SIST EN 12569:2020

SLOVENSKI STANDARD
SIST EN 12569:2020
01-december-2020
Nadomešča:
SIST EN 12569:2000
SIST EN 12569:2000/AC:2000
SIST EN 12569:2000/AC:2001
Industrijski ventili - Ventili za kemično in petrokemično procesno industrijo -
Zahteve in preskusi
Industrial valves - Valves for chemical and petrochemical process industry -
Requirements and tests
Industriearmaturen - Armaturen für die chemische und petrochemische
Verfahrensindustrie - Anforderungen und Prüfungen
Robinetterie industrielle - Appareils de robinetterie destinés aux procédés de l'industrie
chimique et pétrochimique - Prescriptions et essais
Ta slovenski standard je istoveten z: EN 12569:2020
ICS:
23.060.01 Ventili na splošno Valves in general
SIST EN 12569:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 12569:2020

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SIST EN 12569:2020


EN 12569
EUROPEAN STANDARD

NORME EUROPÉENNE

October 2020
EUROPÄISCHE NORM
ICS 23.060.01 Supersedes EN 12569:1999
English Version

Industrial valves - Valves for chemical and petrochemical
process industry - Requirements and tests
Robinetterie industrielle - Appareils de robinetterie Industriearmaturen - Armaturen für die chemische und
destinés aux procédés de l'industrie chimique et petrochemische Verfahrensindustrie - Anforderungen
pétrochimique - Prescriptions et essais und Prüfungen
This European Standard was approved by CEN on 14 September 2020.

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 CEN-CENELEC 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 CEN-CENELEC Management
Centre has the same status as the official versions.

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





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12569:2020 E
worldwide for CEN national Members.

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SIST EN 12569:2020
EN 12569:2020 (E)
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms, definitions and symbols . 6
3.1 Terms and definitions . 6
3.2 Symbols . 7
4 Category of valves . 7
5 Requirements . 7
5.1 Design . 7
5.1.1 General . 7
5.1.2 Shell design strength . 9
5.1.3 Protection against exceeding the allowable limits . 9
5.1.4 Connection to the drive . 9
5.1.5 Additional requirements for butterfly valves, ball and plug valves . 10
5.1.6 Strength of valve stem and shaft . 10
5.1.7 Anti-blow out design . 10
5.2 Materials . 11
5.2.1 General . 11
5.2.2 Spheroidal graphite cast iron to EN 1563 . 11
5.2.3 Spheroidal graphite cast iron to EN 1563, 5.3103 and 5.3104 . 12
5.2.4 Cast steel . 12
5.3 Manufacturing . 12
5.3.1 Welding . 12
5.3.2 Supply chain . 12
5.4 Non-destructive testing (NDT) . 12
5.5 Final assessment . 12
5.6 Marking . 13
5.7 Surface and coating . 14
5.7.1 Surface finish . 14
5.7.2 Flange facing surfaces . 15
5.8 Condition as delivered . 15
5.9 Documentation . 15
Annex A (normative) Supplementary possible steel grades for fasteners . 16
Annex B (normative) Threaded holes for pneumatic connections . 18
Annex C (informative) Basic configuration of the valve interface from part-turn actuator to
the valve with a bracket . 20
Bibliography . 23

