Li ce ns ed C op y R R IC T IS Q R R IC T IS Q , I S O /E xc ha ng e R us si a, 1 0 N ov em be r 20 04 , U nc on tr ol le d C op y, ( c) B S I BRITISH STANDARD BS EN 1349 2000 Incorporating Corrigendu[.]
Trang 1A single copy of this British Standard is licensed to
RRICTISQ RRICTISQ
10 November 2004
This is an uncontrolled copy Ensure use of the most current version of this document by searching British Standards Online at bsonline.techindex.co.uk
Trang 2BRITISH STANDARD BS EN
1349:2000
Incorporating Corrigendum No 1
Industrial process
control valves
The European Standard EN 1349:2000 has the status of a
British Standard
ICS 23.060.40; 25.040.40
12&23<,1*:,7+287%6,3(50,66,21(;&(37$63(50,77('%<&23<5,*+7/$:
Trang 3This British Standard, having
been prepared under the
direction of the Engineering
Sector Committee, was
published under the authority
of the Standards Committee on
15 April 2000
© BSI 27 August 2002
ISBN 0 580 32989 5
National foreword
This British Standard is the official English language version of EN 1349:2000 including Corrigendum October 2001
The UK participation in its preparation was entrusted by Technical Committee PSE/7, Valves, to Subcommittee PSE/7/11, Control valves, which has the responsibility to:
A list of organizations represented on this subcommittee can be obtained on request to its secretary
Cross-references
The British Standards which implement international or European
publications referred to in this document may be found in the BSI Catalogue
under the section entitled “International Standards Correspondence Index”, or
by using the “Search” facility of the BSI Electronic Catalogue or of British
Standards Online
This publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application
Compliance with a British Standard does not of itself confer immunity from legal obligations.
— aid enquirers to understand the text;
— present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed;
— monitor related international and European developments and promulgate them in the UK
Summary of pages
This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 15 and a back cover
The BSI copyright date displayed in this document indicates when the document was last issued
Amendments issued since publication
Amd No Date Comments
13587 Corrig No 1 27 August 2002 Incorporation of revised Annex ZA
Trang 4EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
EN 1349
January 2000
ICS 23.060.40 Incorporating corrigendum October 2001
English version
Industrial process control valves Robinets de régulation des processus industriels Stellgeräte für die Prozessregelung
This European Standard was approved by CEN on 8 July 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 Central Secretariat 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 Central Secretariat 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
C O M I T É E U R O P É E N D E N O R M A L I S A T I O N
E U R O P Ä I S C H E S K O M I T E E FÜ R N O R M U N G
Central Secretariat: rue de Stassart, 36 B-1050 Brussels
© 2000 CEN All rights of exploitation in any form and by any means reserved
Trang 5This European Standard has been prepared by Technical Committee CEN/TC 69, Industrial valves, 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 July 2000, and conflicting national standards shall be withdrawn at the latest by July 2000
This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s)
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this standard
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
Trang 6Page 3
EN 1349:2000
ÓBSI 27 August 2002
Contents
Foreword 2
Introduction 4
1 Scope 5
2 Normative references 5
3 Definitions 6
3.2 Components 7
3.3 Other terms 7
4 Symbols and abbreviations 8
5 Requirements 8
5.1 Design 8
5.2 Functional characteristics 9
6 Test procedure 10
6.1 Shell design strength 10
6.2 Seat leakage 10
6.3 Performance tests 12
7 Inspection 13
8 Designation 13
9 Marking and preparation for transportation 14
9.1 Marking 14
9.2 Preparation for transportation 14
Annex ZA (informative) Clauses of this European Standard addressing essential requirements or other provisions of EU Directives 15
Trang 7This European Standard has been established on the basis of EN 60534-1, IEC 60534-2-3, IEC 60534-2-4 and IEC 60534-5
It differs from IEC 60534-2-3 by addition of a basic series of face-to-face dimensions, and addition of other control valve types
The functional characteristics from IEC 60534-2-4 and IEC 60534-5 are basically the same
The terminology specific to control valves issued from EN 60534-1 is incorporated in the standard The general valve terminology can be found in EN 736-1, EN 736-2 and EN 736-3
Trang 8Page 5
EN 1349:2000
ÓBSI 27 August 2002
1 Scope
This standard is applicable to all industrial process control valves (hereafter referred to as control valves) It establishes definitions and seat leakage classifications It specifies the face-to-face dimensions and the requirements for inspection, testing and marking
This standard covers control valves from PN 10 to PN 100 and Class 150 to Class 600
The range of DN is according to the dimensions listed in the basic series from EN 558-1 and EN 558-2
2 Normative references
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 the 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
EN 19, Industrial valves – Marking.
