SIST EN ISO 15783:2004

Seal-less rotodynamic pumps - Class II - Specification (ISO 15783:2002)

This standard covers the requirements for sealless rotodynamic pumps that are driven with permanent magnet coumpling, or with canned motor and are mainly used in chemical process, water treatment and petrochemical industries.

Wellendichtungslose Kreiselpumpen - Klasse ll - Technische Anforderungen (ISO 15783:2002)

1.1   Diese Norm legt die Anforderungen der Klasse II für wellendichtungslose Kreiselpumpen, die mit Permanentmagnetkupplung (Magnetkupplungspumpen), oder mit Spaltrohrmotor angetrieben werden, fest, die vornehmlich in der chemischen Prozesstechnik, der Wasserbehandlung und der petrochemischen Industrie eingesetzt werden. Ihre Verwendung kann durch den Raumbedarf, das Geräusch, die Umgebungsbedingungen und die Sicherheitsvorschriften bestimmt sein.
Wellendichtungslose Pumpen sind Pumpen, bei denen ein innerer Rotor vollständig in einen Druckbehälter, der das Fördergut beinhaltet, eingetaucht ist. Der Druckbehälter oder die erste Schutzhülle wird durch statische Dichtungen wie z. B. Flachdichtungen oder O-Ringe abgedichtet.
1.2   Pumpen werden in der Regel mit einer anerkannten genormten Spezifikation (z. B. ISO 5199, Explosionsschutz, Elektromagnetische Verträglichkeit) übereinstimmen, es sei denn, besondere Bestimmungen sind in dieser Norm festgelegt.
1.3   Diese Norm beinhaltet Konstruktionsmerkmale im Zusammenhang mit der Installation, der Wartung sowie der Betriebssicherheit von Pumpen und legt die Merkmale fest, die zwischen Besteller und Hersteller/Lieferer zu verein-baren sind.
1.4   Wenn die Übereinstimmung mit dieser Norm und eine bestimmte Ausführung gefordert ist, können alternative Ausführungen angeboten werden, wenn sie den Festlegungen dieser Norm genügen und die Alternativen im einzelnen beschrieben werden. Es können auch Pumpen angeboten werden, die nicht mit allen Anforderungen dieser Norm übereinstimmen, vorausgesetzt, dass die Abweichungen vollständig ausgewiesen und beschrieben werden.
Falls sich aus den Unterlagen Widersprüche hinsichtlich der technischen Anforderungen ergeben, gelten die Unterlagen in nachstehender Reihenfolge:
a) Bestellung (oder Anfrage, falls kein Auftrag erteilt worden ist) (siehe Anhänge D und E);
b) Datenblatt (siehe Anhang A), oder technisches Beiblatt oder Spezifikation;
c) Diese Norm;
d) Andere Normen.

Pompes rotodynamiques sans dispositif d'étanchéité d'arbre - Classe II - Spécifications (ISO 15783:2002)

1.1 La présente Norme internationale couvre les exigences concernant les pompes rotodynamiques sans
dispositif d'étanchéité d'arbre entraînées par un accouplement magnétique à aimant permanent (pompes à
entraînement magnétique), ou par un moteur chemisé à rotor noyé, et qui sont principalement utilisées dans les
processus chimiques, le traitement de l'eau et les industries pétrochimiques. Leur utilisation peut être dictée par
l'espace, le bruit, l'environnement ou les réglementations en matière de sécurité.
Les pompes sans dispositif d'étanchéité d'arbre sont des pompes dont le rotor est complètement isolé dans une
enceinte sous pression contenant le liquide pompé. L'enceinte sous pression, ou dispositif de confinement
primaire, est étanchée statiquement par des joints plats ou toriques.
1.2 D'une manière générale, et sauf exigences particulières spécifiées dans la présente Norme internationale,
les pompes sont censées être conformes aux spécifications des normes reconnues (par exemple ISO 5199,
protection contre les explosions, compatibilité électromagnétique).
1.3 La présente Norme internationale comporte des particularités de conception qui ont trait à l'installation, à la
maintenance et à la sécurité opérationnelle des pompes et définit les éléments qui doivent faire l'objet d'un accord
entre l'acheteur et le fabricant/fournisseur.
1.4 Lorsque la conformité à la présente Norme internationale a été demandée et que celle-ci fait appel à une
caractéristique spécifique de conception, d'autres conceptions peuvent être proposées, à condition qu'elles
répondent à l'objectif de la présente Norme internationale et qu'elles soient décrites en détail. Des pompes qui ne
sont pas conformes à toutes les exigences de la présente Norme internationale peuvent également être
proposées, à condition que les écarts soient complètement identifiés et décrits.
Lorsque des documents comprennent des exigences contradictoires, il convient de les appliquer dans l'ordre de
préséance suivant:
a) commande (ou appel d'offres, si la commande n'est pas passée), voir les annexes D et E;
b) fiche technique (voir l'annexe A) ou spécification technique;
c) la présente Norme internationale;
d) d'autres normes.

