Your spraying system for precise spraying and nebulization

preeflow® eco-SPRAY

The precision volume spray dispenser eco-SPRAY, made by ViscoTec, is suitable for various applications in different spraying areas.
The revolutionary combination of the reliable endless piston principle and a low-flow spray chamber guarantees perfect spraying of low to high viscosity fluids – with high edge definition!

The fine spray system eco-SPRAY from preeflow® convinces

Viscosity independent spraying

Spraying of defined quantity

High edge definition

Regardless of primary pressure

Controllable round spray

Consistent spray-image

Constant amount/area


Smallest spray quantity: 0.05 ml
Adjustable dosing flow: 0.5 to 6.0 ml/min
Dimensions: Length 228 mm, ø 35 mm


The innovative precision volume dispenser eco-SPRAY made by ViscoTec offers a wide range of applications for low to high viscosity fluids.

Theory of function

The preeflow eco-SPRAY guarantees a volumetric spray application based on the endless piston principle. The base of this new microspraying technology is still our proven rotor/stator technology. Due to a defined rotary motion of the rotor the medium in the stator is volumetrically replaced and conveyance is created. Thus a determined amount of medium is process controlled and directed to the special low flow spray chamber.

The precise nebulization and spraying can take place continuously or punctually. The revolutionary combination of the endless piston principle and the low flow spraying chamber guarantees perfect spraying of low to highly viscous media with high edge definition and lowest possible overspray.

Datasheet eco-SPRAY

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preeflow® – microdispensing in perfection

More than 20 years of experience in fluid dispensing. This comprehensive know-how in dosing technology distinguishes ViscoTec. In 2008, this wealth of experience was expanded with the introduction of the preeflow brand. With success: For 10 years, preeflow has stood for precise and purely volumetric dispensing of liquids in small and very small quantities. All over the world, a wide variety of industries rely on preeflow products. Always in the sense of the claim: Smaller, more precise, more economical.