Bsi bs en 03661 1993 (1999)

www bzfxw com BRITISH STANDARD BS EN 23661 1993 ISO 3661 1977 End suction centrifugal pumps — Baseplate and installation dimensions The European Standard EN 23661 1993 has the status of a British Stan[.]

BRITISH STANDARD BS EN

23661:1993 ISO 3661:1977

End-suction centrifugal

pumps —

Baseplate and

installation dimensions

The European Standard EN 23661:1993 has the status of a

British Standard

UDC 621.671

This British Standard, having

been prepared under the

direction of the Machinery and

Components Standards Policy

Committee, was published

under the authority of the

Standards Board and

comes into effect on

15 September 1993

© BSI 10-1999

The following BSI references

relate to the work on this

standard:

Committee reference MCE/6

Special announcement in

BSI News December 1992

ISBN 0 580 21909 7

Cooperating organizations

The European Committee for Standardization (CEN), under whose supervision this European Standard was prepared, comprises the national standards organizations of the following countries:

Amendments issued since publication

BS EN 23661:1993

Contents

Page

Annex ZA (normative) Normative references to international

ii © BSI 10-1999

National foreword

This British Standard has been prepared under the direction of the Machinery and Components Standards Policy Committee and is the English language

version of EN 23661:1993 End-suction centrifugal pumps — Baseplate and

installation dimensions, published by the European Committee for Standardization (CEN) It is identical with ISO 3661:1977, published by the International Organization for Standardization (ISO) EN 23661:1993 was produced as a result of international discussion in which the UK took an active part

A British Standard does not purport to include all the necessary provisions of a contract Users of British Standards are responsible for their correct application

Compliance with a British Standard does not of itself confer immunity from legal obligations.

Summary of pages

This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 6, an inside back cover and a back cover

This standard has been updated (see copyright date) and may have had amendments incorporated This will be indicated in the amendment table on the inside front cover

EUROPEAN STANDARD

NORME EUROPÉENNE

EUROPÄISCHE NORM

EN 23661 July 1993

UDC 621.671

Descriptors: Pumps, centrifugal pumps, specifications, supports, designation, installation, dimensions

English version End-suction centrifugal pumps — Baseplate and

installation dimensions

(ISO 3661:1977)

Pompes centrifuges à aspiration en bout —

Dimensions relatives aux socles à l’installation

(ISO 3661:1977)

Kreiselpumpen mit axialem Eintritt — Grundplatten- und Einbau-Maße (ISO 3661:1977)

This European Standard was approved by CEN on 1993-07-19 CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration

Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member

This European Standard exists in three official versions (English, French, German) A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions

CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom

CEN

European Committee for Standardization Comité Européen de Normalisation Europäisches Komitee für Normung

Central Secretariat: rue de Stassart 36, B-1050 Brussels

© 1993 Copyright reserved to CEN members

Ref No EN 23661:1993 E

© BSI 10-1999

2

Foreword

In 1990, ISO 3661:1977 End-suction centrifugal

pumps — Baseplate and installation dimensions

was submitted to the CEN Primary Questionnaire

procedure

Following the positive result of the CEN/CS

Proposal ISO 3661:1977 was submitted to the

Formal Vote

The result of the Formal Vote was positive

This European Standard shall be given the status of

a national standard, either by publication of an

identical text or by endorsement, at the latest by

January 1994, and conflicting national standards

shall be withdrawn at the latest by January 1994

According to the CEN/CENELEC Internal

Regulations, the following countries are bound to

implement this European Standard: Austria,

Belgium, Denmark, Finland, France, Germany,

Greece, Iceland, Ireland, Italy, Luxembourg,

Netherlands, Norway, Portugal, Spain, Sweden,

Switzerland and United Kingdom

Editorial modification

The text of clause 2, Normative references, is to be

replaced by:

NOTE Normative references to international publications are

listed in Annex ZA (normative).

EN 23661:1993

1 Scope

This International Standard specifies the

basic baseplate and installation dimensions for

end-suction centrifugal pumps Alternative

numbers and locations of baseplate fixing holes are

given to suit individual installations

2 Field of application

The dimensions and other data given in this

International Standard are intended primarily for

use with centrifugal pumps in accordance with

ISO 2858, coupled to foot-mounted electric motors

for installation on a foundation

Where suitable, this International Standard may be

used for other types of pump

3 References

ISO/R 273, Clearance holes for metric bolts.

