high volume very low head pump
high volume very low head pump
(OP)
I'm looking for a 50 gpm 1 to 2 feet head water pump. I was hoping to find a screw type to power in a ditch and raise the water up to a new ditch that I could use with a small solar panel. Once i find the pump, the conversion to solar is not a problem.





RE: high volume very low head pump
Mike Halloran
Pembroke Pines, FL, USA
RE: high volume very low head pump
looking for a off the shelf, but I like it. Like a old hand well pump, with a motor running off a battery.
RE: high volume very low head pump
sump pump?
RE: high volume very 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 volume very low head pump
Valuable advice from a professor many years ago: First, design for graceful failure. Everything we build will eventually fail, so we must strive to avoid injuries or secondary damage when that failure occurs. Only then can practicality and economics be properly considered.
RE: high volume very low head pump
RE: high volume very 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 volume very low head pump
RE: high volume very 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 volume very low head pump
A fast moving PD water well pump came to mind also.
I guess I'll have to accept a low efficiency pump.
RE: high volume very low head pump
Do an Internet search for "Archimedes Screw Pump," and you will find a number of references for kits, etc.
The only industrial ones that I have seen are quite large, but I've never been serious in looking to apply one anywhere. Since you are wanting to pump from a ditch, I presume that you will be needing something that is very "trash tolerant." This is not an application where efficiency will reign supreme.
Solar?? Are you sure that a small solar PV array will be adequate? Is this for just intermittent use with a relatively large battery? My guess is that pump efficiency will be an issue for solar. If this is a remote site, what about using wind (something similar to the old windmills that were common on US farms 50+ years ago)?
Because of likely trash issues, you may want to consider a larger pump running intermittently just for its ability to handle larger trash items.
Valuable advice from a professor many years ago: First, design for graceful failure. Everything we build will eventually fail, so we must strive to avoid injuries or secondary damage when that failure occurs. Only then can practicality and economics be properly considered.
RE: high volume very 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 volume very low head pump
If you are still looking for the pump, try google bilge pump or the below link from SPX Johnson. I think is a perfect fit with 12/24V DC motor for solar panel.
http:
model L4000
RE: high volume very low head pump
Let your acquaintances be many, but your advisors one in a thousand' ... Book of Ecclesiasticus
RE: high volume very low head pump
By impulse pump, do you mean a "ram pump"? I.e.:
http://www
Typically needs several feet of head on the incoming flow stream to operate, but the above lists at least one that will work on an infall of only 50 cm. Our neighbor back home used one of these to supply three families with fresh water from a small stream. It has lasted some 50+ years.
RE: high volume very low head pump
Impulse power 7 please Mr Spock.
Let your acquaintances be many, but your advisors one in a thousand' ... Book of Ecclesiasticus
RE: high volume very low head pump
As you know Mr. Sulu was the USS enterprise helmsman
RE: high volume very low head pump
Let your acquaintances be many, but your advisors one in a thousand' ... Book of Ecclesiasticus
RE: high volume very low head pump
Mike Halloran
Pembroke Pines, FL, USA
RE: high volume very low head pump
RE: high volume very low head pump
Well, it is kinda like a ramjet, in using the incoming velocity head to create pressure. Only different. Surge pump would be a fine term to, if it didn't remind me of milking machines. Water hammer pump would be a good description, but would likely scare people.
Mike, I do agree that some kind of weir and flume would need to be provided for the irrigation scheme, and a bigger question is how large the pump would need to be to provide 50 gpm.
RE: high volume very low head pump
IMHO, still, something like a small scale model of a Wood Screw Pump would be a decent choice for this application. ... except that I'd put the screw in the low leg of the syphon, not in the crest, so you wouldn't need a vacuum prime to get started.
Mike Halloran
Pembroke Pines, FL, USA
RE: high volume very low head pump
Let your acquaintances be many, but your advisors one in a thousand' ... Book of Ecclesiasticus