iTeh StandardsiTeh Standards
EURUSD
Your shopping cart is empty.
SIST

SIST EN 14382:2004

(Main)

Safety devices for gas pressure regulating stations and installations - Gas safety shut-off devices for inlet pressures up to 100 bar

Safety devices for gas pressure regulating stations and installations - Gas safety shut-off devices for inlet pressures up to 100 bar

This European Standard specifies constructional, functional, sizing, and testing requirements, also documentation and marking of gas safety shut-off devices:
¾ for operating pressures up to 100 bar and nominal diameters up to DN 400;
¾ used at an operating temperature range from -20 °C to +60 °C which operate with fuel gases of the 1st and 2nd family according to EN 437 in transmission and distribution networks and industrial installations.
For operating pressures higher than 100 bar or nominal diameters DN > 400 or operating temperatures outside the range -20 °C to 60 °C, this standard can be considered as a guideline.
Gas safety shut-off devices will hereafter be called SSDs except in titles.
This European Standard considers the following classes of SSD:
a) Temperature classes:
¾ class 1: operating temperature range from -10 °C to 60 °C;
¾ class 2: operating temperature range from -20 °C to 60 °C.
b) Functional classes:
¾ class A: SSDs that close when damage to the pressure sensing element occurs (applicable to overpressure SSDs only) or when external power fails;
¾ class B: SSDs that do not close when damage to the pressure sensing element occurs or are able to be opened automatically by the pressure control system (applicable to overpressure SSDs only).

Sicherheitseinrichtungen für Gas-Druckregelanlagen und -einrichtungen - Sicherheitsabsperreinrichtungen für Betriebsdrücke bis 100 bar

Diese Europäische Norm legt Bauanforderungen, Funktionsanforderungen, Dimensionierung, Prüfung, Dokumen-tation und Kennzeichnung von Gas- Sicherheitsabsperreinrichtungen fest für:
   Eingangsdrücke bis 100 bar und Nennweiten bis DN 400
   Betriebstemperaturen von   20 *C bis + 60 *C, soweit sie mit Brenngasen der 1. und 2. Familie nach EN 437 in Gasversorgungsnetzen wie auch in gewerblichen und industriellen Anlagen betrieben werden.
Für Eingangsdrücke über 100 bar und/oder DN   400 und/oder  Betriebstemperaturen außerhalb des Bereiches       20 *C bis 60 °C kann diese Europäische Norm als Leitfaden herangezogen werden.
"Gas-Sicherheitsabsperreinrichtung" wird im weiteren, außer in Überschriften, mit "SAE" abgekürzt.
Diese Europäische Norm behandelt die folgenden Klassen von SAEs:
a)   Temperaturklassen:
   Klasse 1: Betriebstemperaturbereich von   10 *C bis 60 *C;
   Klasse 2: Betriebstemperaturbereich von   20 *C bis 60 *C.
b)   Funktionsklassen:
   Klasse A: Schließen bei Schaden an der Vergleichmembran (nur bei Überdruckabsicherung) oder im Falle eines Ausfalls der externen Energiequelle;
   Klasse B: kein Schließen bei Schaden an der Vergleichmembran bzw. mögliches automatisches    Öffnen durch die Druckregelung (nur bei Überdruckabsicherung für SAEs).
ANMERKUNG 1   Einige Länder oder Vertreiber können die Verwendung einiger der o.g. Klassen einschränken.
ANMERKUNG 2   SAEs, die die Anforderungen dieser norm erfüllen, können als "in Übereinstimmung mit EN..." deklariert werden.
Die Anforderungen dieser Norm hinsichtlich Werkstoffe und Funktionsverhalten können auf SAEs angewendet werden, die thermische oder elektrische Energie für den Auslösevorgang verwenden. Die Betriebsparameter des Auslösevorgangs solcher SAEs werden nicht in dieser Norm festgelegt. Dieser Entwurf einer europäischen Norm gilt nicht für:
   SAEs vor/an/in Gasgeräte des Haushalts, die hinter Hausgaszählern installiert sind.
   SAEs zum Einbau in die Regelstrecken in Übereinstimmung mit EN 12279