ISO 2858, End-suction centrifugal pumps

(rating 16 bar) — Designation, nominal duty point and dimensions.

IEC Publication 72, Dimensions and output ratings

for rotating electrical machines — Frame numbers 56 to 400 and flange numbers F55 to F1080

4 Baseplate dimensions

The dimensions and the reference numbers of baseplates are given in Figure 1 and Table 1

5 Basic installation dimensions

The baseplate number appropriate to a given pump designation and the corresponding electric motor frame number are obtained from Table 2

The dimensions of the baseplate corresponding to this number are then obtained from Table 1 and the basic installation dimensions from the last four columns in Table 2

Table 1 — Baseplate reference numbers and dimensions Figure 1 — Basic baseplate and installation dimensions

Dimensions in millimetres

Baseplate No 2 3 4 5 6 7 8 9

L2 130 150 170 190 205 230 270 300

B1 270 300 340 380 430 480 530 600

B2 360 390 450 490 540 610 660 730

B3 320 350 400 440 490 550 600 670

hmax 125 125 125 140 160 180 200 200

a To ISO/R 273 (coarse series).

EN 23661:1993

Table 2 — Selection of baseplate number and installation dimensions

Dimensions in millimetres

Electric motor frame No.b Pump sizea 71 80 90 90 100 112 132 132 160 160 180 180 200 225 225 250 280 280 Basic installation

dimensions

See note 3

NOTE 1 hmax is the maximum permissible height of the baseplate, including packing that may be used between the baseplate and the pump or motor The actual height may be less.

NOTE 2 Hmax in Table 2 is the maximum permitted height The actual dimension H may be less The values Hmax given for each pump size take into account the maximum height for the greatest given baseplate number and the centre-line height of the pump or motor, whichever is the greater.

NOTE 3 On the left side of the bold line in Table 2, the centre-line height of the pump is the greater; on the right side the

centre-line height of the electric motor is the greater.

NOTE 4 Additional sub-structures, for example feet for free-standing installations, vibration dampers, are not included in the

dimensions Hmax and hmax.

NOTE 5 Figure 1 shows the locations for five holes (A, B, C, D and E).

Baseplates may have either four (A, B, C and D) or three (A, C and E) holes as determined by the pump manufacturer.

NOTE 6 In Table 1, the dimensions L1 and B1 are the length and the width respectively of the working surface and do not include casting slope.

a To ISO 2858.

b To IEC 72-1.

Annex ZA (normative)

Normative references to international publications with their relevant

European publications

This European Standard incorporates by dated or undated reference, provisions from other publications

These normative references are cited at the appropriate places in the text and the publications are listed

hereafter For dated references, subsequent amendments to or revisions of any of these publications apply

to this European Standard only when incorporated in it by amendment or revision For undated references

the latest edition of the publication referred to applies (including amendments)

Publication Year Title EN/HD Year

nominal duty point and dimensions 22858 1992

Part 1: Frame numbers 56 to 400 and flange numbers F55 to F1080 — —

BS EN 23661:1993

© BSI 10-1999

National annex NA (informative)

Committees responsible

The United Kingdom participation in the preparation of this European Standard was entrusted by the Machinery and Components Standards Policy Committee (MCE/-) to Technical Committee MCE/6, upon which the following bodies were represented:

Association of Consulting Engineers

Association of High Pressure Water Jetting Contractors

British Chemical Engineering Contractors’ Association

British Hydromechanics Reserach Association

British Pump Manufacturers’ Association

Department of Trade and Industry (National Engineering Laboratory)

Electricity Association

Energy Industries Council

Engineering Equipment and Materials Users’ Association

Health and Safety Executive

Society of Motor Manufacturers and Traders Ltd

UK Offshore Operators and Association Limited

Water Services Association of England and Wales

National annex NB (informative)

Cross-reference

Publication referred to Corresponding British Standard

389 Chiswick High Road

London

W4 4AL

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