Pump Curve

You need to design a pump. From testing the pump, you will get a curve.

Now, do you want to design a pump?

If so, go to the net and search for "pump design guidelines".

You will find the steps required there.

We don't normally tutor here.

HOW TO design a pump system

Dear Mr.lyn

I have opened the link given by you.

HOW TO design a pump system

Thank you for giving a link which gives good amount of details.

I have noted there that One Gallon = 8 Pounds. But in our college days we have been taught that One Gallon = 10 Pounds. Also we have been taught Imperial Gallon (but I do not remember how many Pounds) and pl. clarify this. Perhaps it will be like Long Ton and Short Ton.

DHAYANANDHAN.S

One U.S. gallon = 3.785 liters. If water (at standard temperature) it weighs 8.33 pounds.
One imperial gallon = 4.54609 liters ≈ 10 pounds of water.

This does not sound like a well formed question from your instructor. For instance, is (4.2, 30) a given point on the curve, or are (0, 30) and (4.2, 0) the endpoints of the curve?

In either case, the curve could be approximately a quarter ellipse containing the point(s).

Another recent question revolves around 4.2 ML/d; by chance are both questioners from the same design team?

Are you trying to create a Pump System Resistance Curve or Pump Performance Curve.

If system resistance curve is required use the Hazen - William formula to do that, while if you need performance curve then you will have to contact the pump supplier since, performance curves are done by them based on pump testing.

Good luck...

I'm trying to create Pump Performance curve. Oh, so we cannot create the curve ourselves?

The curve is a result of testing of the pump. If you test the pump you can obtain the curve.

You can not design the curve. But you can design the pump to a certain degree to have a desired behaviour on the curve.

Noted...really understood. Sorry for any incovenience