SIST EN 12279:2000/A1:2005

Gas supply systems - Gas pressure regulating installations on service lines - Functional requirements

Gasversorgungssysteme - Gas-Druckregeleinrichtungen in Anschlussleitungen - Funktionale Anforderungen

Systemes d'alimentation en gaz - Installations de détente-régulation de la pression de gaz faisant partie des branchements - Prescriptions fonctionnelles

Sistemi oskrbe s plinom – Naprave za regulacijo tlaka na priključnih vodih – Funkcionalne zahteve

General Information

• Status: Published
• Publication Date: 30-Nov-2005
• ICS: 23.060.40 - Pressure regulators
• ICS: 91.140.40 - Gas supply systems
• Technical Committee: DPL - Gas supply
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Dec-2005
• Due Date: 01-Dec-2005
• Completion Date: 01-Dec-2005
• Mandate: M/017 - Standardization mandate to CEN in the field of equipment and installation for the transmission and distribution of gas
• Ref Project: EN 12279:2000/A1:2005 - Gas supply systems - Gas pressure regulating installations on service lines - Functional requirements

Relations

• Amends: SIST EN 12279:2000 - Gas supply systems - Gas pressure regulating installations on service lines - Functional requirements
• Effective Date: 01-Dec-2005

Overview

EN 12279:2000/A1:2005 is a CEN amendment to the European Standard EN 12279:2000 covering functional requirements for gas pressure regulating installations on service lines. This amendment replaces Clause 12 of the parent standard and provides guidance for manufacturers on maintenance aspects to help meet Pressure Equipment Directive (PED) obligations. The document is published in English, French and German and is intended for national standardization adoption across CEN member states.

Key Topics

• Maintenance strategies: The amendment recognises multiple maintenance philosophies and recommends a structured decision-making process to identify optimum maintenance requirements. Strategies include:

  • Condition-based maintenance
  • Regular interval (preventive) maintenance
  • Breakdown (reactive) maintenance

• Risk-based approach: Optimum maintenance depends on operating conditions and duty. The standard acknowledges that strategies may range from simple schedules to complex reliability models such as failure modes and effects studies.

• Component-level focus: Maintenance may target individual key components within a gas pressure regulating station to optimise functional checks and parts replacement programmes.

• Performance and safety expectations: All components shall be maintained to ensure they:

  • Provide sufficient reliability for their intended purpose
  • Remain in sound mechanical condition without leaks
  • Are set and remain at correct pressure settings
  • Are installed and protected against contaminants, liquids, freezing and other impairments

• Record keeping and irregularities: Maintenance activities and any system irregularities (e.g., unintentional tripping or control failures) must be recorded. Suspected pressure deviations require prompt rectification measures.

• Personnel and site safety: The amendment highlights precautions when working in hazardous areas - verifying absence of explosive or flammable atmospheres and ensuring firefighting equipment is available where gas escape risk exists.

Applications

This amendment is directly applicable to:

• Manufacturers and operators of gas pressure regulating installations on residential and commercial service lines
• Maintenance planners developing inspection and replacement programmes to meet safety and PED requirements
• Asset managers seeking to improve operational reliability and reduce unplanned outages

Practical benefits include clearer maintenance guidance, better-informed maintenance intervals, reduced failure risk and improved regulatory compliance.

Related Standards

• EN 12279:2000 (base standard)
• Pressure Equipment Directive (PED) - referenced for compliance guidance
• Relevant EN standards on gas distribution safety and pressure regulators

For organisations implementing EN 12279:2000/A1:2005, focus on structured maintenance planning, thorough record keeping and site safety controls to maximise reliability and compliance.

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2005
6LVWHPLRVNUEHVSOLQRP±1DSUDYH]DUHJXODFLMRWODNDQDSULNOMXþQLKYRGLK±
)XQNFLRQDOQH]DKWHYH
Gas supply systems - Gas pressure regulating installations on service lines - Functional
requirements
Gasversorgungssysteme - Gas-Druckregeleinrichtungen in Anschlussleitungen -
Funktionale Anforderungen
Systemes d'alimentation en gaz - Installations de détente-régulation de la pression de
gaz faisant partie des branchements - Prescriptions fonctionnelles
Ta slovenski standard je istoveten z: EN 12279:2000/A1:2005
ICS:
23.060.40 7ODþQLUHJXODWRUML Pressure regulators
91.140.40 Sistemi za oskrbo s plinom Gas supply systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 12279:2000/A1
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2005
ICS 23.060.40; 91.140.40
English Version
Gas supply systems - Gas pressure regulating installations on
service lines - Functional requirements
Système d'alimentation en gaz - Installations de détente- Gasversorgungssysteme - Gas-Druckregeleinrichtungen in
régulation de pression de gaz faisant partie des Anschlussleitungen - Funktionale Anforderungen
branchements - Prescriptions fonctionnelles
This amendment A1 modifies the European Standard EN 12279:2000; it was approved by CEN on 7 July 2005.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of this
amendment into the relevant 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 amendment 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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12279:2000/A1:2005: E
worldwide for CEN national Members.

Foreword
This European Standard (EN 12279:2000/A1:2005) has been prepared by Technical Committee CEN/TC 234
“Gas supply”, the secretariat of which is held by DIN.
This Amendm
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