Cartridge assembly for valve

摘要

A pressure relief device for a system containing a pressurized fluid, comprising a rotatable plug engageable with the system to expose the plug to the pressurized fluid, the fluid acting on the plug to rotate the plug from a closed position to an open position; an activation component operatively connectible to the plug, the activation component configured to prevent the plug from rotating until a predetermined pressure is exerted on the plug; a cartridge (230) having a hollow body with a first and second end, the hollow body substantially enclosing the activation component so that the cartridge and the activation component are replaceable without any contact with the activation component and without replacing the plug; and a support member (226,227) configured to receive the cartridge to operatively connect the activation component with the plug.