SailNet Community - View Single Post - overpropped vs underpropped
View Single Post
post #35 of Old 12-18-2012
Maine Sail
Senior Member
Maine Sail's Avatar
Join Date: Jan 2003
Location: Maine Coast
Posts: 6,402
Thanks: 22
Thanked 303 Times in 235 Posts
Rep Power: 18
Re: overpropped vs underpropped

Originally Posted by Oaksail View Post
Hi TQA, I can't scan my text books but this might work

Try this link Downloads & CDs
You can get to it through ITT Bell & Gossett website, click on "Online Calculators" scroll down and click on 'Flow / Head - Variable Speed Pumping Wizard" and try it out.

Start at 5 gpm at 10 ft of head and then look at what happens to flow at different speeds. Directly proportional.

Try 5000 gpm at 10, 100, or a 1000 ft of head.
Directly proportional.

I test small pumps and i test BIG pumps. I test them at different speeds.

This is very easy to see with centrifugal bilge pumps. Drop the voltage and the output is also cut. It can be pretty dramatic...

-Maine Sail / CS-36T

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Images In Posts Property of Compass Marine Inc.

Maine Sail is offline  
Quote Share with Facebook
For the best viewing experience please update your browser to Google Chrome