• Wet Sprinkler Systems
A sprinkler system employing automatic sprinklers that are attached to a piping system that contains water and connected to a water supply so that water discharges immediately from sprinklers opened by heat from a fire.
• Dry Sprinkler Systems
A sprinkler system employing automatic sprinklers that are attached to a piping system containing air or nitrogen under pressure, the release of which (as from the opening of a sprinkler) permits the water pressure to open a valve known as a dry pipe valve, and the water then flows into the piping system and out the opened sprinkler.
• Pre-action Systems
A sprinkler system employing automatic sprinklers that are attached to a piping system that contains air that might or might not be under pressure, with a supplemental detection system installed in the same areas as the sprinklers.
• Deluge Systems
A sprinkler system employing open sprinklers that are attached to a piping system that is connected to a water supply through a valve that is opened by the operation of a detection system installed in the same areas as the sprinklers. When this valve opens, water flows into the piping system and discharges from all sprinklers attached thereto.
• Antifreeze Sprinkler System
A wet pipe sprinkler system employing automatic sprinklers that are attached to a piping system that contains an antifreeze solution and that are connected to a water supply. The antifreeze solution is discharged, followed by water, immediately upon operation of sprinklers opened by heat from a fire.
• Special Hazard Systems
Suppression systems that are designed for a specific application utilizing certain inert gases. These type of systems are mostly seen in computer server rooms or in small areas where water is not desirable.
• Fire Pumps and Controllers
A device that is connected between the inlet side of the fire water line and sprinkler riser. It is driven either by an electric or diesel powered motor. Fire Pumps are installed where the water pressure in a given area is not sufficient for a properly designed sprinkler system.
