Issue D Quartzoid Sprinklers


Trusted Performance From a Corrosion-Resistant Sprinkler

Looking for a fire sprinkler system for your commercial building? Our Issue D quartzoid sprinklers are a great choice for light, ordinary, or extra-hazard commercial occupancies in which high ambient temperatures might be encountered. Tyco® Issue D Quartzoid 5.6K and 8.0K upright and pendent sprinklers are standard-response, standard-coverage, 11-mm, glass bulb-type spray sprinklers for commercial occupancies. Issue D sprinklers have corrosion-resistant coatings intended to extend the life of copper alloy sprinklers.


  • UL and C-UL Listed, FM and LCPB Approved
  • For extra-high and ultra-high temperature ratings (TY3191, TY3296, TY4191, TY4292), see TFP690 for technical information and listing details


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