EN 558-1, Industrial valves – Face-to-face and centre-to-face dimension of metal valves for use in flanged pipe
systems – Part 1: PN-designated valves.
EN 558-2, Industrial valves – Face-to-face and centre-to-face dimension of metal valves for use in flanged pipe
systems – Part 2: Class-designated valves.
EN 736-1, Valves – Terminology – Part 1: Definition of types of valves.
EN 736-2, Valves – Terminology – Part 2: Definition of components of valves.
EN 736-3, Valves – Terminology – Part 3: Definitions of terms.
prEN 1503-1:1994, Valves – Materials for bodies, bonnets and covers – Part 1: Steels specified in European
Standards 1)
prEN 1503-2:1994, Valves - Materials for bodies, bonnets and covers – Part 2: Steels other than those specified in
European Standards 1)
prEN 1503-3:1994, Valves - Materials for bodies, bonnets and covers – Part 3: Cast irons specified in European
Standards. 1)
prEN 1503-4:1997, Valves - Materials for bodies, bonnets and covers – Part 4: Copper alloys specified in European
Standards 1)
prEN 12266-1:1996, Industrial valves – Testing of valves – Part 1: Tests, test procedures and acceptance criteria
to be fulfilled by every valve 1)
prEN 12516-1, Industrial valves – Shell design strength – Part 1: Calculation method for shells of steel valves 1) prEN 12516-2, Industrial valves – Shell design strength – Part 2: Tabulation method for steel valves 1)
prEN 12516-3:1999, Industrial valves – Shell design strength – Part 3: Experimental Method 1)
EN 60534-1, Industrial process control valves – Part 1: Control Valve terminology and general considerations
(IEC 60534-1: 1987).
1)
Being prepared
Trang 9EN 60534-2-1, Industrial process control valves – Part 2: Flow capacity
Section 1: Sizing equations for incompressible fluid flow under installed conditions (IEC 60534-2: 1978).
EN 60534-2-2, Industrial process control valves – Part 2: Flow capacity
Section 2: Sizing equations for compressible fluid flow under installed conditions (IEC 60534-2-2: 1980).
EN 60534-2-3, Industrial process control valves – Part 2: Flow capacity
Section 3: Test procedure (IEC 60534-2-3: 1997).
IEC 60534-2-4, Industrial-process control valves – Part 2: Flow capacity
Section 4: Inherent flow characteristics and rangeability.
IEC 60534-7, Industrial-process control valves – Part 7: Control valve data sheet.
NOTE This European Standard supports some of the essential requirements of the Pressure Equipment Directive 97/23/EC The essential requirements covered are listed in Annex ZA (informative) It should be noted that this standard is not self sufficient and must be used with some of the normative references listed above
3 Definitions
For the purposes of this standard, the definitions given in EN 736-1, EN 736-2 and EN 736-3 and the following definitions apply
3.1
control valve
a power operated device which changes the fluid flow rate in a process control system It consists of a valve connected to an actuator (with or without positioner) that is capable of changing the position of an obturator in the valve in response to a signal from the controlling system
3.1.1 Control valves with a linear motion obturator
3.1.1.1
globe control valve
a valve in which the obturator moves in a direction perpendicular to the plane of the seat (or seats in the case of double seated and three way valves)
3.1.1.2
diaphragm control valve
a valve in which a flexible obturator isolates the line fluid from the actuating mechanism and provides a seal to the atmosphere
3.1.2 Control valves with a rotary motion obturator
3.1.2.1
ball control valve
a valve with an obturator that is a sphere with an internal passage The axis of the spherical surface is coincident with the axis of the shaft
3.1.2.2
segmented ball control valve
a valve with an obturator that is a segment of a spherical surface The axis of the spherical surface is coincident with the axis of the shaft
3.1.2.3
plug control valve
a valve with an obturator that is cylindrical or conical, having an internal passage
3.1.2.4
eccentric plug control valve
a valve with an eccentric obturator that may be a spherical or conical segment in shape
Trang 10Page 7
EN 1349:2000
ÓBSI 27 August 2002
3.1.2.5
butterfly control valve
a valve with a circular body and a rotary motion disk obturator, pivotally supported by its shaft The shaft and/or obturator may be centred or offset
3.2 Components
3.2.1
cage
in a globe control valve, an element which fully surrounds the obturator It provides guiding of the obturator and/or maintains the seat ring in the valve body The shape of its flow passage may be used to provide the flow characteristic
3.2.2
eccentric plug
