Nemo pumps won't wear
15 Jan 2000
Netzsch Nemo-Pumps has a startling claim for the ceramic rotors used in its progressive cavity pumps: they won't wear out, no matter how aggressive the slurry pumped. So confident is the company that it has issued a two-year unconditional guarantee on the rotors.
In extensive field tests, even extremely aggressive slurries caused no detectable wear on the rotor, claims Netzsch Nemo md Roger Willis. `The tests were eventually halted when seven 250-micron wear chrome stainless steel rotors running the same slurries had worn out over the same period!' he says. `In the year since we launched the ceramic rotor, no customer has managed to wear one out.'
The tough rotors also reduce wear on the pump stator, and reduces the need for spares, maintenance and service costs, the company says.
