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The safety valve is installed on the pipeline of the pressure source for the container, and its set pressure is lower than the container’s design pressure. So, it’s okay even if the steam pressure in the pipeline temporarily exceeds the container’s design pressure? ? Is it still necessary that the discharge pressure of the safety valve be lower than the design pressure of the container?
The design pressure of the container >= the setting pressure of the safety valve; these values comply with the relevant standards. The safety valves and piping are designed in accordance with the standards, taking into account parameters such as flow rate and back pressure. According to you, when steam is released and the pressure in the container exceeds its design pressure, does that indicate a problem with the safety valve or the piping design?
Located upstream of the container, the setting pressure must not be greater than the container’s design pressure. The relief pressure and the setting pressure (opening pressure) are not the same thing; the relief pressure is the pressure of the safety valve at the time of release, usually 1.1 times the container’s design pressure, and 1.21 times in the event of a fire. The exact value depends on the relevant standards
Located upstream of the container, the setting pressure must not be greater than the container’s design pressure. The relief pressure and the setting pressure (opening pressure) are not the same thing; the relief pressure is the pressure of the safety valve at the time of release, usually 1.1 times the container’s design pressure, and 1.21 times in the event of a fire. The exact value depends on the relevant standards