Dispositifs de sécurité pour postes et installations de détente-régulation de pression de gaz - Clapets de sécurité pour pressions de service jusqu' a 100 bar

La présente Norme européenne spécifie les exigences relatives à la construction et au fonctionnement, le dimensionnement, les essais, la documentation et le marquage des clapets de sécurité :
   pour des pressions amont jusqu'à 100 bar et diamètres nominaux jusqu'à DN 400 ;
   utilisés sur une plage de température de service de - 20 °C à + 60 °C, et fonctionnant avec des gaz combustibles de la première et de la deuxième famille conformément à l'EN 437 dans les réseaux de transport et de distribution ainsi que dans les installations industrielles.
Pour des pressions amont supérieures à 100 bar ou des diamètres nominaux DN > 400 ou des températures de service extérieures à la plage   20 °C à + 60 °C, la présente norme peut être considérée comme une "ligne directrice".
Dans la suite du présent document, les "clapets de sécurité" sont désignés sous l'appellation "CS", sauf dans les titres.
La présente Norme européenne traite des classes suivantes de CS :
a)   classes de température :
   classe 1 : plage de température de service comprise entre - 10 °C et + 60 °C ;
   classe 2 : plage de température de service comprise entre - 20 °C et + 60 °C.
b)   classes de fonctionnement :
   classe A : se ferme lorsqu'un dommage se produit sur la membrane de détection de la pression (applicable uniquement aux CS de surpression) et lors d'une défaillance d'alimentation en énergie externe ;
   classe B : ne ferme pas lorsqu'un dommage se produit sur la membrane de détection de la pression ou peut être ouvert automatiquement par le système de commande de pression (applicable uniquement aux CS de surpression).
NOTE 1   Certains pays ou donneurs d'ordre peuvent restreindre l'usage de certaines de classes listées ci-dessus.
NOTE 2   Les CS satisfaisant aux exigences de la présente norme peuvent être déclarés "conformes à l'EN.....".
Les exigences relatives au fonctionnement et aux matériaux, spécifiées dans la présente norme, peuvent s'appliquer aux CS qui utilisent l'énergie thermique ou

Varnostne naprave za plinske regulacijske postaje in napeljave - Plinske varnostne zaporne naprave za vstopne tlake do 100 bar

General Information

Status
Withdrawn
Publication Date
31-Jan-2004
Withdrawal Date
31-May-2005
ICS
23.060.40 - Pressure regulators
Technical Committee
DPL - Gas supply
Current Stage
9900 - Withdrawal (Adopted Project)
Start Date
01-Jun-2005
Due Date
01-Jun-2005
Completion Date
01-Jun-2005
Ref Project
EN 14382:2002 - Safety devices for gas pressure regulating stations and installations - Gas safety shut-off devices for inlet pressures up to 100 bar

Relations

Replaced By
SIST EN 14382:2005 - Safety devices for gas pressure regulating stations and installations - Gas safety shut-off devices for inlet pressures up to 100 bar
Effective Date
01-Jun-2005

Buy Standard

EN 14382:2004EN 14382:2004
PreviousNext
Standard
EN 14382:2004
English language
63 pages
sale 10% off
Preview
sale 10% off
Preview
e-Library read for
1 day

Standards Content (Sample)


2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Varnostne naprave za plinske regulacijske postaje in napeljave - Plinske varnostne zaporne naprave za vstopne tlake do 100 barSicherheitseinrichtungen für Gas-Druckregelanlagen und -einrichtungen - Sicherheitsabsperreinrichtungen für Betriebsdrücke bis 100 barDispositifs de sécurité pour postes et installations de détente-régulation de pression de gaz - Clapets de sécurité pour pressions de service jusqu' a 100 barSafety devices for gas pressure regulating stations and installations - Gas safety shut-off devices for inlet pressures up to 100 bar23.060.40Pressure regulatorsICS:Ta slovenski standard je istoveten z:EN 14382:2002SIST EN 14382:2004en01-februar-2004SIST EN 14382:2004SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14382December 2002ICS 23.060.40English versionSafety devices for gas pressure regulating stations andinstallations - Gas safety shut-off devices for inlet pressures upto 100 barDispositifs de sécurité pour postes et installations dedétente-régulation de pression de gaz - Clapets de sécuritépour pressions amont jusqu' à 100 barSicherheitseinrichtungen für Gas-Druckregelanlagen und -einrichtungen - Gas-Sicherheitsabsperreinrichtungen fürEingangsdrücke bis 100 barThis European Standard was approved by CEN on 7 November 2002.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards 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 translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2002 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14382:2002 ESIST EN 14382:2004

