Technology

Dry-running rotary vane vacuum pumps

Oil-free in the pump chamber, simple in design and low-maintenance – the technology for rough vacuum. 65 current models from 4 manufacturers – comparable by pumping speed, ultimate pressure and rated motor power.

Compare 65 modelsHow the technology works

  • 65models
  • 14series
  • 4manufacturers
  • 100 mbarlowest ultimate pressure
ABCDEFGHIJK

Touch the points: the parts explain themselves.

Manufacturers and series

4 manufacturers, 14 series

Each series leads to its page with all models. “Show only …” sets the filter of the product overview.

Product overview

Compare all 65 models

The filters on the left narrow down the selection by the key figures of the models – for 50 or 60 Hz.

Atlas Copco DVS series 10 models

DVS 5Pumping speed 5 m³/h 50 Hz6 m³/h 60 HzUltimate pressure 120 mbarRated motor power 0.12 kW 50 Hz0.15 kW 60 HzVariants 3
DVS 8Pumping speed 8 m³/h 50 Hz9 m³/h 60 HzUltimate pressure 150 mbarRated motor power 0.25 kW 50 Hz0.3 kW 60 HzVariants 3
DVS 16Pumping speed 16 m³/h 50 Hz19 m³/h 60 HzUltimate pressure 120 mbarRated motor power 0.75 kW 50 Hz0.9 kW 60 HzVariants 3
DVS 25Pumping speed 25 m³/h 50 Hz29 m³/h 60 HzUltimate pressure 120 mbarRated motor power 0.75 kW 50 Hz0.9 kW 60 HzVariants 3
DVS 40Pumping speed 40 m³/h 50 Hz48 m³/h 60 HzUltimate pressure 120 mbarRated motor power 1.3 kW 50 Hz1.5 kW 60 HzVariants 3
DVS 60Pumping speed 60 m³/h 50 Hz70 m³/h 60 HzUltimate pressure 150 mbarRated motor power 1.5 kW 50 Hz1.8 kW 60 HzVariants 3
DVS 80Pumping speed 80 m³/h 50 Hz90 m³/h 60 HzUltimate pressure 150 mbarRated motor power 2.2 kW 50 Hz3 kW 60 HzVariants 3
DVS 100Pumping speed 100 m³/h 50 Hz115 m³/h 60 HzUltimate pressure 150 mbarRated motor power 3.4 kW 50 Hz4 kW 60 HzVariants 3
DVS 140Pumping speed 130 m³/h 50 Hz150 m³/h 60 HzUltimate pressure 150 – 200 mbarRated motor power 3.4 kW 50 Hz4 kW 60 HzVariants 3
DVS 12Pumping speed 14 m³/h 60 HzUltimate pressure 120 mbarRated motor power 0.45 kW 60 HzVariants 1

Becker KVT series 4 models

KVT 3.60 vacuum pumpKVT 3.60Pumping speed 55 m³/h 50 Hz66 m³/h 60 HzUltimate pressure 100 mbarRated motor power 2.2 kW 50 Hz2.6 kW 60 HzVariants 6
KVT 3.80 vacuum pumpKVT 3.80Pumping speed 67 m³/h 50 Hz78.5 m³/h 60 HzUltimate pressure 100 mbarRated motor power 2.2 kW 50 Hz2.6 kW 60 HzVariants 6
KVT 3.100 vacuum pumpKVT 3.100Pumping speed 98 m³/h 50 Hz112 m³/h 60 HzUltimate pressure 100 mbarRated motor power 3 kW 50 Hz3.6 kW 60 HzVariants 8
KVT 3.140 vacuum pumpKVT 3.140Pumping speed 129 m³/h 50 Hz154 m³/h 60 HzUltimate pressure 100 mbarRated motor power 4 kW 50 Hz4.5 – 4.8 kW 60 HzVariants 7

