SIST EN ISO 5199:2004

SLOVENSKI STANDARD
SIST EN ISO 5199:2004
01-september-2004
7HKQLþQHVSHFLILNDFLMH]DFHQWULIXJDOQHþUSDONH±5D]UHG,,,62
Technical specifications for centrifugal pumps - Class II (ISO 5199:2002)
Technische Anforderungen an Kreiselpumpen - Klasse II (ISO 5199:2002)
Spécifications techniques pour pompes centrifuges - Classe II (ISO 5199:2002)
Ta slovenski standard je istoveten z: EN ISO 5199:2002
ICS:
23.080 ýUSDONH Pumps
SIST EN ISO 5199:2004 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 5199:2004

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SIST EN ISO 5199:2004
EUROPEAN STANDARD
EN ISO 5199
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2002
ICS 22.080 Supersedes EN 25199:1992
English version
Technical specifications for centrifugal pumps - Class II (ISO
5199:2002)
Spécifications techniques pour pompes centrifuges - Technische Anforderungen an Kreiselpumpen - Klasse II
Classe II (ISO 5199:2002) (ISO 5199:2002)
This European Standard was approved by CEN on 11 March 2002.
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,
Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, 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
© 2002 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 5199:2002 E
worldwide for CEN national Members.

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SIST EN ISO 5199:2004
EN ISO 5199:2002 (E)
CORRECTED  2003-09-24
Foreword
This document (ISO 5199:2002) has been prepared by Technical Committee ISO/TC 115
"Pumps" in collaboration with 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 2002, and conflicting
national standards shall be withdrawn at the latest by September 2002.
This document supersedes EN 25199:1992.
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, Iceland, Ireland, Italy,
Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the
United Kingdom.
Endorsement notice
The text of ISO 5199:2002 has been approved by CEN as EN ISO 5199:2002 without any
modifications.
NOTE Normative references to International Standards are listed in Annex ZA (normative).
2

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SIST EN ISO 5199:2004
EN ISO 5199:2002 (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 2858 1975 End-suction centrifugal pumps EN 22858 1993
(rating 16 bar) - Designation,
nominal duty point and
dimensions
ISO 3274 1996 Geometrical product EN ISO 3274 1997
specifications (GPS) - Surface
texture: Profile method - Nominal
characteristics of contact (stylus)
instruments
ISO 3661 1977 End-suction centrifugal pumps - EN 23661 1993
Baseplate and installation
dimensions
ISO 3744 1994 Acoustics - Determination of EN ISO 3744 1995
sound 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 EN ISO 3746 1995
sound power levels of noise
sources using sound pressure -
Survey method using an
enveloping measurement surface
over a reflecting plane
ISO 9906 1999 Rotodynamic pumps - Hydraulic EN ISO 9906 1999
performance acceptance tests -
Grades 1 and 2
3

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SIST EN ISO 5199:2004
EN ISO 5199:2002 (E)
ISO 9614-1 1993 Acoustics - Determination of EN ISO 9614-1 1995
sound power levels of noise
sources using sound intensity -
Part 1: Measurements at discrete
points
ISO 9614-2 1996 Acoustics - Determination of EN ISO 9614-2 1996
sound power levels of noise
sources using sound intensity -
Part 2: Measurement by
scanning
4

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SIST EN ISO 5199:2004


INTERNATIONAL ISO
STANDARD 5199
Second edition
2002-03-15


Technical specifications for centrifugal
pumps — Class II
Spécifications techniques pour pompes centrifuges — Classe II





Reference number
ISO 5199:2002(E)
©
ISO 2002

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SIST EN ISO 5199:2004
ISO 5199:2002(E)
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©  ISO 2002
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic
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ii © ISO 2002 – All rights reserved

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SIST EN ISO 5199:2004
ISO 5199:2002(E)
Contents Page
Foreword.v
Introduction.vi
1 Scope .1
2 Normative references.1
3 Terms and definitions .2
4 Design.6
4.1 General.6
4.2 Prime movers .7
4.3 Critical speed, balance and vibration.8
4.4 Pressure-containing parts .9
4.5 Branches (nozzles) and miscellaneous connections .11
4.6 External forces and moments on flanges (inlet and outlet).11
4.7 Branch (nozzle) flanges .12
4.8 Impellers .12
4.9 Wear rings or equivalent components .12
4.10 Running clearance.12
4.11 Shafts and shaft sleeves.12
4.12 Bearings .14
4.13 Shaft sealing .15
4.14 Labelling .18
4.15 Couplings .18
4.16 Baseplate.19
4.17 Special tools.20
5 Materials .20
5.1 Selection of materials.20
5.2 Material composition and quality.20
5.3 Repairs.20
6 Shop inspection and tests.20
6.1 General.20
6.2 Inspection.20
6.3 Tests.21
6.4 Final inspection .22
7 Preparation for dispatch .22
7.1 Shaft seals.22
7.2 Preservation for transport and storage.22
7.3 Securing of rotating parts for transport.23
7.4 Openings .23
7.5 Piping and auxiliaries.23
7.6 Identification .23
Annex A (normative) Centrifugal pump — Data sheet .24
Annex B (informative) External forces and moments on branches.27
Annex C (normative) Enquiry, proposal, purchase order.40
Annex D (normative) Documentation after purchase order .41
Annex E (informative) Examples of seal arrangements .42
Annex F (informative) Piping arrangements for seals.45
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SIST EN ISO 5199:2004
ISO 5199:2002(E)
Annex G (informative) Designation examples using references from annexes E and F .53
Annex H (informative) Checklist .55
Bibliography .57


