High flow with Low head pump
High flow with Low head pump
(OP)
I have to pump a large volume of water out of a pond quickly during a storm event to prevent flooding. The pond cannot be enlarged so I am going to install a pump with a high flow rate with low head conditions. The target discharge rate is 1500 gpm with a static head + friction head of less than 15 feet. Does anyone know of a pump that will meet these requirements?





RE: High flow with Low head pump
http://us.grundfos.com/products/find-product/kpl-a...
http://www.berkeleypumps.com/resources/images/502....
https://www.sulzer.com/en/Products-and-Services/Pu...
http://turbolab.tamu.edu/proc/pumpproc/P5/P565-71....
RE: High flow with Low head pump
RE: High flow with Low head pump
No, you can't get them anymore, but they sure are cool.
Mike Halloran
Pembroke Pines, FL, USA
RE: High flow with Low head pump
Axial flows typically between 5-40 ft of head, mixed flow between 30- 80' or thereabouts. As said above, they are typically vertical pumps; axials (sometimes called propeller pumps)are named such because axial forces are dominant in moving the fluid axially along the shaft. Their energy is used to create flow, not head. Specific speeds usually range from....maybe 10K-25K....
1500 gpm is really not a huge volume; some of these monsters can easily move 100,000 gpm. Go check out Goulds, Floway, Flowserve, Patterson, Sulzer (they now own the old Johnston pump line). A cheaper version was made by a company called Low-Lift. They were totally fabbed pumps, no castings, and had huge installation base. Don't know if they are still around.
RE: High flow with Low head pump
More than adequate for your probably infrequent use.
It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts. (Sherlock Holmes - A Scandal in Bohemia.)
RE: High flow with Low head pump
So just use an open pipe with no valves on the outlet. typical axial pump curve below
Remember - More details = better answers
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RE: High flow with Low head pump
RE: High flow with Low head pump
You either need to screen this out or use a trash pump.
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: High flow with Low head pump
1500 gpm @ 10ft head
RE: High flow with Low head pump
What you're doing isn't unusual so they will have types of pumps which are suitable for dirty water with some level of dirt / entrainment, but 50mm is a bit big.
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: High flow with Low head pump
It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts. (Sherlock Holmes - A Scandal in Bohemia.)
RE: High flow with Low head pump
RE: High flow with Low head pump
RE: High flow with Low head pump
RE: High flow with Low head pump
georgeverghese - The plan is to place these pumps in a inlet sump. However, there is always a chance of some type of solid making its way to the pump and cause clogging.
RE: High flow with Low head pump
Provide mimimum 4 ft submergence.
RE: High flow with Low head pump
RE: High flow with Low head pump