Edwards - nXDS20i Dry Scroll Vacuum Pump

Overview

With exceptional pumping capability, ultimate vacuum performance and state-of-the-art design features, the nXDS dry scroll pump is the best performing pump in its class. 

nXDS improves on the original XDS pump technology by offering increased pumping speeds, combined with lower ultimate pressures, low power consumption and reduced noise. The gas ballast allows for pumping of condensable vapors, including water, solvents, dilute acids and bases.  nXDS pumps feature the very latest in tip seal technology, giving a significantly longer life between tip seal changes. 

nXDS-C has been modified so that it is more suitable for use on vapor handling processes and may be used in some applications involving corrosive substances. This chemically resistant version is fitted with Chemraz® internal valves and stainless steel fittings.  

nXDS-R has the gas ballast blanked off so it cannot be accidentally opened. This is useful for applications such as rare gas recirculation or gas recovery.

 

Applications

• Backing turbomolecular pumps
• Chamber evacuation
• Chemical applications including gel dryers and solvent recovery
• Electron microscopy
• High energy physics
• Mass spectrometry
 

 

Features and Benefits

  • 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 unrivaled ultimate vacuum levels.
  • Unique tip seal design significantly reduces wear to minimize maintenance and extend service life. 
  • Quiet operation with typical noise during operation < 52 dB(A) for minimal environmental impact. 
  • 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 optimized pumping performance globally. 
  • Pump range includes 6, 10, 15 and 20 m3h-1.

 

Technical Data

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

 

Acoustic Enclosure Datasheet

Acoustic Enclosure Datasheet

 

nXDS Brochure

nXDS Brochure