EN 88-2:2022+A1:2024

SLOVENSKI STANDARD
01-marec-2025
Nadomešča:
SIST EN 88-2:2022
Varnostne in nadzorne naprave za plinske gorilnike in plinske aparate - 2. del:
Regulatorji tlaka za vstopne tlake nad 50 kPa do vključno 500 kPa (vključno z
dopolnilom A1)
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
Sicherheits- und Regeleinrichtungen für Gasbrenner und Gasgeräte - Teil 2: Druckregler
für Eingangsdrücke über 50 kPa bis einschließlich 500 kPa
Dispositifs de sécurité et de contrôle pour les brûleurs à gaz et appareils utilisant des
combustibles gazeux - Partie 2 : Régulateurs de pression pour pressions amont
comprises entre 50 kPa et 500 kPa
Ta slovenski standard je istoveten z: EN 88-2:2022+A1:2024
ICS:
23.060.40 Tlačni regulatorji Pressure regulators
27.060.20 Plinski gorilniki Gas fuel burners
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 88-2:2022+A1
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2024
EUROPÄISCHE NORM
ICS 23.060.40
English Version
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
Dispositifs de sécurité et de contrôle pour les brûleurs Sicherheits- und Regeleinrichtungen für Gasbrenner
à gaz et appareils utilisant des combustibles gazeux - und Gasgeräte - Teil 2: Druckregler für Eingangsdrücke
Partie 2 : Régulateurs de pression pour pressions über 50 kPa bis einschließlich 500 kPa
amont comprises entre 50 kPa et 500 kPa
This European Standard was approved by CEN on 8 August 2022 and includes Amendment 1 approved by CEN on 3 July 2024.

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, Türkiye 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
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 88-2:2022+A1:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 5
Introduction . 6
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 9
4 Classification . 14
4.1 Classes of control . 14
4.2 Groups of control . 14
4.3 Classes of control functions . 14
4.4 Types of DC supplied controls . 15
5 Test conditions and uncertainty of measurements . 15
6 Design and construction . 15
6.1 General . 15
6.2 Mechanical parts of the control . 15
6.2.1 Appearance . 15
6.2.2 Holes . 15
6.2.3 Breather holes . 15
6.2.4 Screwed fastenings . 15
6.2.5 Jointing . 15
6.2.6 Moving parts . 15
6.2.7 Sealing caps . 15
6.2.8 Dismantling and reassembly . 15
6.2.9 Auxiliary canals and orifices . 15
6.2.10 Presetting device . 16
6.2.101 External visual indication of the position of the closure member . 16
6.2.102 Parts transmitting actuating forces . 16
6.2.103 Adjustments . 16
6.2.104 Integral safety shut-off device . 16
6.2.105 Resistance to pressure . 16
6.2.106 Signal tube connections . 17
6.2.107 Creep relief device . 17
6.3 Materials . 17
6.3.1 General material requirements . 17
6.3.2 Housing . 18
6.3.3 Zinc alloys . 18
6.3.4 Springs . 18
6.3.5 Resistance to corrosion and surface protection . 18
6.3.6 Impregnation . 18
6.3.7 Seals for glands for moving parts . 18
6.4 Gas connections . 18
6.5 Electrical parts of the control . 18
6.5.1 General . 18
6.5.2 Switching elements . 18
6.5.3 Electrical components . 18
6.6 Protection against internal faults for the purpose of functional safety . 18
7 Performance . 18
7.1 General . 18
7.2 Leak-tightness . 19
7.2.1 Requirements . 19
7.2.2 Tests . 19
7.3 Torsion and bending . 19
7.4 Rated flow rate . 19
7.4.1 Requirements . 19
7.4.2 Test . 19
7.4.3 Conversion of air flow rate . 20
7.5 Durability. 20
7.5.1 Elastomers in contact with gas . 20
7.5.2 Marking . 20
7.5.3 Resistance to scratching . 20
7.5.4 Resistance to humidity . 20
7.6 Performance tests for electronic controls . 20
7.7 Long-term performance for electronic controls . 20
7.8 Data exchange . 20
7.101 Pressure regulator performance . 20
7.101.1 General . 20
7.101.2 General test procedure . 20
7.102 Safety devices . 26
7.102.1 Over-pressure safety shut-off devices . 26
7.102.2 Under-pressure safety shut-off devices . 30
7.102.3 Endurance of safety device . 30
8 Electrical requirements .
...