Safety valve issues
Thread Content
May I ask what type of safety valve should be used for the nitrogen and hydrogen compressors in ammonia synthesis production: full-opening type or slightly opening type? In particular, how should safety valves for the high-pressure section be selected?
There are guidelines for selecting safety valves, which provide relevant information
A high-pressure safety valve is a type of valve used for safety protection. Its operating element remains in a closed position under external forces; when the pressure of the fluid inside the equipment or pipeline rises above the specified level, the valve opens automatically, allowing the fluid to be discharged outside the system thereby preventing the pressure from exceeding the set limit. Safety valves belong to the category of automatic valves and are primarily used in boilers, pressure vessels, and pipelines to ensure that pressure does not exceed specified levels, thereby playing a vital role in protecting both human safety and the proper operation of equipment. Based on the opening height of the safety valve disc, they can be divided into slightly opened safety valves and fully opened safety valves. The opening stroke height of slightly opened safety valves is: ≤0.05d0 (minimum discharge throat diameter) ； The opening height of a fully open safety valve is ≤0.25d0 (minimum discharge throat diameter).