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Edwards has launched a range of dry pumps for harsh process vacuum applications requiring dust and process contaminants handling.

The compact GXS pump features screw technology and enables users to optimise processes.

It has a long pump service life of up to five years and is virtually maintenance free, even in harsh applications, according to Edwards.

The pump mechanism can be cleaned using the high flow purge and solvent flush accessory, which removes the need to partially strip the pump.

This also decreases downtime associated with using alternative products that require manual cleaning.

The pump is said to provide faster pump down compared to competing products and gives ultimate vacuum down to 1×10-3mbar (7.5×10-4 Torr).

This results in optimum performance in a variety of applications from light duty through to load-lock and harsh process.

The shafts on the GXS are supported at both ends for increased rigidity, resulting in improved dust handling, reduced vibration and noise levels below 64dB(A).

The GXS pump enables users to minimise environmental impact as it has reduced gas and power consumption.

The motor is matched to the inverter to give up to 15 per cent efficiency improvement compared to current designs.

All pumps are fitted with a controller as standard, providing users with reduced installation cost and enhanced control features including standby for reduced utility consumption, pressure control and start-up and shutdown routines.

GXS pumps may be linked to customers dedicated process controllers for full system integration.

The GXS pump is available in four variants: stand-alone GXS160 and GXS250, or as booster combinations GXS160/1750 and GXS250/2600.

The pump and booster combinations can be configured for optimum performance in a wide variety of applications including crystal pulling, lamination, coating, metallurgy, pharmaceutical and food process freeze drying, packaging, plasma sterilisation, vacuum chamber evacuation and high-purity gas cylinder filling.

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