iv © ISO 2002 – All rights reserved

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SIST EN ISO 5199:2004
ISO 5199:2002(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.
International Standard ISO 5199 was prepared by Technical Committee ISO/TC 115, Pumps, Subcommittee SC 1,
Dimensions and technical specifications of pumps.
This second edition cancels and replaces the first edition (ISO 5199:1986), which has been technically revised.
Annexes A, C and D form a normative part of this International Standard. Annexes B, E, F, G and H are for
information only.
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SIST EN ISO 5199:2004
ISO 5199:2002(E)
Introduction
This International Standard is one of a set dealing with technical specifications of centrifugal pumps; they are
designated as Classes I, II and III. Class I comprises the most severe and Class III the least severe requirements.
The selection of the class to be used is in accordance with the technical requirements for the application for which
the pump is intended. The class chosen should be agreed between the purchaser and supplier. Furthermore,
additional safety requirements concerning the field of application should be taken into account.
However, it is not possible to standardize the class of technical requirements for centrifugal pumps for a certain
field of application, because each field of application comprises different requirements. All classes (I, II and III) can
be used in accordance to the different requirements of the pump application. So it may happen that pumps built in
accordance with Classes I, II and III may work beside one another in the one plant.
Further requirements covering specific applications or industries may be dealt with in separate standards.
Criteria for the selection of the required class of a pump for a certain application may include
— reliability,
— required operating life,
— operating conditions,
— environmental conditions, and
— local ambient conditions.
Cross-references in boldface and the checklist in annex H indicate where a decision may be required by the
purchaser, or where agreement is required between the purchaser and the manufacturer/supplier.

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SIST EN ISO 5199:2004
INTERNATIONAL STANDARD ISO 5199:2002(E)

