RZ 2.5Rotary vane pump

high flow rates even at vacuum levels approaching ultimate vacuum
very good ultimate vacuum even with gas ballast
vacuum-tight at switch-off; external anti-suckback valve not needed
large oil volume: Long intervals between oil changes
ease of maintenance due to telescopic design

Ultimate vacuum

2 x 10-3 mbar

Ultimate vacuum with gas ballast

1 x 10-2 mbar

Max. pumping speed 50 Hz

2.3 m3/h

Rotary vane pump in action

The one-stage RE 2.5 and two-stage RZ 2.5 are high-performance rotary vane pumps with extra compact design and low weight. They are the ideal solution for a wide range of laboratory and process applications that require low ultimate vacuum at medium gas flow rate. The RZ 2.5 is also available combined with the oil mist filter (FO) and the VS 16 valve as a package.

Information on the disposal of old devices »
Technical data and graphs

Max. pumping speed 50 Hz	2.3 m3/h
Max. pumping speed 60 Hz	1.65 cfm
Ultimate partial vacuum (abs.) without gas ballast	4 x 10-4 mbar
Ultimate vacuum	2 x 10-3 mbar / 1.5 x 10-3 torr
Ultimate vacuum with gas ballast	1 x 10-2 mbar / 0.75 x 10-2 torr
Number of stages	2
Lower ambient temperature (operation)	12 °C
Upper ambient temperature (operation)	40 °C
Lower ambient temperature (storage)	-10 °C
Upper ambient temperature (storage)	60 °C
Max. back pressure (abs.)	1.1 bar
Oil capacity (B-Oil) min.	0.36 l
Oil capacity (B-Oil) max.	0.84 l
Inlet connection	small flange KF DN 16
Outlet connection	Hose nozzle DN 8-10 mm
Rated motor power	0.1 kW
Rated motor speed at 50/60 Hz	1500/1800 min-1
Protection class IEC 60529	IP 40
Dimension L in mm	390 mm
Dimension B in mm	156 mm
Dimension H in mm	240 mm
Weight	14.2 kg
Noise (sound pressure level) in dBA at 50 Hz or 1500 rpm/62% (VARIO)/1500 rpm (VARIO-SP)/12500 Upm (VACUU·PURE®)	48 dBA
NRTL certification	No
Items supplied	Pump oil filled and completely mounted, ready for use, with manual.
Rated mains voltage range 1	230 V
Mains frequency 1	50-60 Hz