxl jFyd maxl JFzct max M xdrnax M vdmax Mzamaxl i

... 0.86

6) Y-ax1s Deflect1on Evaluation (New Loads}

:.: 1.0

The appl1ed loads are entered into the numerators o f Equat1on Set 3, and the allowable loads from Table 9.6.2. 1 3 for the pump s1ze bemg evaluated are entered 1nto the denom1nators.

Fls - 1 .0 ~ a ~ F ys rna,.

M,.s +

Mx,; may Mys m

-2000 900 1200 1250 1500 -500 1500 1250

From the above evaluation, the summation IS between - 1.0 and +1.0, so proceed to evaluatmg Equation Set

HI Centrifugal and Vertical Pumps for Allowable Nozzle Loads - Appendix A: Loading Examples - 2001

8) Combined Axis Deflection Evaluation

The results from Equation Sets 3 and 4 are evaluated with the Equation Set 5 below.

From the above evaluation. the summation is less than 1 .0, evaluation complete. New load1ng scenario IS satisfactory.

EXAMPLE 2: An ASME-873.1M 3x1.5-13 Alloy 20 pump with Class 300 flanges is to be operated at 400 F. It is mounted on a fully grouted metal baseplate held down by anchor bolts.

Applred nozzle loads:

F x suction = so lb. FY' suction = - 50 lb. F,. SUCtiOn = 50 lb. Mx, suction = -50ft-lb. My- suction = 50 ft-lb. Mz. suctron = -50ft-lb.

Fx discharge = 50 lb. F., discharge = - 50 lb.

J

F 2 drscharge = 50 lb. Mx, d1scharge = - 50ft-lb. My- discharge = 50 ftlb. Mz. discharge = -50 ft-lb.


1) Derating Loads

Upon comparing operating temperature and material parameters with the scope of this standard. it is found that this is an applicable scenario. Since Alloy 20 is the material and operat1on is occurring at 400 F. an adjustment of Table 9.6.2.1.2 loads is necessary. No adjustment for mounting is necessary since the un1t is on a fully grouted metal baseplate with anchor bolts.

Using Table 9.6.2 .1.6, a derating value of 0.67 is found under Alloy 20 at 400'F. Derate the values in Table 9.6.2. 1.2 as shown below.

Line in Table 9.6.2.1.2 before derating:

--- --- -,..-- - i Mys Mzs Fxd Fyd J

HI Centnfugal and Vert1cal Pumps lor Allowable Nozzle Loads - Appendix A: Loading Examples- 2001

26

lower values should replace !he corresponding values in Table 9.6.2.1.1. The new line in Table 9.6.2.1.1 1s as below.

New line in Table 9.6.2.1.1: ...... _.. --:--~--... r .... - .............. -----r- -, - ... ........ _, __ ... ..T __ I i F x$ F vs F ls I r-.:1 : - 50 ' ! ............ __ , "" 0.04 j13oo:

0.04

:::::501 = 0.14 !355!

