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Edwards launches new variant to its XDS dry scroll pump range, for more aggressive chemical applications

Edwards has launched a special variant to its XDS range of dry scroll pumps, suitable for use in more aggressive applications. The new 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. These new features enable them to be used on applications where the exposed standard fluoroelastomer valve pads may be affected by the media being pumped, and cause rapid deterioration.

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XDS35iC and XDS45iC dry scroll pumps, with peak speeds of 35 and 40 m3 h-1 respectively, can handle up to 240 grammes per hour of water vapour and are ideal in harsh processes including wet chemistry applications such as rotary evaporation and distillation processes. The simple single sided scroll design allows routine maintenance to be done in minutes for maximum up-time.

“We have seen an increase in demand for scroll pumps which are suitable for more challenging gases and vapour loads. The new XDS-C will ensure we can support our customers in more aggressive applications“, said David Goodwin, Product Manager Edwards. “We have also introduced two new spares kits which can be used in conjunction with a tip seal change kit to allow customers to upgrade existing XDS variants.”

Edwards’ XDS dry scroll pump provides an alternative to oil sealed rotary vane pumps and other dry technologies. It is lubricant free and hermetically sealed so it provides a totally 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 m3 h-1 .

For more information on Edwards’ products, they will be exhibiting at

Pittcon, Atlanta, USA
6-10 March,
Booth Number 646

Chemraz® is a registered trademark of Greene Tweed.

Further information about Edwards can be found at .


Rebecca Walder
+44 (0) 1293 603103



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