Use of allowable pressure pzul.49Annex B (informative)
Ice formation.50B.1General.50SIST EN 14382:2004

Conformity evaluation .51C.1General.51C.2Manufacturer’s conformity evaluation.51C.3Third parties’ conformity evaluation.51C.4Issue of the certificate of conformity.52Annex D (informative)
Pressure drop and flow coefficient.53D.1Calculation method for pressure drop throughout the safety shut-off device.53D.2Test method for the determination of the flow coefficient Cv.53Annex E (informative)
Alternative test method to verify the maximum flow with respect to theperformance of trip mechanism.55E.1Test method.55E.2Test method for the determination of the dynamic factor Cr.55E.3Test method for a series of safety shut-off devices.56Annex F (informative)
Sizing equation.58Annex G (informative)
Inspection certificate.59Annex H (informative)
Order specification.60H.1Minimum specifications.60H.2Optional specifications.60Annex I (informative)
Acceptance test.62Bibliography.63SIST EN 14382:2004
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.

This May Also Interest You

SIST
SIST EN 334:2019+A1:2025(Main)
Gas pressure regulators for inlet pressure up to 10 MPa (100 bar)
EN 334:2019+A1:2024

This European Standard specifies constructional, functional, testing, marking, sizing and documentation requirements of gas pressure regulators:
-   for inlet pressures up to 100 bar and nominal diameters up to DN 400;
-   for an operating temperature range from - 20  °C to +60 °C,
which operate with fuel gases of the 1st and 2nd  family as defined in EN 437:2003+A1:2009, used in the pressure regulating stations in accordance with EN 12186 or EN 12279, in transmission and distribution networks and also in commercial and industrial installations.
"Gas pressure regulators" hereafter will be called "regulators" except in the titles.
For standard regulators when used in pressure regulating stations complying with EN 12186 or EN 12279, the Annex ZA lists all applicable essential safety requirements of the European legislation on pressure equipment except external and internal corrosion resistance for applications in corrosive environment.
This document considers the following temperature classes/types of regulators:
-   temperature class 1: operating temperature range from −10 °C to 60 °C;
-   temperature class 2: operating temperature range from −20 °C to 60 °C;
-   type IS: (integral strength type);
-   type DS: (differential strength type).
This document applies to regulators which use the pipeline gas as a source of control energy unassisted by any external power source.
The regulator may incorporate a second regulator, used as monitor, complying with the requirements in this document.
The regulator may incorporate a safety shut off device (SSD) complying with the requirements of EN 14382.
The regulator may incorporate a creep (venting) relief device, complying with the requirements in Annex E and/or a vent limiter, complying with the requirements in Annex I.
This document does not apply to:
-   regulators upstream from/on/in domestic gas-consuming appliances which are installed downstream of domestic gas meters;
-   regulators designed to be incorporated into pressure control systems used in service lines ) with volumetric flow rate ≤ 200 m3/h at normal conditions and inlet pressure ≤ 5 bar;
-   regulators for which a specific document exists (e.g. EN 88-1 and EN 88-2, etc.);
-   industrial process control valves in accordance with EN 1349.
The normative Annex G of this document lists some suitable materials for pressure bearing parts, inner metallic partition walls, auxiliary devices, integral process and sensing lines, connectors and fasteners. Other materials may be used when complying with the restrictions given in Table 5.
Continued integrity of gas pressure regulators is ensured by suitable surveillance checks and maintenance. For periodic functional checks and maintenance it is common to refer to national regulations/standards where existing or users/manufacturers practices.
This document has introduced the reaction of the pressure regulators to the specified reasonable expected failures in terms of "fail close" and "fail open" pressure regulator types, but it should be considered that there are other types of failures whose consequences can bring to the same reactions (these risks are covered via redundancy as per EN 12186) and that residual hazards will be reduced by a suitable surveillance in use / maintenance.
In this document, both pressure regulators that can be classified as "safety accessories" by themselves (monitors) according to European legislation on pressure equipment as well as regulators that can be used to provide the necessary pressure protection through redundancy (e.g. pressure regulator with integrated safety shut-off device, pressure regulator + in-line monitor, pressure regulator + safety shut off device) are considered.
The provisions in this document are in line with the state of art at the moment of writing.

