# Steam Flow Through Orifices

## Steam flow through orifices - steam pressure ranging* 2 - 300 psi*

Sponsored Links

Steam flow rates can be measured by using orifice plates. The diagram below indicates steam flow rate* (lb _{s}/hr)* through orifices ranging diameter

*1/32" to 1/2"*and

*2 - 300 psig*steam line pressure.

Downstream pressure equals atmospheric pressure.

*1 lb/hr = 1.26x10*^{-4}kg/s*1 psi (lb/in*^{2}) = 6,894.8 Pa (N/m^{2}) = 6.895x10^{-3}N/mm^{2}= 6.895x10^{-2}bar- convert inch to mm

### Example - Steam Flow through a 1/4" orifice discharging to the atmosphere - steam pressure 50 psi

By drawing the lines as in the chart above - the discharged steam flow can be estimated to

aprox. 98 lb/h

Sponsored Links