Dry Sprinkler Systems Print

Dry Sprinkler System Valves

Dry Sprinklers have been specifically designed for areas in which the sprinkler may be subjected to freezing conditions. A dry pipe sprinkler system is a system with automatic sprinkler heads attached to a piping system containing air or nitrogen under pressure. The release of this pressure (caused by the opening of a sprinkler head) 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 of the open sprinkler head. At the same time local and/or central station alarms can activate, along with other integrated system components such as fire alarm notification devices.

Accessory items, such as dry pipe valve accelerators that increase the speed of system operation, and switches used to activate electric alarms, may be used to enhance the system. Valves for the system must be installed in areas not subject to freezing, as this portion of the system does contain water. The system may be equipped with automatic or manual air supply controls and air supervisory devices with appropriate trouble alarms.

Applications include:

  • Unheated Warehouses
  • Parking Garages
  • Store Windows
  • Attic Spaces
  • Loading Docks
  • Covered Exterior Platforms
  • Other areas exposed to freezing temperatures