Becker KVX series 4 models

KVT 3.60 vacuum pumpKVX 3.60Pumping speed 55 m³/h 50 Hz66 m³/h 60 HzUltimate pressure 100 mbarRated motor power 2.2 kW 50 Hz2.6 kW 60 HzVariants 6
KVT 3.80 vacuum pumpKVX 3.80Pumping speed 67 m³/h 50 Hz78.5 m³/h 60 HzUltimate pressure 100 mbarRated motor power 2.2 kW 50 Hz2.6 kW 60 HzVariants 6
KVT 3.100 vacuum pumpKVX 3.100Pumping speed 98 m³/h 50 Hz112 m³/h 60 HzUltimate pressure 100 mbarRated motor power 3 kW 50 Hz3.6 kW 60 HzVariants 8
KVT 3.140 vacuum pumpKVX 3.140Pumping speed 129 m³/h 50 Hz154 m³/h 60 HzUltimate pressure 100 mbarRated motor power 4 kW 50 Hz4.5 – 4.8 kW 60 HzVariants 7

Becker VARIAIR KVT series 3 models

VARIAIR KVT 3.80/0-400Pumping speed 76 m³/h 50 Hz76 m³/h 60 HzUltimate pressure 100 mbarRated motor power Variants
VARIAIR KVT 3.100/0-400Pumping speed 112 m³/h 50 Hz112 m³/h 60 HzUltimate pressure 100 mbarRated motor power Variants
VARIAIR KVT 3.140/0-400Pumping speed 145 m³/h 50 Hz145 m³/h 60 HzUltimate pressure 100 mbarRated motor power Variants

Becker VARIAIR KVX series 3 models

VARIAIR KVX 3.80/0-400Pumping speed 76 m³/h 50 Hz76 m³/h 60 HzUltimate pressure 100 mbarRated motor power Variants
VARIAIR KVX 3.100/0-400Pumping speed 112 m³/h 50 Hz112 m³/h 60 HzUltimate pressure 100 mbarRated motor power Variants
VARIAIR KVX 3.140/0-400Pumping speed 145 m³/h 50 Hz145 m³/h 60 HzUltimate pressure 100 mbarRated motor power Variants

Becker VARIAIR VTLF series 2 models

VARIAIR VTLF 2.250/0-400Pumping speed 280 m³/h 50 Hz280 m³/h 60 HzUltimate pressure 200 mbarRated motor power Variants
VARIAIR VTLF 2.500/0-400Pumping speed 560 m³/h 50 Hz560 m³/h 60 HzUltimate pressure 250 mbarRated motor power Variants

Becker VARIAIR VXLF series 2 models

VARIAIR VXLF 2.250/0-400Pumping speed 280 m³/h 50 Hz280 m³/h 60 HzUltimate pressure 200 mbarRated motor power Variants
VARIAIR VXLF 2.500/0-400Pumping speed 560 m³/h 50 Hz560 m³/h 60 HzUltimate pressure 250 mbarRated motor power Variants

Becker VTLF series 6 models

VTLF 2.200 vacuum pumpVTLF 2.200Pumping speed 178 m³/h 50 Hz218 m³/h 60 HzUltimate pressure 200 mbarRated motor power 4 kW 50 Hz4.8 kW 60 HzVariants 4
VTLF 2.250 vacuum pumpVTLF 2.250Pumping speed 244 m³/h 50 Hz286 m³/h 60 HzUltimate pressure 200 mbarRated motor power 5.5 kW 50 Hz6.6 kW 60 HzVariants 5
VTLF 2.250 SKPumping speed 247 m³/h 50 Hz295 m³/h 60 HzUltimate pressure 100 mbarRated motor power 7.5 kW 50 Hz9 kW 60 HzVariants 4
VTLF 2.360 vacuum pumpVTLF 2.360Pumping speed 351 m³/h 50 Hz402 m³/h 60 HzUltimate pressure 250 mbarRated motor power 11 kW 50 Hz13.2 kW 60 HzVariants 4
VTLF 2.400 vacuum pumpVTLF 2.400Pumping speed 390 m³/h 50 Hz460 m³/h 60 HzUltimate pressure 200 mbarRated motor power 7.5 – 11 kW 50 Hz9 – 13.2 kW 60 HzVariants 5
VTLF 2.500 vacuum pumpVTLF 2.500Pumping speed 495 m³/h 50 Hz570 m³/h 60 HzUltimate pressure 250 mbarRated motor power 11 kW 50 Hz13.2 kW 60 HzVariants 4