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SIST EN 12569:2020
EN 12569:2020 (E)
European foreword
This document (EN 12569:2020) 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 April 2021, and conflicting national standards shall be
withdrawn at the latest by April 2021.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 12569:1999 and EN 12569:1999/AC:2000.
The main technical changes compared to the previous edition are the following:
— Clause 2 on normative references has been updated;
— Clause 3 for terms, definitions and symbols has been added;
— Clause 5 on the applicable requirements has been completely re-written;
— normative Annex A on supplementary possible steel grades for fasteners and normative Annex B for
threaded holes for pneumatic connections have been added;
— informative Annex C giving basic configuration of the valve interface from actuator to the valve with
a bracket has been added.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,
Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United
Kingdom.
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Introduction
This document is based on the experience of the chemical and petrochemical industry and provides
additional requirements to those given in EN 16668 and valve product standards.
It is assumed that the essential safety requirements of the European legislation for pressure equipment
(satisfied by European product standards) and safety requirements from EN 16668 and other standards
are satisfied.
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1 Scope
This document applies to valves of DN 15 and larger, made of metallic materials for chemical and
petrochemical plants. It contains additional requirements to those contained in the relevant European
product standards (e.g. EN 593, EN 1349) and EN 16668.
The use of design codes or technical rules other than described by European product standards is subject
to agreement with the purchaser.
Process control devices and safety accessories are not subject of this document.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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.
EN 558, Industrial valves — Face to-face and centre-to-face dimensions of metal valves for use in flanged
pipe systems — PN and Class designated valves
EN 736-2:2016, Valves — Terminology — Part 2: Definition of components of valves
EN 736-3:2008, Valves — Terminology — Part 3: Definition of terms
EN 1092-1, Flanges and their joints — Circular flanges for pipes, valves, fittings and accessories, PN
designated — Part 1: Steel flanges
EN 1267, Industrial valves — Test of flow resistance using water as test fluid
EN 1349, Industrial process control valves
EN 1515-4, Flanges and their joints — Bolting — Part 4: Selection of bolting for equipment subject to the
Pressure Equipment Directive 97/23/EC
EN 1563, Founding — Spheroidal graphite cast irons
EN 1759 (all parts), Flanges and their joint — Circular flanges for pipes, valves, fittings and accessories,
Class designated
EN 10204, Metallic products — Types of inspection documents
EN 10269, Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties
EN 12266-1:2012, Industrial valves — Testing of metallic valves — Part 1: Pressure tests, test procedures
and acceptance criteria — Mandatory requirements
EN 12266-2:2012, Industrial valves — Testing of metallic valves — Part 2: Tests, test procedures and
acceptance criteria – Supplementary requirements
EN 12351, Industrial valves — Protective caps for valves with flanged connections
EN 12570, Industrial valves — Method for sizing the operating element
EN 15081, Industrial valves — Mounting kits for part-turn valve actuator attachment
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EN 16668:2016+A1:2018, Industrial valves — Requirements and testing for metallic valves as pressure
accessories
EN 60534-4:2006, Industrial-process control valves — Part 4: Inspection and routine testing
EN ISO 1179-1, Connections for general use and fluid power — Ports and stud ends with ISO 228-1 threads
with elastomeric or metal-to-metal sealing — Part 1: Threaded ports (ISO 1179-1)
EN ISO 5210, Industrial valves — Multi-turn valve actuator attachments (ISO 5210)
EN ISO 5211:2017, Industrial valves — Part-turn actuator attachments (ISO 5211:2017)
1
EN ISO 15848-1:2015, Industrial valves — Measurement, test and qualification procedures for fugitive
emissions – Part 1: Classification system and qualification procedures for type testing of valves (ISO 15848-
1:2015)
3 Terms, definitions and symbols
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 736-2, EN 736-3, EN 1267,
EN 16668 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
3.1.1
shell tapping
threaded hole in the wall of the shell
[SOURCE: EN 736-2:2016, 3.1.1.23]
3.1.2
fugitive emission
chemical or mixture of chemicals, in any physical form, which represents an unanticipated or spurious
leak from equipment on an industrial site
[SOURCE: EN ISO 15848-1:2015, 3.5]
3.1.3
sound engineering practice
SEP
design taking into account all relevant factors influencing safety

