EN ISO 9906:1999
(Main)Rotodynamic pumps - Hydraulic performance acceptance tests - Grades 1 and 2 (ISO 9906:1999)
Rotodynamic pumps - Hydraulic performance acceptance tests - Grades 1 and 2 (ISO 9906:1999)
This standard deals with hydrolic performance tests for acceptance of rotodynamic pumps.
Kreiselpumpen - Hydraulische Abnahmeprüfung Klassen 1 und 2 (ISO 9906:1999)
Diese Internationale Norm hat Abnahmeprüfungen an Kreiselpumpen (Radial-, Halbaxial- und Axialpumpen, im Folgenden einfach als ¿Pumpen" bezeichnet) zum Gegenstand. Sie bezieht sich auf Pumpen jeglicher Größe, die mit Flüssigkeiten geprüft werden, die sich wie reines, kaltes Wasser verhalten (siehe 5.4.5.1). Sie befasst sich weder mit den baulichen Einzelheiten der Pumpen noch mit den Festigkeitseigenschaften ihrer Bauteile.
Wie im Vorwort beschrieben, enthält die vorliegende Internationale Norm zwei Messgenauigkeitsklassen: Klasse 1 für höhere Genauigkeit und Klasse 2 für geringere Genauigkeit. Diese Klassen beinhalten verschiedene Werte für Toleranzfaktoren, zulässige Schwankungen und Messunsicherheiten.
Die höheren Toleranzfaktoren für Serienpumpen, die nach Katalog-Kennlinien ausgewählt werden, sowie für Pumpen mit einem Leistungsbedarf von weniger als 10 kW sind in Anhang A enthalten.
Diese Internationale Norm kann entweder allein auf die Pumpe ohne Rohrleitungsteile oder auf die Pumpe mit allen oder einem Teil der zugehörigen stromaufwärts bzw. stromabwärts angeordneten Rohrleitungsteilen angewendet werden.
Pompes rotodynamiques - Essais de fonctionnement hydraulique pour la réception - Niveaux 1 et 2 (ISO 9906:1999)
La présente Norme internationale spécifie des essais de fonctionnement hydraulique pour la réception des pompes rotodynamiques (pompes centrifuges, hélico-centrifuges et hélices simplement désignées «pompes» dans la suite). Elle peut s'appliquer aux pompes de toutes tailles et à tous les liquides pompés se comportant comme l'eau propre et froide telle que définie en 5.4.5.2. Elle ne concerne pas les détails de structure de la pompe ni les propriétés mécaniques de ses composants.La présente Norme internationale contient deux niveaux de précision de mesurage: le niveau 1 pour la précision la plus élevée et le niveau 2 pour la précision la plus faible. Ces niveaux incluent différentes valeurs pour les facteurs de tolérance, les fluctuations admissibles et les incertitudes de mesurage.Pour les pompes produites en série selon le choix fait à partir des courbes de performances typiques et pour les pompes de puissance inférieure à 10 kW, voir l'annexe D pour des facteurs de tolérance supérieure.La présente Norme internationale est applicable soit à la pompe elle-même sans accessoire, soit à une combinaison d'une pompe associée à tout ou partie de ses accessoires à l'aval et/ou à l'amont.
Rotodynamic pumps - Hydraulic performance acceptance tests - Grades 1 and 2 (ISO 9906:1999)
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2000
Rotodynamic pumps - Hydraulic performance acceptance tests - Grades 1 and 2
(ISO 9906:1999)
Rotodynamic pumps - Hydraulic performance acceptance tests - Grades 1 and 2 (ISO
9906:1999)
Kreiselpumpen - Hydraulische Abnahmeprüfung Klassen 1 und 2 (ISO 9906:1999)
Pompes rotodynamiques - Essais de fonctionnement hydraulique pour la réception -
Niveaux 1 et 2 (ISO 9906:1999)
Ta slovenski standard je istoveten z: EN ISO 9906:1999
ICS:
23.080 ýUSDONH Pumps
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN ISO 9906
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 1999
ICS 23.080
English version
Rotodynamic pumps - Hydraulic performance acceptance tests -
Grades 1 and 2 (ISO 9906:1999)
Pompes rotodynamiques - Essais de fonctionnement Kreiselpumpen - Hydraulische Abnahmeprüfung Klassen 1
hydraulique pour la réception - Niveaux 1 et 2 (ISO und 2 (ISO 9906:1999)
9906:1999)
This European Standard was approved by CEN on 20 August 1999.