Technical specifications for centrifugal pumps — Class II
1 Scope
1.1 This International Standard specifies the requirements for Class II centrifugal pumps of single-stage,
multistage, horizontal or vertical construction, with any drive and any installation for general application. Pumps
used in the chemical process industries (e.g. those conforming to ISO 2858) are typical of those covered by this
International Standard.
1.2 This International Standard includes design features concerned with installation, maintenance and safety for
these pumps including baseplate, couplings and auxiliary piping, but it does not specify any requirements for the
driver other than those related to its rated power output.
1.3 Where application of this International Standard has been called for and requires a specific design feature,
alternative designs may be offered which meet the intent of this International Standard provided that the alternative
is described in detail.
Pumps not complying with all the requirements of this International Standard may be offered for consideration
provided that all deviations are stated.
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 281-1, Rolling bearings — Dynamic load ratings and rating life — Part 1: Calculation methods
ISO 2858, End-suction centrifugal pumps (rating 16 bar) — Designation, nominal duty point and dimensions
ISO 3069, End-suction centrifugal pumps — Dimensions of cavities for mechanical seals and for soft packing
ISO 3274, Geometrical Product Specifications (GPS) — Surface texture: Profile method — Nominal characteristics
of contact (stylus) instruments
ISO 3661, End-suction centrifugal pumps — Baseplate and installation dimensions
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 7005-1, Metallic flanges — Part 1: Steel flanges
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SIST EN ISO 5199:2004
ISO 5199:2002(E)
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
ISO 9614-1, Acoustics — Determination of sound power levels of noise sources using sound intensity — Part 1:
Measurement at discrete points
ISO 9614-2, Acoustics — Determination of sound power levels of noise sources using sound intensity — Part 2:
Measurement by scanning
3 Terms and definitions
For the purposes of this International Standard, the following terms and definitions apply.
3.1
operating conditions
all parameters (e.g. operating temperature, operating pressure) determined by a given application and pumped
liquid
NOTE These parameters will influence the type of construction and construction materials.
3.2
allowable operating range
range of flows or heads at the specified operating conditions of the pump supplied as limited by cavitation, heating,
vibration, noise, shaft deflection and other similar criteria
NOTE The upper and lower limits of the range are denoted by maximum and minimum continuous flow.
3.3
rated conditions
conditions (driver excluded) that define the guarantee values necessary to meet all defined operating conditions,
taking into account any necessary margins
3.4
driver rated power output
greatest continuous driver power output permitted under defined conditions
3.5
basic design pressure
pressure derived from the permitted stresses at 20 °C of the material used for the pressure-containing parts
3.6
maximum allowable working pressure
pressure for a component on the basis of materials used and on the basis of calculation rules at the specified
operating temperature
3.7
rated inlet pressure
inlet pressure of the operating conditions at the guarantee point
3.8
rated outlet pressure
outlet pressure of the pump at the guarantee point with rated flow, rated speed, rated inlet pressure and density
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SIST EN ISO 5199:2004
ISO 5199:2002(E)
3.9
pressure/temperature limit
limiting pressure and temperature of a component at given design and material (see Figure 1)
3.10
corrosion allowance
that portion of the wall thickness of the parts wetted by the pumped liquid in excess of the theoretical thickness
required to withstand the pressure limits given at the most severe operating conditions
3.11
maximum allowable continuous speed
highest speed at which the manufacturer will permit continuous operation
3.12
trip speed
speed at which the independent emergency overspeed devices operate to shut down a prime mover
3.13
first critical speed
speed of rotation at which the first (lowest) lateral natural frequency of vibration of the rotating parts corresponds to
the frequency of rotation
3.14
design radial load
radial load of the pump rotor for which the bearing system is selected
3.15
maximum radial load
greatest radial load of the pump rotor resulting from operating the pump at any condition within its allowable
operating range
3.16
shaft runout
total radial deviation indicated by a device measuring the shaft position in relation to the bearing housing, as the
shaft is rotated manually in its bearings with the shaft in the horizontal position
3.17
face runout
total axial deviation indicated at the outer radial face of the shaft seal casing by a device attached to and rotated
with the shaft when the shaft is rotated manually in its bearings in the horizontal position
NOTE The radial face is that which determines the alignment of a seal component.
3.18
shaft deflection
displacement of a shaft from its geometric centre in response to the radial hydraulic forces acting on the impeller
NOTE Shaft deflection does not include shaft movement caused by tilting within the bearing clearances, bending caused
by impeller unbalance, or shaft runout.
3.19
seal flush
circulation
return of pumped liquid from high pressure area to seal cavity
NOTE This can be by external piping or internal passage and is used to remove heat generated at the seal or to maintain
positive pressure in the seal cavity or treated to improve the working environment for the seal. In some cases it may be
desirable to circulate from the seal cavity to a lower pressure area (e.g. the inlet).
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SIST EN ISO 5199:2004
ISO 5199:2002(E)
3.20
injection flush
introduction of an appropriate (clean, compatible, etc.) liquid into the seal cavity from an external source and then
into the pumped liquid
NOTE Injection flush is used for the same purpose as circulation and also to provide an improved working environment for
the seal.
3.21
quenching
continuous or intermittent introduction of an appropriate (clean, compatible, etc.) fluid at lower than seal chamber
pressure on the atmospheric side of the main shaft seal
NOTE It is used to exclude air or moisture, to prevent or clear deposits (including ice), lubricate an auxiliary seal, snuff out
fire, dilute, heat or cool leakage.
3.22
barrier fluid
fluid which is introduced between dual mechanical seals to completely isolate the pump process liquid from the
environment
NOTE The pressure of the barrier fluid is always higher than the process pressure being sealed.
3.23
buffer fluid
fluid used as a lubricant or buffer between dual mechanical seals
NOTE The fluid is always at a pressure lower than the pump process pressure being sealed.
3.24
pump H(Q) curve
pump head capacity curve
pump characteristic curve
relationship between the total head of the pump and the rate of flow at given operating/rated conditions of speed
and liquid
3.25
net positive suction head 3 %
NPSH3
net positive suction head required to limit to 3 % the fall in the total head of the first stage of the pump
NOTE It is the basic standard used in performance curves.
See Figure 1.
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SIST EN ISO 5199:2004
ISO 5199:2002(E)

Key
1 Pressure-temperature limit of a component
2 Fluid operating field including tolerances

p Pressure t Temperature
p t
Hydrostatic test pressure Hydrostatic test temperature
test test
p t
Basic design pressure Minimum operating temperature
N min,op
p t
Maximum allowable working pressure Maximum operating temperature
all,w max,op
p t Maximum allowable working temperature at
Maximum outlet operating pressure
2max,op max,all w
maximum outlet pressure
p2min,op Minimum outlet operating pressure
Figure 1 — Pressure–containing part, pressure/temperature rating
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SIST EN ISO 5199:2004
ISO 5199:2002(E)
4 Design
4.1 General
4.1.1 Documents
Whenever the documents include conflicting technical requirements, they shall be applied in the following
sequence:
a) purchase order (or enquiry if no order is placed) (see annexes C and D);
b) data sheet (see annex A);
c) the requirements of this International Standard;
d) other standards to which reference is made in the order (or enquiry if no order is placed).
4.1.2 Pump H(Q) curve (characteristic curve)
The manufacturer/supplier shall make available the characteristic curve which shall indicate the allowable operating
range of the pump as supplied. Characteristic curves of the smallest and largest impeller diameter shall be plotted
on the performance chart for pumps conforming to ISO 2858 and for other pump types when requested by the
purchaser.
Pumps with a stable characteristic curve are preferred.
If specified by the purchaser, it shall be possible for pumps that are to be used with constant speed drives to
increase the head by approximately 5 % at
...