BS ISO 23551-5:2023 – TC
$217.84
Tracked Changes. Safety and control devices for gas burners and gas-burning appliances. Particular requirements – Manual gas valves
Published By | Publication Date | Number of Pages |
BSI | 2023 | 93 |
PDF Catalog
PDF Pages | PDF Title |
---|---|
52 | National foreword |
57 | Foreword |
58 | Introduction |
59 | 1 Scope 2 Normative references 3 Terms and definitions |
61 | 4 Classification 4.1 Classes of controls 4.2 Groups of controls 4.3 Types of DC supplied controls 4.4 Classes of controls functions 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 |
62 | 6.2.5 Screwed fastenings 6.2.6 Moving parts 6.2.7 Sealing caps 6.2.8 Dismantling and reassembling for servicing and/or adjustment 6.2.9 Auxiliary channels and orifices 6.2.10 Pre-setting device 6.2.11 Operating parts of manual gas valves 6.2.12 Seating force 6.2.13 Tapered plug cavity |
63 | 6.3 Materials 6.3.1 General material requirements 6.3.2 Housing 6.3.3 Springs providing closing force and sealing force 6.3.4 Resistance to corrosion and surface protection 6.3.5 Impregnation 6.3.6 Seals for glands for moving parts 6.3.7 Jointing |
64 | 6.3.8 Closure members 6.4 Connections 6.5 Gas controls employing electrical components in the gas way 6.6 Component parts 6.6.1 General 6.6.2 Turning angles |
65 | 6.6.3 Lubrication 6.6.4 Stops 6.6.5 Safety lock 6.6.6 Bearing seal 6.6.7 Pre-setting devices 6.6.8 Compensation means for manual gas valves |
66 | 6.6.9 Spring effect in manual gas valves 6.6.10 Manual gas valves with two or more “on” positions 6.7 Appliance connector valves |
67 | 7 Performance 7.1 General 7.2 Leak-tightness 7.3 Torsion and bending 7.4 Rated flow rate 7.4.1 General 7.4.2 Requirements 7.4.3 Test 7.5 Durability 7.5.1 Elastomers in contact with gas 7.5.2 Resistance of elastomers to lubricants and gases |
68 | 7.5.3 Marking resistance 7.5.4 Resistance to scratching 7.5.5 Resistance to humidity 7.6 Functional requirements 7.6.1 Requirements for operating torque |
70 | 7.6.2 Test for operating torque 7.6.3 Requirements for operating force 7.6.4 Requirements for operating torque for safety lock |
71 | 7.6.5 Adequacy of seating means 7.7 Endurance 7.7.1 Requirement 7.7.2 Endurance test |
72 | 7.7.3 Gas burner valves |
73 | 7.7.4 Food service equipment delta C manual gas valves 8 Electrical equipment 9 EMC/Electrical requirements |
74 | 10 Marking, installation and operating instructions 10.1 Marking 10.1.1 Open and closed position of a manual gas valve 10.1.2 Marking of positions 10.1.3 Marking for delta C valves |
75 | 10.1.4 Marking for appliance connector valves 10.2 Installation and operating instructions 10.3 Warning notice |
76 | Annex A (informative) Leak-tightness test — Volumetric method |
77 | Annex B (informative) Leak-tightness test — Pressure-loss method |
78 | Annex C (normative) Conversion of pressure loss into leakage rate |
79 | Annex D (normative) Gas quick connector (GQC) |
80 | Annex E (normative) Elastomers/requirements resistance to lubricants and gas |
81 | Annex F (normative) Specific regional requirements in European countries |
82 | Annex G (normative) Specific regional requirements in Canada and USA |
84 | Annex H (normative) Specific regional requirements in Japan |
85 | Annex I (informative) Examples of manual gas shut-off valves |
91 | Bibliography |