FAST RESPONSE SPRINKLER HEAD AND FIRE EXTINGUISHING SYSTEM

摘要

A fast response, upright sprinkler head includes a body having a central orifice through which fire extinguishing fluid is expelled through an outlet end. A yoke extends beyond the outlet end of the sprinkler body and is connected at its apex to a deflector. A fusible trigger assembly is coupled to the yoke and the outlet end of the sprinkler head. The deflector is formed with a planar member having a skirt depending in an outward direction at a pre-selected angle from the vertical, and an annular ledge extending horizontally from the skirt. The skirt has a plurality of through-holes. The angle of the skirt, as well as the through-holes, alter the trajectory of the fluid to provide droplets capable of penetrating the fire plume and reaching the fire source.