!- 501 !9os! == o.o6

i 50 : 1449! = 0 '11

j ;~~i :: 0.06 I 50 = 0.14 r355i

50 ;:: 0.03 1500

! 50] = 0.11 449

~~~ .... !::: 0.02 3250!

-50 0 1-- -: = .14 ,355'

From above evaluation. all values are less than 1.0. so proceed to evaluating combination of loads.

3) Nozzle Stress, Boll Stress and Pump Slippage on Baseplate Evaluat1on

The applied loads are entered into the numerators of Equation Set 2. and the adjusted allowable loads irom Table 9.6.2.1 .2 above for the pump size being evaluated are entered into the denominators.

:S 1.0 2

= 0.44

From above evaluation . all values are less than 1.0. continue evaluating combination of loads w ith Equat1on Set 3.

H I Centrifugal and Venical Pumps for Allowable Nozzle Loads - Appendix A: Loading Examples- 2001

4) Y-axis Deflection Evaluation

The applied loads are entered 1nto the numerators o i Equation Set 3. and the allowable loads from Table 9 .6 .2.1.3 for the pump size being evaluated are ente red into the denominators. No adjustment is required is this case.

From the above evaluation . the summation is between -1 .0 and + 1.0. so proceed to evaluat1ng Equat1on Set4

- 1.0 s: a = - F Y~- + - -M~ i _w.'__y~- + -..!:!__~ ~-- + - ~J!!_ + __ _!!_x._d ~ ___ M v- 50 - 50 50 - 50 - 50 - 50 50 - 50 a = .... _____ ... ---- , - , .... _ 1 -- + ...... -- + - - + -------- 0.04 -3500 1300 1300 3000 2500 - 1200 1500 3000

5) Z-axis Deflection Evaluation

The applied loads are entered into the numerators of Equat1on Set 4, and the allowable loads from Table 9.6.2. 1.4 for the pump size being evaluated are entered mto the denominators. No adjustment is required is this case.

Fxs Fzs Mx.c MI'S Mzs - 1 .0 5 b = + - ' - .

F xs max F zs max ,.. fv1 x-;-:nax ' fv1 ys. max 7

M zs max .,

F zd Mx ri Fvd + . -;-

F xd rnax F yd max F zd max M .._,d Mzd

+ + 5 1 0 M xo max M yd max M zd max

50 50 - 50 50 - 50 50 -50 50 - 50 50 -50 = 0 .07 b = 3500 + --1500 + 1500 + 136-6 + -3500 -t 1400 + 2soo .,. =3250' -1500 ... 2150 ' - 3500

From the above evaluation. the summation is between -1 .0 and + 1.0. so proceed to evaluating Equation SetS.

6) Combined Axis Deflection Evaluation

The results from Equation Set 3 and 4 are evaluated with Equation Set 5 below.

From the above evaluation. the summation is less than 1.0. evaluation complete. Loading scenario is satisfactory.

27

HI Centrifugal and Vertical Pumps tor Allowable Nozzle loads - Appendix A: Loading Examples - 2001

EXAMPLE 3: An A8ME B73.5M 1.5Xl-8 pump having a material with a moGul us of elasticity greater than 1.0 /.1 o6 1s to be operated at 110 F. It is mounted on a fu lly grouted nonmetal baseplate.

Applted nozzle loads:

Fx suction 150 lb. F x' discharge 50 lb. F'f suct1on = 0 lb. Fl-. discharge == 0 !b. Fz. suction 0 lb. F 2 discharge 50 lb. Mx, suct10n = -50 It-lb. Mx, discharge - 50 ft-lb. My- suction 200ft-lb. MY' discharge = 0 11-lb. Mz. suction = - 50 fl-lb. M,, discharge - - 50 ft-lb.

The applied loads are compared to the allowable loads as follows:

28

1) Derating Loads

Upon comparing operating temperature and material parameters wtth the scope of this standard. tt IS found that this is an applicable scenario. An adjustment must be made to the allowable load tables due to the fol-lowing reasons:

ASME B73.5M design and construction

Fully grouted nonmetal baseplate with anchor bolts

The lower of the two derating values is to be used for derating Tables 9.6.2.1.1 - 9.6.2. 1.4. Reiernng to. Section 9.6.2.1.6. a derating value of 0.9 is to be used on Tables 9.6.2.1 .1 - 9.6.2. 1.4 for all pumps with ASME 8735M construction. Referring io Section 9.6.2.1.7.1.3. a derating value of 0.8 IS to be used on Tables 9.6.2.1.1 - 9.6.2.1.4 when using fully grouted. nonmetal baseplates. Using the lower of the two val-ues. Tables 9.6.2.1.1 - 9.6.2.1.4 must be multiplied by 0.8.

Line in Table 9.6.2.1 .1 before derating:

Line in Table 9.6.2.1 .1 after derating with 0.8 factor:

! I Fxs . "------r--

1 1.s . , , 8 I 84o

- ---- . J _ _ _

! _Fvs --: ~zs ~- Mxs Mys Mzs Fxo.__,j_F_yc- 1-F-,o--,-M-x_d_'_M_yd-r~~;~--~ 968 1 96-8-+!-s-7._6__..._,-s-2---:--,-s-2- , _6_4_o-ru;8~;;1. 2_88---1._--_2-~~~:L~~ !

Line in Table 9.6.2. 1.2 before derating:

1 ___ .. --~~-F ~= J F ys F zs Mxs : M ys +--M_zs_ - ~x_o I Fya J F zo ~ M_~_o~_M_v_c _:. . ~:z_~~

! 1 . s . 1 " 8 2020 l 121 o __ , _21_?._, _,_s3_o_ l_ 1 go 19o 2020 ~-~==o 1 e2~o I 360 360 360 - ___ j

HI Centrifugal and Vertical Pumps for Allowable Nozzle Loads - Appendrx A: Loading Examples - 2001

Line in Table 9.6 .2 .1 .2 after derating with 0.8 factor :

Fxd i F.,0 Fz J M~-1 tv1..,. f ~ v I. )' - -- -r--- -:---. .. ----: -

1616 I 1080 4992 I 288 288 ; ~~-~

288

Line m Table 9.6.2. 1 .3 before derating:

Lrne in Table 9.6 .2.1 .3 after deratrng with 0.8 factor :

Lrne in Table 9.6.2. 1.4 before deratrng:

Line in Table 9.6.2.1.4 after derating with 0.8 factor:

2) Individual Nozzle Load Evaluation

The applied loads are entered into the numerators of Equation Set 1. and the allowable loads from Table 9.6.2 .1.1 for the pump size being evaluated are entered inio the denominators.

F XS i ----1:5. 1.0 , F xs maxi

F I F : ys ::; 1.0. _E.._I ~ 1.0 iF ys maxi F zs max

M ! M I I M !. xs ' ::_. 1.0. vs i 1 0 zs 1 0 -:-:---~ I ' i~., i~.

M xs maxi i M ys maxi I M zs maxi F ' F ; F ' ~-~5 1 0, I yd i S 1.0. I zd i $ 1.0

F xd maxi F yd max J F zd max!

M xd ! ~ 1.0 . 1. -;'.VI yd ~: ::; 1.0, M xd maxi . ,lVI yd max I~M...;;z;..::.ff_ l :; 1.0 M zd max!

150 L- = 0.18 1840