Centrifugalne črpalke brez tesnila (hermetične črpalke) – Razred II – Specifikacija (ISO 15783:2002)

General Information

• Status: Published
• Publication Date: 31-Aug-2004
• ICS: 23.080 - Pumps
• Technical Committee: SS SPL - Technical Board for the general field
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Sep-2004
• Due Date: 01-Sep-2004
• Completion Date: 01-Sep-2004
• Ref Project: EN ISO 15783:2003 - Seal-less rotodynamic pumps - Class II - Specification (ISO 15783:2002)

Relations

• Amended By: SIST EN ISO 15783:2004/A1:2009 - Seal-less rotodynamic pumps - Class II - Specification - Amendment 1 (ISO 15783:2002/Amd 1:2008)
• Effective Date: 01-Jan-2009

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 15783:2004
01-september-2004

&HQWULIXJDOQHþUSDONHEUH]WHVQLODKHUPHWLþQHþUSDONH±5D]UHG,,±6SHFLILNDFLMD

,62
Seal-less rotodynamic pumps - Class II - Specification (ISO 15783:2002)
Wellendichtungslose Kreiselpumpen - Klasse ll - Technische Anforderungen (ISO
15783:2002)

Pompes rotodynamiques sans dispositif d'étanchéité d'arbre - Classe II - Spécifications

(ISO 15783:2002)
Ta slovenski standard je istoveten z: EN ISO 15783:2003
ICS:
23.080 ýUSDONH Pumps
SIST EN ISO 15783:2004 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 15783:2004
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SIST EN ISO 15783:2004
EUROPEAN STANDARD
EN ISO 15783
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2003
ICS 23.080
English version
Seal-less rotodynamic pumps - Class II - Specification (ISO
15783:2002)
Pompes rotodynamiques sans dispositif d'étanchéité
d'arbre - Classe II - Spécifications (ISO 15783:2002)
This European Standard was approved by CEN on 9 January 2003.

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 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 Management Centre has the same status as the official

versions.

CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,

Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovak Republic, Spain, Sweden, Switzerland and

United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels

© 2003 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 15783:2003 E

worldwide for CEN national Members.
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SIST EN ISO 15783:2004
EN ISO 15783:2003 (E)
Foreword

The text of ISO 15783:2002 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

15783:2003 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 September 2003, and conflicting national

standards shall be withdrawn at the latest by September 2003.

According to the CEN/CENELEC Internal Regulations, the national standards organizations of

the following countries are bound to implement this European Standard: Austria, Belgium, Czech

Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,

Luxembourg, Malta, Netherlands, Norway, Portugal, Slovak Republic, Spain, Sweden,

Switzerland and the United Kingdom.
Endorsement notice

The text of ISO 15783:2002 has been approved by CEN as EN ISO 15783:2003 without any

modifications.

NOTE Normative references to International Standards are listed in Annex ZA (normative).

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SIST EN ISO 15783:2004
EN ISO 15783:2003 (E)
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).

