pump impeller selection

Not much to go on. You might try here:Power Plant Slurry Pumps

Lyn

Thanks for showing your interest in this problem.

Have you tried an ASTM A532 material?: (Don't know about the corrosion in your service though)

http://www.astm.org/Standards/A532.htm

Try using soft or medium hard rubber lined, semi closed impeller.

I don't know what may be commercially available in pumps with rubber-lined casings and rubber-coated impellers, but rubber or similar elastomers may work for resisting abrasion. (Think of a sandblaster hose, for example. The basic idea is that the abrasive particles bounce off a flexible surface, rather than carving into a rigid surface.) Web searching for slurry pumps or abrasion-resistant pumps may help. Also ask your usual pump supplier, who may be able to give good advice. An air-powered diaphragm pump might also be suitable.

Thanks for your intersst in this issue, I have one air powered pump I am planning to use it for slurry application.

Warman pumps. Lawrence pumps.

Cavitation - Wikipedia, the free encyclopedia

Try this information for solving the problem. It takes a bit of reading but could give some hints about what could be really happening. Good luck, Ky.

Thanks for interest , I need more guidence on selection of type of impeller & MOC .

You may have cavitation along with abrasion. Need more information. I am a pump sales engineer in Detroit Michigan. Supply pump model, horsepower, system requirements of gpm and TDH (PSI), impeller trim, pump setting, and amp draw when pump is new. You need to tell me the pressure right at the discharge when the pump is new.

Joe T

Dear,

We dont have cavitation problem only abrasion is the issue, pumps are suitable from the head & flow point of view only doubt is on MOC & type of impeller.

We are using Cast iron casing and cast iron impeller ( closed Type) , now i am intersted in knowing that will it be benefitial for me to go for Cast steel or SS casing & Cast steel impeller for this application. Also what type of impeller is suaitable for same.

CD4 hardened cast stainless steel is the hardest material we can cast into pump impellers and castings. The next step is coatings.

Joe T

Do you have a lot of back pressure ? Sounds like the lines your pumping into may be too small. If they are too small then expect the same problem with any new pump to same size.

Dear Sir,

Thanks for interest, as we are processing slurry , frequent jamming problems are also there thats why our pipeline sizes are on higher side. No undersize pipelines are used in plant.

I am interested in knowing MOC of Impeller & casing for highly abrasive slurry.

Thanks

Maybe this company,

http://www.alibaba.com/product-gs/236395690/Slurry_Pump_EMM_8E.html

try on this site:

http://www.lightmypump.com/

is a wonderful source of info on pumps.

S

corrosion protection & prevention