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ViscoTec preeflow® eco-PEN330 volume valve

The volume valve ViscoTec preeflow® eco-PEN330 was developed and tested for precise dosing of media with low to high viscosity at highest repeatability.

Technical Questions

€2,834.89 excl. VAT.

From 300,00 € a month with lease buy or installment.

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Areas of responsibility

Electronic components, photovoltaics, laboratory, semiconductor manufacturing, medical technology, optics and photonics, LCD/LED, biochemistry, SMD/SMT

Material examples

Adhesives, Silicones 1K (RTV), Sealants, UV Adhesives, Acids, Anaerobic Adhesives, Conformal Coatings, Oils/Greases/Lubricants, Solder Paste, FDA Compliant


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The ViscoTec preeflow® eco-PEN330 is a new volumetric metering system. Here, the proven technology of the eccentric screw pump is incorporated in a miniaturized design. 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.


The preeflow® eco-PEN330 is a rotating, pressure-tight displacement system. It consists of a stainless steel rotor and an elastomeric stator which together form a self-sealing system. This creates individual, self-contained volume chambers. The rotary motion of the stator pushes the volume chambers further, thus creating the conveyance. For low-viscosity products, the system is self-priming. The EC200 or "plug n dose" control system is required for control.

Technical data

  • Dimension: 29 x 29 x 228 mm
  • Mode of operation: Volumetric
  • Drive: Electric motor
  • Wetted parts: HD-POM/stainless steel
  • Content Vol: 4cc dead volume
  • Material outlet: Luer-Lock, O-ring
  • Flow rate: 0.2 - 3.3 ml/min
  • Material pressure (max.): 20 bar
  • Weight: 300g
  • Voltage: 18 - 24V DC

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