Vane pumps are available in a number of vane configurations including sliding vane (left), flexible vane, swinging vane, rolling vane, and external vane. Vane pumps are noted for their dry priming, ease of maintenance, and good suction characteristics over the life of the pump. Moreover, vanes can usually handle fluid temperatures from -32C / -25F to 260C / 500F and differential pressures to 15 bar / 200 psi (higher for hydraulic vane pumps).
Each type of Vane Pump offers unique advantages. For example, external vane pumps can handle large solids. Flexible vane pumps, on the other hand, can only handle small solids but create good vacuum. Sliding vane pumps can run dry for short periods of time and handle small amounts of vapor.
l Handles thin liquids at relatively higher pressures
l Compensates for wear through vane extension
l Sometimes preferred for solvents, LPG
l Can run dry for short periods
l Can have one seal or stuffing box
l Develops good vacuum