Pump for Slurry Containing 40-50% Solids

I've used these Tarby Progressive Cavity pumps in the past with great success.

http://www.tarby.com/

Try These Links.

www.mono-pumps.com

www.jabsco.com

www.moyno.com

all make pc pumps you will need to give details of the solids involved to ensure the correct materials for the pump are offered. Remember there are no cheap options when pumping aggresive/abrasive slurries

The most commonly used pumps ( generally for dredges) are the Warman pumps (ex United Kingdom). I do not have their webb site but it should not be hard to find.

Pneumatic diaphragm pump.

Dear Sir

We manufactures peristaltic pumps and that can be used for your application,contact sales@ravelhiteks.com (9940103370)

Hi,

Pump types to consider:-

Lobe Pumps

Circumferential Piston Pumps

Progressive cavity Pumps

Peristaltic Pumps

Air Operated Double Diaphragm Pumps

Centrifugal Slurry Pump

We will need to know the fluid, flows & pressures to advise further. You will also need to consider pipe velocities to prevent the solids from settling out of suspension.

www.pumps-ltd.com

Although a little more expexsive than most pumps. the scew type pumps are probably the best, e,g. Mono pumps are ideal for pumping slurries.

Avian:

When I deal with pumping of any material, besides the % solids, I like to know four more facts before I choose a pump:

vertical pumping distance,
horizontal pumping distance,
viscosity,
and desired pumping rate (flow, gpm)....

It can be difficult selecting a pump from any supplier or pointing you in the right direction without understanding these 4 items.

Thank you very much, people, I found out a lot of new informations since I've asked the question. The thing is that I have pumps that I have, and it's not very likely that we will change them in near future. Only if I prove that we will save a LOT of money FAST by replacing them. They are centrifugal non-clogging pump with open multi-vane impeller. They clogg a lot, and we are spending great amounts of water for cooling mechanical seal (or maybe sealing, cause when I decrease water inlet, I get beads in water outlet). Should we replace mechanical seal? How do I calculate the amount of water needed for cooling mechanical seal? Can I read it from something?

Krom: I hope that your signature about stupid question is not here just for me. I'm just a baby in big engineers world. And after all, if you find a question to be stupid and still bother to answering it, aren't you just another egoist.

Horizontal pumping distance is approx. 1 m

Vertical distance is approx. 8 m

Desired rate is 3,5 - 4 m3/h minimum

Viscosity I don't know. It's a mixture of polystyrene beads and water. Maybe density? I could measure it with areometer?

Thank you once again.

Hi,

Based on the information supplied, I think your best bet would be a Rotary Lobe Pump with rubber coated rotors. This will do the same job as a progressing cavity pump but it will be smaller and easier to maintain.

Have a look at www.boerger.de

Or type in "Rotary Lobe Pump" into your search engine. There is a few types out there.

Regards

That sounds about right "They are centrifugal non-clogging pump with open multi-vane impeller. They clog a lot,"

This reminds me of self priming centrifugal pumps that don't self prime. Still that's another story.

I realize that you said cost is going to be a problem, if at all possible, a screw (Mono) pump would suit your needs, with no problems.

"we are spending great amounts of water for cooling mechanical seal (or maybe sealing, cause when I decrease water inlet, I get beads in water outlet)." Could be your mechanical seal has failed. Depending on complexity of clearing the clogged impeller,or replacing mechanical seals, conventional sealing may be of benefit,with the use of a lantern ring to assist in cooling of the gland. Probably worth a try and much less down time in repacking than replacing mechanical seals.

The best pump you could use, with clog free properties is the Hidrostal pump

This sounds like another misapplication of a pump and misrepresentation of what the pump can do. The pumps you have cannot support what you are trying to accomplish and the non-clogging pump that is always clogging should not happen.

Check out www.daepump.com

or email info@daepumps.com

DAE Pumps will need some more information and then be able to provide a custom pump curve that will help identify exactly what slurry pump will work for your projects.