EN 88-2:2007

Pressure regulators and associated safety devices for gas appliances - Part 2: Pressure regulators for inlet pressures above 500 mbar up to and including 5 bar

This European Standard specifies the safety, construction and performance requirements for pressure regulators (hereafter referred to as regulators) intended for use with gas burners and gas-burning appliances using fuel gases of the 1st, 2nd and 3rd families. This European Standard covers type testing only. It also provides additional information for the purchaser and user.
This European Standard is applicable to regulators that may be tested independently of gas burners and gas-burning appliances, which have a declared working pressure from above 500 mbar up to and including 5 bar.
This European Standard is also applicable to regulators incorporating safety devices.
NOTE 1   For safety accessories and pressure accessories, the requirements of EN 13611:2000, Annex F also apply.
NOTE 2   Regulators conforming to EN 88-2 fulfil also the requirements of EN 88-1.
Regulators intended to be used on pipe work installations for third family gases are also covered by EN 13785 and EN 13786.
This European Standard is not applicable to:
a)   pressure regulators that are connected directly to mains pipe-work or to a container that maintains a standard distribution pressure;
b)   pressure regulators which use electrical auxiliary energy.
pressure;
b)   pressure regulators which use electrical auxiliary energy.

Druckregler und zugehörige Sicherheitseinrichtungen für Gasgeräte - Teil 2: Druckregler für Eingangsdrücke über 500 mbar bis einschließlich 5 bar

Diese Europäische Norm legt Sicherheits , Konstruktions  und Leistungsanforderungen an Druckregler (nachstehend Regler genannt) fest, die für Gasbrenner und Gasgeräte unter Anwendung von Brenngasen der 1., 2. und 3. Gasfamilie vorgesehen sind. Diese Europäische Norm gilt lediglich für die Typprüfung. Darüber hinaus enthält sie zusätzliche Angaben für Käufer und Anwender.
Diese Europäische Norm gilt für Regler, die unabhängig von Gasbrennern und Gasverbrauchseinrichtungen mit einem deklarierten Betriebsdruck von über 500 mbar bis einschließlich 5 bar geprüft werden können.
Diese Europäische Norm gilt ebenfalls für Regler, die Sicherheitseinrichtungen enthalten.
ANMERKUNG 1   Für die Zubehörteile der Sicherheitseinrichtungen und der Druckregler gelten ebenfalls die Anforderungen von EN 13611:2007, Anhang F.
ANMERKUNG 2   Regler nach EN 88 2 erfüllen auch die in EN 88 1 festgelegten Anforderungen.
Regler, die für Anwendungen an Rohrleitungen für die dritte Gasfamilie vorgesehen sind, werden auch in EN 13785 und EN 13786 erfasst.
Diese Europäische Norm gilt nicht für:
a)   Druckregler, die unmittelbar an eine Hauptversorgungsleitung oder an einen Behälter mit genormtem Verteilungs¬druck angeschlossen sind;
b)   Druckregler, die elektrische Hilfsenergie benötigen.

Régulateurs de pression et dispositifs de sécurité associés pour appareils à gaz - Partie 2 : Régulateurs de pression pour pressions amont comprises entre 500 mbar et 5 bar

La présente Norme européenne spécifie les exigences de sécurité, de construction et de fonctionnement des régulateurs de pression (ci-après désignés par « régulateurs ») destinés à être utilisés avec des brûleurs à gaz et des appareils à gaz utilisant des combustibles gazeux des première, deuxième et troisième familles. La présente Norme européenne ne s'applique qu'aux essais de type. Elle fournit également des informations complémentaires pour l'acheteur et l'utilisateur.
La présente Norme européenne s'applique aux régulateurs ayant une pression d'utilisation déclarée comprise entre 500 mbar et 5 bar, qui peuvent être contrôlés indépendamment des brûleurs à gaz et des appareils à gaz.
La présente Norme européenne s'applique également aux régulateurs incorporant des dispositifs de sécurité.
NOTE 1   En ce qui concerne les accessoires de sécurité et les accessoires sous pression, les exigences de l'Annexe F de l'EN 13611 :2007 s'appliquent également.
NOTE 2   Les régulateurs conformes à l'EN 88-2 répondent également aux exigences de l'EN 88-1.
Les régulateurs destinés à être utilisés sur des installations de tuyauteries pour des gaz de la troisième famille sont également couverts par l'EN 13785 et l'EN 13786.
La présente Norme européenne n'est pas applicable aux :
a)   régulateurs de pression qui sont raccordés directement au réseau de distribution ou à un récipient qui maintient en aval une valeur de pression de distribution normalisée ;
b)   régulateurs de pression qui utilisent une énergie électrique auxiliaire.

Tlačni regulatorji in pripadajoče varnostne naprave za plinske aparate - 2. del: Tlačni regulatorji za vstopne tlake nad 0,5 bar do vključno 5 bar

General Information

• Status: Withdrawn
• Publication Date: 13-Nov-2007
• Withdrawal Date: 11-Oct-2022
• ICS: 23.060.40 - Pressure regulators
• Technical Committee: CEN/TC 58 - Safety and control devices for burners and appliances burning gaseous or liquid fuels
• Drafting Committee: CEN/TC 58/WG 5 - Air/gas ratio controls and zero governers
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Completion Date: 12-Oct-2022
• Directive: 2009/142/EC - DIRECTIVE 2009/142/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 30 November 2009 relating to appliances burning gaseous fuels
• Directive: 90/396/EEC - Appliances burning gaseous fuels
• Mandate: M/071 - Mandate to CEN for standardization in the field of Pressure equipment
• Mandate: M/BC/CEN/89/6 - Standardization request to CEN concerning appliances burning gaseous fuels
• Ref Project: SIST EN 88-2:2008 - Pressure regulators and associated safety devices for gas appliances - Part 2: Pressure regulators for inlet pressures above 500 mbar up to and including 5 bar

