Vacuum pump with high suction at low pressures

N 920 diaphragm vacuum pumps

A vacuum pump's pumping capacity at atmospheric pressure is a commonly cited measure of performance.

But in practice, suction capacity at low pressures has proven to be even more relevant.

This is where the diaphragm vacuum pumps of the N 920 series from KNF Neuberger set new standards.

Thanks to a patented diaphragm stabilisation system, they are able to pump considerably higher volumes under vacuum than conventional diaphragm pumps - and do it with greater long-term vacuum stability.

Their performance makes these units ideal for service as roughing pumps on turbo molecular pumps, for analytical engineering, and general laboratory use.

The new model N 920.29.18 now has a knob-type potentiometer that permits adjustment of the pumping capacities directly at the pump.

As a result, the pump is ideally suited for individual, flexible deployment in the laboratory.

Its compact design saves space on a lab bench.

The suction capacity is up to 1.3 cubic metres /hour and the ultimate pressure is <1.5 mbar absolute.

All vacuum pumps of the N 920 series transfer analytically uncontaminated, work quietly and with low vibrations.

They are driven by cool-running motors that work with high efficiency and low power consumption and are able to automatically adapt to the electrical power supply.

As a result, these pumps can operate on voltages that range from 90 to 264 V as well as with 50 or 60 Hz frequency.

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