Does a Pressure Regulator Maintain Equal Flow Rates at Inlet and Outlet?

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SUMMARY

The flow rate at the inlet of a pressure regulator is equal to the flow rate at the outlet, as mass is conserved in fluid dynamics. This principle holds true provided there are no leaks on the high-pressure side of the system. The discussion emphasizes that all fluid exiting the high-pressure tank will do so at a lower pressure through the outlet of the regulator.

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  • Basic comprehension of high-pressure systems
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Suresh Gadekar
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Is flow rate at inlet of pressure regulator ( not relief valve) equal to flow rate at outlet ?
 
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Suresh Gadekar said:
Is flow rate at inlet of pressure regulator ( not relief valve) equal to flow rate at outlet ?

Mass is conserved, so the mass flow rate is the same at the inlet and outlet -- asssuming that there are no leaks on the high pressure side of things. Everything coming out of the high pressure tank shuld be going out at lower pressure on the outlet.
 

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