EN 60534-8-2:2011

Industrial-process control valves - Part 8-2: Noise considerations - Laboratory measurement of noise generated by hydrodynamic flow through control valves

IEC 60534-8-2:2011 includes the method for measuring the sound pressure level due to liquid flow through a control valve and the method for determining the characteristic increase of noise due to the onset of cavitation. It also defines the equipment, methods and procedures for the laboratory measurement of the airborne sound needed to determine these characteristics. Two methods are provided for testing the noise generating characteristics of control valves. The first is a uniform method of measuring the radiated noise from the valve and the associated test piping including fixed flow restrictions through which the test fluid (water) is passing. The second is a procedure for measuring the sound pressure levels within pipe systems upstream and downstream of the valve under fixed operating conditions. This second edition cancels and replaces the first edition published in 1991 and constitutes a technical revision that includes internal noise measurement.

Stellventile für die Prozeßregelung - Teil 8-2: Geräuschemission - Laboratoriumsmessungen von Geräuschen bei flüssigkeitsdurchströmten Stellventilen

Vannes de régulation des processus industriels - Partie 8-2: Considérations sur le bruit - Mesure en laboratoire du bruit créé par un écoulement hydrodynamique dans une vanne de régulation

La CEI 60534-8-2:2011 décrit la méthode de mesure du niveau de pression acoustique dû à un débit de liquide au travers d'une vanne de régulation, et la méthode de détermination de l'augmentation caractéristique du bruit due au début de la cavitation. Elle définit également l'équipement, les méthodes et procédures de mesure en laboratoire du bruit aérien, nécessaires à la détermination de ces caractéristiques. Deux méthodes d'essai pour les caractéristiques de génération de bruit des vannes de régulation sont fournies. La première est une méthode uniforme de mesure du bruit rayonné par la vanne et la tuyauterie d'essai associée, y compris les restrictions fixes au travers desquelles passe le fluide d'essai (eau) (voir Note 1). La seconde consiste en une procédure de mesure des niveaux de pression acoustique dans les tuyauteries en amont et en aval de la vanne, dans des conditions de fonctionnement fixes. Cette deuxième édition annule et remplace la première édition parue en 1991, et constitue une révision technique qui inclut la mesure du bruit interne.

Ventili za upravljanje v industrijskih procesih - 8-2. del: Hrup - Laboratorijske meritve hrupa zaradi hidrodinamičnega pretoka skozi ventile za upravljanje (IEC 60534-8-2:2011)

Ta del standarda IEC 60534-8 vključuje metodo za merjenje ravni zvočnega tlaka zaradi pretoka tekočin skozi ventil za upravljanje in metodo za določanje značilnega povečanja hrupa zaradi nastanka kavitacije. Določa tudi opremo, metode in postopke za laboratorijske meritve zvoka v zraku, potrebne za določitev teh
lastnosti. Navedeni sta dve metodi za preskušanje lastnosti ventilov za upravljanje, ki povzročajo hrup. Prva je enotna metoda za merjenje hrupa, ki prihaja iz ventila in
z njim povezanega preskusnega cevovoda vključno z ovirami stalnega toka, po katerih teče preskusna tekočina (voda) (glejte opombo 1). Merila za hrup so izražena z določitvijo ravni zvočnega tlaka obravnavanega ventila. Druga metoda je postopek za merjenje ravni zvočnega tlaka v cevnih sistemih višje in nižje od ventila v stalnih obratovalnih pogojih. Ker so nepravilnosti zaradi prenosa po cevi izločene, ima ta metoda prednost pri presoji akustičnih lastnosti ventilov.
Lastnosti hrupa, ki se določajo, so uporabne za:
a) opredelitev akustičnih lastnosti ventilov in sestavov ventilov ter značilnega faktorja razmerja tlaka xFz ventila za upravljanje;
b) napoved hrupa ventila v določenih procesnih pogojih;
c) primerjavo delovanja različnih ventilov in merilnih rezultatov;
d) načrtovanje ukrepov za podaljšanje življenjske dobe in zmanjšanje hrupa;
e) ugotavljanje možnih škodljivih vplivov na meritve z ultrazvočnim merilnikom pretoka;
f) opredelitev pravilne velikosti absorberjev zvoka.
OPOMBA 1: Preskusne tekočine razen vode ali ventili, ki nimajo cevovoda nižje v toku, ne spadajo v področje uporabe tega oddelka standarda IEC 60534-8.
OPOMBA 2: Faktor xFz se uporablja pri metodi za napoved hrupa iz standarda IEC 60534-8-4.

