
Rotary vane pumps VT4.2 to VT4.8
Fürgut VT4 – for single-phase and three-phase AC
The VT4 pumps are Fürgut’s mains-voltage variant: oil-free rotary vane vacuum pumps with single-phase or three-phase motor for stationary devices and systems.
Three sizes pump 1.9 to 9.5 m³/h and reach an ultimate pressure down to 150 mbar absolute.
Pumping speed
up to 9.5 m³/h
Ultimate pressure
down to 150 mbar abs.
Motor power
0.09 to 0.44 kW
Drive
1~ or 3~
Why the VT4?
Where mains voltage is available, the VT4 pumps are the robust choice for continuous operation in devices and small systems.
- Oil-free, special carbon vanes
- Single-phase or three-phase motor, 50 and 60 Hz
- Protection class IP 54
- Quiet: 56 to 61 dB(A)
- For continuous operation
Typical applications
Laboratory
Vacuum for filtration and drying.
Equipment and plant engineering
Stationary generation of vacuum and pressure.
Packaging
Vacuum for holding and suction.
Measurement technology
Mains-powered sampling.
Technical data
Types: VT 4.2, VT 4.4, VT 4.8.
VT 4.2 – VT 4.8, performance data
| Type | Pumping speed (max.) | Ultimate pressure | Motor power 3~ | Motor 3~ | Motor power 1~ | Motor 1~ | Sound pressure level ²⁾ | Weight | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| [m³/h] 50 Hz | [m³/h] 60 Hz | [mbar] (max. abs. ¹⁾) | [kW] 50 Hz | [kW] 60 Hz | No. | [kW] 50 Hz | [kW] 60 Hz | No. | [dB(A)] 50 Hz | [dB(A)] 60 Hz | [kg] | |
| VT 4.2 | 1,9 | 2,3 | 400 | – | – | – | 0,09 | 0,105 | 3 | 56 | 58 | 7,0 |
| VT 4.4 | 4,1 | 4,7 | 150 | 0,18 | 0,21 | 1 | 0,18 | 0,210 | 4 | 59 | 61 | 7,0 |
| VT 4.8 | 8,0 | 9,5 | 150 | 0,37 | 0,44 | 2 | 0,35 | 0,420 | 5 | 58 | 61 | 11,5 |
VT 4.2 – VT 4.8, motors
| Motor no. | Mains | Power | 50 Hz: voltage | 50 Hz: speed | 50 Hz: current | 60 Hz: voltage | 60 Hz: speed | 60 Hz: current | Protection class, insulation class | Capacitor ³⁾ |
|---|---|---|---|---|---|---|---|---|---|---|
| [kW] | [V] | [min⁻¹⁾ | [A] | [V] | [min⁻¹⁾ | [A] | ||||
| 1 | 3~ | 0,18 / 0,210 | 175-260/300-450 | 2800 | 1,08/0,62 | 202-300/350-520 | 3360 | 1,08/0,62 | IP 54, ISO F | – |
| 2 | 3~ | 0,37 / 0,440 | 175-260/300-450 | 2800 | 2,35/1,35 | 202-300/350-520 | 3150 | 2,40/1,40 | IP 54, ISO F | – |
| 3 | 1~ | 0,09 / 0,105 | 230 ±10% | 1320 | 1,11 | 230 ±10% | 1570 | 1,07 | IP 54, ISO F | 4,00 µF / 400 V |
| 4 | 1~ | 0,18 / 0,210 | 230 ±10% | 2750 | 1,65 | 230 ±10% | 3250 | 1,65 | IP 54, ISO F | 4,50 µF / 400 V |
| 5 | 1~ | 0,35 / 0,420 | 230 ±10% | 2700 | 3,90 | 230 ±10% | 3200 | 3,40 | IP 54, ISO F | 10,0 µF / 450 V |
1) mbar absolute → mbar relative = (x mbar abs.) – 1000
2) at medium load, both sides ducted: DIN EN ISO 2151 + DIN EN ISO 3744 (KpA = 3 dB(A))
3) The capacitor size and position may change if the voltage/frequency changes!
Frequently asked questions
Which gases can be conveyed?
The pumps are designed for non-toxic, non-flammable and non-explosive gases. For other media, we will be glad to advise you on alternatives.
How long does a miniature rotary vane pump last?
Depending on the load, the special carbon vanes reach up to 10,000 operating hours. At reduced voltage and low load they last particularly long.
Are the pumps suitable for installation in devices?
Yes, that is what they are made for: small, light and with low current consumption, for example for analysers, medical and laboratory technology. For series production, we define the right version with you.
Where can I get pumps and spare parts?
From us. We supply Fürgut pumps individually and for series production, advise you on the selection and obtain replacements when a pump needs to be exchanged after many operating hours.
Downloads

Which pump suits your device?
Flow rate, pressure or vacuum, voltage and installation space determine the choice. We advise you and supply the right Fürgut pump, including for series production.