Technology
Oil-lubricated rotary vane vacuum pumps
The classic technology for rough and medium vacuum. 258 current models from 7 manufacturers ā comparable by pumping speed, ultimate pressure and rated motor power.
Compare 258 modelsHow it works
- 258models
- 28series
- 7manufacturers
- 1 Ć 10ā»Ā³ mbarlowest ultimate pressure
Touch the points: the parts explain themselves.
Manufacturers and series
7 manufacturers, 28 series
Each series leads to its page with all models. āShow only ā¦ā sets the filter of the product overview.
Atlas Copco
26 models Ā· 0.75ā700 mĀ³/h
Becker
28 models Ā· 4ā624 mĀ³/h
Busch
62 models Ā· 3ā1,800 mĀ³/h
Edwards
34 models Ā· 0.75ā755 mĀ³/h
- E2M9 Ā· two-stage
- RV8 Ā· two-stage
- E1M1 Ā· single-stage
- nES8 Ā· single-stage
- nES Ex5 Ā· single-stage
- E2S3 Ā· two-stage
Elmo Rietschle
26 models Ā· 10ā1,280 mĀ³/h
Leybold
48 models Ā· 2.7ā755 mĀ³/h
Pfeiffer Vacuum
34 models Ā· 1.25ā1,600 mĀ³/h
- DuoVane12 Ā· two-stage
- HenaLine19 Ā· single-stage
- SmartVane2 Ā· single-stage
- UnoLine Plus1 Ā· single-stage
Product overview
Compare all 258 models
On the left you can filter by manufacturer, series, cooling, ultimate pressure, pumping speed and rated motor power ā for 50 or 60 Hz.
Atlas Copco GVD series 13 models
Atlas Copco GVS series 9 models
Atlas Copco GVS VSD+ series 4 models
GVS 80 VSD+Pumping speed 78 mĀ³/h 50 Hz78 mĀ³/h 60 HzUltimate pressure 0.5 mbarRated motor power 2.2 kW 50 Hz2.2 kW 60 HzVariants 1
GVS 120 VSD+Pumping speed 117 mĀ³/h 50 Hz117 mĀ³/h 60 HzUltimate pressure 0.5 mbarRated motor power 3.7 kW 50 Hz3.7 kW 60 HzVariants 1Becker O series 6 models
Becker U4 series 6 models
Becker U O2-PACK series 5 models
Becker U series 8 models
Becker VARIAIR U series 3 models
Busch HUCKEPACK series 4 models
Busch R5 series 58 models
Edwards E1M series 1 model
Edwards E2M series 9 models
Edwards E2S series 3 models
Edwards nES Ex series 5 models
Edwards nES series 8 models
Edwards RV series 8 models
Elmo Rietschle V-VCA/VCE series 2 models
Elmo Rietschle V-VCB series 2 models
Elmo Rietschle V-VCS series 13 models
Elmo Rietschle V-VCX series 7 models
Elmo Rietschle V-VGD series 2 models
Leybold NEO D series 5 models
Leybold SOGEVAC series 23 models
Leybold TRIVAC series 20 models
Pfeiffer Vacuum DuoVane series 12 models
Pfeiffer Vacuum HenaLine series 19 models
Pfeiffer Vacuum SmartVane series 2 models
Pfeiffer Vacuum UnoLine Plus series 1 model
No model matches these filters.
Atlas Copco GVD series 13 models
Atlas Copco GVS series 9 models
Atlas Copco GVS VSD+ series 4 models
Becker O series 6 models
Becker U4 series 6 models
Becker U O2-PACK series 5 models
Becker U series 8 models
Becker VARIAIR U series 3 models
Busch HUCKEPACK series 4 models
Busch R5 series 58 models
Edwards E1M series 1 model
Edwards E2M series 9 models
Edwards E2S series 3 models
Edwards nES Ex series 5 models
Edwards nES series 8 models
Edwards RV series 8 models
Elmo Rietschle V-VCA/VCE series 2 models
Elmo Rietschle V-VCB series 2 models
Elmo Rietschle V-VCS series 13 models
Elmo Rietschle V-VCX series 7 models
Elmo Rietschle V-VGD series 2 models
Leybold NEO D series 5 models
Leybold SOGEVAC series 23 models
Leybold TRIVAC series 20 models
Pfeiffer Vacuum DuoVane series 12 models
Pfeiffer Vacuum HenaLine series 19 models
Pfeiffer Vacuum SmartVane series 2 models
Pfeiffer Vacuum UnoLine Plus series 1 model
Models that a manufacturer no longer carries in its current range are listed in its āOutdated modelsā section ā for example under outdated Leybold models.
