Process Engineering Division – Instrumentation and Automation Section – Daily Question – Question from 2020-07-22
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Process Engineering Section – Instrumentation and Automation Section – Daily Question – Question No. 2020-07-22: Discussion question: 184. Among the two throttling devices, orifice plates and Venturi tubes, which one has a greater pressure loss when the differential pressure is the same? When the pipe diameter and differential pressure are the same, which one has a larger flow rate?
The orifice plate results in high pressure loss, while the venturi achieves high flow rates
The orifice plate has high pressure loss, while the venturi achieves a high flow rate
For the same differential pressure, the pressure loss of an orifice plate is 3 to 5 times greater than that of a Venturi tube. When the pipe diameter and differential pressure are the same, the Venturi tube has a higher flow coefficient, and thus a higher flow rate.
The orifice plate has high pressure loss, while the venturi achieves a high flow rate
For the same differential pressure, the pressure loss of an orifice plate is 3 to 5 times greater than that of a Venturi tube. When the pipe diameter and differential pressure are the same, the Venturi tube has a higher flow coefficient, and thus a higher flow rate.
For the same differential pressure, the pressure loss of an orifice plate is 3 to 5 times greater than that of a Venturi tube. When the pipe diameter and differential pressure are the same, the Venturi tube has a higher flow coefficient, and thus a greater flow rate.