preeflow service - frequently asked questions

How does the endless piston principle work?

The preeflow® eco-PEN series is part of the rotating displacement pumps. The theory of function is comparable to an endless piston, which conveys the product from the suction end to the discharge end, thus building up a pressure difference.

Further information

How can I get fast assistance if I have questions?

What kind of media can be dosed with the eco-PEN series?

1-component and 2-component epoxy, UV & light curing, anaerobic, toluene, sealing agents, heat curing, gasoline, high fill fluids, shear-sensitive adhesives, LED resins, flavours, thermal conductive paste, solder paste, RTV rubbers, silver paste, flux, industrial oils, perfume, cosmetics & medicines, biotechnical suspensions, silicones, grease, alcohol, MEK, thermal grease, PU, brazing paste, paints & inks, primer, acetone, epoxy resin, electrolytic solutions, isopropanol and many more

What can be the reason for too little or no flow of medium?

Potential cause: Motor (dispenser cable) is not connected

Correction: Connect motor to eco-CONTROL unit Check all connections!

Potential cause: Dosing needle is blocked, dosing needle is bent

Correction: Clean and/or replace the dosing needle

Potential cause: Material has hardened / cured

Correction: Clean the dispenser

Potential cause: The dosing needle is too small or too long

Correction: Use a different dosing needle cross-section, reduce Dosing speed / flow rate

Potential cause: Insufficient supply of medium

Correction: Increase the supply pressure. Check for air-bubbles. Check the hose line.

Potential cause: Stator is swollen