Background

PRE-ACTION SYSTEM:

An electrically operated valve, known as the pre-action valve, keeps water from entering pipes. This valve is controlled by flames, heat or smoke detection.

To initiate sprinkler discharge two separate events must take place.

Pre-action systems are most commonly used in freezer warehouses. Pre-action systems act faster than Dry systems , but are usually more expensive and require regular maintenance to ensure reliability.

Pre Action Fire Sprinkler System
Fire Sprinker Pre-Action System Installation
Pre Action Fire Sprinkler System
Fire Sprinker Pre-Action System Installation