Relations

• Replaced By: EN 88-2:2022 - Safety and control devices for gas burners and gas burning appliances - Part 2: Pressure regulators for inlet pressures above 50 kPa up to and including 500 kPa
• Effective Date: 19-Oct-2022
• Revised: FprEN 88-2 - Safety and control devices for gas burners and gas burning appliances - Part 2: Pressure regulators for inlet pressure above 50 kPa up to and including 500 kPa and associated safety devices
• Effective Date: 19-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-januar-2008
7ODþQLUHJXODWRUMLLQSULSDGDMRþHYDUQRVWQHQDSUDYH]DSOLQVNHDSDUDWHGHO
7ODþQLUHJXODWRUML]DYVWRSQHWODNHQDGEDUGRYNOMXþQREDU
Pressure regulators and associated safety devices for gas appliances - Part 2: Pressure
regulators for inlet pressures above 500 mbar up to and including 5 bar
Druckregler und zugehörige Sicherheitseinrichtungen für Gasgeräte - Teil 2: Druckregler
für Eingangsdrücke über 500 mbar bis einschließlich 5 bar
Régulateurs de pression et dispositifs de sécurité associés pour appareils a gaz - Partie
2: Régulateurs de pression pour pression amont supérieure a 500 mbar et inférieure ou
égale a 5 bar
Ta slovenski standard je istoveten z: EN 88-2:2007
ICS:
23.060.40 7ODþQLUHJXODWRUML Pressure regulators
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 88-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2007
ICS 23.060.40
English Version
Pressure regulators and associated safety devices for gas
appliances - Part 2: Pressure regulators for inlet pressures
above 500 mbar up to and including 5 bar
Régulateurs de pression et dispositifs de sécurité associés Druckregler und zugehörige Sicherheitseinrichtungen für
pour appareils à gaz - Partie 2: Régulateurs de pression Gasgeräte - Teil 2: Druckregler für Eingangsdrücke über
pour pression amont supérieure à 500 mbar et inférieure ou 500 mbar bis einschließlich 5 bar
égale à 5 bar
This European Standard was approved by CEN on 8 May 2007.
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 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 Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, 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
© 2007 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 88-2:2007: E
worldwide for CEN national Members.

Contents Page
Foreword. 4
Introduction . 5
1 Scope. 6
2 Normative references . 6
3 Terms and definitions. 7
3.1 Pressure regulator . 7
3.2 Components . 7
3.3 Safety shut-off devices. 9
3.4 Control variables. 10
3.4.1 Reference values. 10
3.4.2 Variables in the controlling process. 11
3.4.3 Possible values of all variables . 11
3.4.4 Terms pertinent to the controlled variable. 12
3.5 Operating features in stable conditions . 12
3.6 Features pertinent to accuracy. 14
3.7 Features pertinent to lock-up behaviour . 15
3.8 Further functional terminology. 16
3.8.1 Pressures pertinent to design of gas pressure regulator. 16
3.8.2 nominal pressure . 17
3.8.3 operating temperature range temperature range at which the pressure regulator
components and fixtures are capable of operating continuously. 17
4 Classification. 17
5 Units of measurement and test conditions . 17
5.1 Units of measurement . 17
5.2 Test conditions. 17
6 Construction requirements. 18
6.1 General. 18
6.2 Construction. 18
6.2.1 General. 18
6.2.2 Breather holes . 18
6.2.3 External visual Indication of the position of the closure member. 18
6.2.4 Parts transmitting actuating forces . 19
6.2.5 Pressure adjustment. 19
6.3 Materials. 19
6.3.1 General. 19
6.3.2 Springs. 19
6.3.3 Requirements for elastomers (including vulcanized rubbers). 19
6.4 Gas connections . 19
6.4.1 General. 19
6.4.2 Connection sizes. 19
6.4.3 Threads . 20
6.4.4 Pressure test nipples (applicable only for outlet connections operating at ≤
500 mbar) . 20
7 Performance requirements . 20
7.1 General. 20
7.2 Strength of housings. 20
7.2.1 Requirement . 20
7.2.2 Performance test. 21
7.3 External and internal leak tightness . 21
7.4 Torsion and bending. 21
7.5 Control classification. 21
7.5.1 General. 21
7.5.2 Control classifications for pressure regulators. 21
7.5.3 Safety shut-off device accuracy group for over-pressure. 22
7.6 Safety devices . 22
7.6.1 Over-pressure safety shut-off device . 22
7.6.2 Under-pressure safety shut-off devices . 23
7.6.3 Bypass. 23
7.6.4 Response time. 23
7.7 Durability of performance . 23
7.7.1 Pressure regulator . 23
7.7.2 Safety slam-shut device . 23
8 Marking, installation and operating instructions. 24
8.1 Marking . 24
8.2 Installation, operating and servicing instructions. 24
8.3 Warning notice . 25
Annex A (informative) Main components for direct acting and pilot controlled pressure
regulators. 26
A.1 Main components of a pressure regulator . 26
A.2 Main components of a gas safety shut-off device. 27
Annex B (informative) Use of ISO 7-1 and EN ISO 228-1 threads for gas connections (see
6.4.3) . 29
Annex C (normative) Performance test methods . 30
C.1 General. 30
C.2 Apparatus and test rig. 30
C.3 Performance tests under stable conditions. 32
C.3.1 General. 32
C.3.2 Determination of a performance curve. 34
C.3.3 Determination of the lock-up pressure. 35
C.3.4 Regulator accuracy class. 36
C.4 Safety shut-off device accuracy group.
...