khu
Civil/Environmental
- Aug 8, 2019
- 25
I'm trying to determine the pressure of a 10" main from hydrant test results. For some reason, I've always assumed those pressures were actual system pressures, but the water board is telling me the pressure in this line is actually ~170psi. Is there a way to convert these pressures to main pressure? Is it the same??
Test results:
Static Pressure = 70 psi
Residual Pressure = 50 psi
Outlet Size = 5 inches
Pitot Pressure = 18 psi
Flow = 2,850 gpm
Calculated Flow at 20 psi residual = 4,600 gpm
Test results:
Static Pressure = 70 psi
Residual Pressure = 50 psi
Outlet Size = 5 inches
Pitot Pressure = 18 psi
Flow = 2,850 gpm
Calculated Flow at 20 psi residual = 4,600 gpm