Orifice plate thickness & design dp
Orifice plate thickness & design dp
(OP)
What is the downside to taking a high pressure drop for a liquid flow meter orifice, so long as I ensure there would be no flashing, accept a small beta ratio, to avoid using a throttling valve? I imagine the orifice edge blunting is more rapid.
If I were to take 50 psi drop would it be best to switch to a square edge orifice? This is to monitor flow to a chiller +/- 3 %
Lastly what yield stress value should bs used in the miller equation. I would have thought proof stress values would be correct for annealed material, or the stress values from ASME, however examples I see are using 450 to 540 mpa rather than 220 mpa (ambient)
If I were to take 50 psi drop would it be best to switch to a square edge orifice? This is to monitor flow to a chiller +/- 3 %
Lastly what yield stress value should bs used in the miller equation. I would have thought proof stress values would be correct for annealed material, or the stress values from ASME, however examples I see are using 450 to 540 mpa rather than 220 mpa (ambient)





RE: Orifice plate thickness & design dp
Square edge sounds questionable.
Throttling and measurement usually arn't compatible applications.
Failure is probably by excessive deformation, rather than exceeding yield stress.
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RE: Orifice plate thickness & design dp