  • Standard
    148 pages
    English language
    sale 10% off
    e-Library read for
    1 day
SIST
SIST EN 14382:2019+A1:2025(Main)
Gas safety shut-off devices for inlet pressure up to 10 MPa (100 bar)
EN 14382:2019+A1:2024

This document specifies constructional, functional, testing marking and sizing requirements and documentation of gas safety shut-off devices:
-   for inlet pressures up to 100 bar and nominal diameters up to DN 400;
-   for an operating temperature range from -20 °C to +60 °C;
which operate with fuel gases of the 1st and 2nd family as defined in EN 437, used in the pressure regulating stations in accordance with EN 12186 or EN 12279, in transmission and distribution networks and also in commercial and industrial installations.
"Gas safety shut-off devices" will hereafter be called "SSDs" except in titles.
For standard safety shut-off devices when used in pressure regulating stations complying with EN 12186 or EN 12279, Annex ZA lists all applicable Essential Safety Requirements of Directive 2014/68/EU (PED).
This document considers the following temperature classes/types of SSDs:
-   temperature class 1: operating temperature range from -10 °C to 60 °C;
-   temperature class 2: operating temperature range from -20 °C to 60 °C;
-   functional class A: SSDs that close when damage to the pressure detecting element occurs or when external power fails and whose re-opening, is possible only manually;
-   functional class B: SSDs that do not close when damage to the pressure detecting element occurs but provide suitable and reliable protection and whose re-opening, is possible only manually;
-   type IS: (integral strength type);
-   type DS: (differential strength type).
SSDs complying with the requirements of this document may be declared as "in conformity with EN 14382" and bear the mark "EN 14382".
The material and functional requirements specified in this document may be applied to SSDs which use thermal energy or the effects of electrical energy to trip the operation of the closing member. For these SSDs the operational parameters are not specified in this document.
The SSD may incorporate a vent limiter, complying with the requirements in Annex J.
This standard for some paragraphs and sub clauses makes full reference to prEN 334:2016.
This document does not apply to:
-   SSDs upstream from/on/in domestic gas-consuming appliances which are installed downstream of domestic gas meters;
-   SSDs designed to be incorporated into pressure-regulating devices used in service lines  with volumetric flow rate ≤ 200 m3/h at normal conditions and inlet pressure ≤ 5 bar.
Continued integrity of safety shut-off devices is ensured by periodic functional checks. For periodic functional checks it is common to refer to national regulations/standards where existing or users/manufacturers practices.
This document considers the reaction of the SSDs functional class A to the specified reasonable expected failures in terms of "fail close" behaviour, but it should be consider that there are other types of failures whose consequences cannot bring to the same reactions (these risks are covered via redundancy as per EN 12186) and that residual hazards should be reduced by a suitable surveillance in use / maintenance.
In this document, both safety shut-off devices that can be classified as "safety accessories" by themselves according the Pressure Equipment Directive (2014/68/EU) as well as safety shut-off devices that can be used to provide the necessary pressure protection through redundancy (e.g. shutoff device integrated in a pressure regulator, shut-off device with a second shut-off device) are considered. Addition of environmental considerations;
The provisions in this document are in line with the state of art at the moment of writing.
This document does not intend to limit the improvement of actual provisions (materials, requirements, test methods, acceptance criteria, etc.) or the developing of new provisions for SSDs where they are suitable to ensure an equivalent level of reliability.

