EN ISO 3661:2010
(Main)End-suction centrifugal pumps - Baseplate and installation dimensions (ISO 3661:1977)
End-suction centrifugal pumps - Baseplate and installation dimensions (ISO 3661:1977)
Specifies basic dimensions and gives alternative numbers and locations of baseplate fixing holes to suit individual installations. Covers the baseplate numbers from 2 to 9. The data given are intended primarily for use with pumps in accordance with ISO 2858, coupled to foot-mounted electric motors for installation on a foundation.
Kreiselpumpen mit axialem Eintritt - Grundplatten- und Montagemaße (ISO 3661:1977)
Diese Internationale Norm legt die grundlegenden Grundplatten- und Einbau-Maße für Kreiselpumpen mit
axialem Eintritt fest. Für den individuellen Einbau sind alternativ Anzahl und Lage für Grundplatten-
Befestigungs-Löcher angegeben.
Pompes centrifuges à aspiration en bout - Dimensions relatives aux socles et à l'installation (ISO 3661:1977)
La présente Norme Internationale fixe les dimensions fondamentales relatives aux socles et à l'installation des pompes centrifuges à aspiration en bout. Des variantes sont données pour le nombre et l'emplacement des trous de fixation des socles pouvant convenir à des installations particulières.
Les dimensions et autres informations données dans la présente Norme Internationale sont principalement prévues pour les pompes centrifuges conformes à l'ISO 2858, couplées avec des moteurs électriques montés sur pied pour installation sur socle. La présente Norme Internationale peut, le cas échéant, être utilisée pour d'autres types de pompes.
Sesalna centrifugalna črpalka - Mere osnovne plošče in vgradne mere (ISO 3661:1977)
Ta mednarodni standard določa osnovne mere osnovne plošče in vgradne mere za sesalne centrifugalne črpalke. Navedena so alternativna števila in lokacije pritrdilnih lukenj za osnovne plošče, ki ustrezajo posameznim vgradnjam.
General Information
- Status
- Published
- Publication Date
- 21-Dec-2010
- Withdrawal Date
- 29-Jun-2011
- Technical Committee
- CEN/TC 197 - Pumps
- Drafting Committee
- CEN/TC 197/SC 4/WG 1 - Circulation pumps
- Current Stage
- 6060 - Definitive text made available (DAV) - Publishing
- Start Date
- 22-Dec-2010
- Due Date
- 10-Nov-2011
- Completion Date
- 22-Dec-2010
Relations
- Effective Date
- 25-Dec-2010
Overview
EN ISO 3661:2010 (ISO 3661:1977 adopted by CEN) specifies basic baseplate and installation dimensions for end‑suction centrifugal pumps. The standard covers baseplate reference numbers 2–9 and gives alternative numbers and locations for baseplate fixing holes to suit individual installations. It is intended primarily for pumps manufactured to ISO 2858 and for pumps coupled to foot‑mounted electric motors for foundation mounting.
This European adoption supersedes EN 23661:1993 and preserves the original ISO text while aligning national implementations across CEN member states. The document is especially relevant to pump manufacturers, motor suppliers, system integrators and installation engineers who require consistent mounting and motor‑coupling interfaces.
Key Topics
- Scope and field of application: Baseplate and installation dimensions for end‑suction centrifugal pumps, mainly for use with ISO 2858 pumps coupled to foot‑mounted motors.
- Baseplate reference numbers: Standardised reference numbers (2–9) for selecting appropriate baseplate sizes and working surfaces.
- Fixing holes and locations: Alternative numbers and locations for baseplate fixing holes (e.g., configurations with three or five holes) to accommodate different installation practices.
- Installation limits: Maximum permissible baseplate heights and guidance on selecting dimensions from the provided tables and figures.
- Compatibility guidance: Relationship to motor frame numbers and references to related IEC/ISO publications for electrical machine and pump dimensions.
Applications
EN ISO 3661:2010 provides practical value across the pump supply chain and installation projects:
- Manufacturer specification: Use the standard to define baseplate layouts that ensure interchangeability between pump models and motor frames.
- System design: Simplifies foundation design and alignment processes by providing standardised installation dimensions and mounting hole options.
- Procurement and compatibility checks: Helps procurement teams verify that pumps, motors and baseplates will couple correctly on site, reducing field modifications.
- Maintenance and retrofits: Facilitates replacement of pumps or motors with minimal foundation or baseplate alteration when products conform to the standard.
Key practical benefits include improved interchangeability, reduced installation time, clearer supplier requirements, and fewer site adjustments during coupling and alignment.
