Industrial-process control valves -- Part 8-1: Noise considerations - Laboratory measurement of noise generated by aerodynamic flow through control valves

This part of IEC 60534-8 defines equipment, methods, and procedures for obtaining laboratory measurements of sound pressure levels radiated by control valves and/or associated piping configurations, including fixed restrictions, through which compressible fluids are passing. Control valves discharging to atmosphere are excluded from this standard. Method A is a uniform method of measuring the radiated noise from the valve and associated test piping and allows a comparison of various measuring results which is beneficial for both user and manufacturer. The noise criteria are expressed by determining the sound pressure level of the valve under consideration. Method B is a procedure for measuring the sound pressure levels within pipe systems upstream and downstream of the valve under fixed operating conditions. Since inaccuracies due to the pipe transmission are eliminated, this method is preferred for evaluation of the acoustical characteristic of valves. The noise characteristics to be determined are useful for the following reasons: a) to compare the performance of different valves; b) to plan measures for noise abatement; c) to determine acoustical characteristics of valves and valve assemblies; d) to enable proper sizing of sound absorbers; e) to determine possible adverse effects on ultra-sonic flow meter measurements.

Stellventile für die Prozessregelung -- Teil 8-1: Geräuschbetrachtungen - Laboratoriumsmessungen von Geräuschen bei gasdurchströmten Stellventilen

Vannes de régulation des processus industriels -- Partie 8-1: Considérations sur le bruit - Mesure en laboratoire du bruit créé par un débit aérodynamique à travers une vanne de régulation

Définit le matériel, les méthodes et les procédures pour obtenir des mesures en laboratoire des niveaux de pression acoustique aérienne rayonnée par les vannes de régulation et/ou les configurations de tuyauteries associées, y compris les restrictions fixes, à travers lesquelles passent des fluides compressibles. Les vannes de régulation déchargeant à l'atmosphère sont exclues de cette norme.

Regulacijski ventili za industrijske procese - 8-1. del: Šum - Laboratorijske meritve šuma, ki ga proizvaja aerodinamični pretok skozi regulacijske ventile (IEC 60534-8-1:2005)

General Information

Status
Published
Publication Date
31-Dec-2006
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Jan-2007
Due Date
01-Jan-2007
Completion Date
01-Jan-2007

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---------------------- Page: 1 ----------------------

EUROPEAN STANDARD EN 60534-8-1
NORME EUROPÉENNE
EUROPÄISCHE NORM November 2005

ICS 23.060.40; 17.140.20; 25.040.40 Supersedes EN 60534-8-1:2000


English version


Industrial-process control valves
Part 8-1: Noise considerations -
Laboratory measurement of noise
generated by aerodynamic flow
through control valves
(IEC 60534-8-1:2005)


Vannes de régulation des processus Stellventile für die Prozessregelung
industriels Teil 8-1: Geräuschbetrachtungen -
Partie 8-1: Considérations sur le bruit - Laboratoriumsmessungen von
Mesure en laboratoire du bruit créé Geräuschen bei gasdurchströmten
par un débit aérodynamique Stellventilen
à travers une vanne de régulation (IEC 60534-8-1:2005)
(CEI 60534-8-1:2005)



This European Standard was approved by CENELEC on 2005-09-01. 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 Central Secretariat 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 Central Secretariat has the same status as the official versions.

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

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

Central Secretariat: rue de Stassart 35, B - 1050 Brussels


© 2005 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 60534-8-1:2005 E

---------------------- Page: 2 ----------------------

EN 60534-8-1:2005 - 2 -
Foreword
The text of document 65B/558/FDIS, future edition 2 of IEC 60534-8-1, prepared by SC 65B, Devices,
of IEC TC 65, Industrial-process measurement and control, was submitted to the IEC-CENELEC
parallel vote and was approved by CENELEC as EN 60534-8-1 on 2005-09-01.
This European Standard supersedes EN 60534-8-1:2000.
This standard has been revised to obtain consistency in describing the methods for measuring internal
and external sound pressure measurements and to update the description of the instrumentation from
analog to digital.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2006-07-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2008-09-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 60534-8-1:2005 was approved by CENELEC as a
European Standard without any modification.
__________