~~~~~ = 0.09

!- 50' i288; -

0.17

; o I !968

0.00

12001 = 1.32 ,152,

i 0 l-1 = 0.00 ,1080;

1258081 = 0.17

I_Q_i = o.oo !968[

, so I = i2400- 0.02

1-50! 12881

0 .1 7

From above evaluation. the value for Mys is too high. The loads rnust be reduced and reevaluated until this result is less than or equal to 1 .0 before continuing.

29

HI Centnfugal and Vertical Pumps for Allowable Nozzle Loads - Appendix B: Loading Examples - 2001

Appendix B

Loading Examples ASME B73.2M Pumps

Th1s appendix is not part of Hydraul1c lnslltute Standard 9.6.2 and 1s included for informa!1on purposes only.

EXAMPLE 1: An ASME B73.2M Size 2015/17 (1.5-inch discharge. 8-inch nominal impeller) CF8M (Type 316) pump with Class 150 flanges is to be operated at 1 oo F.

Applied nozzle loads:

Fx, suction ::: 150 lb. F x discharge 200 lb. F,,. suction :::: -2100 lb. F . discharge - 2200 lb.

' Fz. suction 1751b. F 2 , discharge ::: 2751b. Mx, suction = -260ft-lb. Mx. discharge = - 360 ftlb. M . suction = y 430 !Hb. MY' discharge 530 fl -lb. M1 suction - 340 tt-lb. fv12 , discharge = - 440 ft-lb.


30

1) Derating Loads

Upon comparing temperature and material parameters with the scope of this standard. 1t is found that this JS an applicable scenario. Since CF8M is the material and temperature of operation is less than or equal to 1 oo-F, no adjustment of the allowable table loads is necessary.

2} Nozzle Load Evaluat1on

The applied loads are entered into the numerators of Equation Set 1 and the allowable loads from Table 9.6.2.2.1 for the purnp size being evaluated are entered 1nto the denominators.

' F ' : F l F I 1-:E_Is 1.o. ,~~~ 1.o. ~ ~1.o : F x max' , F y max F z maxi

I /v1 VS I 0 ,. /v1 r I ~ ; < _::, ...... ;- - ; - 1 . . --:- 1.0 jM y max' :M z maxi

_Mxd 1 ~ 1 . 0. 1 MY.?.Js 1.0.~~-~-l:; 1 .0 M x maxi 1M y max: , lv1 z max

' ~90 1 :::: 0.56 !360]

1-360 ----i = ! 510 I

0 .71

l-21 001 .--! : 3976 :

14301 ::: 720:

1- 22001 3976 1

j530! =

:7201

0.53 !175' l36cii

::: 0.49

0.60 :-340' = 0 .67 ; 51 o I

= 0.55 !2751

= 0.76 360

0.74 -440' :::: 0.86 510 '

From the above evaluation. ihe summation is less than 1.0. evaluaiion complete. Loading scenario IS satisfactory.

