SPRAY HEAD FOR GASEOUS FIRE EXTINGUISHING EQUIPMENT HAVING SILENCING FUNCTION

摘要

PROBLEM TO BE SOLVED: To provide a spray head for gaseous fire extinguishing equipment configured to improve a noise reduction rate by a small spray head.SOLUTION: A spray head 1 with a silencing means in gaseous fire extinguishing equipment using fire extinguishing gas is installed in a fire-extinguishing object area for releasing the fire extinguishing gas. The silencing means includes a block-shaped silencing member 4 that is disposed on the outlet section of an orifice 31 and made of a porous material through which gas can flow. An end face of one side of the silencing member 4 that is opened to atmosphere is supported by a spray head body 2 via a ring member 5 coming into contact with a peripheral edge of the end face and a bolt 6 coming into contact with a central part of the end face.