Control & Instrumentation Dry pumps offer high performance
Edwards, a leading global supplier of vacuum and abatement equipment and services, has launched a new range of dry pumps which delivers high vacuum performance and enables full process integration. The compact GXS pump features unique screw technology and enables users to optimise their processes resulting in a low cost of ownership and a reduced footprint. The GXS is robust and reliable. It has a long pump service life of up to five years and is virtually maintenance free, even in harsh 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 provides faster pump down compared to competitive products and gives ultimate vacuum down to 1x10-3 mbar (7.5x10-4 Torr). This results in optimum performance in a variety of applications from light duty through to load-lock and harsh process.
The pump design incorporates a number of innovative features which contribute to its smooth quiet running, 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 64 dB(A).
The GXS pump enables users to minimise their 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, 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
Precise control-filling from K-Tron
K-Tron Process Group introduces the New K-Tron Premier LSR Controller. The LSR Controller consolidates several applications into one system allowing the LSR to control either a K-Tron Premier self contained loader or a single central receiver for pneumatically conveying a wide variety of bulk materials.
The controller is locally mounted with all 24 VDC unit devices pre-wired. An auto-switching power supply accepts 115 or 230 VAC. The front panel of the controller includes a potentiometer to set draw times, on/off switch, and multicolored LEDs indicate power/alarm, loading status and dump status. Available materials of construction for the enclosure are polycarbonate and stainless steel.
The LSR Controller allows for nine different operating modes selectable with internal rotary switch and 10-position dip switch. The economical controller provides precise, reliable control filling by time or level and various discharge configurations including gravity or powered gate. Control parameters include pulse cleaning, purge (line clearance) valve, ratio loading, level sensor, fill (sequence) valve, by-pass (vacuum breaker) valve and one vacuum pump motor when controlling a single central receiver. Using a serial connection the LSR can also be networked to external devices such as the KCM, (K-Tron Feeders Control Module), KSU-II (K-Tron Single Unit Display II) or K-Vision Single Line Controller.
For more information visit:
www.ktron.com 32 Solids & Bulk Handling • August 2010
www.solidsandbulk.co.uk
dedicated process controllers for full system integration. “At Edwards we have extensive experience of designing pumps for harsh process vacuum applications requiring dust and process contaminants handling,” says Nick Giles, Edwards product marketing manger – Industrial Vacuum. “We have successfully developed a new range of dry pumps, covering a wide range of applications, offering high reliability and enabling customers to optimise their processes with reduced cost of ownership. The efficient GXS pumps are 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. For more information visit:
www.edwardsvacuum.com/gxs
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