HI Centrifugal and Vertical Pumps for Allowable Nozzle Loads - Appendix B: Loading Examples- 2001

EXAMPLE 2: An ASME-B73.2M 4030i 28 (2-inch discharge. 13-inch nominal impeller) Alloy 20 pump with Class 300 flanges is to be operated at 400 F.

Applied nozzle loads: Fx. suction

-150 lb. Fx, discharge 200 lb.

F,. suction -- 2100 lb. F 't discharge -2200 lb. FL . suction 1751b. F z discharge 2751b. Mx, SuCtiOn :: -260ft-lb. Mx discharge = -360ft-lb.

M~. suction 430 It-lb. M., .. discharge = 530ft-lb. Mz. suction = - 340 fl- lb. Mz. discharge = - 440 f!-lb.

Tile applied loads are compared to the allowable loads below.

1) Derating Loads

Upon comparing operating temperature and material parameters with the scope ol this standard, it IS found that this is an applicable scenario. Since Alloy 20 is the rnatenal and operation is occurring at 400 F. an adjustment of Table 9.6.2.2.1 loads is necessary.

Using Table 9.6.2.2.3, a derating value of 0.67 1s found under Alloy 20 at 400 F. Derate the values 1n Table 9.6.2.2.1 as shown below.

Line in Table 9.6.2.2.1 before derating: r---;-, --~--

-, .. ............ -.,-, --+,- ....... _,_ ....... : ............. ~' - _____ , 2 13 l 24 I 450 6328 450

.... ., ........ L ...... ~~~ --.L_--.. - ... _ ................ A.--- 1

Mx M,-r--~~ 1 goo 1270 1 -~;~--]

Line in Table 9.6.2.2.1 after derating by a factor of 0.67: r--- ............... __ ......... ..., .... ----,...! --~- - r--

Fx .Fy Fz i M,., My 1 Mz 302 r~_-?4_0__, ___ 302 -l-- -~~;--- i 851 603

2) lndtvidual Nozzle Load Evaluation

The applied loads are entered into the numerators of Equation Set 1, and the allowable loads from Table 9 6.2.2.1. after derating. for the pump size being evaluated are entered into the denommators.

I F . F I I - I X$ I y- ~ ,.. Z'" ,. 1-- , ~1 .0. !--" 1 ~1.0. - "' --1:::: 1.0 F x max , F v maxi F z max

_=.._;:::: 1.0 I Mxs I -~ 1.0, I Mrs i. ,_-: 1.0 'I Mr I Mx maxi IM y maxi !Mz maxi I

F . F ' F ; Fx-~ma,=,--x ... S 1.0. ___ .:___; 5 1.0, ~ S 1.0 F y max J ; F z maxi I M I ' M ' ; M ' 1 __ x_a_ j ::: 1.0. ! yd : < 1 0 !~1 $1.0 lM x maxi !My m

HI Centrifugal and Vertical Pumps for Allowable Nozzle Loads - Appendix C: Loading Examples - 2001

Appendix C

Loading Examples Vertical Turbine Pumps

This appendix is not part of Hydraulic Institute standard 9.6.2 and is included for information purposes only.

Example 1:

A 20-1nch mixed flow pump with an above pump base steel discharge nozzle is subjected to a maximum pressure of 150 psi. The dimensions ly and 11 are 18 inches each. The temperature of the pumped flu1d is 100 'F. What is the maximum perm1ssible nozzle load allowed on the discharge flange?

Answer 1:

From the table 1n Figure 9.6.2.5.1 tor a 20-inch nozzle, ihe loads are:]

Fx = 2020 lb

Example 2:

1820 lb 22481b

Mx My Mz

=

=

-:::

5251 ft- lb 6450 ft - lb 4545 ft - lb

A 20-inch m1xed flow pump with an above ground stainless steel type 316 discharge nozzle 1s subjected to a maximum pressure of 150 psi. The dimens1ons for lv and lz are 30 and 45 inches, respectively. The tem-perature of the pumped fluid is sooF What is the max1mum permiSSible nozzle load allowed on the dis-charge flange in the Z direction?

