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BS EN 125:2022

BS EN 125:2022

$167.15

Flame supervision devices for gas burning appliances. Thermoelectric flame supervision devices

Published By Publication Date Number of Pages
BSI 2022 44
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EN 13611:2019, Clause 1 applies with the following modification and addition: Modification: The 1st paragraph of EN 13611:2019, Clause 1 is replaced by: This document specifies the safety, design, construction, and performance requirements and testing for thermoelectric flame supervision devices, energized by a thermocouple intended for use with burners and appliances burning one or more gaseous fuels, hereafter referred to as “controls”. This document is applicable to controls with declared maximum inlet pressures up to and including 500 kPa and of nominal connection sizes up to and including DN 50. Addition: This document is not applicable to: – the thermocouple; – controls which use auxiliary energy (e.g. electrical energy supplied externally). The 4th paragraph of EN 13611:2019, Clause 1 is removed.

PDF Catalog

PDF Pages PDF Title
2 undefined
11 1 Scope
2 Normative references
3 Terms and definitions
12 4 Classification
4.1 Classes of control
4.2 Groups of control
4.3 Classes of control functions
4.4 Types of DC supplied controls
5 Test conditions and uncertainty of measurements
13 6 Design and construction
6.1 General
6.2 Mechanical parts of the control
6.2.1 Appearance
6.2.2 Holes
6.2.3 Breather holes
6.2.4 Screwed fastenings
6.2.5 Jointing
6.2.6 Moving parts
6.2.7 Sealing caps
6.2.8 Dismantling and reassembly
6.2.9 Auxiliary canals and orifices
6.2.10 Presetting device
6.3 Materials
6.3.1 General material requirements
14 6.3.2 Housing
6.3.3 Zinc alloys
6.3.4 Springs
6.3.5 Resistance to corrosion and surface protection
6.3.6 Impregnation
6.3.7 Seals for glands for moving parts
6.4 Gas connections
6.4.1 Making connections
6.4.2 Connection sizes
6.4.3 Threads
6.4.4 Union joints
6.4.5 Flanges
6.4.6 Compression fittings
6.4.7 Nipples for pressure test
6.4.8 Strainers
6.5 Electronic parts of the control
15 6.6 Protection against internal faults for the purpose of functional safety
7 Performance
7.1 General
7.2 Leak-tightness
7.2.1 Requirements
16 7.2.2 Test
7.2.2.1 General
7.2.2.2 External leak-tightness
7.2.2.3 Internal leak-tightness
7.3 Torsion and bending
7.4 Rated flow rate
7.4.1 Requirement
17 7.4.2 Test
7.4.3 Conversion of air flow rate
7.5 Durability
7.6 Performance tests for electronic controls
7.7 Long-term performance for electronic controls
7.8 Data exchange
7.101 Operating torque and force
7.101.1 Requirement
18 7.101.2 Test for operating torque and force
7.102 Interlocks
7.102.1 Requirement
7.102.2 Test for interlocks
7.103 Closing current
7.103.1 Requirement
7.103.2 Test for closing current
19 7.104 Sealing force
7.104.1 Requirement
7.104.1.1 Requirement in case of gas flow in the same direction of closing member
7.104.1.2 Requirement in case of gas flow in opposite direction of closing member
7.104.2 Test for sealing force
7.104.2.1 Test for sealing in case of gas flow in the same direction of closing member
7.104.2.2 Test for sealing force in case of gas flow in opposite direction of closing member
20 7.105 Endurance
7.105.1 Requirement
7.105.2 Endurance test
7.105.2.1 Static endurance test
7.105.2.2 Dynamic endurance test
21 8 EMC/Electrical requirements
9 Electromagnetic compatibility (EMC)
10 Marking, instructions
10.1 Marking
10.2 Instructions
22 10.3 Warning notice
23 Annex A (informative)Abbreviations and Symbols
24 Annex B (informative)Leak-tightness test for gas controls − volumetric method
25 Annex C (informative)Leak-tightness test − pressure loss method
26 Annex D (normative)Calculation of pressure loss into leakage rate
27 Annex E (normative)Electrical/electronic component fault modes
28 Annex F (normative)Additional requirements for safety accessories and pressure accessories as defined in EU Directive 2014/68/EU
29 Annex G (normative)Materials for pressurized parts
30 Annex H (normative)Additional materials for pressurized parts
31 Annex I (normative)Requirements for controls used in DC supplied burners and burning gaseous or liquid fuels appliances
32 Annex J (normative)Method for the determination of the Safety Integrity Level (SIL)
33 Annex K (normative)Method for the determination of a Performance Level (PL)
34 Annex L (informative)Relationship between Safety Integrity Level (SIL) and Performance Level (PL)
35 Annex M (normative)Reset functions
36 Annex N (informative)Guidance document on Environmental Aspects
37 Annex O (normative)Seals of elastomers, cork and synthetic fibre mixtures
38 Annex AA(informative)Types of flame supervision devices
40 Annex ZA (informative)Relationship between this European Standard and the Essential Requirements of Regulation (EU) 2016/426 aimed to be covered

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BS EN 125:2022
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