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, 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
© 1999 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 9906:1999 E
worldwide for CEN national Members.
Page 2
CORRECTED 2002-05-08
Foreword
This document (ISO 9906:1999) 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 June 2000, and conflicting national
standards shall be withdrawn at the latest by June 2000.
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, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United
Kingdom.
Endorsement notice
The text of the International Standard ISO 9906:1999 has been approved by CEN as a
European Standard without any modifications.
NOTE Normative references to International Standards are listed in annex ZA (normative).
Page 3
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 5167-1 1991 Measurement of fluid flow by EN ISO 5167-1 1995
means of pressure differential
devices - Part 1: Orifice plates,
nozzles and Venturi tubes
ISO 5198 1998 Centrifugal, mixed flow and axial EN ISO 5198 1987
pumps - Code for hydraulic
performance tests - Precision class
ISO 8316 1987 Measurement of liquid flow in closed EN ISO 8316 1995
conduits - Method by collection of
the liquid in a volumetric tank
ISO 9104 1991 Measurement of fluid flow in closed EN 29104 1993
conduits - Methods of evaluating the
performance of electromagnetic
flow-meters for liquids
INTERNATIONAL ISO
STANDARD 9906
First edition
1999-12-15
Rotodynamic pumps — Hydraulic
performance acceptance tests — Grades 1
and 2
Pompes rotodynamiques — Essais de fonctionnement hydraulique pour
la réception — Niveaux 1 et 2
A
Reference number
ISO 9906:1999(E)
ISO 9906:1999(E)
Contents
1 Scope .1
2 Normative references .1
3 Terms, definitions and symbols.2
4 Guarantees .8
4.1 Subjects of guarantees .8
4.2 Other conditions of guarantee .8
5 Execution of tests.8
5.1 Subjects of tests .8
5.2 Organization of tests .9
5.3 Test arrangements.11
5.4 Test conditions .13
6 Analysis of test results.17
6.1 Translation of the test results to the guarantee conditions.17
6.2 Measuring uncertainties.18
6.3 Values of tolerance factors.20
6.4 Verification of guarantees.20
6.5 Obtaining specified characteristics .21
7 Measurement of flow rate .22
7.1 Measurement by weighing.22
7.2 Volumetric method .22
7.3 Differential pressure devices.22
7.4 Thin-plate weirs.23
7.5 Velocity area methods.23
© ISO 1999
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic
or mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Organization for Standardization
Case postale 56 • CH-1211 Genève 20 • Switzerland
Internet iso@iso.ch
Printed in Switzerland
ii
© ISO
ISO 9906:1999(E)
7.6 Tracers methods. 23
7.7 Other methods . 23
8 Measurement of pump total head . 24
8.1 General . 24
8.2 Definition of the measuring sections . 25
8.3 Water level measurement . 30
8.4 Pressure measurements . 31
9 Measurement of speed of rotation. 34
10 Measurement of pump power input. 35
10.1 General . 35
10.2 Measurement of torque. 35
10.3 Electric power measurements. 35
10.4 Special cases . 35
11 Cavitation tests. 36
11.1 General . 36
11.2 Test installations . 38
11.3 Determination of the NPSH required by the pump. 39
Annex A (normative) Tolerance factors for pumps produced in series with selection made from typical
performance curves and for pumps with a driver power input less than 10 kW (relevant to series pumps
grade 2) . 42
Annex B (normative) Determination of reduced impeller diameters . 43
Annex C (normative) Friction losses. 44
Annex D (informative) Conversion to SI units. 49
Annex E (informative) Guide for suitable time periods between calibrations of test instruments. 50
Annex F (informative) Costs and repetition of tests. 51
Annex G (informative) Performance correction chart for viscous liquids. 52
Annex H ((informative) NPSHR reduction for pumps handling hydrocarbon liquids and high temperature
water . 55
Annex I (informative) Statistical evaluation of measurement results . 57
Annex J (informative) Pump test sheet. 59
Annex K (informative) Checklist . 60
Bibliography. 61
© ISO
ISO 9906:1999(E)
Foreword
ISO (the International Organization for Standar
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