total discharge head = pressure gage reading?
total discharge head = pressure gage reading?
(OP)
Helo guys.
I would like to ask one simple question.
i have a network of water being pump through a single pipeline.
By calculation, the total discharge head of my pump is 6.6 bar.
At the same time, the pressure gage on the pump outlet on site is showing a value of 6.5 bar.
Does my total discharge head by calculation is referring to pressure gage reading?
Please check the attached picture for clarification.
thank you
I would like to ask one simple question.
i have a network of water being pump through a single pipeline.
By calculation, the total discharge head of my pump is 6.6 bar.
At the same time, the pressure gage on the pump outlet on site is showing a value of 6.5 bar.
Does my total discharge head by calculation is referring to pressure gage reading?
Please check the attached picture for clarification.
thank you





RE: total discharge head = pressure gage reading?
"Scientists dream about doing great things. Engineers do them." -James Michener
RE: total discharge head = pressure gage reading?
If so, TDH can also indicate total dynamic head which refers only to the the head rise across the pump, so in that case, to obtain total discharge head (gage reading) you would have to either add or subtract - whichever is the case - the suction pressure at the inlet of the pump.
Could this be what is squirreling up your numbers?
rmw
RE: total discharge head = pressure gage reading?
Suction_head +
Suction Velocity Head +
Pump_Differential_Head +
Discharge Velocity Head
From www.pumpfundamentals.com
It is common to ignore the velocity heads. They are usually not very high values. Your pressure gage won't read the velocity head components anyway.
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