NOTE Where an International Publication has been modified by common modifications, indicated

by (mod.), the relevant EN/HD applies.
Publication Year Title EN Year
ISO 3274 1996 Geometrical product specifications EN ISO 3274 1997
(GPS) - Surface texture: Profile
method - Nominal characteristics
of contact (stylus)
ISO 3744 1994 Acoustics - Determination of sound EN ISO 3744 1995
power levels of noise sources
using sound pressure -
Engineering method in an
essentially free field over a
reflecting plane
ISO 3746 1995 Acoustics - Determination of sound EN ISO 3746 1995
power levels of noise sources
using sound pressure - Survey
method using an enveloping
measurement surface over a
reflecting plane
ISO 5199 1986 Technical specifications for EN 25199 1992
centrifugal pumps - Class II
ISO 9906 1999 Rotodynamic pumps - Hydraulic EN ISO 9906 1999
performance acceptance tests -
Grades 1 and 2
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SIST EN ISO 15783:2004
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SIST EN ISO 15783:2004
INTERNATIONAL ISO
STANDARD 15783
First edition
2002-02-01
Seal-less rotodynamic pumps — Class II —
Specification
Pompes rotodynamiques sans dispositif d'étanchéité d'arbre — Classe II —
Spécifications
Reference number
ISO 15783:2002(E)
ISO 2002
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SIST EN ISO 15783:2004
ISO 15783:2002(E)
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© ISO 2002

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ii © ISO 2002 – All rights reserved
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SIST EN ISO 15783:2004
ISO 15783:2002(E)
Contents Page

Foreword......................................................................................................................................................................v

Introduction................................................................................................................................................................vi

1 Scope ..............................................................................................................................................................1

2 Normative references....................................................................................................................................1

3 Terms and definitions ...................................................................................................................................2

4 Design.............................................................................................................................................................7

4.1 General............................................................................................................................................................7

4.2 Prime movers .................................................................................................................................................7

4.3 Critical speed, balancing and vibrations.....................................................................................................9

4.4 Pressure-containing parts ..........................................................................................................................10

4.5 Branches, nozzles and miscellaneous connections................................................................................13

4.6 External forces and moments on flanges (inlet and outlet)....................................................................14

4.7 Branch (nozzle) flanges ..............................................................................................................................14

4.8 Impellers .......................................................................................................................................................14

4.9 Wear rings or equivalent components ......................................................................................................14

4.10 Running clearance.......................................................................................................................................14

4.11 Shafts............................................................................................................................................................15

4.12 Bearings .......................................................................................................................................................15

4.13 Circulation flow............................................................................................................................................16

4.14 Nameplates...................................................................................................................................................17

4.15 Direction of rotation ....................................................................................................................................17

4.16 Couplings for magnetic drive pumps........................................................................................................17

4.17 Baseplate......................................................................................................................................................18

4.18 Monitoring ....................................................................................................................................................18

5 Materials .......................................................................................................................................................19

5.1 Selection of materials..................................................................................................................................19

5.2 Material composition and quality...............................................................................................................19

5.3 Repairs..........................................................................................................................................................19

6 Testing ..........................................................................................................................................................19

6.1 General..........................................................................................................................................................19

6.2 Material tests................................................................................................................................................20

6.3 Pump test and inspection...........................................................................................................................20

7 Preparation for despatch ............................................................................................................................23

7.1 Surface protection.......................................................................................................................................23

7.2 Securing of rotating parts for transport....................................................................................................23

7.3 Openings ......................................................................................................................................................23

7.4 Pipes and auxiliaries ...................................................................................................................................23

7.5 Identification ................................................................................................................................................23

8 Information for use ......................................................................................................................................24

Annex A (normative) Data sheet for magnetic drive pumps and canned motor pumps ...................................25

Annex B (informative) External forces and moments on flanges ........................................................................30

Annex C (informative) Enquiry, proposal and purchase order.............................................................................31

Annex D (informative) Documentation after purchase order................................................................................32

Annex E (informative) Typical circulation piping plans and characteristics for canned motor pumps

and magnetic drive pumps .........................................................................................................................33

© ISO 2002 – All rights reserved iii
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SIST EN ISO 15783:2004
ISO 15783:2002(E)

Annex F (informative) Internationally accepted materials for pump parts..........................................................39

Annex G (informative) Checklist ..............................................................................................................................42

Bibliography ..............................................................................................................................................................44

iv © ISO 2002 – All rights reserved
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SIST EN ISO 15783:2004
ISO 15783:2002(E)
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 3.

