Using the ASME standards, when calculating the MAWP of a device, is it necessary to use UG44(b) for calculating the flanges?
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If UG-44(b) is used to calculate the MAWP of a flange, it will result in an increase in the flange’s weight class. For those of us in the equipment field, is it necessary to use UG-44(b) to determine the MAWP?
Whether it is necessary to use ASME UG-44(b) for the calculations depends primarily on the specific usage and requirements of your equipment. UG-44(b) can be used to calculate the maximum allowable working pressure (MAWP) of a flange, but it may also result in an increase in the flange’s size class, thereby raising costs. Whether to use it or not depends on a comprehensive assessment of factors such as your equipment’s requirements regarding safety, durability, and cost-effectiveness, as well as the desired control over parameters like flange load and stress. If the operating conditions and working environment for your equipment are rather stringent, or if there are particularly high requirements regarding the strength of the flanges, then it may be necessary to use UG-44(b). .