XDS35iE NGB Dry Scroll Pump

XDS35i and XDS35i Enhanced pumps are available as standard pumps with gas ballast, versions of the pump with no Gas Ballast (well suited for rare gas recirculation and gas recovery applications) and the C versions of the pumps featuring Chemraz® internal valves and stainless steel fittings for extra protection from the pumped media.

The XDS46i shares many of the same features of the XDS35i but with a peak speed of 40 m3h-1. The pump has been optimised for maximum pumping speed at inlet pressures between 1 mbar and 10 mbar, making it ideally suited for LCMS and ICPMS applications requiring higher pumping speeds. 

The C variant has been modified so that it is more suitable for use on vapour handling processes and may be used in some applications using corrosive substances. The C version is fitted with Chemraz® internal valve pads and stainless steel exhaust port.

Chemraz® is a registered trademark of Greene Tweed.

Technology

Scroll pumps use intermeshing fixed and orbital scrolls to form non-contacting, crescent shaped gas pockets that are continuously compressed by the orbiting action. This means that, unlike oil-sealed rotary pumps, there is no sealant or lubricant required in the swept volume of the pump.

Applications

• Automotive; brake line and air conditioning evacuation
• Backing turbomolecular  pumps
• Chemical applications including gel dryers and solvent recovery
• Coating systems
• High energy physics
• Mass spectrometry

Features and Benefits

• Bearing Shield: ensures separation between process gases and bearing lubrication to ensure clean vacuum and no possibility of contamination to lubrication from process gases, which prolongs bearing life.
• Smart Motor Drive: means consistent performance globally, pump overload protection and remote start/stop capability.
• High Flow Gas Ballast Feature: allows pumping of vapours including water vapour at up to 240 gh-1.
• Simple Single Sided Scroll Design: allows maintenance to be done in minutes for low cost of ownership and maximum up-time.
• Take Another Step: the Enhanced versions offer up to 20% lower peak power requirements during initial pump down which means it has the ability to pump down large volume chambers with no loss of performance and has up to 25% more pumping speed at these roughing pressures which helps on higher frequency cycling applications as well.

* Use at higher inlet pressure speeds up tip seal wear
(1) measured as total pressure
(2) These pumps are designed to pump down from atmosphericpressure, but prolonged operation at inlet pressures higher than specified mayreduce bearing life.
(3) for UK 240 V use 13 A fuse