Why Choose a LobePro Positive Displacement Rotary Lobe Pump Instead of a Progressive Cavity Pump?
- Ability to run dry for a period of time. Progressive cavity pump stators will be destroyed if run dry, even for a brief period.
- Sharply lower maintenance and repair cost.
- Require approximately 1/3 their physical space. In addition, progressive cavity pumps need additional space for removing the rotor and stator.
- LobePro rotary pump lobes, seals and wearplates can be replaced in place without removing piping. Remove 4 bolts and one person can have access to all wear parts. Larger progressive cavity pumps often take two, sometimes three men to repair.
- Additionally, progressive cavity pumps are famous for “ragging” caused by their eccentric motion. The inherent design difference in a lobe pump allows rags and hair to pass through the pump.
- Premature wear of progressive cavity pumps often caused by not having enough stages. Moyno’s Chief Engineer recommends “10-20 psi per stage on abrasive applications when long life is desired”. Often this is not done because of the high initial cost.