Becker VT series 7 models

VT 4.2 vacuum pumpVT 4.2Pumping speed 1.9 m³/h 50 Hz2.3 m³/h 60 HzUltimate pressure 400 mbarRated motor power 0.09 kW 50 Hz0.105 kW 60 HzVariants 1
VT 4.4 vacuum pumpVT 4.4Pumping speed 4.1 m³/h 50 Hz4.7 m³/h 60 HzUltimate pressure 150 mbarRated motor power 0.18 kW 50 Hz0.21 – 0.22 kW 60 HzVariants 2
VT 4.8 vacuum pumpVT 4.8Pumping speed 8 m³/h 50 Hz9.1 m³/h 60 HzUltimate pressure 150 mbarRated motor power 0.3 – 0.37 kW 50 Hz0.35 – 0.44 kW 60 HzVariants 3
VT 4.10 vacuum pumpVT 4.10Pumping speed 10 m³/h 50 Hz12 m³/h 60 HzUltimate pressure 150 mbarRated motor power 0.37 kW 50 Hz0.44 – 0.45 kW 60 HzVariants 3
VT 4.16 vacuum pumpVT 4.16Pumping speed 16 m³/h 50 Hz19 m³/h 60 HzUltimate pressure 150 mbarRated motor power 0.55 kW 50 Hz0.66 – 0.7 kW 60 HzVariants 4
VT 4.25 vacuum pumpVT 4.25Pumping speed 25 m³/h 50 Hz30 m³/h 60 HzUltimate pressure 150 mbarRated motor power 0.75 – 0.8 kW 50 Hz0.9 – 1 kW 60 HzVariants 5
VT 4.40 vacuum pumpVT 4.40Pumping speed 40 m³/h 50 Hz48 m³/h 60 HzUltimate pressure 150 mbarRated motor power 1.1 – 1.3 kW 50 Hz1.1 – 1.5 kW 60 HzVariants 5

Becker VXLF series 5 models

VTLF 2.200 vacuum pumpVXLF 2.200Pumping speed 178 m³/h 50 Hz218 m³/h 60 HzUltimate pressure 200 mbarRated motor power 4 kW 50 Hz4.8 kW 60 HzVariants 4
VTLF 2.250 vacuum pumpVXLF 2.250Pumping speed 244 m³/h 50 Hz286 m³/h 60 HzUltimate pressure 200 mbarRated motor power 5.5 kW 50 Hz6.6 kW 60 HzVariants 5
VXLF 2.250 SKPumping speed 247 m³/h 50 Hz295 m³/h 60 HzUltimate pressure 100 mbarRated motor power 7.5 kW 50 Hz9 kW 60 HzVariants 4
VTLF 2.400 vacuum pumpVXLF 2.400Pumping speed 390 m³/h 50 Hz460 m³/h 60 HzUltimate pressure 200 mbarRated motor power 7.5 – 11 kW 50 Hz9 – 13.2 kW 60 HzVariants 5
VTLF 2.500 vacuum pumpVXLF 2.500Pumping speed 495 m³/h 50 Hz570 m³/h 60 HzUltimate pressure 250 mbarRated motor power 11 kW 50 Hz13.2 kW 60 HzVariants 4

