Chemically resistant dosing pumps
August 2009
Valves, Actuators & Pump Control
An increasing number of liquid handling pumps used globally are supplied in seal-less designs. A seal-less pump offers several advantages over its dynamically sealed predecessor according to Verder Pumps SA (VPSA).
VPSA offers a range of chemically resistant dosing seal-less pumps for bench-top and laboratory use. These tube pumps offer minimised maintenance, increased reliability, and maximum safety.
Verderflex tube pumps provide precision pumping and dispensing solutions for the laboratory industry. “The pumps range from simple manually variable pumps to versatile units with sophisticated dispensing profiles. Capable of speed and accuracy, the easy to use pumps are perfect for dispensing delicate, viscous, corrosive, shear sensitive or abrasive fluids,” says VPSA director Keith Gass.
The hygienic pumping solution ensures that only the sterilisable tube is in contact with the pumped liquid. Verderflex tube pumps offer dispensing flows from a few ml/min up to 1,3 l/min at a dosing accuracy of ±0,5%.
The Verderflex Smart and Verderflex Scientific programmable, bench-top tube pumps can be:
* Simply manually controlled – ideal for small scale production.
* Remotely controlled with external sensors for feedback.
* Fully automatic with optional multi-channel heads at the heart of production systems.
Both families have quick tube changeover ideal when dispensing a range of different chemicals or dosing different batch sizes.
“Often the bio-technology industry produces culture solutions that are fragile and even the gentle pumping action of the standard peristaltic pump is deemed too harsh, affecting yields. In such situations optional low pulsation 6 Roller pumps heads can be supplied,” says Gass. “Similarly, where aseptic pumping conditions are the norm, the tube pump’s only contact part is the sterilisable tube minimising process validation needs and ensuring total containment and isolation of active cultures.”
Verder combines product knowledge with extensive experience in the field of sales and marketing. Clients therefore receive not only products of high quality, but also quick delivery times, competitive prices and excellent service. VPSA offer consultations to discuss pumping difficulties: the company says its total commitment to ensure that the most-suited pump is selected for the right application is what sets it apart.
“At VPSA, we remain determined to provide the most efficient and cost effective solutions. Our impressive range includes peristaltic hose pumps, air-diaphragm pumps, magnetic drive centrifugal pumps, progressive cavity screw pumps, and reciprocating diaphragm pumps,” concludes Gass.
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