Centrifugal Pumps for Petroleum, Petrochemical and Natural Gas Industries

ANSI/API STANDARD 610

ELEVENTH EDITION, SEPTEMBER 2010 ERRATA, JULY 2011

ISO 13709:2009 (Identical), Centrifugal pumps for petroleum, petrochemical and natural gas industries

Centrifugal Pumps for Petroleum, Petrochemical and Natural Gas Industries

Downstream Segment

ANSI/API STANDARD 610

ELEVENTH EDITION, SEPTEMBER 2010 ERRATA, JULY 2011

ISO 13709:2009 (Identical), Centrifugal pumps for petroleum, petrochemical and natural gas industries

Special Notes

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Classified areas may vary depending on the location, conditions, equipment, and substances involved in any given situation. Users of this Standard should consult with the appropriate authorities having jurisdiction.

Users of this Standard should not rely exclusively on the information contained in this document. Sound business, sci- entific, engineering, and safety judgment should be used in employing the information contained herein.

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Information concerning safety and health risks and proper precautions with respect to particular materials and condi- tions should be obtained from the employer, the manufacturer or supplier of that material, or the material safety data sheet.

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Copyright © 2010 American Petroleum Institute

API Foreword

Nothing contained in any API publication is to be construed as granting any right, by implication or otherwise, for the manufacture, sale, or use of any method, apparatus, or product covered by letters patent. Neither should anything contained in the publication be construed as insuring anyone against liability for infringement of letters patent.

Shall: As used in a standard, "shall" denotes a minimum requirement in order to conform to the specification.

Should: As used in a standard, "should" denotes a recommendation or that which is advised but not required in order to conform to the specification.

This document was produced under API standardization procedures that ensure appropriate notification and participation in the developmental process and is designated as an API standard. Questions concerning the interpretation of the content of this publication or comments and questions concerning the procedures under which this publication was developed should be directed in writing to the Director of Standards, American Petroleum Institute, 1220 L Street, NW, Washington, DC 20005. Requests for permission to reproduce or translate all or any part of the material published herein should also be addressed to the director.

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Suggested revisions are invited and should be submitted to the Standards Department, API, 1220 L Street, NW, Washington, DC 20005, standards@api.org.

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Contents Page

API Foreword ii

Foreword v

Introduction vi

1. Scope 1

2. Normative references 1

3. Terms and definitions 4

4. General 10

   1. Unit responsibility 10

   2. Classification and designation 10

5. Requirements 18

   1. Units 18

   2. Statutory requirements 18

   3. Requirements 18

6. Basic design 19

   1. General 19

   2. Pump types 23

   3. Pressure casings 24

   4. Nozzles and pressure casing connections 27

   5. External nozzle forces and moments 30

   6. Rotors 37

   7. Wear rings and running clearances 38

   8. Mechanical shaft seals 39

   9. Dynamics 42

   10. Bearings and bearing housings 56

   11. Lubrication 61

   12. Materials 61

   13. Nameplates and rotation arrows 66

7. Accessories 67

   1. Drivers 67

   2. Couplings and guards 70

   3. Baseplates 71

   4. Instrumentation 74

   5. Piping and appurtenances 74

   6. Special tools 76

8. Inspection, testing, and preparation for shipment 76

   1. General 76

   2. Inspection 77

   3. Testing 79

   4. Preparation for shipment 86

9. Specific pump types 87

   1. Single-stage overhung pumps 87

   2. Between-bearings pumps (types BB1, BB2, BB3 and BB5) 88

   3. Vertically suspended pumps (types VS1 through VS7) 93

10. Vendor's data 99

    1. General 99

    2. Proposals 100

    3. Contract data 103

Annex A (informative) Specific speed and suction-specific speed 105

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Annex B (normative) Cooling water and lubrication system schematics 106

Annex C (normative) Hydraulic power recovery turbines 115

Annex D (normative) Standard baseplates 119

Annex E (informative) Inspector's checklist 121

Annex F (normative) Criteria for piping design 123

Annex G (informative) Materials class selection guidance 137

Annex H (normative) Materials and material specifications for pump parts 139

Annex I (normative) Lateral analysis 147

Annex J (normative) Determination of residual unbalance 154

Annex K (informative) Shaft stiffness and bearing system life 160

Annex L (informative) Vendor drawing and data requirements 166

Annex M (informative) Test data summary 175

Annex N (informative) Pump datasheets and electronic data exchange 179

Annex O (informative) API Regional Annex 201

Bibliography 202

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Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.

International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.

The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.

ISO 13709 was prepared by Technical Committee ISO/TC 115, Pumps, Subcommittee SC 3, Installation and special application, in collaboration with Technical Committee ISO/TC 67, Materials, equipment and offshore structures for petroleum, petrochemical and natural gas industries, SC 6, Processing equipment and systems.

This second edition cancels and replaces the first edition (ISO 13709:2003), which has been technically revised.

v

Introduction

It is necessary that users of this International Standard be aware that further or differing requirements can be needed for individual applications. This International Standard is not intended to inhibit a vendor from offering, or the purchaser from accepting, alternative equipment or engineering solutions for the individual application. This can be particularly appropriate where there is innovative or developing technology. Where an alternative is offered, it is necessary that the vendor identify any variations from this International Standard and provide details.

A bullet ( ) at the beginning of a clause or subclause indicates that either a decision is required or the purchaser is required to provide further information. It is necessary that this information should be indicated on data sheets or stated in the enquiry or purchase order (see examples in Annex N).

In this International Standard, where practical, US Customary, or other, units are included in parentheses for information.

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API Standard 610/ISO 13709

Centrifugal pumps for petroleum, petrochemical and natural gas industries

1. Scope

   
   

   This International Standard specifies requirements for centrifugal pumps, including pumps running in reverse as hydraulic power recovery turbines, for use in petroleum, petrochemical and gas industry process services.

   
   

   This International Standard is applicable to overhung pumps, between-bearings pumps and vertically suspended pumps (see Table 1). Clause 9 provides requirements applicable to specific types of pumps. All other clauses of this International Standard are applicable to all pump types. Illustrations are provided of the various specific pump types and the designations assigned to each specific type.

   
   

   Relevant industry operating experience suggests pumps produced to this International Standard are cost effective when pumping liquids at conditions exceeding any one of the following:

   
   

   discharge pressure (gauge) 1 900 kPa (275 psi; 19,0 bar)

   
   

   suction pressure (gauge) 500 kPa (75 psi; 5,0 bar)

   
   

   pumping temperature 150 °C (300 °F)

   
   

   rotative speed 3 600 r/min

   
   

   rated total head 120 m (400 ft) impeller diameter, overhung pumps 330 mm (13 in)

   NOTE For sealless pumps, reference can be made to API Std 685. For heavy duty pump applications in industries other than petroleum, petrochemical and gas processing, reference can be made to ISO 9905.

   
   

2. Normative references

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

ISO 7-1, Pipe threads where pressure-tight joints are made on the threads — Part 1: Dimensions, tolerances and designation

ISO 228-1, Pipe threads where pressure-tight joints are not made on the threads — Part 1: Dimensions, tolerances and designation

ISO 261, ISO general purpose metric screw threads — General plan

ISO 262, ISO general purpose metric screw threads — Selected sizes for screws, bolts and nuts

ISO 281:2007, Rolling bearings — Dynamic load ratings and rating life

ISO 286 (all parts), ISO system of limits and fits

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