Optimum Syringe Barrel Pistons
Optimum® SmoothFlow™ pistons feature unique channels that prevent air entrapment while providing a smooth profile radius to reduce fluid shear.
Overview
Our pistons fit perfectly inside Optimum syringe barrels to ensure uniform dispensing force to provide accurate, consistent fluid deposits and prevent dripping and oozing between shots.
Precision wiping edges clean the syringe interior as fluid is filled into or dispensed from the barrel, eliminating waste, residue, and air entrapment.
Optimum syringe barrel pistons are manufactured in EFD’s own certified silicone-free facilities in the United States and are certified for industrial use.
How to Select the Right Piston
Learn about six unique syringe barrel pistons to discover which will produce the most consistent fluid dispensing results for your application.
For more videos about EFD, visit our video gallery.
Types of EFD Pistons
Standard Pistons
Precision molded from high-density polyethylene* in six unique styles, Optimum pistons ensure precise control for virtually any fluid in any application, including:
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.
* Clear Flex pistons are molded from low-density polyethylene
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Specialty Pistons
In addition to our standard offering, Nordson EFD offers the following specialty pistons.
Optimum ECO
Eco-friendly pistons for use exclusively with Optimum ECO syringe barrels. They feature sustainably-sourced polyethylene to help reduce the carbon footprint.
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Better Quality
Nordson EFD adheres to highly controlled manufacturing procedures, maintenance schedules, and quality specifications in the production of Optimum components.
Our dispensing components are stored in anti-static bags to protect against contamination. Package labels include lot numbers for complete process control and traceability.
Part Numbers
| Optimum Syringe Barrel Pistons | |||||||
| Size | White SmoothFlow | Beige SmoothFlow | Red SmoothFlow | Orange Flatwall | Blue LV Barrier | Clear Flex | Qty |
| 3cc | 7366134 | 7366126 | 7366133 | 7366132 | 7366128 | 7366131 | 100 |
| 5cc | 7366141 | 7366135 | 7366140 | 7366139 | - | 7366138 | 100 |
| 10cc | 7366125 | 7366117 | 7366124 | 7366123 | 7366119 | 7366122 | 100 |
| 30/55/70cc | 7366084 | 7366076 | 7366083 | 7366082 | 7366078 | 7366081 | 50 |
Questions about fluid dispensing?
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Contact us to get answers about your dispensing process or application challenges.
Resources & Downloads
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Data Sheets & Guides
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Videos
Flex Piston Minimizes Piston Bounce, Improves Deposit Control
Nordson EFD Clear Flex piston minimizes air blow-by and entrapment. Innovative design "flexes" with each deposit pulse for improved dispensing accuracy and repeatability.
Pistons #1 - How Pistons Improve Your Dispensing Process
Find out what a syringe barrel piston is and why you need one to improve your industrial fluid dispensing process.
Better Fluid Dispensing Blog
Our blog posts are here to help you learn more about the endless opportunities provided by innovative fluid dispensing systems. Discover new equipment, applications, and best practices for using fluid dispensers, to help improve your manufacturing processes.
How to Select the Right Piston for Your Fluid
Jun 28, 2019Choosing the right piston can improve your process. Learn more.
Read More How to Select the Right Piston for Your FluidHow to Set Up Blue LV Barrier Pistons for Cyanoacrylates and Watery Fluids
Sep 25, 2019Discover how blue pistons work and about proper setup for exceptional results.
Read More How to Set Up Blue LV Barrier Pistons for Cyanoacrylates and Watery FluidsHow to Prevent Air Bubbles from Causing Piston Bounce
Dec 10, 2019Learn how to prevent piston bounce with helpful tips.
Read More How to Prevent Air Bubbles from Causing Piston BounceHow Dispensing Components Work Together to Reduce Costs
Jun 10, 2020Fluid dispensing 101: The benefits of an integrated system.
Read More How Dispensing Components Work Together to Reduce CostsFluid Dispensing 101: Syringe Barrel Selection
Feb 25, 2020Learn about more than five types of syringe barrels and their uses.
Read More Fluid Dispensing 101: Syringe Barrel Selection
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