Patent ID: 6032745
Filing Date: 2000-03-07
Classification: A62C

Abstract:
A fire suppression valve for attachment to a cannister of pressurized fire suppression material, the valve comprising:a housing having a central connection for attachment to the cannister, the central connection communicating with a central chamber having a relatively smaller outlet port on one side and diametrically opposite thereto a concentric relatively larger piston port;a two-stage piston in the central chamber and held in a closed position by a triggering mechanism, the two-stage piston being formed so that, in the closed position, a piston end is disposed in and seals with the outlet port and an actuating piston seals the piston port so that suppression material in the cannister is substantially prevented from escaping;the pressurized fire suppression material serving to bias the two-stage piston toward an open position such that, when the trigger is actuated, the actuating piston carries the two-stage piston to the open position, removing the piston end from the outlet port and releasing the suppression material.