---------------------- Page: 3 ----------------------

- 3 - EN 60534-8-1:2005
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 Where 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 Series Industrial-process control valves EN 60534 Series

1) 2)
IEC 60534-1 - Part 1: Control valve terminology and EN 60534-1 2005
general considerations

1) 2)
IEC 60534-2-3 - Part 2-3: Flow capacity - Test procedures EN 60534-2-3 1998

1) 2)
IEC 60534-8-3 - Part 8-3: Noise considerations - Control EN 60534-8-3 2000
valve aerodynamic noise prediction
method

1) 2)
IEC 61260 - Electroacoustics - Octave-band and EN 61260 1995
fractional-octave-band filters

IEC 61672-1 2002 Electroacoustics - Sound level meters EN 61672-1 2003
Part 1: Specifications

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)
Undated reference.
2)
Valid edition at date of issue.

---------------------- Page: 4 ----------------------

NORME CEI
INTERNATIONALE
IEC



60534-8-1
INTERNATIONAL


Deuxième édition
STANDARD

Second edition

2005-09


Vannes de régulation des processus industriels –
Partie 8-1:
Considérations sur le bruit –
Mesure en laboratoire du bruit créé par un débit
aérodynamique à travers une vanne de régulation

Industrial-process control valves –
Part 8-1:
Noise considerations –
Laboratory measurement of noise generated
by aerodynamic flow through control valves

 IEC 2005 Droits de reproduction réservés  Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in any
utilisée sous quelque forme que ce soit et par aucun procédé, form or by any means, electronic or mechanical, including
électronique ou mécanique, y compris la photocopie et les photocopying and microfilm, without permission in writing from
microfilms, sans l'accord écrit de l'éditeur. the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
CODE PRIX
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PRICE CODE
Commission Electrotechnique Internationale
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
Pour prix, voir catalogue en vigueur
For price, see current catalogue

---------------------- Page: 5 ----------------------

60534-8-1  IEC:2005 – 3 –
CONTENTS
FOREWORD.5

1 Scope.11
2 Normative references .11
3 Terms and definitions .13
4 Symbols .13
5 Method A (external sound pressure measurement) .15
5.1 Test system.15
5.1.1 Pressure regulating devices .15
5.1.2 Test specimen .15
5.1.3 Test section piping .15
5.1.4 Pressure taps .17
5.1.5 Acoustic environment .17
5.1.6 Instrumentation.17
5.2 Test procedure .17
5.2.1 Test fluids.17
5.2.2 Sound level sensor position.17
5.2.3 Blow-down test limitations .17
5.2.4 Test data accuracy .19
5.2.5 Test data .19
5.2.6 Accuracy .21
5.3 Data evaluation .21
6 Method B (internal sound pressure measurement).27
6.1 Test system.27
6.1.1 Pressure regulating devices .27
6.1.2 Test specimen .29
6.1.3 Test section piping .29
6.1.4 Pressure taps .29
6.1.5 Number of measuring points .29
6.1.6 Instrumentation for noise measurement .29
6.2 Testing procedures.31
6.2.1 Test fluid .31
6.2.2 Fluid velocity .31
6.2.3 Background noise.31
6.2.4 Sound level sensor position.31
6.2.5 Blow-down test limitations .33
6.2.6 Test data accuracy .33
6.2.7 Test data .33
6.2.8 Accuracy .35
6.3 Data evaluation .35

Figure 1 – Control valve noise test – System components.21
Figure 2 – Test arrangements .25
Figure 3 – Arrangement of a test stand (principle).27
Figure 4 – Mounting position of the sound level meter in the pipe for Δh 0,5 mm.31

---------------------- Page: 6 ----------------------

60534-8-1  IEC:2005 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

INDUSTRIAL-PROCESS CONTROL VALVES –

Part 8-1: Noise considerations –
Laboratory measurement of noise generated
by aerodynamic 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 technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60534-8-1 has been prepared by subcommittee 65B: Devices, of
IEC technical committee 65: Industrial-performance measurement and control.
This second edition cancels and replaces the first edition published in 1986. This edition
constitutes a technical revision.
This standard has been revised to obtain consistency in describing the methods for measuring
internal and external sound pressure measurements and to update the description of the
instrumentation from analog to digital.