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 International Standard may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights.

ISO 15783 was prepared by Technical Committee ISO/TC 115, Pumps, Subcommittee SC 1, Dimensions and

technical specifications of pumps.

Annex A forms a normative part of this International Standard. Annexes B, C, D, E, F and G are for information

only.
© ISO 2002 – All rights reserved v
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SIST EN ISO 15783:2004
ISO 15783:2002(E)
Introduction

This International Standard is the first of a series dealing with technical specifications for seal-less pumps; they

correspond to two classes of technical specifications, Classes I and II, of which Class I is the more severe

requirements.

Where a decision may be required by the purchaser, or agreement is required between the purchaser and

manufacturer/supplier, the relevant text is highlighted with •••• and is listed in annex G.

vi © ISO 2002 – All rights reserved
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SIST EN ISO 15783:2004
INTERNATIONAL STANDARD ISO 15783:2002(E)
Seal-less rotodynamic pumps — Class II — Specification
1 Scope

1.1 This International Standard specifies the requirements for seal-less rotodynamic pumps that are driven with

permanent magnet coupling (magnet drive pumps) or with canned motor, and which are mainly used in chemical

processes, water treatment and petrochemical industries. Their use can be dictated by space, noise, environment

or safety regulations.

Seal-less pumps are pumps where an inner rotor is completely contained in a pressure vessel holding the pumped

fluid. The pressure vessel or primary containment device is sealed by static seals such as gaskets or O-rings.

1.2 Pumps will normally conform to recognized standard specifications (e.g. ISO 5199, explosion protection,

electromagnetic compatibility), except where special requirements are specified herein.

1.3 This International Standard includes design features concerned with installation, maintenance and

operational safety of the pumps, and defines those items to be agreed upon between the purchaser and

manufacturer/supplier.

1.4 Where conformity to this International Standard has been requested and calls for a specific design feature,

alternative designs may be offered providing that they satisfy the intent of this International Standard and they are

described in detail. Pumps which do not conform with all requirements of this International Standard may also be

offered providing that the deviations are fully identified and described.

Whenever documents include contradictory requirements, they should be applied in the following sequence of

priority:
a) purchase order (or inquiry, if no order placed), see annexes D and E;
b) data sheet (see annex A) or technical sheet or specification;
c) this International Standard;
d) other standards.
2 Normative references

The following normative documents contain provisions which, through reference in this text, constitute provisions of

this International Standard. For dated references, subsequent amendments to, or revisions of, any of these

publications do not apply. However, parties to agreements based on this International Standard are encouraged to

investigate the possibility of applying the most recent editions of the normative documents indicated below. For

undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC

maintain registers of currently valid International Standards.
ISO 76, Rolling bearings — Static load ratings
ISO 281, Rolling bearings — Dynamic load ratings and rating life

ISO 3274, Geometrical Product Specifications (GPS) — Surface texture: Profile method — Nominal characteristics

of contact (stylus) instruments
© ISO 2002 – All rights reserved 1
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SIST EN ISO 15783:2004
ISO 15783:2002(E)

ISO 3744, Acoustics — Determination of sound power levels of noise sources using sound pressure —

Engineering method in an essentially free field over a reflecting plane

ISO 3746, Acoustics — Determination of sound power levels of noise sources using sound pressure — Survey

method using an enveloping measurement surface over a reflecting plane
ISO 5199, Technical specifications for centrifugal pumps — Class II
ISO 7005-1, Metallic flanges — Part 1: Steel flanges
ISO 7005-2, Metallic flanges — Part 2: Cast iron flanges
ISO 7005-3, Metallic flanges — Part 3: Copper alloy and composite flanges

ISO 9906, Rotodynamic pumps — Hydraulic performance acceptance tests — Grades 1 and 2

IEC 60034-1, Rotating electrical machines — Part 1: Rating and performance
EN 12162, Liquid pumps — Safety requirements — Procedure for hydrostatic testing
3 Terms and definitions

For the purposes of this International Standard, the following terms and definitions apply.

