Residential sidewall fire sprinkler

摘要

A residential sidewall sprinkler and system for a coverage area defined by a pair of parallel vertical walls. The sprinkler includes a body having a passageway defining a K-factor of about 6. The body has an inlet coupled to a fluid supply line and a distal end coupled to a deflector assembly. The deflector assembly includes a face portion with an upper canopy and a lower canopy disposed about the face portion. The sprinkler is mounted to one of the walls to define a ceiling-to-deflector distance ranging from about four inches to about twelve inches. The fluid supply at the inlet is at least at one of a substantially constant flow rate of fluid and substantially constant fluid pressure. The deflector assembly distributes the fluid over the coverage area so as to wet the vertical walls within about twenty-eight inches of the ceiling over the ceiling-to-deflector range.

主权项

1. A residential sidewall sprinkler for mounting to one of two substantially parallel vertical wall surfaces extending between a substantially flat ceiling and a floor to define a coverage area for the sprinkler, the sprinkler comprising:
a body having an inlet and an outlet defining therebetween a passageway defining a K-factor of about 6 and a longitudinal axis, the body having a proximal end for coupling the sprinkler to a fluid supply line, the body having a distal end opposite the proximal end; a deflector assembly having a proximal portion and a distal portion, the deflector assembly being coupled to the distal end of the body such that the proximal end of the deflector is adjacent the distal end of the body, the deflector assembly including:
a face portion distally spaced from the outlet of the body and substantially orthogonal to a first plane and a second plane intersecting along the longitudinal axis, the face portion including a pair of openings and a pair of parallel lateral portions, each of the lateral portions includes a first plurality of undulating portions, and a second plurality of undulating portions disposed about one of the first and second planes, the first and second plurality of undulations defining a concave radius of curvature relative to the distal portion of the deflector assembly, the deflector assembly further including:a first canopy contiguous with the first plurality of undulating portions and a second canopy contiguous with the second plurality of undulating portions, the first and second canopies disposed about the one of the first and second planes to define a channel therebetween in communication with the opening, each of the first and second canopies bounding a respective one of the pair of openings, and each of the first and second canopies extending proximally and distally of the face portion, the second canopy having a distal end including a plurality of tines including at least one tine defined by a distal edge of the second canopy.