General Information

• Status: Published
• Publication Date: 15-Dec-2011
• Withdrawal Date: 15-Nov-2014
• ICS: 17.140.20 - Noise emitted by machines and equipment
• ICS: 23.060.40 - Pressure regulators
• ICS: 25.040.40 - Industrial process measurement and control
• Technical Committee: CLC/TC 65X - Industrial-process measurement, control and automation
• Drafting Committee: IEC/SC 65B - IEC_SC_65B
• Parallel Committee: IEC/SC 65B - IEC_SC_65B
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 16-Dec-2011
• Completion Date: 16-Dec-2011
• Ref Project: SIST EN 60534-8-2:2012 - Industrial-process control valves - Part 8-2: Noise considerations - Laboratory measurement of noise generated by hydrodynamic flow through control valves (IEC 60534-8-2:2011)

Relations

• Replaces: EN 60534-8-2:1993 - Industrial-process control valves - Part 8: Noise considerations - Section 2: Laboratory measurement of noise generated by hydrodynamic flow through control valves
• Effective Date: 29-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-februar-2012
1DGRPHãþD
SIST EN 60534-8-2:1998
9HQWLOL]DXSUDYOMDQMHYLQGXVWULMVNLKSURFHVLKGHO+UXS/DERUDWRULMVNH
PHULWYHKUXSD]DUDGLKLGURGLQDPLþQHJDSUHWRNDVNR]LYHQWLOH]DXSUDYOMDQMH,(&

Industrial-process control valves - Part 8-2: Noise considerations - Laboratory
measurement of noise generated by hydrodynamic flow through control valves (IEC
60534-8-2:2011)
Stellventile für die Prozeßregelung -- Teil 8-2: Geräuschemission -
Laboratoriumsmessungen von Geräuschen bei flüssigkeitsdurchströmten Stellventilen
(IEC 60534-8-2:2011)
Vannes de regulation des processus industriels - Partie 8-2: Considérations sur le bruit -
Mesure en laboratoire du bruit créé par un écoulement hydrodynamique dans une vanne
de régulation (CEI 60534-8-2:2011)
Ta slovenski standard je istoveten z: EN 60534-8-2:2011
ICS:
17.140.20 Emisija hrupa naprav in Noise emitted by machines
opreme and equipment
23.060.40 7ODþQLUHJXODWRUML Pressure regulators
25.040.40 Merjenje in krmiljenje Industrial process
industrijskih postopkov measurement and control
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 60534-8-2
NORME EUROPÉENNE
December 2011
EUROPÄISCHE NORM
ICS 17.140.20; 23.060.40; 25.040.40 Supersedes EN 60534-8-2:1993

English version
Industrial-process control valves -
Part 8-2: Noise considerations -
Laboratory measurement of noise generated by hydrodynamic flow
through control valves
(IEC 60534-8-2:2011)
Vannes de régulation des processus Stellventile für die Prozeßregelung -
industriels - Teil 8-2: Geräuschemission -
Partie 8-2: Considérations sur le bruit - Laboratoriumsmessungen von
Mesure en laboratoire du bruit créé par un Geräuschen bei flüssigkeitsdurchströmten
écoulement hydrodynamique dans une Stellventilen
vanne de régulation (IEC 60534-8-2:2011)
(CEI 60534-8-2:2011)
This European Standard was approved by CENELEC on 2011-11-16. CENELEC 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 CENELEC 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 CENELEC member into its own language and notified
to the CEN-CENELEC Management Centre has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60534-8-2:2011 E
Foreword
The text of document 65B/801/FDIS, future edition 2 of IEC 60534-8-2, prepared by SC 65B, "Devices &
process analysis", of IEC/TC 65, "Industrial-process measurement, control and automation" was
submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 60534-8-2:2011.