Becker VX series 4 models

VT 4.10 vacuum pumpVX 4.10Pumping speed 10 m³/h 50 Hz12 m³/h 60 HzUltimate pressure 100 mbarRated motor power 0.37 kW 50 Hz0.44 – 0.45 kW 60 HzVariants 3
VT 4.16 vacuum pumpVX 4.16Pumping speed 16 m³/h 50 Hz19 m³/h 60 HzUltimate pressure 100 mbarRated motor power 0.55 kW 50 Hz0.66 – 0.7 kW 60 HzVariants 4
VT 4.25 vacuum pumpVX 4.25Pumping speed 25 m³/h 50 Hz30 m³/h 60 HzUltimate pressure 100 mbarRated motor power 0.75 – 0.8 kW 50 Hz0.9 – 1 kW 60 HzVariants 5
VT 4.40 vacuum pumpVX 4.40Pumping speed 40 m³/h 50 Hz48 m³/h 60 HzUltimate pressure 100 mbarRated motor power 1.1 – 1.3 kW 50 Hz1.1 – 1.5 kW 60 HzVariants 5

Busch SECO series 10 models

SECO SV 1003 DPumping speed 3 m³/h 50 Hz3.6 m³/h 60 HzUltimate pressure 150 mbarRated motor power 0.1 kW 50 Hz0.12 kW 60 HzVariants 2
SECO SV 1005 DPumping speed 5 m³/h 50 Hz6 m³/h 60 HzUltimate pressure 150 mbarRated motor power 0.14 kW 50 Hz0.16 kW 60 HzVariants 3
SECO SV 1008 CPumping speed 7.3 m³/h 50 Hz8.8 m³/h 60 HzUltimate pressure 150 mbarRated motor power 0.25 kW 50 Hz0.3 kW 60 HzVariants 3
SECO SV 1010 CPumping speed 10 m³/h 50 Hz12 m³/h 60 HzUltimate pressure 150 mbarRated motor power 0.37 kW 50 Hz0.37 kW 60 HzVariants 2
SECO SV 1016 CPumping speed 16 m³/h 50 Hz19 m³/h 60 HzUltimate pressure 150 mbarRated motor power 0.55 kW 50 Hz0.55 kW 60 HzVariants 2
SECO SV 1025 CPumping speed 25 m³/h 50 Hz30 m³/h 60 HzUltimate pressure 120 mbarRated motor power 0.9 kW 50 Hz0.9 kW 60 HzVariants 1
SECO SV 1040 DPumping speed 40 m³/h 50 Hz48 m³/h 60 HzUltimate pressure 120 mbarRated motor power 1.25 kW 50 Hz1.25 kW 60 HzVariants 1
SECO SV 1063 BPumping speed 55 m³/h 50 Hz65 m³/h 60 HzUltimate pressure 100 mbarRated motor power 1.7 kW 50 Hz2.2 kW 60 HzVariants 1
SECO SV 1080 BPumping speed 62 m³/h 50 Hz77 m³/h 60 HzUltimate pressure 100 mbarRated motor power 2.2 kW 50 Hz3 kW 60 HzVariants 1
SECO SV 1100 CPumping speed 83 m³/h 50 Hz97 m³/h 60 HzUltimate pressure 100 mbarRated motor power 3 kW 50 Hz4 kW 60 HzVariants

Elmo Rietschle V-VTN series 3 models

V-VTN 16Pumping speed 17 m³/h 50 Hz20.5 m³/h 60 HzUltimate pressure 150 mbarRated motor power 0.55 kW 50 Hz0.63 kW 60 HzVariants
V-VTN 26Pumping speed 27 m³/h 50 Hz32 m³/h 60 HzUltimate pressure 150 mbarRated motor power 0.75 kW 50 Hz0.9 kW 60 HzVariants
V-VTN 41Pumping speed 42 m³/h 50 Hz50.4 m³/h 60 HzUltimate pressure 150 mbarRated motor power 1.5 kW 50 Hz1.8 kW 60 HzVariants

Elmo Rietschle V-VTR series 2 models

V-VTR 100Pumping speed 100 m³/h 50 Hz120 m³/h 60 HzUltimate pressure 150 mbarRated motor power 3 kW 50 Hz3.6 kW 60 HzVariants
V-VTR 140Pumping speed 130 m³/h 50 Hz155 m³/h 60 HzUltimate pressure 150 mbarRated motor power 4 kW 50 Hz4.8 kW 60 HzVariants

Models that a manufacturer no longer carries in its current range are not part of this overview; they are listed in the manufacturer’s “Outdated models” section.

