high pressure pump and circulation pump

[oceanview85]

what is the difference between them

[caferacermike]

High pressure would mean that the impeller is meant to really push water as compared to a typical vaned impelled. Pressure pumps are generally external. Expect a pressure pump to be able to lift a large volume of water up a large head. They can handle build ups of back pressure due to a high head or restricted orifice. Hey who made it to my plumbing demo? LOL, remember how often I said "orifice"? A vaned impeller will just spin if back pressure is applied. The water is basically cavitating within the pump body, meaning it's swirling around the spinning vanes and not be pushed out. If you place your hand over a pressure pump it will eventually push your hand off to vent the excess pressure. A circulation pump is good for a regular duty sump, a pressure pump would be great for a closed loop or for pushing water outside to a remote chiller and then back up to the tank.

[tomanero]

Yeah.
What Mike said.
LOL

[caferacermike]

You referring to my mention of orifice?


BTW Tomanero, way off topic here but I sure could handle putting some more of that cheesecake in my orifice.

[captexas]

Circulation pumps are generally used to return water from a sump or for closed loops where there is less back pressure/head loss. High pressure pumps are good for situations where there is a lot of head loss due to pumping far distances/heights or for use with beckett skimmers and other filters where there is some back pressure.

[oceanview85]

thanks for all the help guys would a hight pressure pume work with a wave maker

[captexas]

It would work on whatever you connect it to, just a matter of the gph and head loss. What kind of wave maker? If you are shopping for pumps, a high pressure pump is usually going to cost you more $$$ than a "circulation" pump.