Operating principle
How an oil-lubricated rotary vane vacuum pump works
A rotor turns eccentrically in the bore of the housing. Vanes slide in its slots and are pressed against the wall by centrifugal force. This creates closed cells: as the rotor turns, they first grow and draw in gas, then shrink and compress it.
The drawing shows the basic principle. The designs of the individual manufacturers differ in detail.
- SuctionThe gas flows through the inlet port (A) and the inlet channel (B) into a cell (H) that grows as the rotor turns.
- CompressionAs soon as the cell is cut off from the inlet, it shrinks. The gas is compressed in the compression chamber (I).
- DischargeThe compressed gas leaves the pump through the discharge channel (J) and the outlet valves (K).
Designs
Single-stage or two-stage?
Two-stage rotary vane pumps compress the gas in two stages arranged one after the other and reach lower ultimate pressures.
Two-stage
from 1 Ć 10ā»Ā³ mbarUltimate pressure in our range
Single-stage
from 0.03 mbarUltimate pressure in our range
Ultimate pressure compared (mbar, logarithmic)
For comparison: the dry-running rotary vane vacuum pumps in our range reach 100 to 400 mbar.
What the oil does
Lubricating
The oil lubricates the vanes.
Sealing
It seals the gaps between rotor, vanes and housing.
Removing heat
It carries away the heat of compression.
Separating
Oil mist separators (exhaust filters) remove the oil from the exhaust air ā depending on the series, they are built in (for example SOGEVAC) or available as an accessory (for example TRIVAC).
Advantages
What speaks for this technology
- Vanes with a very long service life
- High water vapour tolerance
- Optimised oil-water separation
- Low noise level
- Long service life
- Easy maintenance
- Suitable for many industrial applications
- Low purchase cost compared with other technologies
Applications
Where they work
- Packagingpackaging machines, central vacuum
- Food processingfilling systems, bowl cutters
- Industryextraction systems, drying systems, industrial furnaces, clamping devices
- Woodworking industryextraction systems, clamping devices
- Environmental technologyextraction systems, drying
- Pneumatic conveying
Frequently asked questions
Questions about oil-lubricated rotary vane vacuum pumps
How does an oil-lubricated rotary vane vacuum pump work?
An eccentrically mounted rotor with movable vanes divides the pump chamber into cells that draw in, compress and expel the gas. The oil lubricates the vanes, seals the gaps and carries away the heat. The drawing in the section Operating principle shows every step.
What ultimate pressure do oil-lubricated rotary vane pumps reach?
That depends on the design: the models in our range state ultimate pressures from 1 Ć 10ā»Ā³ to 20 mbar. The lowest values are reached by two-stage series such as GVD, E2M, DuoVane, RV, TRIVAC, E2S and NEO D. In the product overview, the āUltimate pressureā filter narrows down the selection.
What is the difference between oil-lubricated and dry-running rotary vane pumps?
Dry-running rotary vane vacuum pumps work without oil in the pump chamber. Oil-lubricated pumps reach much lower ultimate pressures: in our range they lie between 1 Ć 10ā»Ā³ and 20 mbar, for the dry-running rotary vane vacuum pumps between 100 and 400 mbar.
Which manufacturers does Ehrler & Beck carry in this technology?
7 manufacturers: Atlas Copco, Becker, Busch, Edwards, Elmo Rietschle, Leybold and Pfeiffer Vacuum. Their series are listed in the section Manufacturers and series.
How do I find the right pump?
In the product overview, all models can be filtered by manufacturer, series, cooling, pumping speed, ultimate pressure and rated motor power. For sizing, it is best to tell us the gas to be pumped, the working pressure and the pumping speed you need ā we will be glad to advise you.
What do the figures for 50 Hz and 60 Hz mean?
The pumping speed and the rated motor power of a pump depend on the mains frequency. The overview therefore shows both values wherever the manufacturer states them, and the size filters can be switched between 50 Hz and 60 Hz.
Does Ehrler & Beck also supply oil, spare parts and service?
Yes. Ehrler & Beck offers oils and greases, original spare parts and accessories as well as maintenance and repair for vacuum pumps.
Which pump fits your process?
Tell us the gas to be pumped, the working pressure and the pumping speed you need ā we will advise you on selection, spare parts and service.
