Pressure drop of the flow control orifice plate
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What is the maximum pressure drop that can be achieved with a flow control orifice plate? At what point is it necessary to use multi-stage pressure reduction? If the medium used in the multi-stage pressure reduction process does not meet the requirements (for example, if the medium is viscous and prone to clogging), can a Venturi tube be used as an alternative?
Since there are no international standards for orifice plates used for flow limitation, ISO 5167 is generally used as the basis for calculations. If multi-stage pressure-reduction orifice plates are employed, the manufacturer must carry out the calculations themselves. Since different manufacturers use different calculation standards, the degree of voltage reduction also varies. A venturi tube definitely won’t work; firstly, its pressure-reduction effect is poor, and secondly, it is too large and may not be installable.
The pressure drop of the flow control orifice plate can be found by referring to the HG20570 standard.
Who can contribute this standard?