The ViscoTec preeflow® eco-PEN300 is a new volumetric metering system. Here, the proven technology of the eccentric screw pump is incorporated in a miniaturized version. New manufacturing processes and materials have made it possible to transfer the complex geometries of the screw conveyor and the stator into this small design. Now, for the first time, media in very small quantities can be conveyed fully volumetrically both forwards and backwards. This also ensures a clean break-off of the medium.

Functionality

The preeflow® eco-PEN is a rotating, absolutely pressure-tight displacement system which consists of a self-sealing rotor and stator. The controlled rotary motion of the rotor generates the delivery by displacing the medium in the stator. Conveying without changing the medium is guaranteed. Since conveying can also be performed in reverse, preeflow® guarantees a clean, controlled material or medium break-off without dripping.

Technical data

• Dimension: 29 x 29 x 216mm
• Mode of operation: Volumetric
  
• Drive: Electromotive
  
• Medium contact: HD-POM/Stainless steel
  
• Content Vol: 3 cc dead volume
  
• Material outlet: Luer-Lock, O-ring
  
• Flow rate: 0.12 - 1.48 ml/min
  
• Material pressure (max.): 20 bar
  
• Weight: 280 g
  

Further technical data can be taken from the operating instructions!