3.1
magnetic drive pump
MDP

pump in which the shaft power of the drive is transferred to the impeller of the pump by means of a permanent

magnetic field, which passes through a containment barrier (shell) to an inner rotor having permanent magnets or

an induction device
3.2
canned motor pump
CMP

pump in which the stator of an electric motor is separated from the rotor by a sealed containment barrier (liner)

NOTE 1 The rotor runs in the liquid being pumped or in another liquid.
NOTE 2 The shaft power is transmitted by means of an electromagnetic field.
3.3
seal-less rotodynamic pump

〈general〉 pump design in which the impeller shaft also carries the rotor of either a canned induction motor or a

synchronous or an asynchronous magnetic drive

NOTE The design does not use a dynamic shaft seal as a primary containment device. Static seals are the means used for

containing the fluid.
3.3.1
hydraulic end

that end of the pump which transfers mechanical energy into the liquid being pumped

3.3.2
power drive end

that end of the pump containing the magnetic coupling (MDP) or the motor (CMP) which provides the mechanical

energy necessary for the operation of the hydraulic end
2 © ISO 2002 – All rights reserved
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SIST EN ISO 15783:2004
ISO 15783:2002(E)
3.3.3
lubrication and cooling flow

flow necessary in a magnetic drive in the area between the inner magnet and the containment shell, or in a canned

motor between the rotor and the sleeve, for dissipation of the heat due to inherent eddy current losses in metallic

containment shells and frictional heat generation from bearings, and for lubrication

NOTE Internal pump bearings are lubricated and cooled by the pumped fluid or an external, compatible flushing fluid.

3.3.4
close coupled

〈MDP〉 coupling arrangement in which the motor is supplied with a flange adapter which mounts directly onto the

casing or body of the pump and in which the outer magnet ring is mounted onto the motor shaft

3.3.5
separately coupled

〈MDP〉 arrangement in which the motor and pump have separate mounting arrangements with the outer magnet

ring mounted on its own shaft, supported by rolling bearings, and connected to the motor shaft by means of a

flexible coupling
3.3.6
air gap

〈MDP〉 radial distance between the inner diameter (ID) of the outer magnet assembly and the outer diameter (OD)

of the containment shell
3.3.7
liquid gap
〈MDP〉 radial distance between the ID of the shell and the OD of the rotor sheath
3.3.8
liquid gap
〈CMP〉 radial distance between the ID of the liner and the OD of the rotor sheath
3.3.9
total gap
magnetic gap

〈MDP〉 radial distance between the ID of the outer magnets and the OD of the inner magnets/torque ring

3.3.10
total gap
magnetic gap

〈CMP〉 total distance between the ID of the stator laminations and the OD of the rotor lamination

3.3.11
radial load

〈MDP and CMP〉 load perpendicular to the pump shaft and drive shaft due to unbalanced hydraulic loading on the

impeller, mechanical and magnetic rotor unbalance, rotor assembly weight, and forces of the fluid circulating

through the drive
3.3.12
axial load

〈MDP〉 load in line with the pump shaft caused by hydraulic forces acting on the impeller shrouds and inner magnet

assembly
3.3.13
axial load

〈CMP〉 load in line with the pump shaft caused by hydraulic forces acting on the impeller shrouds and rotor

© ISO 2002 – All rights reserved 3
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SIST EN ISO 15783:2004
ISO 15783:2002(E)
3.3.14
hydraulic load balance

axial load equalization by means of an impeller design, impeller balance holes or vanes, or by balancing through

variable orifices in the drive section and hydraulics
3.4
starting torque

maximum net torque transmitted to the driven components during a hard (full voltage) start-up of the unit

NOTE It is affected by the inertia of the pump and motor rotors, the starting torque capacity of the motor and the power

versus speed requirements of the liquid end.
3.5
break-out torque

torque load applied to the drive shaft with the rotor locked at the point at which magnetic decoupling occurs

3.6
locked rotor torque
maximum torque that a motor will develop when prevented from turning
3.7
eddy currents

electrical currents generated in a conductive material when strong magnetic fields are rotated around it

3.8
magnetic coupling

device which transmits torque through the use of magnet(s) attached to the drive and driven shafts

3.9
inner magnet ring

rows of magnets operating within the containment shell, driven by the outer magnet ring

NOTE The inner magnet ring is mounted on the same rotating element as the pump impeller.

