EMS Technical Data Sheets

Edwards RV8 Vacuum Pump

EMS Catalog #91025, 91025-E

The RV series of small oil sealed rotary vane pumps deliver excellent ultimate vacuum pressure, high pumping speeds and superior vapor handling capabilities with quiet operation. With over 300,000 units produced, these pumps offer proven performance that sets the industry standard for R&D and scientific pumping applications.

All of our RV pumps are significantly quieter – noise levels of 48 dBA 50Hz are typically half the noise of a conventional pump and have been achieved by extensive work on the drive train and motor.

The pumps have the unique ability to deliver ultimate vacuum in both high vacuum and high throughput modes, with or without gas ballast. This gives the user an unrivalled opportunity to select the optimum pumping performance without compromising the application.

In its high vacuum mode, the RV pump is ideal for analytical instruments, electron microscopes, physics research, backing turbo pumps, TV tube pumping and leak detection applications. Configure the same pump in the high throughput mode, and it becomes suitable for mass spectrometer inlet systems, distillation, laboratory furnaces, backing vapor pumps, solvent concentration, freeze drying and other drying applications.

The simple to use mode selector and accessible, three-position gas ballast control, allow the pump to be reconfigured at any time, even when the pump is running.

The Edwards RV8 Vacuum Pump can be used in a variety of applications:

Technical Data

  50Hz 9.7m3h-1 / 5.7 ft3min-1
  60Hz 11.7 m3h-1 / 6.9ft3min-1
Speed (Pneurop 6602)
  50Hz 8.5 m3h-1 / 5 ft3min-1
  60Hz 10 m3h-1 / 5.9 ft3min-1
Ultimate Pressure 2 x 10-3 mbar / 1.5 x 10-3 Torr
Ultimate Pressure GB I 3 x 10-2 mbar / 2.3 x 10-2 Torr
Ultimate Pressure GB II 6 x 10-2 mbar / 4.6 x 10-2 Torr
Ultimate Pressure with Fomblin® 2 x 10-2 mbar / 1.5 x 10-2 Torr
Max Inlet Pressure for Water Vapor 38 mbar / 28.5 Torr
Max Water Vapor Pumping Rate – GB I 60 gh-1
Max Water Vapor Pumping Rate – GB II 220 gh-1
Max Allowed Outlet Pressure 0.2 bar gauge / 2.8 psig
Max Allowed Inlet and Gas Ballast Pressure 0.5 bar gauge / 7 psig
Motor Power 50/60Hz 450 / 550W
Power Connector 1-ph IEC EN60320 C13
Nominal Rotation Speed 50/60Hz 1500 / 1800rpm
Weight (without oil) 28 kg / 61.6 lb
Oil Capacity min/max 0.45 / 0.75 liters
Recommended Oil Ultragrade 19
Inlet Flange NW25
Exhaust Flange NW25
Noise Llevel 48 dB(A) @ 50 Hz
Operating Temperature Range 12-40°C


1. High vacuum mode, gas ballast = 0
2. High throughput mode, gas ballast = 0 and high vacuum mode, gas ballast = 1
3. High vacuum and throughput modes, gas ballast = II


1. 1-Phase motor
2. 3-Phase motor

Product Information

Edwards RV8 Vacuum Pump