  • Standard
    77 pages
    English language
    sale 10% off
    e-Library read for
    1 day
SIST
SIST EN 12186:2015(Main)
Gas infrastructure - Gas pressure regulating stations for transmission and distribution - Functional requirements
EN 12186:2014

This European Standard contains the relevant functional requirements for gas pressure regulating stations, which form part of gas transmission or distribution systems. It is applicable to the design, materials, construction, testing, operation and maintenance of gas pressure regulating stations.
This European Standard does not apply to gas pressure regulating stations commissioned prior to the publication of this standard.
The stations covered by this European Standard have a maximum upstream operating pressure which does not exceed 100 bar. For higher maximum upstream operating pressures this standard should be used as a guideline.
If the inlet pipework of the station is a service line and the maximum upstream operating pressure does not exceed 16 bar and the design flow rate is equal to or less than 200 m3/h under normal conditions, EN 12279 applies.
Basic system requirements for gas pressure regulating stations are contained in this European Standard. Requirements for individual components (valves, regulators, safety devices, pipes, etc.) or installation of the components are contained in the appropriate European Standards.
NOTE   For combined regulating and measuring stations, the additional requirements of EN 1776 can apply.
The requirements in this European Standard do not apply to the design and construction of auxiliary facilities such as sampling, calorimetering, odorization systems and density measuring. These facilities are covered by the appropriate European Standards, where existing, or other relevant standards.
The requirements of this European Standard are based on good gas engineering practice under conditions normally encountered in the gas industry. Requirements for unusual conditions cannot be specifically provided for, nor are all engineering and construction details prescribed.
The requirements in this European Standard are based on the physical and chemical data of gaseous fuels – including non-conventional gases – in accordance with Table 1 of EN 437:2003+A1:2009 for first and second family gases. Additional requirements in the case of gaseous fuels heavier than air and/or sour gases are not covered by this European Standard.
The objective of this European Standard is to ensure the safe operation of such stations. This does not, however, relieve all concerned of the responsibility for taking the necessary care and applying effective quality management during the design, construction and operation.

  • Standard
    37 pages
    English language
    sale 10% off
    e-Library read for
    1 day
SIST
SIST EN 12279:2000/A1:2005(Amendment)
Gas supply systems - Gas pressure regulating installations on service lines - Functional requirements
EN 12279:2000/A1:2005
  • Amendment
    3 pages
    English language
    sale 10% off
    e-Library read for
    1 day
SIST
SIST EN 12279:2000(Main)
Gas supply systems - Gas pressure regulating installations on service lines - Functional requirements
EN 12279:2000

This European Standard contains the relevant functinal requirements for gas pressure regulating installations forming a part of the service lines in gas supply systems.

  • Standard
    15 pages
    English language
    sale 10% off
    e-Library read for
    1 day
SIST
SIST EN 14382:2005/kprA1:2008(Amendment)
Safety devices for gas pressure regulating stations and installations - Gas safety shut-off devices for inlet pressures up to 100 bar
EN 14382:2005/prA1

Tolerance of 9 months before UAP per CEN/TC 235 res. C03/2006.

  • Draft
    28 pages
    English language
    sale 10% off
    e-Library read for
    1 day
SIST
SIST EN 14382:2019/kFprA1:2023(Amendment)
Gas safety shut-off devices for inlet pressure up to 10 MPa (100 bar)
EN 14382:2019/FprA1

