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
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. Typical applications are lyophilization, fine vacuum distillation and evacuation of small volumes, e.g., for utilization of µ-focus x-ray tubes or filling with pure gases.
Technical data and graphs
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. With oil mist filter FO and isolation valve VS 16
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Rated mains voltage range 1 - 230 V
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Mains frequency 1 - 50-60 Hz
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 -
Vacuum controller - 17 -
Lower ambient temperature (operation) - 12 °C
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Upper ambient temperature (operation) - 40 °C -
Lower ambient temperature (storage) - -10 °C