Girovac Ltd


The nXDS pump is a truly dry vacuum pump, as all the bearings, with their hydrocarbon lubricant, are isolated from the vacuum space. The nXDS pump is suitable for use on vapour handling processes, and may be used for some pumping applications involving corrosive substances and particulates. For information on pumping flammable gases, contact us.


• Lubricant-free within the vacuum envelope and hermetically sealed means a totally clean and dry vacuum to prevent cross contamination.
• Advanced scroll-form and tip-seal technologies deliver best-in-class vacuum performance and unrivalled ultimate vacuum levels.
• Unique tip seal design significantly reduces wear to minimise maintenance and extend service life.
• Quiet operation with typical noise during operation
• Advanced interface providing a variety of traditional and analogue and digital control methods enabling remote control/monitoring via RS232 or RS485.
• Integrated inverter drive with auto sensing input delivers optimised pumping performance globally.



Nominal rotational speed 1800 rpm
Displacement 28.0 m3h-1  /  16.5 ft3min-1
Peak pumping speed 22.0 m3h-1  /  13.0 ft3min-1
Ultimate vacuum (total pressure) 0.030 mbar  /  0.022 Torr
Minimum standby rotational speed 1200 rpm
Speed control resolution (percentage of full rotation speed) 1%
Pumping speed at minimum rotational speed 10
Maximum continuous inlet pressure 50 mbar
Motor power 1-ph 260 W
Power connector 1-ph IEC EN60320 C13
Recommended fuse 10A, 250Vac rms
Weight 25.6 kg  /  56 lb
Inlet flange NW25
Exhaust flange NW25
Noise level 52 dB(A)
Vibration at inlet flange < 4.5 mms-1   (rms)
Leak tightness (static) < 1x10-6 mbar ls-1
Operating temperature range 10 to 40 °C  /  41 to 104 °F

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