---------------------- Page: 7 ----------------------

60534-8-1  IEC:2005 – 7 –
The text of this standard is based on the following documents:
FDIS Report on voting
65B/558/FDIS 65B/567/RVD

Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
IEC 60534 comprises the following parts, under the general title Industrial-process control
valves:
Part 1: Control valve terminology and general considerations
Part 2-1: Flow capacity – Sizing equations for fluid flow under installed conditions
Part 2-3: Flow capacity – Test procedures
Part 2-4: Flow capacity – Inherent flow characteristics and rangeability
Part 2-5: Flow capacity – Sizing equations for fluid flow through multistage control valves
with interstage recovery
Part 3-1: Dimensions – Face-to-face dimensions for flanged, two-way, globe-type, straight
pattern and centre-to-face dimensions for flanged, two-way, globe-type, angle
pattern control valves
Part 3-2: Dimensions – Face-to-face dimensions for rotary control valves except butterfly
valves
Part 3-3: Dimensions – End-to-end dimensions for buttweld, two-way, globe-type, straight
pattern control valves
Part 4: Inspection and routine testing
Part 5: Marking
Part 6-1: Mounting details for attachment of positioners to control valves – Positioner
mounting on linear actuators
Part 6-2: Mounting details for attachment of positioners to control valves – Positioner
mounting on rotary actuators
Part 7: Valve data sheet
Part 8-1: Noise considerations – Laboratory measurement of noise generated by
aerodynamic flow through control valves
Part 8-2: Noise considerations – Laboratory measurement of noise generated by
hydrodynamic flow through control valves
Part 8-3: Noise considerations – Control valve aerodynamic noise prediction method
Part 8-4: Noise considerations – Prediction of noise generated by hydrodynamic flow
Part 9: Test procedure for response measurements from step inputs (under consideration)

---------------------- Page: 8 ----------------------

60534-8-1  IEC:2005 – 9 –
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in
the data related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

---------------------- Page: 9 ----------------------

60534-8-1  IEC:2005 – 11 –
INDUSTRIAL-PROCESS CONTROL VALVES –

Part 8-1: Noise considerations –
Laboratory measurement of noise generated
by aerodynamic flow through control valves



1 Scope
This part of IEC 60534-8 defines equipment, methods, and procedures for obtaining laboratory
measurements of sound pressure levels radiated by control valves and/or associated piping
configurations, including fixed restrictions, through which compressible fluids are passing.
Control valves discharging to atmosphere are excluded from this standard.
Method A is a uniform method of measuring the radiated noise from the valve and associated
test piping and allows a comparison of various measuring results which is beneficial for both
user and manufacturer. The noise criteria are expressed by determining the sound pressure
level of the valve under consideration.
Method B is a procedure for measuring the sound pressure levels within pipe systems
upstream and downstream of the valve under fixed operating conditions. Since inaccuracies
due to the pipe transmission are eliminated, this method is preferred for evaluation of the
acoustical characteristic of valves.
The noise characteristics to be determined are useful for the following reasons:
a) to compare the performance of different valves;
b) to plan measures for noise abatement;
c) to determine acoustical characteristics of valves and valve assemblies;
d) to enable proper sizing of sound absorbers;
e) to determine possible adverse effects on ultra-sonic flow meter measurements.
2 Normative references
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.
IEC 60534-1, Industrial-process control valves – Part 1: Control valve terminology and
general considerations
IEC 60534 (all parts), Industrial-process control valves
IEC 60534-2-3, Industrial-process control valves – Part 2-3: Flow capacity – Test procedures
IEC 60534-8-3, Industrial-process control valves – Part 8-3: Noise considerations – Control
valve aerodynamic noise prediction method

---------------------- Page: 10 ----------------------

60534-8-1  IEC:2005 – 13 –
IEC 61260, Electroacoustics – Octave-band and fractional-octave-band filters
IEC 61672-1:2002, Electroacoustics – Sound level meters – Part 1: Specifications
ISO 3744:1994, Acoustics – De
...

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