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BS EN 16304:2022

BS EN 16304:2022

$189.07

Automatic vent valves for gas burners and gas burning appliances

Published By Publication Date Number of Pages
BSI 2022 46
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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 automatic vent valves for burners and appliances burning one or more gaseous fuels, hereafter referred to as “valves”. This document is applicable to valves with declared maximum inlet pressures up to and including 500 kPa and of nominal connection sizes up to and including DN 100. Addition: This document is applicable to: – electrically actuated valves; – valves actuated by fluids where the control valves for these fluids are actuated electrically, but not to any external electrical devices for switching the control signal or actuating energy; – valves fitted with open position indicator switches. 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
12 3 Terms and definitions
13 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
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
14 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
6.2.101 Design
6.2.102 Open position indicator switch
6.2.103 Controls assembled to a valve
6.3 Materials
6.3.1 General material requirements
6.3.2 Housing
6.3.3 Zinc alloys
6.3.4 Springs
15 6.3.5 Resistance to corrosion and surface protection
6.3.6 Impregnation
6.3.7 Seals for glands for moving parts
6.3.101 Springs providing opening force
6.3.102 Closure members
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
16 6.4.8 Strainers
6.5 Electrical parts of the control
6.5.1 General
6.5.2 Switching elements
6.5.3 Electrical components
6.5.3.1 Performance of electrical components
6.5.3.2 Tests
6.5.3.3 Sensing element
6.5.3.4 Gas controls employing electrical components in the gas circuit
6.6 Protection against internal faults for the purpose of functional safety
6.101 Pneumatic and hydraulic actuating mechanisms
7 Performance
7.1 General
17 7.2 Leak-tightness
7.3 Torsion and bending
7.4 Rated 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 Opening function
7.101.1 Requirement
7.101.2 Test of opening function
18 7.102 Opening force
7.102.1 Requirement
7.102.2 Test of opening force
7.103 Opening time
7.103.1 Requirement
7.103.2 Test of opening time
7.104 Delay time and closing time
7.104.1 Requirement
7.104.2 Test of delay time and closing time
19 7.105 Open position indicator switch
7.105.1 Requirement
7.105.2 Test of open position indicator switch
7.106 Endurance
7.106.1 Requirement
7.106.2 Endurance test
20 7.106.3 Endurance test for open position indicator switch
8 Electrical requirements
8.1 General
8.2 Protection by enclosure
21 8.101 Switches
8.102 Plug connections
8.103 Power saving circuits
8.103.1 Closing of the valve
8.103.2 Overheating
8.103.3 Test of power-saving circuits
22 9 Electromagnetic compatibility (EMC)
9.1 Protection against environmental influences
9.2 Supply voltage variations below 85 % of rated voltage
9.3 Voltage dips and interruptions
9.3.1 Requirements
9.3.2 Test
9.4 Supply frequency variations
9.5 Surge immunity test
9.6 Electrical fast transient/burst
9.7 Immunity to conducted disturbances induced by radio frequency fields
9.8 Immunity to radiated disturbances induced by radio frequency fields
9.9 Electrostatic discharge tests
9.10 Power frequency magnetic field immunity tests
9.11 Harmonics and interharmonics including mains signalling at a.c. power port, low frequency immunity tests
23 10 Marking, instructions
10.1 Marking
10.2 Instructions
24 10.3 Warning notice
25 Annex A (informative)Abbreviations and symbols
26 Annex B (informative)Leak-tightness test for gas controls – volumetric method
27 Annex C (informative)Leak-tightness test for gas controls – pressure loss method
28 Annex D (normative)Calculation of pressure loss into leakage rate
29 Annex E (normative)Electrical/electronic component fault modes
30 Annex F (normative)Additional requirements for safety accessories and pressure accessories as defined in EU Directive 2014/68/EU
31 Annex G (normative)Materials for pressurized parts
32 Annex H (normative)Additional materials for pressurized parts
33 Annex I (normative)Requirements for controls used in DC supplied burners and appliances burning gaseous or liquid fuels
34 Annex J (normative)Method for the determination of a Safety Integrity Level (SIL)
35 Annex K (normative)Method for the determination of a Performance Level (PL)
K.1 Scope
K.2 Normative references
K.3 Terms and definitions
K.4 Performance
K.4.1 Operation mode
K.4.2 PL and field data evaluation
K.4.3 Hardware failure tolerance (HFT)
K.4.4 Common cause failure (CCF)
K.4.4.1 General
K.4.4.2 Estimation of effect of CCF
36 K.4.5 Safe failure fraction (SFF)
K.4.6 Determination of the B10d value
K.4.6.1 Requirements
K.4.6.2 Tests
37 K.4.7 Determination of Performance Level (PL)
K.4.8 PFHD values for structures consisting of two controls
K.5 Marking, instructions
K.5.1 Marking
K.5.2 Instructions
K.5.3 Warning notice
38 Annex L (informative)Relationship between Safety Integrity Level (SIL) and Performance Level (PL)
39 Annex M (normative)Reset functions
40 Annex N (informative)Guidance document on Environmental Aspects
41 Annex O (normative)Seals of elastomer, cork and synthetic fibre mixtures
42 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 16304:2022
$189.07