SELF-SEALING SPRINKLER SEAL AND METHODS

摘要

An automatic fire protection sprinkler assembly and a method of sealing includes a sprinkler frame having an inlet, an outlet, an internal passageway extending between the inlet and the outlet, and a sealing surface formed about the outlet. The assembly also includes a thermally responsive trigger and a seal assembly disposed between the sealing surface and the thermally responsive trigger. The seal assembly includes a body having an inner surface defining an internal chamber. The inner surface has a portion disposed relative to the sealing surface such that a fluid disposed in the internal chamber and acting on the portion of the inner surface provides a sealing force in the direction of the sealing surface.

主权项

1. An automatic fire protection sprinkler assembly comprising:
a sprinkler frame having an inlet, an outlet and an internal passageway extending from the inlet and the outlet, the frame including a sealing surface formed about the outlet; a deflector member spaced from the outlet; a seal assembly for sealing the internal passageway, the seal assembly including a body having a proximal end, a distal end and a wall circumscribed about a central axis to define an outer surface and an inner surface forming an internal chamber, the wall defining an opening at the proximal end of the body exposing the internal chamber to the internal passageway and a floor at the distal end of the body to enclose the chamber; and a thermally responsive trigger disposed between the seal assembly and the deflector member to support the seal assembly in the outlet such that a portion of the proximal end of the body engages the sealing surface to form a fluid tight seal with the internal passageway in fluid communication with the internal chamber.