Syringe Barrel Filling
Remember
For best results, EFD strongly recommends the use of a piston as part of your
dispensing system.
When changing tips
or attaching a tip cap,
snap the safety clip
completely closed to
prevent any dripping
or bubbling.
Open
Closed
If you choose to not use a piston when dispensing thin fluids, remember these
important points.
Fumes cannot
escape.
No air gap
when using the
SmoothFlow piston.
SmoothFlow
piston prevents
fluid backflow.
Do not tip the barrel
upside down or lay
flat. This will cause
the liquid to run into
the dispenser.
Selecting a Piston
Choose the best piston for your material. Precision molded in six unique styles,
Optimum
®
pistons ensure precise control for virtually any fluid in any application:
• White SmoothFlow (general purpose): For use with most fluids.
• Red SmoothFlow (tight fit): For use with mechanical dispensing equipment.
• Beige SmoothFlow (loose fit): Loose-fitting pistons are used with air-
entrapped fluids.
• Orange flatwall: Flat-walled pistons have a looser fit to prevent “bouncing”
when dispensing stringy, air-entrapped fluids.
• Blue LV Barrier: LV Barrier pistons are used with cyanoacrylates and very
low viscosity fluids.
• Clear Flex: Flex pistons are flexible and reduce “bouncing” in viscous fluids
while maintaining excellent wall wiping.
Selecting an Adapter Assembly
For the best dispenser performance, Nordson EFD offers the Quicksilver adapter
assembly. This adapter assembly provides the following advantages over the
standard adapter assembly:
• Maximum air flow to the material for faster cycle speeds and minimal full-to-
empty variation
• Larger air tubing and adapter orifice for a faster fill of air into the syringe barrel
and faster evacuation of air pressure (back pressure) to prepare for the next
dispense cycle, both ideal for high cycle automated dispensing
• Works for all fluids, but is especially effective for thin fluids to eliminate
dripping
UltimusPlus Series Dispensers
44 www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide.
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