Cartridge assembly for valve

摘要

The present invention relates to a cartridge for a valve operable between a first configuration and a second configuration, comprising an activation component (216) operatively connectible with the valve to maintain the valve in the first configuration until a predetermined pressure is exerted on the valve to force the valve toward the second configuration; and a hollow body (210) having a first and second end, the hollow body substantially enclosing the activation component (216) so that the cartridge (230) is replaceable without any contact with the activation component (216), wherein the activation component is a buckling pin configured to buckle when the predetermined pressure is exerted on the valve.