The following dates are fixed:
(dop) 2012-08-16
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2014-11-16
• latest date by which the national
standards conflicting with the
document have to be withdrawn
This document supersedes EN 60534-8-2:1993.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent
rights.
Endorsement notice
The text of the International Standard IEC 60534-8-2:2011 was approved by CENELEC as a European
Standard without any modification.

- 3 - EN 60534-8-2:2011
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year

IEC 60534-1 2005 Industrial-process control valves - EN 60534-1 2005
Part 1: Control valve terminology and general
considerations
IEC 60534-2-3 1997 Industrial-process control valves - EN 60534-2-3 1998
Part 2-3: Flow capacity - Test procedures

IEC 60534-8-4 - Industrial-process control valves - EN 60534-8-4 -
Part 8-4: Noise considerations - Prediction of
noise generated by hydrodynamic flow

IEC 61672-1 2002 Electroacoustics - Sound level meters - EN 61672-1 2003
Part 1: Specifications
1)
ISO 3744 1994 Acoustics - Determination of sound power EN ISO 3744 1995
levels of noise sources using sound pressure -
Engineering method in an essentially free field
over a reflecting plane
ISO 3745 2003 Acoustics - Determination of sound power EN ISO 3745 2003
levels of noise sources using sound pressure -
Precision methods for anechoic and hemi-
anechoic rooms
1)
EN ISO 3744:1995 is superseded by EN ISO 3744:2010.

IEC 60534-8-2 ®
Edition 2.0 2011-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Industrial-process control valves –
Part 8-2: Noise considerations – Laboratory measurement of noise generated by
hydrodynamic flow through control valves

Vannes de régulation des processus industriels –
Partie 8-2: Considérations sur le bruit – Mesure en laboratoire du bruit créé par
un écoulement hydrodynamique dans une vanne de régulation

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX S
ICS 17.140.20; 23.060.40; 25.040.40 ISBN 978-2-88912-709-2

– 2 – 60534-8-2  IEC:2011
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Symbols . 7
5 General test criteria . 7
5.1 General . 7
5.2 Pressure regulating devices . 8
5.3 Test specimen insulation . 8
5.4 Test section piping . 8
5.5 Pressure taps . 8
5.6 Acoustic environment . 8
5.7 Instrumentation . 8
6 External sound pressure measurement . 9
6.1 General . 9
6.2 Instrumentation for noise measurement . 9
6.3 Test data accuracy . 9
6.4 Test data . 9
7 Internal sound pressure measurement . 10
7.1 Test system . 10
7.2 Instrumentation for noise measurement . 10
7.3 Test fluid . 10
7.4 Background noise . 11
7.5 Sound level sensor position . 11
7.6 Test data accuracy . 11
7.7 Test data . 11
7.8 Accuracy . 12
7.9 Data evaluation . 12
8 Determination of the characteristic pressure ratio x . 12
Fz
8.1 General . 12
8.2 Test procedures . 12
8.2.1 Test fluid . 12
8.2.2 Test conditions for determination of x . 13
Fz
8.3 Determination of x . 13
Fz
8.3.1 Peak frequency method . 13
8.3.2 A-weighted method . 13
Bibliography . 22

Figure 1 – System components for control valve closed loop and open loop noise test . 15
Figure 2 – Test arrangements with specimen outside and (alternatively) inside acoustic
environment . 17
Figure 3 – Typical curve for characteristic pressure ratio x . 18
Fz
Figure 4 – Reference test orifice plate (see 8.2.1) . 18
Figure 5 – Determination of x by peak frequency method (see 8.3.1) . 19
Fz
60534-8-2  IEC:2011 – 3 –
Figure 6 – Determination of x by measuring the overall L , dB(A), at a constant
Fz pA
valve travel . 20
Figure 7 – Mounting position of the sound level meter in the pipe for ∆h < 0,5 mm . 21

– 4 – 60534-8-2  IEC:2011
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL-PROCESS CONTROL VALVES –

Part 8-2: Noise considerations –
Laboratory measurement of noise generated
by hydrodynamic flow through control valves

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each techni
...