What is a quick response sprinkler?
Quick response sprinklers are those which are tested under the same product testing criteria as standard sprinklers, but also exhibit the fast response characteristics of listed residential sprinklers. Some manufacturers developed these sprinklers by inserting the residential sprinkler operating mechanism into a standard sprinkler frame. Other manufacturers successfully submitted residential sprinklers to the laboratory for testing under the criteria for standard sprinklers. In both cases, Underwriters Laboratories designated these special sprinklers as quick response sprinklers. By establishing a separate listing category, UL has identified listed quick response sprinklers as being different from both standard and residential sprinklers. Unlike the residential sprinklers, quick response sprinklers are not required to have special cooling and distribution abilities.
