Deer Island found with competitor’s pumps that every time they needed to replace the stator, they also needed to replace the rotor. Since the start-up of Flowrox PC pumps in May 2014, the plant has only replaced two rotors. The operators appreciate how quietly the Flowrox PC pumps run. Flowrox PC pumps operate at a lower RPM (140 RPM vs. 300 RPM) than competitive pump while producing a significantly greater average flow rate (248 GPM average vs 172 GPM average). The plant asked Flowrox to extend stator lifetime and it was extended from 5 – 8 weeks to 6 – 8 months. Annual maintenance cost savings are approaching $100K over competing progressive cavity pumps.
Flowrox stators were lasting 5-8 weeks which was an improvement from the competition but not by much. The plant worked with Flowrox engineers to alter the stator durometer which resulted in a stator lifetime of 6-8 months at Deer Island.