3.10
outer magnet ring

rows of permanent magnets securely fixed to a carrier, evenly spaced to provide a uniform magnetic field

NOTE The outer magnet ring, while rotating, transmits power through a containment shell, driving the inner magnet ring or

torque ring.
3.11 Eddy currents
3.11.1
eddy current drive

asynchronous magnetic coupling consisting of a permanent outer magnet ring and an inner torque ring containing a

network of conductive rods supported on a mild steel core

NOTE The rotating outer magnet ring generates eddy currents in the copper rods which convert the core to an

electromagnet. The electromagnet follows the rotating outer magnet ring but at a slightly slower speed due to slip.

3.11.2
eddy current loss
power loss resulting from eddy currents

NOTE The energy in these eddy currents is normally dissipated as heat due to the electrical resistance of the material.

3.11.3
torque ring

laminations and conductors mounted on the rotor in which electric currents are induced in an eddy current drive

4 © ISO 2002 – All rights reserved
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SIST EN ISO 15783:2004
ISO 15783:2002(E)
3.11.4
decouple

failure of a synchronous magnetic coupling to rotate synchronously, or the stall condition of an eddy current drive

3.11.5
slip

speed differential between the torque ring and outer magnet ring in an eddy current drive pump or between the

running speed and the synchronous speed in a CMP
3.11.6
demagnetization

permanent loss of magnetic attraction due to temperature or modification of the field

3.12 Containment
3.12.1
sheath

thin-walled hermetically sealed enclosure fitted to the inner rotor enclosing the inner magnet ring (MDP) or rotor

laminations (CMP)
See Figures 1 and 2.
3.12.2
shell

hermetically sealed enclosure fitted within the total-gap between the inner and outer magnet rings of an MDP and

which provides for the primary containment of the pumped liquid
See Figure 2.
3.12.3
liner

hermetically sealed enclosure fitted to the ID of the stator assembly of a CMP and providing for the primary

containment of the pumped liquid
See Figure 1.
3.12.4
secondary containment

backup pressure-containing system using static seals only to contain leakage in the event of failure of the primary

containment by shell or by liner, and including provisions to indicate a failure of the containment shell or liner

3.12.5
drive shaft
〈MDP〉 outer shaft of the magnetic drive coupling
3.12.6
secondary control

minimization of release of pumped liquid in the event of failure of the containment shell or stator liner

3.12.7
secondary control system

combination of devices (including, for example, a secondary pressure casing, a mechanical seal) that, in the event

of leakage from the containment shell or stator liner, minimizes and safely directs the release of pumped liquid

NOTE It includes provision(s) to indicate a failure of the containment shell or liner.

© ISO 2002 – All rights reserved 5
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SIST EN ISO 15783:2004
ISO 15783:2002(E)
Key
1 Hydraulic end 5 Stator assembly
2 Bearing 6 Rotor sheath
3 Liner 7 Rotor
4 Terminal box
Figure 1 — Example of a canned motor pump (CMP)
Key
1 Hydraulic end 6 Coupling
2 Bearing 7 Prime mover
3 Shell 8 Baseplate
4 Bearing housing 9 Sheath: inner magnet ring
5 Rolling bearing 10 Outer magnet ring
Figure 2 — Example of a magnetic drive pump (MDP)
6 © ISO 2002 – All rights reserved
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SIST EN ISO 15783:2004
ISO 15783:2002(E)
4 Design
4.1 General
4.1.1 Characteristic curve

The characteristic curve shall indicate the permitted operating range of the pump. Pumps should have a stable

characteristic curve. In addition, the characteristic curves for the smallest and largest impeller diameters shall also

...