AN UPRIGHT, EARLY SUPPRESSION FAST RESPONSE SPRINKLER

摘要

An upright ESFR sprinkler includes a generally tubular body, at least one frame arm, a closure assembly, an unactuated heat trigger assembly and a deflector assembly with a K-factor greater than 14, and preferably 16.8. The passageway extends between inlet and outlet openings. The closure is positioned proximate the outlet so as to occlude the passageway with a Bellville seal being. An ejection spring is coupled to the closure assembly.