looking for a pump like this..

[Tiggy_dorset]

Strange request maybe.
Im looking for something like this, but it needs to be about 3 times the size. the water needs to go straight through in a straight line as it does in the pic. Any Ideas?


Thanks.

 

[Spark plug]

Dose it need to be powered by a drill or can it have it's own motor?

Would a central heating pump do the job?

 

[MattF]

Curiosity kicking in. Why such specific requirements on the flow path? Does it need to have a blank shaft for powering vias some external means, btw, or was the drill powered one the only one which was a decent example of the general design required?

 

[penfold]

What are you pumping, where's it coming from and where does it need to go? What's the budget?

 

[the snooper]

a tenner ebay


edit
hmm forgot about the size no good after all

 

[Tiggy_dorset]

Dose it need to be powered by a drill or can it have it's own motor?

Would a central heating pump do the job?

I want a pumped water flow to turn the impeller and shaft in this case, as opposed to it being the other way round.
hmm I actually have a central heating pump lurking under my workshop bench. Only problem is that I would have to modify it to turn a shaft. I will take it apart and consider options though. Cheers

Curiosity kicking in. Why such specific requirements on the flow path? Does it need to have a blank shaft for powering vias some external means, btw, or was the drill powered one the only one which was a decent example of the general design required?

lol, not saying much, but that its for a project I am planning. If it succeeds i will share it with the forum
I would like the flow without any restrictions such as bends and such.

 

[Tiggy_dorset]

I suppose in simple terms, Im looking for a straight line flow, housed water impeller mounted on a shaft.

Budget? I dont know, it depends whats available

 

[Spark plug]

I want a pumped water flow to turn the impeller and shaft in this case, as opposed to it being the other way round.
hmm I actually have a central heating pump lurking under my workshop bench. Only problem is that I would have to modify it to turn a shaft. I will take it apart and consider options though. Cheers

A central heating pump probabley won't work as they are a centrafugal pump.

What pressure will the incoming liquid have?

 

[Tiggy_dorset]

A central heating pump probabley won't work as they are a centrafugal pump.

What pressure will the incoming liquid have?

Not sure of pressure just yet, but the pump is capable of 57 Lpm

 

[penfold]

Is there any restriction on the exhaust/drain? What you want is basically a hydro turbine, so your low/ no budget option is a centrifugal pump, although there are low cost Kaplan and Pelton turbines available in Pico- and Micro-hydro sizes. What input volume/pressure do you have?

As an aside, hydraulic power transmission is a lot older than electric power and used to drive most things in industry, cranes, lathes etc.

 

[the snooper]

not in line but what about a washing machine pump you could adapt it

 

[Luke]

For what its worth, the water doesn't go straight through, it goes the long way round.

 

[Tiggy_dorset]

For what its worth, the water doesn't go straight through, it goes the long way round.

Good observation there, I missed that.

I have been trawling the net for a few hours now. It does look like a modification of a pump is required. Perhaps the washing machine pump is worth looking into. I might see if my local tip will let me strip one out of one of their dumped machines.

Thanks for all your help so far guys.

 

[MattF]

I'd forget the washing machine pump. They're tat quality, and would need modification to get a simple shaft drive from it.

 

[the snooper]

you need a hydro drive or a water motor / engine they exist on the web

 

[MonsterLandrover]

I have done a similar thing using an old IHI Turbo. They make awesome self priming water pumps too!

 

[Angusdog]

Washing machine turbine on Youtube. Common shed project in NZ. Might help.

 

[octo0072000]

you need a hydro drive or a water motor / engine they exist on the web

pelton wheel maybe what he's looking for

try this lot

http://www.youtube.com/results?sear...76.1691.0j10j2.12.0...0.0...1ac.1.MwWP2DvubCE

 

[Big Pete]

a normal centrifugal pump will work just fine as a turbine. They are used in microhydro projects regularly.

 

[bill_gj]

Have a look at JABSCO pumps:

http://www.jabscoshop.com/marine/pumps/