DS-information

DS/CEN/TR 13931

1. udgave

2009-02-19

Pumper – Rotodynamiske pumper –

Kræfter og momenter på flanger – Centrifugalpumper samt pumper med blandet og aksialt flow – Horisontal og vertikal aksel

Rotodynamic pumps – Forces and moments on flanges – Centrifugal, mixed flow and axial flow horizontal and vertical shafts pumps

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• standard, der er udarbejdet på nationalt niveau, eller som er baseret på et andet lands nationale standard, eller • standard, der er udarbejdet på internationalt og/eller europæisk niveau, og som har fået status som dansk standard

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teknisk rapport, eller • europæisk præstandard DS-håndbog • samling af standarder, eventuelt suppleret med informativt materiale

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DS-betegnelse Alle DS-publikationers betegnelse begynder med DS efterfulgt af et eller flere præfikser og et nr., fx DS 383, DS/EN 5414 osv. Hvis der efter nr. er angivet et A eller Cor, betyder det, enten at det er et tillæg eller et rettelsesblad til hovedstandarden, eller at det er indført i hovedstandarden. DS-betegnelse angives på forsiden. Overensstemmelse med anden publikation: Overensstemmelse kan enten være IDT, EQV, NEQ eller MOD

• IDT: Når publikationen er identisk med en given publikation. • EQV: Når publikationen teknisk er i overensstemmelse med en given publikation, men

præsentationen er ændret. • NEQ: Når publikationen teknisk eller præsentationsmæssigt ikke er i overensstemmelse med en

given standard, men udarbejdet på baggrund af denne. • MOD: Når publikationen er modificeret i forhold til en given publikation.

DS/CEN/TR 13931 København DS projekt: M229214 ICS: 23.080 Første del af denne publikations betegnelse er: DS/CEN/TR, hvilket betyder, at det er en europæisk teknisk rapport, der har status som DS-information. Denne publikations overensstemmelse er: IDT med: CEN TR 13931:2009. DS-publikationen er på engelsk. Denne publikation erstatter: DS/CEN/CR 13931:2000.

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TECHNICAL REPORT

RAPPORT TECHNIQUE

TECHNISCHER BERICHT

CEN/TR 13931

January 2009

ICS 23.080 Supersedes CR 13931:2000

English Version

Rotodynamic pumps - Forces and moments on flanges -Centrifugal, mixed flow and axial flow horizontal and vertical

shafts pumps

Pompes rotodynamiques - Forces et moments applicablesaux brides - Pompes centrifuges, hélico-centrifuges et

hélices à axes horizontal et vertical

Rotodynamische Pumpen - Zulässige Flanschenkräfte undMomente - Kreiselpumpen, Halbaxialaufpumpen undAxialpumpen mit horizontaler und verticaler Achse

This Technical Report was approved by CEN on 13 October 2008. It has been drawn up by the Technical Committee CEN/TC 197.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATIONC O M I T É E U R O P É E N D E N O R M A LI S A T I O NEUR OP ÄIS C HES KOM ITEE FÜR NOR M UNG

Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2009 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.

Ref. No. CEN/TR 13931:2009: E

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CEN/TR 13931:2009 (E)

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Contents Page

1 Scope .............................................................................................................................................................. 4

2 Normative references .................................................................................................................................... 4

3 Responsibilities of manufacturer and purchaser ....................................................................................... 43.1 General ............................................................................................................................................................ 43.2 Design considerations .................................................................................................................................. 4

4 Criteria adopted in setting limiting forces and moments .......................................................................... 54.1 Shaft-end movement ..................................................................................................................................... 54.2 Distortion of the pump casing ...................................................................................................................... 54.3 Validity of force and moment values – Effects of materials and temperature ........................................ 5

5 Horizontal shaft pumps ................................................................................................................................. 65.1 Definition of pump families and summary of features ............................................................................... 65.2 Calculation of maximum permissible forces and moments .................................................................... 115.3 Maximum permissible forces and moments on standardised or modular pump families ................... 145.3.1 General .......................................................................................................................................................... 145.3.2 Composition of forces and moments ........................................................................................................ 145.3.3 Possibility of adapting the tables to other pumps of similar design ..................................................... 145.4 Other horizontal pump families .................................................................................................................. 145.5 Practical considerations for horizontal shaft pumps ............................................................................... 14

6 Vertical shaft pumps ................................................................................................................................... 156.1 Definition of pump families and summary of features ............................................................................. 156.1.1 Installation types.......................................................................................................................................... 156.1.2 Position(s) of flange(s) ................................................................................................................................ 166.2 Calculation of maximum permissible forces and moments .................................................................... 196.3 Maximum permissible forces and moments on pump flanges ............................................................... 216.3.1 General .......................................................................................................................................................... 216.3.2 Suspended shaft pumps generally used for transporting water ("for water") ...................................... 216.3.3 "In line" pumps ............................................................................................................................................ 226.4 Practical considerations for vertical shaft pumps ................................................................................... 22

Annex A (informative) Horizontal shaft pumps - Calculation of forces and moments for reinforced and/or concrete mountings for families 2, 3.B, 3.C, 5.A, 5.B, 6, 7 and 8 ................................................ 23

Annex B (informative) Specifications relating to additional possibilities ......................................................... 24B.1 General .......................................................................................................................................................... 24B.2 Horizontal pumps only ................................................................................................................................ 24B.2.1 Pump stopped .............................................................................................................................................. 24B.2.2 Reinforced and/or concrete mounting ...................................................................................................... 24B.3 Horizontal and vertical pumps ................................................................................................................... 27B.3.1 Prestressing on the pipework .................................................................................................................... 27B.3.2 Weighting or compensation formula ......................................................................................................... 27B.3.3 Limit of accumulation of possibilities ....................................................................................................... 28

Bibliography .............................................................................................................................................................. 29

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CEN/TR 13931:2009 (E)

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Foreword

This document (CEN/TR 13931:2009) has been prepared by Technical Committee CEN/TC 197 “Pumps”, the secretariat of which is held by AFNOR.

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

This document supersedes CR 13931:2000.

The pumps families are numbered sequentially, leaving room for the inclusion of additional types if required at a later date:

horizontal shaft pumps: N° 1 to 81;

vertical shaft pumps: N° 20 to 361.

The pump families are described and illustrated in Tables 2 and 5.

Annexes A and B are for information only.

1 Numbers 9 to 19 are reserved for potential new families of pumps.

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CEN/TR 13931:2009 (E)

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1 Scope

This CEN Technical Report provides information for the calculation of maximum permissible forces and moments allowed on the flanges of various types of horizontal and vertical shaft rotodynamic pumps, caused by the reaction to pipework that is rigidly connected to the installation. This document does not take into account the effect of any elastic or deformable linkages, such as bellows, elastic joints, self butting sliding joints, etc.

This CEN Technical Report is not applicable to multistage monobloc pumps, whose outlets are remote from the installation plane, or to horizontal shaft pumps mounted vertically for installation reasons, such as, fixing to a vertical wall.

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.

EN 22858, End-suction centrifugal pumps (rating 16 bar) - Designation, nominal duty point and dimensions (ISO 2858:1975)

EN ISO 5199:2002, Technical specifications for centrifugal pumps - Class II (ISO 5199:2002)

API 610, Centrifugal pumps for general refinery service

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