Safety valves are the ultimate protection device for tanks and pipelines. They prevent pressure limits being exceeded once all automatic control and monitoring equipment has failed.
The spring-loaded full-stroke safety valves with tested components can be provided with flanged connection. The features could be a closed spring cap or an open spring cap for better cooling of the spring.
Full lift safety valves open instantly up to maximum lift within a pressure rise of 5 %. Because of their instant opening they are used where suddenly larger flow volumes or fast pressure rises may occur. They are mainly used for relieving pressure in vapours and gases.