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CEN

EN 334:1999

(Main)

Gas pressure regulators for inlet pressures up to 100 bar

Gas pressure regulators for inlet pressures up to 100 bar

This European Standard specifies constructional and functional requirements, regulator sizing, testing, documentation and marking of gas pressure regulators: - for inlet pressures up to 100 bar, - used at an ambient temperature range from -20°C to +60°C which operate with fuel gases of the 1st and of the 2nd family in accordance with EN 437 in transmission and distribution networks and also in industrial installations. "Gas pressure regulators" hereafter will be called "regulators" except in the titles.

Gas-Druckregelgeräte für Eingangsdrücke bis 100 bar

Diese Europäische Norm legt die Anforderungen an Bauweise, Funktionsverhalten, Dimensionierung, Prüfung, Dokumentation und Kennzeichnung von Gas-Druckregelgeräten fest für: - Eingangsdrücke bis 100 bar, - Umgebungstemperaturen von -20°C bis +60°C, soweit sie mit Brenngasen der 1. und 2. Familie nach EN 437 in Gasversorgungsnetzen wie auch in industriellen Anlagen betrieben werden. " Gas-Druckregelgeräte" werden nachfolgend, außer in den Überschriften, als "Regelgeräte" bezeichnet.

Appareils de régulation de pression de gaz (régulateurs) pour des pressions amont jusqu'à 100 bar

La présente norme européenne spécifie les exigences relatives à la construction et au fonctionnement, au dimensionnement, aux essais, à la documentation et au marquage des appareils de régulation de pression (régulateurs). Il concerne les régulateurs: - pour une pression amont jusqu'à 100 bar; - pour une plage de température ambiante de -20°C à +60°C qui sont exploités 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.

Regulatorji tlaka plina za vstopne tlake do 100 bar

General Information

Status
Withdrawn
Publication Date
18-May-1999
Withdrawal Date
01-Mar-2005
ICS
23.060.40 - Pressure regulators
Technical Committee
CEN/TC 235 - Gas pressure regulators and associated safety devices for use in gas transmission and distribution
Drafting Committee
CEN/TC 235 - Gas pressure regulators and associated safety devices for use in gas transmission and distribution
Current Stage
9960 - Withdrawal effective - Withdrawal
Start Date
02-Mar-2005
Completion Date
02-Mar-2005
Ref Project
SIST EN 334:2000 - Gas pressure regulators for inlet pressures up to 100 bar

Relations

Amended By
EN 334:1999/A1:2000 - Gas pressure regulators for inlet pressures up to 100 bar
Effective Date
22-Dec-2008
Replaced By
EN 334:2005 - Gas pressure regulators for inlet pressures up to 100 bar
Effective Date
22-Dec-2008

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Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Regulatorji tlaka plina za vstopne tlake do 100 barGas-Druckregelgeräte für Eingangsdrücke bis 100 barAppareils de régulation de pression de gaz (régulateurs) pour des pressions amont jusqu'a 100 barGas pressure regulators for inlet pressures up to 100 bar23.060.40Pressure regulatorsICS:Ta slovenski standard je istoveten z:EN 334:1999SIST EN 334:2000en01-februar-2000SIST EN 334:2000SLOVENSKI
STANDARD



SIST EN 334:2000



SIST EN 334:2000



SIST EN 334:2000



SIST EN 334:2000



SIST EN 334:2000



SIST EN 334:2000



SIST EN 334:2000



SIST EN 334:2000



SIST EN 334:2000



SIST EN 334:2000



SIST EN 334:2000



SIST EN 334:2000



SIST EN 334:2000



SIST EN 334:2000



SIST EN 334:2000



SIST EN 334:2000



SIST EN 334:2000



SIST EN 334:2000



SIST EN 334:2000



SIST EN 334:2000



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Gas safety shut-off devices for inlet pressure up to 10 MPa (100 bar)
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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:
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-   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;
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EN 334:2019(Main)
Gas pressure regulators for inlet pressure up to 10 MPa (100 bar)
SIST EN 334:2019

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.
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Gas pressure regulators for inlet pressure up to 10 MPa (100 bar)
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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.);
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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.
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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;
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This document specifies the safety, design, construction, and performance requirements and testing for automatic vent valves for burners and appliances burning one or more gaseous fuels, hereafter referred to as “valves”.
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This document specifies the safety, design, construction, and performance requirements and testing for electronic pressure and/or flow rate regulators for burners and appliances burning one or more gaseous fuels, hereafter referred to as “regulators”.
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