Edwards launches the XDS-C dry scroll pump for use in more aggressive applications. XDS-C dry scroll pumps are fitted with a Chemraz gas ballast non return valve pad and exhaust valve pad, and stainless steel exhaust flange, enabling the pumps’ use on applications where the exposed standard fluoroelastomer valve pads may be affected by the pumped media and cause rapid deterioration.
XDS35iC and XDS45iC dry scroll pumps, with peak speeds of 35 and 40 m3h-1 respectively, can reportedly handle up to 240 grams per hour of water vapor. They are suited for harsh processes including wet chemistry applications such as rotary evaporation and distillation processes. The simple, single-sided scroll design allows routine maintenance in minutes, according to the company.
Edwards’ XDS dry scroll pumps provide an alternative to oil sealed rotary vane pumps and other dry technologies. They are lubricant free and hermetically sealed to provide a clean and dry vacuum to prevent cross contamination. Unlike other scroll pumps, the bearings in the XDS range are isolated by the bellows, so that any aggressive chemicals involved in the process will not attack them.
The XDS35iC and XDS45iC extend the existing range of nXDS-C dry scroll pumps with pumping speeds from 6 to 40 m3h-1.