how to select the right submersible pump?
how to select the right submersible pump?
(OP)
good day to everyone!
i've just received the Pumping Test Report of our newly drilled well and it's my first time to see such report and i'm just new in the field of water distribution. kindly help me select a submersible pump based from the report.
Their recommendations are:
Q (discharge) = 330 GPM
TDH = 196.8 feet
HP = 25 Hp
Voltage = 230
Phase = 3 phase
Pump setting = 48 meters
The pump that i should choose will deliver water to one area which is about 7 kilometers away from the well and to a ground reservoir which is about 5 kilometers away. the reservoir's location is 30 meters higher than the location of the pump.
Here are some of my questions...
1) is the TDH recommended by the report the right basis for the pump that i should choose?
2) if not, what else should i consider for me to have the right submersible pump? how should i compute for the
correct TDH which will serve as my basis for the pump?
Thanks...
i've just received the Pumping Test Report of our newly drilled well and it's my first time to see such report and i'm just new in the field of water distribution. kindly help me select a submersible pump based from the report.
Their recommendations are:
Q (discharge) = 330 GPM
TDH = 196.8 feet
HP = 25 Hp
Voltage = 230
Phase = 3 phase
Pump setting = 48 meters
The pump that i should choose will deliver water to one area which is about 7 kilometers away from the well and to a ground reservoir which is about 5 kilometers away. the reservoir's location is 30 meters higher than the location of the pump.
Here are some of my questions...
1) is the TDH recommended by the report the right basis for the pump that i should choose?
2) if not, what else should i consider for me to have the right submersible pump? how should i compute for the
correct TDH which will serve as my basis for the pump?
Thanks...





RE: how to select the right submersible pump?
The head seems to be inadequate even for 6"sch40 discharge pipe incase of 7km user point.
Do a full analysis with various pipe sizes and post it here.
PS: Use Darcy-weisbach equation for calculating pressure drops and search past threads for other details.
RE: how to select the right submersible pump?
http://virtualpipeline.spaces.msn.com
RE: how to select the right submersible pump?
RE: how to select the right submersible pump?
the depth of the well is 100 meters and the pump setting which is 48 meters I believe means the pump will be 48 meters below the ground.
To BigInch,
the water will be distributed to consumers and at the same time some will be stored in the reservoir.
Then i have to compute for all the pipes' head loses, add them to the pump setting and the reservoir's elevation to get the TDH for the needed pump, am i right sirs?
Pardon me for my ignorance because these is really different from my previous job as a workshop manager. Thanks for all the help
RE: how to select the right submersible pump?
You must account for all head losses until you arrive at the end use point, or the next pump in the system. If you had 1/2 km of 6" pipe, water would only get there with approximately zero pressure, so if you needed to deliver it with pressure 1/2 km away, the above pump would not be able to do so.
http://virtualpipeline.spaces.msn.com