RO
SR EN 12094-7:2002
Fixed firefighting systems - Components for gas extinguishing systems - Part 7: Requirements and test methods for nozzles for CO2 systems
This European Standard specifies requirements and test methods for nozzles which introduce the extinguishing agent into a CO 2 protected zone. The design of the nozzles will influence discharge rate and thus the pressure drop in the piping network. The extinguishing agent normally arrives at the nozzle in two-phase flow form (liquid-gaseous mixture). It expands into the protected volume to form a gas or a gas-and-dry-ice mixture depending on the nozzle type. This standard should only be used as guidance for testing nozzles which work on different principles.
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Status :
Valid
Approval date : 9/25/2002
Publish date : 9/26/2002
Number of pages : 20
ICS : 13.220.10 Fire-fighting
Technical Committee : 216 - Fire protection equipment
- Amended by SR EN 12094-7:2002/A1:2005