Maintenance time cut

The benefits of NOV Mono's EZstrip technology have been highlighted by a new order from a Danish wastewater treatment plant. When sourcing pumps for a new sludge dewatering process, maintenance engineers at the Odense WWTP in Southern Denmark opted for 8 Mono EZstrip cake pumps and 16 Compact C Range progressing cavity (pc) pumps.

The company says the decision was based on the reduction in maintenance the pumps offer, together with speed of delivery from Mono.

These benefits led the plant's engineers to specify Mono's EZstrip and Compact C Range pumps for use on new polymer dosing equipment.

"When we were invited to tender for pumps on the sludge dewatering process, we took an EZstrip demonstration pump to the plant," explains product manager Michael Roug, from AxFlow A/S, Mono's distributor in Denmark who supplied the pumps. "We explained how the pump could be disassembled, deragged and maintained insitu, all in a fraction of the time that process takes with a normal pc pump. Coupled with the fact that Mono was competitive in terms of cost and speed of delivery, this made it an easy decision for the maintenance engineers." The pumps were ordered in a variety of sizes for use on different parts of the process.

They can reduce the time needed to replace a rotor, stator, coupling rod and drive train by up to 95%, cutting maintenance down to 30min.