Accurate, versatile, chemical pumps

Published: 1-Nov-2017

Watson-Marlow Fluid Technology Group introduce Qdos pumps, offering increased flow rates

Expensive pre-cleaning chemicals require accurate dosing. Qdos pumps from Watson-Marlow Fluid Technology Group offer accuracy, ease-of-operation and ease-of-maintenance, making them an attractive choice.

Qdos pumps deliver flow rates that remain constant right up to 7 bar (100 psi) giving users a unique advantage over diaphragm metering pumps. Designed as a drop in replacement to diaphragm pumps, the Qdos peristaltic metering pump offers long maintenance intervals, reducing the impact of process downtime and lowering the overall cost of ownership.

Advantages of Qdos pumps include the following:

  • cut chemical cost through higher accuracy metering
  • simple drop-in installation eliminates ancillary equipment
  • reduced maintenance with single, no-tolls, component replacement
  • flow rates from 0.1–2000 ml/min

Christian Paschen, Commercial Manager at Watson-Marlow Fluid Technology Group in Germany, said: "Peristaltic pumps like Qdos lend themselves very well to the dosing of highly concentrated chemicals due to their high accuracy. However, Qdos not only offers reliable accuracy to within ±1%, but intuitive ease-of-use: flow volumes can be entered in millilitres via the numeric display."

Peristaltic versus diaphragm pumps

Another advantage of peristaltic pumps in contrast to diaphragm pumps is that they have no seals or non-return valves, and therefore require only minimal maintenance. The only wear part of the whole unit is the pump head, which can be replaced on site within minutes. Furthermore, the flow direction on the pump can be reversed easily for this purpose, allowing the fluid to be fed back into the storage vessel from the pipe system.

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