SailNet Community - View Single Post - Bilge pump non return valve.
View Single Post
post #4 of Old 11-09-2012
Senior Member
Brewgyver's Avatar
Join Date: Dec 2011
Location: So Cal
Posts: 393
Thanks: 7
Thanked 13 Times in 13 Posts
Rep Power: 6
Re: Bilge pump non return valve.

It's not quite as simple as no check valve on centrifugal pumps. A great many centrifugal pumps MAY use a check valve (or foot valve, as they are called when installed directly into the pump outlet. Most sump pump and condensate pump installations use a check or foot valve.

It's just that the typical 12 volt bilge pump for small boats has very low head capacity. The tradeoff is between flow and head, as it is on all centrifugal pumps. Higher head = lower flow, and vice versa.

s/v My Sweet Girl!
Catalina 30 (Mark I)
Atomic 4
Brewgyver is offline  
Quote Share with Facebook
For the best viewing experience please update your browser to Google Chrome