The new GXS pumps have high peak pumping speeds of up to 436 cfm, and when combined with a booster pump can offer even higher speeds of up to 1978 cfm, while achieving ultimate vacuum typically down to 3.8×10-4 Torr without purge.
EDWARDS, a manufacturer of vacuum and abatement equipment and services, is extending its range of GXS dry vacuum pumps to meet the demands of high-volume industrial OEMs and end users. The new GXS450 and GXS750 pumps and combinations introduce new screw technology and a high-efficiency drive to deliver high-vacuum performance. This makes it possible for users to optimize their processes and achieve a low cost of ownership and a reduced footprint.
The new GXS pumps have high peak pumping speeds of up to 436 cfm, and when combined with a booster pump can offer even higher speeds of up to 1978 cfm, while achieving ultimate vacuum typically down to 3.8×10-4 Torr without purge. These high-performing pumps are ideal for many applications that require rapid pumping of large gas volumes, including degassing of steel and other metallurgical processes (among other industrial processes requiring a vacuum), but also can maintain a low process pressure for extended periods.
The GXS range is known to operate reliably in harsh applications, and the new variants extend the same benefits into larger models. There are now 10 variants in the range to suit all applications. The GXS450 and GXS750 are available as stand-alone pumps or as booster combinations — GXS450/2600, GXS450/4200, GXS750/2600 or GXS750/4200.) The smaller versions include the GXS160 and GXS250 or GXS160/1750 and GXS250/2600. Advanced temperature control, low maintenance, and long service intervals of up to five years, make the GXS series a robust and economical vacuum pump option for industrial applications.
GXS pumps also have a long service life and are virtually maintenance free, even in demanding applications. The pump mechanism can be cleaned easily using the high flow purge and solvent flush accessory, which removes the need to partially strip the pump. This also decreases costly downtime associated with using alternative products that require manual cleaning.
The pump design incorporates a number of novel features that contribute to smooth, quiet operation, excellent vacuum performance, and low running cost. The shafts on the GXS are supported at both ends for increased rigidity, resulting in improved dust handling, reduced vibration, and noise levels below 70 dB(A).
The GXS pump helps users to minimize their operations’ environmental impact, too, as it has reduced gas and power consumption. The motor is matched to the inverter to give up to 15% efficiency improvement compared to current designs, which further reduces the cost of ownership. All pumps are fitted with a controller as standard, providing users with reduced installation cost and enhanced control features including stand-by 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.
“We are delighted to introduce the new larger versions to our range of GXS dry pumps,” said Owain Charles, product manager. “At Edwards we have extensive experience of designing pumps for harsh process vacuum applications and now customers requiring higher pumping capacity can realize the full benefits of our intelligent screw technology.”