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Posted by T Hynick on October 20, 2003 at 12:47:58:
I have a 4" schedule 80 steam line at 210psi and ~410F. I am measuring the differential pressure accross an existing orifice plate (the I.D. of which I should know this afternoon.) I would like to calculate the steam flow (lb/hr) from the pressure and orifice plate I.D. Is there a general purpose equation that I can use?