FIRE EXTINGUISHER

摘要

A fire extinguisher comprises an outer pressure vessel (2) containing propellant under higher pressure, and an inner pressure vessel (8) containing extinguishant and communicating at one end with a discharge head (4). A one-way valve (14) permits flow of propellant from the outer pressure vessel (2) into the inner pressure vessel (6) to pressurise the extinguishant for discharge, while preventing flow of extinguishant from the inner to the outer vessel. This permits operation of the extinguisher in any orientation.