This document specifies constructional, functional, testing marking and sizing requirements and documentation of gas safety shut-off devices:
-   for inlet pressures up to 100 bar and nominal diameters up to DN 400;
-   for an operating temperature range from -20 °C to +60 °C;
which operate with fuel gases of the 1st and 2nd family as defined in EN 437, used in the pressure regulating stations in accordance with EN 12186 or EN 12279, in transmission and distribution networks and also in commercial and industrial installations.
"Gas safety shut-off devices" will hereafter be called "SSDs" except in titles.
For standard safety shut-off devices when used in pressure regulating stations complying with EN 12186 or EN 12279, Annex ZA lists all applicable Essential Safety Requirements of Directive 2014/68/EU (PED).
This document considers the following temperature classes/types of SSDs:
-   temperature class 1: operating temperature range from -10 °C to 60 °C;
-   temperature class 2: operating temperature range from -20 °C to 60 °C;
-   functional class A: SSDs that close when damage to the pressure detecting element occurs or when external power fails and whose re-opening, is possible only manually;
-   functional class B: SSDs that do not close when damage to the pressure detecting element occurs but provide suitable and reliable protection and whose re-opening, is possible only manually;
-   type IS: (integral strength type);
-   type DS: (differential strength type).
SSDs complying with the requirements of this document may be declared as "in conformity with EN 14382" and bear the mark "EN 14382".
The material and functional requirements specified in this document may be applied to SSDs which use thermal energy or the effects of electrical energy to trip the operation of the closing member. For these SSDs the operational parameters are not specified in this document.
The SSD may incorporate a vent limiter, complying with the requirements in Annex J.
This standard for some paragraphs and sub clauses makes full reference to prEN 334:2016.
This document does not apply to:
-   SSDs upstream from/on/in domestic gas-consuming appliances which are installed downstream of domestic gas meters;
-   SSDs designed to be incorporated into pressure-regulating devices used in service lines  with volumetric flow rate ≤ 200 m3/h at normal conditions and inlet pressure ≤ 5 bar.
Continued integrity of safety shut-off devices is ensured by periodic functional checks. For periodic functional checks it is common to refer to national regulations/standards where existing or users/manufacturers practices.
This document considers the reaction of the SSDs functional class A to the specified reasonable expected failures in terms of "fail close" behaviour, but it should be consider that there are other types of failures whose consequences cannot bring to the same reactions (these risks are covered via redundancy as per EN 12186) and that residual hazards should be reduced by a suitable surveillance in use / maintenance.
In this document, both safety shut-off devices that can be classified as "safety accessories" by themselves according the Pressure Equipment Directive (2014/68/EU) as well as safety shut-off devices that can be used to provide the necessary pressure protection through redundancy (e.g. shutoff device integrated in a pressure regulator, shut-off device with a second shut-off device) are considered. Addition of environmental considerations;
The provisions in this document are in line with the state of art at the moment of writing.
This document does not intend to limit the improvement of actual provisions (materials, requirements, test methods, acceptance criteria, etc.) or the developing of new provisions for SSDs where they are suitable to ensure an equivalent level of reliability.

  • Draft
    5 pages
    English language
    sale 10% off
    e-Library read for
    1 day
SIST
SIST EN 334:2005/kprA1:2008(Amendment)
Gas pressure regulators for inlet pressures up to 100 bar
EN 334:2005/prA1

Tolerance of 9 months requested before UAP per CEN/TC 235 C02/2006.

  • Draft
    32 pages
    English language
    sale 10% off
    e-Library read for
    1 day
SIST
oSIST prEN 12186:2025(Main)
Gas infrastructure - Gas pressure control stations for transmission and distribution - Functional requirements
prEN 12186

This document describes the functional requirements relevant for design, materials, construction, testing and operation of gas pressure control stations to ensure their reliability in terms of safety of the station itself and the downstream system and continuity of service.
This document is applicable for gas pressure control stations which are part of gas transmission or distribution systems for hydrogen, and hydrogen rich, and methane rich gases. Additional requirements in the case of gaseous fuels heavier than air and/or toxic or corrosive gases are not covered by this document.
This document does not apply to gas pressure control stations in operation prior to the publication of this standard. However, Annex D of this document can be used as guidance for the evaluation of stations in operation prior to the publication of this document, regarding the change of the type of gas, e.g. repurposing for the use with hydrogen.
The stations covered by this document have a maximum upstream operating pressure, which does not exceed 100 bar. For higher maximum upstream operating pressures, this standard can be used as a guideline.
If the inlet pipework of the station is a service line and the maximum upstream operating pressure does not exceed 16 bar and the design flow rate is equal to 2000 kW based on the gross calorific value or less, EN 12279 applies.
This document contains the basic system requirements for gas pressure control stations. Requirements for individual components (valves, regulators, safety devices, pipes, etc.) or installation of the components are contained in the appropriate European Standards.
NOTE   For combined control and measuring stations, the additional requirements of EN 1776 can apply.
The requirements in this document do not apply to the design and construction of auxiliary facilities such as sampling, calorimetering, odorization systems and density measuring. These facilities are covered by the appropriate European Standards, where existing, or other relevant standards.
The requirements of this document are based on good gas engineering practice under conditions normally encountered in the gas industry. Requirements for unusual conditions cannot be specifically provided for, nor are all engineering and construction details prescribed.
The objective of this document is to ensure the safe operation of such stations. This does not, however, relieve all concerned of the responsibility for taking the necessary care and applying effective quality and safety management during the design, construction and operation.