32

Answer 2:

a) From example 1:

Fz = 2248 lb Mz = 4545 f1- lb

b) From ANSI B 16.5, Class 150 pressure and !em-perature ratings P new = 170 psig (316 stainless steel at 500 F ) Ptnb = 285 psig (carbon steel at 1 OO cF )

c) Us1ng the appropriate equations (Section 9.6.2.5.3), correct the nozzle loads for the flange centerline distance to baseplate centerline and pressure temperature ratings.

lv = 30 in .

F2 ' (Eq. 5}

F2'(Eq11 )

M4' (Eq. 8}

Mz' (Eq. 14}

0 = 20 in.

r 170 ' 666i -- l \ 285 .!

= 666 1b

= 397 lb

= 202011 - lb

2020( ~~~ :, = 1205 ft - lb

H I Centrifugal and Vertical Pumps for Allowable Nozzle Loads - Appendix C: Loading Examples- 2001

Appendix D

References

This append1x is not pan of Hydraulic Institute standard 9.6.2 and is included for information purposes only.

American National Standards and American Soci-ety of Mechanical Engineers Standards

The fol lowing are ava1lable from the American National Standards Institute. 1 1 West 42nd Street. 13th Floor. New York. NY 1 0036. ASME standards are also avail-able from The American Society of Mechanical Engi-neers. 22 Law Drive. Box 2300, Fairfield. NJ 07007-2300 (www.asme.org). When the follow1ng American Nat1onal Standards referred to m this document are superseded by a revtsion approved by the American National Standards Institute. the revision shall apply.

ANSI/ASME 8 16.42. Ductile Iron Pipe Flanges and Flanged Fitttngs

ANSI/ASME B 1 6.5. Pipe Flanges and Flanged Fittings

ANSiiASME 873.1 M. Specification for Horizontal End Suct1on Centrifugal Pumps for Chemical Process

ANSI/ASME 873.21v1. Specification tor Vertical-in-Line Centrifl:lgal Pumps for Chemical Process

ANSI/ASME B73.3M, Specification for Sealless Hori-zontal End Suction Centrifugal Pumps for Chem1cal Process

ANSI/ASME B73.5M. Specification for Thermoplastic and Thermoset Polymer Material Horizontal End Suc-tion Centrifugal Pumps for Chemical Process

ASME Boiler and Pressure Vessel Code. 1983 Edition. Section Ill , NC 3653

ASTM publications

The following are published by the American Society for Testing and Materials , 1916 Race Street, Philadel-phia. PA 19103-1 187 (www.astm.org).

ASTM A 216 i A 216M. Standard Specification for Steel Castings. Carbon. Suitable for Fusion Welding, for High Temperature Service

ASH.Jl A 307 Standard Specification for Carbon Steel Bolts and Studs. 60.000 psi Tensile Strength

ASTM A 395, Standard Specification for Ferritic Duc-tile Iron Pressure-Retaining Castings for Use at Ele-vated Temperatures

ASTM A 494 1 A 4941\4. Standard Specification for Castings. Nickel and Nickel Alloy

ASTM A 744 I A 744M, Standard Specification for Castings, Iron-Chromium-Nickel. Corrosion Res1stant. for Severe Servtce

ASTM A 890 I A 890M. Standard Specification for Castings. Iron- Chromium- Nickel -Molybdenum Cor-rosion Res1stant . Duplex (Austenitic/Ferritic) for Gen-eral Application

API publications

The following are published by The American Petro-leum Institute . 1220 L Street. N.V\1 .. Washington, DC 20005 (vvww.api.org).

API Recommend Practice 686, 1 Recommended Prac-tices for Machinery Installation and Installation Design

HI publications

The follow1ng are publiShed by the Hydraulic Institute. 9 Sylvan Way. Parsippany. NJ 07054-3802 ( www. pumps. or g). ANSI/HI 1.1-1 .22000. Centrifugal Pumps for Nomen-clature and Definitions

ANSI/HI 1.3-2000. Centrifugal Pumps for Destgn and Application

ANSI/HI 1.4-2000. Centrifugal Pumps for Installation and Operation

Published as a cooperative effort with Process Industry Practices REIE:686 PIP REIE686 can be obtained from the Construc-tion Industry Institute- PIP. The Umvers1ty of Texas at Aushn, 3208 Red River. Aust1n. TX 78705.

