I would like to ask about the orifice ratio of the flow restriction orifice plate
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I wonder what the typical range of orifice ratios for flow restriction orifice plates is? I heard that it can be anywhere between 0.1 and 0.9 – is that correct?
The requirements are a bit lower than those for orifice plates; if we follow the strict requirements of orifice plates, it becomes too demanding!
The orifice size ratio of an orifice plate is actually related to the accuracy of measurements taken with that orifice plate. The smaller the orifice ratio of the orifice plate, meaning that the diameter of the circular hole in the orifice plate is smaller relative to the diameter of the pipe, the greater the pressure difference generated and thus the greater the pressure loss; as a result, the measurement accuracy of the orifice plate increases. Conversely, the larger the orifice ratio, the smaller the pressure difference caused by the orifice plate, and the lower the measurement accuracy. Therefore, an appropriate orifice ratio must be selected to achieve a relatively good balance between pressure loss and accuracy; generally, the orifice ratio for orifice plates is 0. 55~ 0. 65, but in some processing scenarios it is required that the pressure loss be as low as possible (pressure loss is related to energy consumption, so it is also very important); the aperture ratio can reach 0. Around 73.