Pumps - Rotary vane pump
Rotary vane pumps are displacement pumps designed for transferring gases and liquids. They are commonly used for vacuum generation in laboratory applications.
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Pumps - Rotary vane pump
Rotary vane pumps are displacement pumps designed for transferring gases and liquids. They are commonly used for vacuum generation in laboratory applications.
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Blanc-Labo SA
Milian SA
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Guide and selection support
Rotary vane pumps are primarily used in laboratories to generate vacuum for analytical instruments or process applications. They are suitable for tasks requiring constant transfer of gases or liquids and are often an integral part of vacuum systems.
Key selection criteria include pumping capacity, medium compatibility, lubricating oil requirements, and the required operating pressure range. The rotor design and mechanical sealing also influence suitability for specific applications.
LabFinder supports targeted searches for suitable rotary vane pumps, providing quick orientation for laboratory procurement.
Applications and Benefits
Rotary vane pumps, also known as vane cell pumps, are displacement pumps that transfer gases and liquids via a rotating motion. In the laboratory, they are mainly used for generating vacuum in analytical devices and process systems. The eccentrically rotating rotor vanes inside the stator ensure a continuous displacement volume between inlet and outlet.
Typical applications can be found in vacuum systems, chemical laboratories, as well as physical and analytical research, where a stable and uniform flow rate is required. Due to their high oil consumption, they are often referred to as oil pumps.
Selection Criteria
When selecting a suitable rotary vane pump, important factors are pumping capacity, the medium to be transported (gas or liquid), and the desired pressure level. The choice of appropriate size and speed affects both efficiency and lifespan.
Maintenance requirements and oil supply are also important, as some models require regular oil changes. For key laboratory applications, compatibility of the pump with the medium in terms of sealing and material resistance should be checked.
Variants and Principle of Operation
Rotary vane pumps consist of a hollow cylinder (stator) within which an eccentrically mounted rotor rotates. The rotor and stator form alternating chambers that, during rotation, take in and displace the medium.
Depending on design, one or more rotating vanes (blades) are guided laterally within the rotor, ensuring the seal between suction and discharge sides. The pumps can be self-priming and used in suction or discharge operations.
Calibration and Maintenance
Rotary vane pumps require regular oil changes and periodic inspection of rotor and vane conditions to ensure optimal performance and longevity. Devices for monitoring pressure and temperature are recommended.
Technical calibration is generally not necessary, since these are mechanically operating displacement pumps. Preventive maintenance therefore focuses on wear parts and seals.
Limitations of Use
Rotary vane pumps are not suitable for abrasive or highly corrosive media, as these can damage the rotor, vanes, or oil. Oil use and emissions also limit their operation in sensitive or contaminated environments.
For strict purity requirements or aggressive media, alternative types of pumps should be considered. Additionally, operation outside defined pressure ranges and flow rates is technically restricted.
Search Terms and Related Terms
Synonyms and keywords include vane cell pump, rotary blade pump, rotor cell pump, rotary cell pump, rotary vane principle vacuum pump, laboratory oil pump, and laboratory rotary vane pump.
Related technical terms are displacement pump, stator, rotor, pumping capacity, vacuum generation, and vacuum technology.
Also known as
laboratory oil pump
laboratory rotary vane pump
rotary blade pump
rotary cell pump
rotary vane principle vacuum pump
rotor cell pump
vane cell pump
vane cell vacuum pump
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Frequently asked questions
How does a rotary vane pump work?
A rotary vane pump operates with an eccentrically rotating rotor inside a hollow cylinder, to which moveable vanes are attached. These form alternating chambers that draw in and displace the medium to maintain a continuous flow.
Which media can be pumped with rotary vane pumps?
Rotary vane pumps are generally suitable for gases and liquids. Due to their design and oil lubrication, they are mainly used for clean, non-abrasive, and non-corrosive media.
What criteria should be considered when selecting a rotary vane pump?
Important selection criteria include pumping capacity, medium compatibility, operating pressure, oil requirement, size, and maintenance effort. Mechanical sealing and the required pressure range should also match the intended use.
How is a rotary vane pump maintained?
Maintenance includes regular oil changes, inspection of the rotor and vanes, and monitoring of operating parameters such as pressure and temperature. Calibration is generally not required.
What are the application limitations of rotary vane pumps?
Rotary vane pumps are not suitable for abrasive or aggressive media, as these may cause wear or corrosion. Oil usage and emissions also limit their use in sensitive laboratory environments.
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