ABCDEFGHIJK
  • Suction
  • Compression

Operating principle

How a dry-running 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 air, then shrink and compress it. There is no oil in the pump chamber.

The drawing shows the basic principle. The designs of the individual manufacturers differ in detail.

  1. SuctionThe air flows through the inlet port (A) and the inlet channel (B) into a cell (H) that grows as the rotor turns.
  2. CompressionAs soon as the cell is cut off from the inlet, it shrinks. The air is compressed in the compression chamber (I).
  3. DischargeThe compressed air leaves the pump through the discharge channel (J).

Key figures

The technology in figures

The ranges result from the current models in our range.

Pumping speed (50 Hz)

1.9 to 560 m³/h

in our range

Ultimate pressure

100 to 400 mbar

in our range

Rated motor power (50 Hz)

0.09 to 11 kW

in our range

Ultimate pressure compared (mbar, logarithmic)

10⁻³10⁻²10⁻¹11010²10³Dry-running rotary vane: all 65 modelsOil-lubricated rotary vane vacuum pumps: 255 models

For comparison: the oil-lubricated rotary vane vacuum pumps in our range reach 1 × 10⁻³ to 20 mbar.

What characterises the technology

Oil-free

The pumps work without oil in the pump chamber; the chambers are separated from one another by long-lasting vanes.

Simple design

One shaft and a direct drive – this results in robust pumps with low maintenance and operating costs.

Built-in accessories

Most models have built-in intake filters and control valves; further accessories can be fitted.

Humid air

With optional corrosion protection, the pumps are also suitable for extracting humid air.

Advantages

What speaks for this technology

  • Oil-free in the pump chamber
  • Low noise level
  • Robust and economical
  • Long service life
  • Low maintenance
  • Easy to operate
  • Reliable and heavy-duty
  • Comprehensive range of accessories

Applications

Where they work

  • General industrypick and place, handling technology
  • Printing industryprinting presses, print finishing machines
  • Packagingpackaging machines
  • Woodworking industry
  • Environmental technology

Frequently asked questions

Questions about dry-running rotary vane vacuum pumps

How does a dry-running 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 air – without oil in the pump chamber. The drawing in the section Operating principle shows every step.

What ultimate pressure do dry-running rotary vane vacuum pumps reach?

The models in our range state ultimate pressures from 100 to 400 mbar. In the product overview, the “Ultimate pressure” filter narrows down the selection.

What is the difference between dry-running and oil-lubricated rotary vane pumps?

Dry-running rotary vane vacuum pumps work without oil in the pump chamber. Oil-lubricated rotary vane vacuum pumps reach much lower ultimate pressures: in our range they lie between 1 × 10⁻³ and 20 mbar, for the dry-running pumps between 100 and 400 mbar.

From which manufacturers does Ehrler & Beck carry this technology?

Currently from Atlas Copco, Becker, Busch and Elmo Rietschle. The series are listed in the section Manufacturers and series.

How do I find the right model?

In the product overview, the filters narrow down the selection by the key figures of the models. For sizing, it is best to tell us the gas to be conveyed, the working pressure and the flow rate you need – we will be glad to advise you.

What do the figures for 50 Hz and 60 Hz mean?

Flow rate and rated motor power 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 spare parts and service?

Yes. Ehrler & Beck offers original spare parts and accessories as well as maintenance and repair.

Which model fits your process?

Tell us the gas to be conveyed, the working pressure and the flow rate you need – we will advise you on selection, spare parts and service.

Send an enquirySpare parts and accessoriesService