Rounding value of differential pressure when calculating orifice plate
Thread Content
In orifice plate calculations, what are the requirements for general rounding of differential pressure? Is there a value table for rounding values?
Generally multiples of 4, 4, 8, 16, 32, 64
I think they are like this in the design institute: The full-scale differential pressure of the orifice plate is generally 25kPa. If the β value does not meet (0.2-0.7) or the pressure loss does not meet the requirement, it can be replaced by 50kPa (when the β value does not meet the requirement) or 10kPa (when the pressure loss does not meet the requirement). ； If none of the above three differential pressure levels work, consult a process professional to discuss the pressure loss value, enlarge the pressure loss value, or adjust the flow value. ； If the process cannot be changed at all, it seems that if it reaches 5, it will be rounded off if it reaches 10, such as 20kPa, 30kPa, etc.