Related Standards
- ISO 2858: End‑suction centrifugal pumps - designation, nominal duty point and dimensions (primary reference for pump sizes and designation used in EN ISO 3661).
- IEC 60072‑1 (formerly IEC Publication 72): Dimensions and output ratings for rotating electrical machines - relevant for motor frame and flange interface compatibility.
For implementers, consult the figures and tables in EN ISO 3661:2010 for exact selection procedures and hole‑location options. The standard's tables and figure(s) provide the definitive data for baseplate numbers, working surface dimensions and recommended installation dimensions.
Frequently Asked Questions
EN ISO 3661:2010 is a standard published by the European Committee for Standardization (CEN). Its full title is "End-suction centrifugal pumps - Baseplate and installation dimensions (ISO 3661:1977)". This standard covers: Specifies basic dimensions and gives alternative numbers and locations of baseplate fixing holes to suit individual installations. Covers the baseplate numbers from 2 to 9. The data given are intended primarily for use with pumps in accordance with ISO 2858, coupled to foot-mounted electric motors for installation on a foundation.
Specifies basic dimensions and gives alternative numbers and locations of baseplate fixing holes to suit individual installations. Covers the baseplate numbers from 2 to 9. The data given are intended primarily for use with pumps in accordance with ISO 2858, coupled to foot-mounted electric motors for installation on a foundation.
EN ISO 3661:2010 is classified under the following ICS (International Classification for Standards) categories: 23.080 - Pumps. The ICS classification helps identify the subject area and facilitates finding related standards.
EN ISO 3661:2010 has the following relationships with other standards: It is inter standard links to EN 23661:1993. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN ISO 3661:2010 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2012
1DGRPHãþD
SIST EN 23661:2000
6HVDOQDFHQWULIXJDOQDþUSDOND0HUHRVQRYQHSORãþHLQYJUDGQHPHUH ,62
End-suction centrifugal pumps - Baseplate and installation dimensions (ISO 3661:1977)
Saugende Kreiselpumpen - Grundplatten- und Montagemaße (ISO 3661:1977)
Pompes centrifuges à aspiration en bout - Dimensions relatives aux socles et à
l'installation (ISO 3661:1977)
Ta slovenski standard je istoveten z: EN ISO 3661:2010
ICS:
23.080 ýUSDONH Pumps
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN ISO 3661
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2010
ICS 23.080 Supersedes EN 23661:1993
English Version
End-suction centrifugal pumps - Baseplate and installation
dimensions (ISO 3661:1977)
Pompes centrifuges à aspiration en bout - Dimensions Saugende Kreiselpumpen - Grundplatten- und
relatives aux socles et à l'installation (ISO 3661:1977) Montagemaße (ISO 3661:1977)
This European Standard was approved by CEN on 4 December 2010.
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 CEN-CENELEC Management Centre 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 CEN-CENELEC Management Centre has the same
status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, 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 STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2010 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 3661:2010: E
worldwide for CEN national Members.
Contents Page
Foreword .3
Foreword
The text of ISO 3661:1977 has been prepared by Technical Committee ISO/TC 115 “Pumps” of the
International Organization for Standardization (ISO) and has been taken over as EN ISO 3661:2010 by
Technical Committee CEN/TC 197 “Pumps” the secretariat of which is held by AFNOR.
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 June 2011, and conflicting national standards shall be withdrawn at
the latest by June 2011.
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 EN 23661:1993.
This document replaces and cancels the EN 23661 "End-suction centrifugal pumps - Baseplate and
installation dimensions (ISO 3661:1977) - German version EN 23661:1993": its content is identical to the EN
23661, only the numbering of the standard has been changed, to be consistent with the ISO collection
numbering.
Attention is drawn on the fact that some references cited in the standard have evolved:
ISO/R 273 replaced by ISO 273(all parts).
IEC Publication 72 replaced by IEC 60072-1.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, 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 the United Kingdom.
Endorsement notice
The text of ISO 3661:1977 has been approved by CEN as a EN ISO 3661:2010 without any modification.
INTERNATIONAL STANDARD.
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION l MEXAYHAPO,ljHAJl OPI-AHW3AUMR l-f0 CTAHAAPTM3ALWWi~ORGANISATiON INTERNATIONALE DE NORMALISATION
End-suction centrifugal Pumps - Baseplate and installation
dimensions
Pompes ten trifuges 2 aspiration en bout -
Dimensions relatives aux socles et a I’instaIIation
First edition - 1977-02-15
UDC 621.671 Ref. No. ISO 36614977 (E)
Descriptors : centrifugal Pumps, specifications, holders, installing, dimensions.
Price based on 3 pages
FOREWORD
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