The Model DH56 family of sprinklers includes quick-response, extended-coverage sidewall units designed for use in light hazard applications in accordance with NFPA 13. The family includes the Model DH56 alone, FP (escutcheon) recessed, F2 (escutcheon) recessed and concealed with SWC cover plate. DH56’s 3mm frangible glass bulb enables the sprinkler to apply water to a fire sooner than standard response sprinklers of the same temperature rating. (Image is a CAD drawing.)
Reliable Automatic Sprinkler Co.