PREN 12953-6 : DRAFT 2008
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
SHELL BOILERS - PART 6: REQUIREMENTS FOR EQUIPMENT FOR THE BOILER
01-02-2011
12-01-2013
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 General requirements for steam boilers and hot water boilers
4.1 Safeguards (safety valves) against excessive pressure
4.2 Materials for valves, fittings, flanges and bolting
4.3 Protective systems
4.4 Heat supply
4.5 Flue-gas heated economizers
4.6 Drain and blowdown devices
4.7 Water quality
4.8 Water quality protection
5 Special requirements for steam boilers
5.1 Water level indication
5.2 Steam pressure and temperature indication
5.3 Valves for connections
5.4 Feed water supply
5.5 Feed water control
5.6 Limiting devices
5.7 Electrically heated steam boilers
6 Special requirements for hot water boilers
6.1 Hot water generating systems
6.2 Expansion and feed lines for open vented systems
6.3 Water supply
6.4 Water level indication
6.5 Limiting devices
6.6 Vent valves
6.7 Pressure and temperature indication
6.8 Pressure controller
6.9 Discharge from safety valves
6.10 Electrically heated hot water boilers
6.11 Parallel mode of operation of hot water boilers
7 Operational aspects
8 Alarms and monitoring from the boiler plant
Annex A (informative) - Examples of steam and hot water boiler
systems
Annex B (normative) - Dimensioning of expansion space
Annex C (informative) - Aspects of boiler operation
Annex D (informative) - Drain and blowdown devices
Annex E (informative) - Alarms and monitoring from the boiler
plant
Annex ZA (informative) - Relationship between this European Standard
and the Essential Requirements of EU Directive 97/23/EC
Bibliography
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