33

HI Centrifugal and Vertical Pumps for Allowable Nozzle Loads - Index- 2001

Appendix E

Index

Thts appendix is not part of tilts standard, but is presented to help the user in considenng !actors beyond this standard .

Noie: an f. Indicates a figure, and a t. indicates a table.

ANSIIASME 873.1 M. 1. 3, 4. St .. 6t .. 71. LSx 1-8 CF8M (Type 316) pump

combined axis deflection evaluation. 25 derating loads. 22 ind1vidual nozzle load evaluation, 22 individual nozzle load evaluation (new loads), 23 nozzle stress, bolt stress and pump slippage, 23 nozzle stress. bolt stress and pump slippage on

baseplate evaluation (new loads). 24 Y-axis deflection evaluation (new loads}. 24 Zaxis deflection evaluation (new loads) . 24

3x1 .5-13 Alloy 20 pump combtned axis deflection evaluation, 27 derating loads. 25 nozzle stress. boll stress and pump slippage. 26 Y-axis deflection evaluat1on. 27 Z-axis deflection evaluation, 27

ANSI/ASME B73.2M , 11 ANSI/ASME 873.3M, 1 . 3, 4 ANSI/ASME B73.5M, 1. 3

1.5x1-8 pump derating loads. 28 individual nozzle load evaluation, 29

ASME 873.2M 4030/28 Alloy 20 pump

derating loads, 31 individual nozzle load evaluation, 31

size 2015!17 CF8M (Type 316) pump derating loads. 30 nozzle load evaluation. 30

Axial split case pumps c;3sing hold-down bolts. 15 coordinate system. 16f. driver and pump. 15 limiting factors, 15 nozzle loads, 15. 16f.

End suction slurry pumps. 16

34

Horizontal end suction pumps adjustment factors. 4, 91. allowable combination nozzle loads. 61., 71. allowable individual nozzle loads. 51. alternate pump mounting, 3 driver/pump coup ling alignment, 2 grouted nonmetal baseplate. 4 internal pump distortion. 2 material specifications. 81. nomenclature. i, 2f. nozzle load adjustment factors, 3 nozzle loads. 1, 5t .. 6t.. 7!. nozzle stress. 2 pressure-temperature. 2 pump hold down bolts, 2 pump mount1ng, 2 spring-mounted metal baseplate. 4 stilt-mounted metal baseplate, 3 temperature and material adjustment laclors, 4 ungrouted metal baseplate. 3 ungrouted nonmetal baseplate, 4

Nozzle loads axial split case pumps. 15 end suction slurry pumps. 16 horizontal end suction pumps, 1 vertical turbine short set pumps. i 7 vertical -in-line pumps. 10

Vertical turbine short set pumps, 17 force analysis. 17 loading examples. 32 nozzle loads.17, 18f.. 19f. terminology. 17

Vertical-in-line pumps adjustment factors, 11 , 14 I. flange stress. i 0 material specifications, 131. nomenclature. 10, 10f. nozzle loads. 10. 121 pressure-temperature. 10

ANSI_HI 9.6.2-2001 Centrifugal and Vertical Pumps for Allowable Nozzle Loads_Part1ANSI_HI 9.6.2-2001 Centrifugal and Vertical Pumps for Allowable Nozzle Loads_Part2ANSI_HI 9.6.2-2001 Centrifugal and Vertical Pumps for Allowable Nozzle Loads_Part3ANSI_HI 9.6.2-2001 Centrifugal and Vertical Pumps for Allowable Nozzle Loads_Part4ANSI_HI 9.6.2-2001 Centrifugal and Vertical Pumps for Allowable Nozzle Loads_Part5ANSI_HI 9.6.2-2001 Centrifugal and Vertical Pumps for Allowable Nozzle Loads_Part6ANSI_HI 9.6.2-2001 Centrifugal and Vertical Pumps for Allowable Nozzle Loads_Part7ANS

ansi_hi 9.6.2-2001 centrifugal and vertical pumps for allowable nozzle loads.pdf

Documents

standards developer

hydraulic institute

ansi board of standards

vertical pumps

allowable nozzle loads

sylvan way parsippany

substantial agreement

title page