  • Draft
    49 pages
    English language
    sale 10% off
    e-Library read for
    1 day
SIST
SIST EN 334:2019/kFprA1:2024(Amendment)
Gas pressure regulators for inlet pressure up to 10 MPa (100 bar)
EN 334:2019/FprA1

This European Standard specifies constructional, functional, testing, marking, sizing and documentation requirements of gas pressure regulators:
-   for inlet pressures up to 100 bar and nominal diameters up to DN 400;
-   for an operating temperature range from - 20  °C to +60 °C,
which operate with fuel gases of the 1st and 2nd  family as defined in EN 437:2003+A1:2009, used in the pressure regulating stations in accordance with EN 12186 or EN 12279, in transmission and distribution networks and also in commercial and industrial installations.
"Gas pressure regulators" hereafter will be called "regulators" except in the titles.
For standard regulators when used in pressure regulating stations complying with EN 12186 or EN 12279, the Annex ZA lists all applicable essential safety requirements of the European legislation on pressure equipment except external and internal corrosion resistance for applications in corrosive environment.
This document considers the following temperature classes/types of regulators:
-   temperature class 1: operating temperature range from −10 °C to 60 °C;
-   temperature class 2: operating temperature range from −20 °C to 60 °C;
-   type IS: (integral strength type);
-   type DS: (differential strength type).
This document applies to regulators which use the pipeline gas as a source of control energy unassisted by any external power source.
The regulator may incorporate a second regulator, used as monitor, complying with the requirements in this document.
The regulator may incorporate a safety shut off device (SSD) complying with the requirements of EN 14382.
The regulator may incorporate a creep (venting) relief device, complying with the requirements in Annex E and/or a vent limiter, complying with the requirements in Annex I.
This document does not apply to:
-   regulators upstream from/on/in domestic gas-consuming appliances which are installed downstream of domestic gas meters;
-   regulators designed to be incorporated into pressure control systems used in service lines ) with volumetric flow rate ≤ 200 m3/h at normal conditions and inlet pressure ≤ 5 bar;
-   regulators for which a specific document exists (e.g. EN 88-1 and EN 88-2, etc.);
-   industrial process control valves in accordance with EN 1349.
The normative Annex G of this document lists some suitable materials for pressure bearing parts, inner metallic partition walls, auxiliary devices, integral process and sensing lines, connectors and fasteners. Other materials may be used when complying with the restrictions given in Table 5.
Continued integrity of gas pressure regulators is ensured by suitable surveillance checks and maintenance. For periodic functional checks and maintenance it is common to refer to national regulations/standards where existing or users/manufacturers practices.
This document has introduced the reaction of the pressure regulators to the specified reasonable expected failures in terms of "fail close" and "fail open" pressure regulator types, but it should be considered that there are other types of failures whose consequences can bring to the same reactions (these risks are covered via redundancy as per EN 12186) and that residual hazards will be reduced by a suitable surveillance in use / maintenance.
In this document, both pressure regulators that can be classified as "safety accessories" by themselves (monitors) according to European legislation on pressure equipment as well as regulators that can be used to provide the necessary pressure protection through redundancy (e.g. pressure regulator with integrated safety shut-off device, pressure regulator + in-line monitor, pressure regulator + safety shut off device) are considered.
The provisions in this document are in line with the state of art at the moment of writing.

  • Draft
    8 pages
    English language
    sale 10% off
    e-Library read for
    1 day