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BS ISO 23551-6:2021 – TC:2022 Edition

BS ISO 23551-6:2021 – TC:2022 Edition

$186.33

Tracked Changes. Safety and control devices for gas burners and gas-burning appliances. Particular requirements – Thermoelectric flame supervision controls

Published By Publication Date Number of Pages
BSI 2022 62
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This document specifies safety, constructional, and performance and testing requirements for thermoelectric flame supervision controls, energized by a thermocouple, intended for use with gas burners and gas-burning appliances, hereafter referred to as “ controls”.

This document applies to thermoelectric flame supervision controls for gas burners and gas-burning appliances of nominal connection size up to, and including DN 50, that can be used and tested independently of these appliances.

These thermoelectric flame supervision controls are suitable for fuel gases, such as natural gas, manufactured gas or liquefied petroleum gas (LPG) at inlet pressures up to and including 50 kPa. It is not applicable to corrosive and waste gases.

This document covers type testing only.

This document is not applicable to:

  1. the thermocouple; and

  2. controls which use auxiliary energy (e.g. electrical energy supplied externally).

PDF Catalog

PDF Pages PDF Title
1 30451996
35 A-30401686
36 National foreword
41 Foreword
42 Introduction
43 1 Scope
2 Normative references
3 Terms and definitions
44 4 Classification
4.1 Classes of controls
4.2 Groups of controls
4.3 Types of DC supplied controls
4.4 Classes of control functions
45 5 Test conditions and tolerances
6 Construction
6.1 General
6.2 Construction requirements
6.2.1 Appearance
6.2.2 Holes
6.2.3 Breather holes
6.2.4 Vent limiter
6.2.5 Screwed fastenings
6.2.6 Moving parts
6.2.7 Sealing caps
6.2.8 Disassembling and assembling for servicing and/or adjustment for controls
6.2.9 Auxiliary channels and orifices
6.2.10 Pre-setting device
46 6.3 Materials
6.4 Connections
6.4.1 General
6.4.2 Connection sizes
6.4.3 Connection types
6.4.4 Threads
6.4.5 Union joints
6.4.6 Flanges
6.4.7 Compression fittings
6.4.8 Flare connections
6.4.9 Nipples for pressure tests
6.4.10 Strainers
6.4.11 Gas connections by GQC
6.5 Gas controls employing electrical components in the gas way
47 7 Performance
7.1 General
7.2 Leak-tightness
7.2.1 General
7.2.2 Requirements
7.2.3 Test
48 7.3 Torsion and bending
7.4 Rated flow rate
7.5 Durability
7.6 Functional requirements
7.6.1 Operating torque and force
49 7.6.2 Interlocks
7.6.3 Sealing force
50 7.6.4 Closing current
7.7 Endurance
7.7.1 Requirements
7.7.2 Endurance test
51 7.8 Vibration test
8 Electrical equipment
9 Electromagnetic compatibility (EMC)
10 Marking, installation and operation instructions
10.1 Marking
52 10.2 Installation and operating instructions
10.3 Warning notice
53 Annex A (informative) Leak-tightness test — Volumetric method
54 Annex B (informative) Leak-tightness test — Pressure-loss method
55 Annex C (normative) Conversion of pressure loss into leakage rate
56 Annex D (normative) Gas quick connector (GQC)
57 Annex E (normative) Elastomers/requirements resistance to lubricants and gas
58 Annex F (normative) Specific regional requirements in European countries
59 Annex G (normative) Specific regional requirements in Canada and USA
60 Annex H (normative) Specific regional requirements in Japan
61 Annex I (informative) Types of flame supervision controls

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BS ISO 23551-6:2021 - TC
$186.33