Rotary Vane Pumps
Rotary vane pumps are positive-displacement pumps designed for smooth, consistent transfer of low to medium viscosity liquids. They’re often chosen when you need good suction performance, stable flow, and gentle handling for a wide range of industrial fluids.
What are rotary vane pumps and how do they work?
A rotary vane pump uses a rotating slotted rotor fitted with vanes inside a cam-shaped casing. As the rotor turns, the vanes slide out to maintain contact with the casing, creating expanding chambers on the inlet side (suction) and shrinking chambers on the outlet side (discharge). This trapped-volume action moves liquid from inlet to outlet with consistent flow.
Rotary Vane Pump Typical applications
• Fuel and oil transfer: lubricating oils, diesel, fuel oils (duty dependent)
• Solvents and hydrocarbons: transfer, loading/unloading, circulation
• General industrial liquids: thin to moderately viscous fluids requiring steady flow
• Tank-to-tank transfer / loading: where suction lift and consistent delivery are useful
(Exact suitability depends on fluid lubricity, viscosity, temperature, and whether solids are present.)
Why buy rotary vane pumps from Triark?
Triark can support pump selection, spares supply and aftercare—helping you match the right pump configuration to your flow, pressure, viscosity and materials compatibility, then supporting uptime with service parts and technical help.
Rotary vane pump spares and service
Common wear/service items include:
• Vanes (primary wear component)
• Seals / O-rings / gaskets
• Bearings (model dependent)
• Shaft seal or mag-drive components (depending on configuration)
• Strainers/filters (recommended where contamination risk exists)
Repair and maintenance
Good practice includes:
• Monitor performance changes (flow/pressure drop can indicate vane wear)
• Keep fluids clean—use filtration/strainers to reduce scoring and wear
• Avoid prolonged dry running (especially on designs relying on pumped fluid for lubrication)
• Verify pressure protection where needed (PD pumps should not deadhead without relief)
