SPECIAL APPLICATION SPRINKLER FOR USE IN FIRE PROTECTION
A sprinkler having a design such that they can be arrayed where the coverage of each exceeds 80 square feet - preferably less than 200 square feet in extra hazard or high piled storage environments up to ceiling heights of 25 feet or greater, including ceiling heights of 35-40 feet. Specifically, in its preferred embodiment each sprinkler is a low pressure sprinkler (e.g., 7-10 psi); has a nominal K factor of 25 or greater and preferably in the range of 18-40; has an RTI greater than 101 m<SUP>1/2</SUP> s<SUP>1/2</SUP> and includes a deflector which creates large drops; and meets NFPA-13 standards.