the obturator of an eccentric plug control valve Its seating surface may be spherical or conical
3.2.3
leak-off connection
a piping connection provided to detect or collect the leakage, or to inject a fluid to be used as a barrier, between two sets of packing
3.2.4
pilot plug
a secondary obturator included in a main obturator used to balance pressures between both sides of the main obturator
3.2.5
pilot spring
a spring used to assist the functioning of the pilot plug
3.2.6
balanced trim
a globe control valve trim designed to minimize the static and dynamic fluid flow forces acting on the obturator-stem assembly
3.2.7
seat retainer
a separate component used to retain the seat ring in the valve body
3.2.8
ball segment
the obturator of a segmented ball control valve Its shape is a segment of a spherical surface
3.2.9
eccentric disk
the obturator of a butterfly control valve having an offset axis
3.2.10
plug
a term commonly used to refer to the obturator
3.2.11
extension bonnet
a bonnet, the length of which extends the packing chamber away from the flow area
3.3 Other terms
3.3.1
bench setting
the calibration of the actuator spring range of a control valve, expressed in air pressure, to account for the in-service process forces and friction forces for a given travel
Trang 11rated travel
the displacement of the obturator from the closed position to the designated fully open position in response to an input signal
3.3.3
closed position
the position of the obturator when a continuous surface or line of contact is established between the seating surfaces For non seating valves, the closed position is obtained when the flow passageways are minimum
4 Symbols and abbreviations
FL Liquid pressure recovery factor Dimensionless
cT Pressure differential ratio factor Dimensionless
Dp Pressure differential between upstream and downstream
pressure
kPa or bar
5 Requirements
5.1 Design
5.1.1 Materials
5.1.1.1 Shell
The valve shell material shall be selected from EN 1503-1, EN 1503-2, EN 1503-3 or EN 1503-4 and shall be suitable for the design requirements and the operating conditions Where bellows seals are provided, the valve shall be equipped with a secondary seal
The materials for the valve trim components shall be selected to suit the operating conditions (inlet pressure, outlet pressure, fluid, temperature) and the valve type
The minimum body and bonnet wall thickness, the body/bonnet joint and bonnet bolting shall be determined in accordance with prEN 12516-1 and/or prEN 12516-2 and/or prEN 12516-3
NOTE prEN 12516-1 and prEN 12516-2 are currently being written
The face-to-face dimensions of the control valves are included in EN 558-1 and EN 558-2 Table 1 indicates the basic series of face-to-face dimensions used for each control valve type The face-to-face dimensions specified apply to control valves with end connections of the same size and type
Trang 12Page 9
EN 1349:2000
ÓBSI 27 August 2002
Table 1 - Basic series of face-to-face dimensions for control valves
Control valve type PN10,
PN16 PN25,PN40 PN63,PN100 Class 150 Class 300 Class 600 Globe, straight pattern 1, 37 1, 38 2, 39 37, 1 38, 1 39, 2 Globe, angle pattern 8, 40 8, 41 9, 42 11, 40 32, 41 24, 42 Butterfly, wafer 20, 16,
25 20, 16, 25 - 20, 16, 25 16, 25
-Eccentric plug wafer
Segmented ball, wafer
Diaphragm same as EN 558-1 same as EN 558-2
5.1.4 Operation
The actuator, with positioner if specified, is an essential part of the control valve It is important therefore that the specifications of the actuator and positioner are compatible with the performance of the control valve
5.2 Functional characteristics
5.2.1 Shell design strength
All control valve assemblies, with or without the actuator fitted, shall be subjected to a hydrostatic shell test according to EN 12266-1 and 6.1
5.2.2 Flow coefficients
The required values of the coefficients to size a valve for a given application are determined by the equations from
EN 60534-2-1 or EN 60534-2-2 The specific coefficients CV, KV, cT, FL for the control valve have to be given by the manufacturer If the values are determined by a flow test it shall follow EN 60534-2-3
5.2.3 Flow characteristic
When the inherent flow characteristic is given by the manufacturer, the design shall meet the requirements of IEC 60534-2-4
5.2.4 Seat leakage
The manufacturer shall advise the minimum achievable leak rate This subclause does not apply to control valves with a rated flow coefficient less than the following:
KV =0,086; CV =0,10
Leakage shall be specified by the following code:
Leakage class
as shown in table 2:
I to VI
Test fluid G: air or nitrogen L: water
Test procedure
1 or 2
i.e.: III L 1