1
As impacted by amendment EN ISO 15848-1:2015/A1:2017.
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3.1.4
anti-blow out design
valve design which ensures that, when the valve is under pressure, the shaft or stem cannot be fully blown
out of the shell by disassembly of any external part or by failure of the connection between obturator and
shaft or stem even when external parts (which are not included in the bare shaft valve, e.g. bracket, lever,
actuator) are removed
[SOURCE: EN 736-3:2008, 3.3.7, modified – Note and indents have been incorporated into the sentence]
3.2 Symbols
Symbols and units are given in Table 1.
Table 1 — Symbols and units
Symbol Denomination Unit
3
ρ Liner density g/cm
4 Category of valves
Classification of valves shall be carried out as stated in EN 16668. Unless otherwise agreed, valves shall
always be classified for gaseous fluids of Fluid Group 1 (to ensure universal use of the components).
Valves like condensate traps and pressure controllers that are used exclusively for steam and steam
condensate service shall be classified in Fluid Group 2.
If the result of the categorization is not category I, II or III, SEP applies.
5 Requirements
5.1 Design
5.1.1 General
5.1.1.1 For threaded holes for pneumatic connections, all threads shall be G-threads, see Annex B.
5.1.1.2 The individual parts of the components shall be manufactured in such a way as to ensure their
interchangeability for components of the same make, same type, same design status and the same
nominal size.
5.1.1.3 The fatigue life depending on the maximum stress range to which a bellow is exposed during
the entire service life shall be specified in the bellow documentation being considered as integrated part
of the valve manufacturer documentation.
Flooded bellows in manually operated valves up to PN 40 for process application shall be designed for
20 000 full strokes (10 000 cycles , i.e. motions of the valve obturator moving from fully closed position
to fully opened position, and returning to fully closed position) at least. As an option, at least 5 000 full
strokes are subject to agreement.
Flooded bellows in manually operated valves higher than PN 40 for process application shall be designed
for 2 500 full strokes at least.
As subject to agreement, the performance of the bellows may be qualified by a type test in accordance
with EN ISO 15848-1 with its numbers of mechanical cycles for a defined level of the valve (to which the
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bellow is fitted). All other stem (or shaft) seal systems may be considered equivalent if they meet the
requirements in accordance with EN ISO 15848-1.
5.1.1.4 Spindle seals (e.g. bellows and diaphragms) which are designed for increased tightness
requirements (e.g. to avoid fugitive emissions into the atmosphere) and are considered as primary seals
shall, unless otherwise agreed, be provided with a secondary seal in the event of unforeseen damage to
the primary seal.
5.1.1.5 Concerning the sizing of the operating element, the following shall apply in the absence of
requirements.
For any manual operation of valves, the minimum size of the operating element shall be in accordance
with EN 12570. The size of the operating element shall be selected such that the valve can be operated:
a) when the allowable differential pressure is equal to the maximum allowable pressure, and
b) taking into account the effect of hydrodynamic torque due to flow velocity.
When specified by the customer, it is allowed to size an actuator based on a reduced differential pressure
taking into account the effect of the hydraulic torque.
The actual differential pressure shall be marked on the valve.
5.1.1.6 Concerning flow characteristics Table 2 shall apply.
NOTE 1 Flow velocity is a design parameter to be considered for valves.
3
NOTE 2 The flow velocity is the quotient of the volumetric flow rate (expressed in m /s) and the area calculated
using the diameter (expressed in m) having a value equal to the number of the DN divided by 1 000.
Table 2 — Flow velocity
PS Maximum flow velocity
bar m/s
3
Liquids with a density of Gas (at density 1,293 kg/m at
a a
3
1 000 kg/m 273 °K and 1 bar)
Up to 6 2,5 25
6 < PS ≤ 10 3 30
10 < PS ≤ 16 4 35
PS > 16 5 40
a
In case of other physical properties of fluids, the values are adapted to the specific weight of the
fluid.
5.1.1.7 The face-to-face lengths of valves shall conform to EN 558, unless agreed otherwise.
5.1.1.8 On all components where an electrically conductive connection to the piping line cannot be
