Firefighting valves like Isolation Gate valves, Check valves Alarm check valves, Zone control valves, Pre-action valves, Pressure educing valves, etc. are the key components of all Firefighting Systems. A fire event can cause untold damage to property. But sometimes, efforts to put out the fire can be just as catastrophic. Water can do as much damage to electronic equipment, paper and other moisture-sensitive items as the fire itself. Where these items are present, it makessense to use a Pre-action deluge valve in the fire protection system.