ProVane Motor Speed Vane Pumps (photo) rely on a Hydrodynamic Journal Bearing feature to eliminate shaft-to-bearing contact by hydroplaning above the bearing surface on a cushion of liquid. In this hydrodynamic condition there is no metal-to-metal contact or wear, and bearing life can be indefinite, says the manufacturer. The pumps offer operating speeds up to 3,600 rpm with capacities from 6 to 100 gal/min (379 L/min) in sizes ranging from ¾ to 2 in. Designed for continuous-duty operations, this pump offers the self-priming, low shear, superior line stripping and fluid transfer efficiency of traditional vane pumps with the added benefits of higher operating speeds, longer bearing life, and one mechanical seal. ProVane pump does not require a gear reducer, so it offers upfront equipment, installation and energy cost savings, in a smaller footprint. — Blackmer, an operating company within Dover Corp.’s PSG, Grand Rapids, Mich.
Vane pump offers extended bearing life, lower energy costs
| By Chemical Engineering