ensured for installation-specific reasons (e.g. wafer-style valves), suitable engineering measures (e.g. a
pocket hole with internal threading in the shell) shall be provided to ensure proper discharge of any
developing electrostatic charges to the piping line.
Durable protection against electrostatic charging shall be ensured.
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The discharge resistance between any part of the component (including attachments) and the piping line
6
shall be affirmed < 10 Ω for metallic components and < 10 Ω for plastic-lined metallic components.
In oil and grease-free design, special cleanliness requirements shall be a separate subject to agreement.
5.1.1.9 For valves classified in SEP, the relevant requirements of this document shall be considered
in addition.
5.1.1.10 All screwed connections, e.g. body/cover connections or screwed in parts of valves, shall be
properly secured (e.g. by mechanical / contact friction or locking) against accidental loosening.
Screwed body/cover connections that rely on the thread to seal are not acceptable.
5.1.1.11 The valve shall be designed so that the risk of media induced crevice corrosion is avoided.
5.1.1.12 Gaskets of the shell shall be radially retained against the pressure. In case of body bonnet
joints up to and including PN 25 (or Class 150) valves, it is not mandatory.
Spiral wound gaskets sealing the body/cover connection shall be fully retained or provided with outer
and inner guide rings.
The sealing face of spiral wound gaskets and metallic ring-joint gaskets shall not be interrupted by bolts,
rings, etc.
5.1.1.13 Flange bolting shall not be used to compensate pipe stresses.
5.1.1.14 The design of the valve shall allow, with or without an intermediate part, mounting of a
pneumatic, hydraulic or electric actuator complying with EN ISO 5210 (multi-turn valve actuators) or
EN ISO 5211 (part-turn actuators).
5.1.1.15 Manually operated valves shall normally be closed by turning the handwheel or lever in a
clockwise direction when facing the handwheel or lever.
If anti-clockwise closing is ordered, this shall be specified and marked on the operating element.
5.1.2 Shell design strength
The requirements in accordance with EN 16668 and existing product standards shall be fulfilled.
Isolating valves and control valves shall have no shell tapping, unless otherwise specified.
5.1.3 Protection against exceeding the allowable limits
The requirements in accordance with EN 16668:2016+A1:2018, 5.1.3 and existing product standards
shall be fulfilled.
5.1.4 Connection to the drive
Where a connecting flange is specified for actuators as per EN ISO 5210 or EN ISO 5211, the design and
type of execution shall be agreed between the manufacturer and the purchaser.
The connection between the valve body and the gearbox or actuator shall be vented such that any product
leakage from the stem or shaft cannot penetrate into the gearbox or actuator housing.
Mounting of pneumatic part-turn actuators on valves shall be done in accordance with EN 15081. The
preferred design is mentioned in Annex C.
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5.1.5 Additional requirements for butterfly valves, ball and plug valves
5.1.5.1 Ease of recognition of valve position
On butterfly valves, ball and plug valves, the position of the hand lever or indicating means shall
unequivocally indicate the valve open and closed positions. The design of the indicating means shall be
such that its components cannot be assembled to falsely indicate the valve open or closed position. When
the valve is open, the lever shall point in the direction of the piping line; when the valve is closed, it shall
point in the direction normal to the piping line. Any other arrangement of the manual lever or indicating
means shall be reliably ruled out.
The position of the valve in the installed condition shall also be clearly recognizable when the manual
lever or mechanical actuator (manual gearbox, pneumatic or electrical actuator) has been removed. The
same shall apply to the position indication of multi-way valves and their stem extensions.
On isolating valves, the removal of the hand lever or the external actuator is prohibited under pressurized
service conditions. A corresponding caution note shall be included in the operating manual.
The shaft and actuator shall indicate the same position of the sealing element, regardless of the
accessories used (e.g. stem extension).
After assembly, the position of actuators and gearboxes relative to the valve shall be physically marked
