Searching For A High Volume/Low Head Water Pump That Is NSF 61 Certified

Maybe some info here?

I'm not ungrateful for your help, but I said that I have done exhaustive research online, which obviously includes a google search of the most basic terms for what I'm looking for. I'm needing someone with first hand knowledge of such a pump because internet searches have proved unfruitful.

You probably need to private mail this member

Find and click on this;

on his profile page (linked above)

Thank you for the lead, I sent them a message.

In terms of flow/head requirements you are probably looking along the right lines with pond/aquaculture pumps (axial-flow or mixed-flow would be best), but it is almost certain you won't find one with NSF 61 certification.

You could use a standard centrif, with NSF 61 certification, from the likes of Grundfos or Lowara, but it would be very inefficient. You would have to throttle-back, even at end-of-curve, and current draw could be 12-15 amps or more.

You could approach a smaller company like this and ask them if they'll make a pump for your duty and get it NSF certified.

You could make a small axial-flow pump yourself (effectively a propellor in a tube), and get it NSF certified yourself.

Sorry I couldn't be more helpful but, as you say, this is a tall order.

Well thanks for the input, I know the NSF certification process is expensive so I'll probably have to go the route of getting something certified myself.

Thanks again, I appreciate your time.

Good luck. Just another thought. You wouldn't normally consider anything other than a centrif for this sort of duty, and you've got to have a good reason for using a PD pump on water, but maybe certification is a good reason. There are a few pump companies that make 'hygienic' flexible impeller pumps, mostly for food, beverage and pharmaceutical applications. I know they can do the flowrate, and use FDA approved materials, but I don't know if they are NSF 61 certified. The main ones are ITT Jabsco, APV and Johnson (SPX).