Dry Scroll Vacuum Pump Variant

Edwards has launched a special variant to its NXDS range of dry scroll vacuum pumps which is ideally suited for pumping rare or critical gases.

These pumps are generally free of lubrication in the entire pumped path of the gas and the special NXDS-R variant is optimized for situations where an application demands the pumping or recirculation of rare or critical gases without the risk of accidental introduction of atmospheric air. By removing the gas ballast feature, which is significant for applications where condensible vapor removal is important, this creates a hermetically sealed pump from inlet to outlet with no moving seals and no possibility of accidental introduction of atmospheric air.