Dispensing pumps have repeatability, accuracy

Positive displacement technology for the dispensing or dosing of liquids brings benefits of repeatability, precision, reliability and accuracy. preeflow volumetric dispensing pumps are used in electronics and semiconductor manufacturing, aerospace, medical device assembly and pharmaceuticals sectors, to apply small quantities (microlitres) of adhesive to the dosing of fluids into vials.

For example, in the application of adhesive in medical catheter manufacturing, full automation is not always feasible, and the bonding process can be manual. Catheters have small bond areas, and squeeze out or witness of excess adhesive would be unacceptable, so adhesive placement and amount need to be precise. The use of a preeflow eco-PEN, triggered by a foot pedal, gives the assembly operator more control of this intricate operation and confidence in the adhesive amount, says Intertronics.

The company’s volumetric pumps dispense from microliter, with an accuracy of ±1% independently of viscosity, while exhibiting low shear force on any media. They can dose continuously at rates up to 60ml/minute. The direction of flow can be reversed leading to clean cut off of the material, preventing drips or stringing.



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