UNI EN 12259-2 : 2006
Current
The latest, up-to-date edition.
FIXED FIREFIGHTING SYSTEMS - COMPONENTS FOR SPRINKLER AND WATER SPRAY SYSTEMS - PART 2: WET ALARM VALVE ASSEMBLIES
26-07-2006
Foreword
1 Scope
2 Normative references
3 Definitions
4 Wet alarm valve assembly construction and performance
5 Retard chamber construction and performance
6 Marking
7 Instructions for fitting and operation
8 Evaluation of conformity
Annex A (normative) Fire exposure test for body and cover
Annex B (normative) Strength test for body and cover
Annex C (normative) Performance tests
Annex D (normative) Fatigue test for springs and diaphragms
Annex E (normative) Endurance tests
Annex F (normative) Resistance to ageing test for non-metallic
components (excluding gaskets and seals)
Annex G (normative) Resistance to adhesion test for sealing
assembly elements
Annex H (normative) Determination of pressure loss due to
hydraulic friction loss
Annex I (normative) Leakage resistance test
Annex J (normative) Strength test for retard chambers
Annex K (informative) Typical testing schedule and example
of test specimen numbers for wet alarm valve
assemblies and retard chambers (only for conventional
design)
Annex L (informative) Recommendations for type approval
testing
Annex M (informative) Attestation of conformity
Annex ZA (informative) Clauses of this European Standard
addressing the provisions of the EU Construction
Products Directive
Bibliography
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