At what temperature is piping for a dry sprinkler system required to be maintained?

For a dry sprinkler system, the temperature of the piping must be maintained at or above 40 degrees Fahrenheit to prevent the potential for water freezing within the system. Dry sprinklers are designed to be used in environments where the temperature can drop below freezing, and the piping is filled with air or an inert gas instead of water.

If the temperature falls below the specified threshold, ice may form inside the pipes, compromising the system's integrity and its ability to function effectively in the event of a fire. Maintaining the pipings' temperature at or above 40 degrees ensures that the system remains operational and reliable, meeting safety standards and preventing freezing-related failures.