KNF Neuberger has introduced a universal, offering high pumping speed. An innovative diaphragm stabilisation system enables each unit to pump down with high efficiency and process reliability, especially at low absolute pressures. Other features include uncontaminated pumping and evacuation, high gas tightness, integrated block connection of pump heads (replacing conventional pneumatic connections), and a cool running, high efficiency motor with speed control option. The new N920 is available in both portable and OEM versions with ac or dc power connections. Performance gives a suction speed of up to 1.3m3/h at atmospheric pressure and 1,500rpm. Ultimate vacuum is better than 1.5 mbar absolute.