horizonal vs verticle pumping

[iboomalot]

since horizonal isn't fighting against gravity how much further can a pump push vs vertical???


if a pump has 20ft of head what about horizonally????

[Naja002]

Here play with this for a while:


Head Loss Calculator (http://reefcentral.com/calc/hlc2.php)


Apologies, but I've got to head to bed just to be back up at 2:30 in the AM.....:yepp:

[Serpentarius]

when the loop is closed, the gravity issue is not applied

but if you're to test the pressure of the pump, by pumping vertical, there's no open loop, therefore the gravity issue is applied

[iboomalot]

thanks NAJA horizonal doesn't effect it much

[Snyxxx]

when the loop is closed, the gravity issue is not applied

Absolutely correct. With fluids, there is a gravity component and a friction component. In a closed loop, the fluid you push up has to come back down cancelling the gravity component.

The friction component is based on the fluid velocity and the friction to the tubing/piping walls. The frictional pressure drop increases as a square of the velocity.