in order to avoid incorrect re-assembly during maintenance.
5.1.5.2 Dead space venting in ball and plug valves
Where dead space venting is specified, the type of execution shall be agreed between the manufacturer
and the purchaser.
5.1.6 Strength of valve stem and shaft
The weakest point of the valve stem or shaft shall always be located outside the pressure-bearing valve
body.
The following data, expressed in Nm, shall be indicated by the valve manufacturer for actuator sizing:
a) breakaway torque (for opening and closing);
b) maximum allowable torque of shaft or stem load at room temperature and maximum operating
pressure in the absence of requirements.
The following criteria shall be observed for valves with a shaft:
— for isolating valves, the nominal pressure shall be taken as the differential pressure;
— dry (unlubricated);
— prolonged duration of non-operation.
These data shall be submitted to the purchaser on request.
5.1.7 Anti-blow out design
The valve shall be of anti-blow out design (see EN 736-3).
A stem or shaft shall be deemed to be blowout-proof if the valve design is such that the stem or shaft
cannot be completely forced out of the pressure-bearing body while the valve is under pressure when an
external component such as a manual lever, ratchet plate, stuffing box gland or mechanical actuator is
removed.
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5.2 Materials
5.2.1 General
5.2.1.1 The requirements in accordance with EN 16668:2016+A1:2018, 5.2 shall be fulfilled. When
selecting materials, EN 16668:2016+A1:2018, 5.2 shall be applied.
5.2.1.2 The shell design strength testing shall be carried out in accordance with
EN 16668:2016+A1:2018, 5.1.2, b), c), d) as applicable. For shell design for valves, classified in SEP,
EN 16668:2016+A1:2018, 5.1.2, a) may also be applied.
5.2.1.3 The components shall be free from asbestos. The valve components shall be free from non-
ferrous metals, unless agreed otherwise.
5.2.1.4 When selecting materials for bolts and nuts, EN 16668:2016+A1:2018, 5.2.6 shall be applied.
Supplementary to other possible steels are listed in Annex A.
The bolts and nuts for the shell connections shall at least exhibit the same corrosion properties as the
shell material.
EXAMPLE Where component shells are fabricated from 1.4401, 1.4404, 1.4408, 1.4571 or 1.4581 bolts and
nuts shall be made of stainless steel.
5.2.1.5 For plastic-lined components where fastener (screws, bolts, nuts) are used for connecting the
shell these fasteners shall be made of austenitic material.
For plastic-lined components, Fluorethylenpropylen (FEP), Perfluoroalkoxy (PFA) or
Polytetrafluorethylen (PTFE)-lined valves shall have a minimum lining thickness of not less than 2,5 mm
in the fluid-contacted areas. The purchaser shall be notified of any non-compliance with the minimum
lining thickness for reasons inherent in the design or measurement method. Density for recommended
liner materials are shown in Table 3. Other lining, liner density and liner minimum thickness
(permeability behaviour might require higher thickness e.g. 3 mm) shall be subject to agreement.
Table 3 — Liner density
a
Lining Liner density
Minimum thickness
ρ
mm
3
g/cm
FEP 2,13 2,5
PFA 2,14 2,5
PTFE 2,16 2,5
a
As in ISO 19240:2017, 5.4.
5.2.2 Spheroidal graphite cast iron to EN 1563
Spheroidal graphite cast iron according to EN 1563, e.g. 5.3106, 5.3200 and 5.3103, shall satisfy the
criteria for Quality Level 4. Conformance shall be demonstrated by the scope of testing defined in
EN 16668:2016+A1:2018, Annex E.
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5.2.3 Spheroidal graphite cast iron to EN 1563, 5.3103 and 5.3104
Components fabricated from 5.3103 (equals EN-GJS-400-18-LT) and 5.3104 (equals EN-GJS-400-18-RT)
shall have a 90 % spheroidal graphite structure with a predominantly ferritic matrix structure containing
not more than 5 % pearlite.
Secondary iron carbide detectable in the micro-section at 200-fold magnification shall not be allowed.
The requirements for the impact energy at −20 °C for 5.3103 shall also apply for 5.3104 and be
demonstrated by a notch impact test per casting/heat treatment lot using one valve body from the last
moulding box or a test specimen cast integral with the body. The thickness of the integrally cast test
specimen should be equal to or greater than the flange thickness. All other tests may be performed in
accordance with EN 1563.
On small components not lending themselves to notch impact testing, the manufacturer may verify the
...