Maximum flow rate through pipes

[curiousguy]

i need to find the maximum flow rate of steam at 200 psi through a:-
1) half inch pipe
2) 1 inch pipe
3) 1.5 inch pipe

The maximum velocity will suffice, since the flowrate can be obtained from the velocity.
i know there are books which give these values, but i cannot seem to find any.

 

[Latexman]

curiousguy,

What maximum velocity are you speaking of? A recommended maximum velocity for steam to prevent erosion from condensate? Prevent noise? Optimum pipeline size and life? Sonic velocity?

Sonic velocity of 100-200 psi steam is 1600-1700 ft/sec.

Good luck,
Latexman

 

[JimCasey]

According to the Leslie Controls "Engineering Data Reference Tables"
Saturated Steam 1-15 psig Heating Mains 4000-6000FPM
Saturated Steam 50-up psig Misc 6000-8000FPM
Saturated Steam 200-up psig Turb&Boiler leads 10K-15K FPM

1/2" pipe: 6000 Feet/Min 200 PSIG steam: 270#/H
1" pipe: 6000 Feet/Min 200 PSIG steam: 840#/H
1 1/2" pipe: 6000 Feet/Min 200 PSIG steam: 2060#/H