Definition & Operational Usage
A pressure-reducing valve (PRV) is a critical component in fire suppression systems, designed to decrease water pressure to a safe, manageable level for hose lines and nozzles during firefighting operations. Not to be confused with a pressure regulator, which maintains a constant output pressure, a PRV specifically lowers pressure to a predetermined limit, safeguarding both equipment and personnel from the dangers of excessive pressure. In the context of the Incident Command System (ICS), PRVs are essential for maintaining operational safety and effectiveness in high-pressure scenarios.
Category context: Core tactics, command, suppression, ventilation, search, and water supply terminology used on the fireground.
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