Join our mailing list!

Knowledge Base:  
You are here: Knowledge Base > Information Guides
Piston Comparison for 700 Series Dispensing Syringes
Last Updated: 03/01/2012

Pressure inside the dispensing syringe is evenly spread across the fluid surface by the piston that provides consistent dispensing performance. Double wiper seal pistons prevent dripping and eliminate material wastage in the dispensing syringes by wiping  the barrel wall clean, as fluid is deposited.

Using dispensing syringes without a piston inserted can result in unreliable dispensing deposits, as the supplied air pressure can become trapped inside the fluid, resulting in void pockets throughout the dispensing syringes. In addition moisture, found in the air of dispensing syringes, can affect the properties of the fluid.

Adhesive Dispensing Ltd is pleased to demonstrate the advantage of each piston type for dispensing syringes:

- Easy Flow Blue Piston - Low friction pistons are recommended for most general applications. They prevent air entrapment and eliminate material waste by wiping the barrel wall clean of the dispensing syringes. Use with anaerobic, epoxy, flux, SMA, oil, silicon, UV, etc.

- White Wiper Piston - The tighter fit wiper pistons are recommended for use with dispensing syringes, such as a manual syringe gun, to prevent leakage past the double wiping edges. For any fluid used on mechanical rod/guns including UV, etc.

- Red Flat Wall Piston - Straight wall pistons are recommended with dispensing syringes for reduced stringing and "bouncing" when dispensing high viscosity fluids. SMA, Solder paste, viscous greases, contact adhesives, etc.

Was this article helpful?


Related Articles
 > How to attach the adapter assembly hose to the syringe barrel
 > How to connect dispenser to external source using I/O Configuration
 > Watery liquid drips from either TS250, TS255, TS350, TS355 syringe dispensers
 > Thick paste, gels, silicones, sealants, epoxies, etc not flowing or restricted when dispensing
 > Time pressure dispensing tutorial
 > Filling techniques for syringe barrels
 > Advice for dispensing different fluid types
 > Advice for dispensing sealants, grease and solder pastes
 > Smooth flow tapered tips
 > Bench-top fluid dispensing: Easy when you know how
 > Dispensing System: Reducing maintenance requirements in dispensing applications
 > Rotary Auger Valves � Pros and Cons
 > Dispensing Adhesives Material Can Be Challenging
 > Improving the Grease Dispensing Process
 > Benchtop epoxy dispensing small shot
 > The Negative Effects of Reusing Syringes and Accessories
 > Fluid Viscosity Chart Table
 > Dispense valve material selection guide
 > TS5600 series diaphragm valves specifications
 > TS5420 needle valve specifications
 > TS5520 spray valve specifications
 > TS1212 pinch tube valve specifications
 > TS1201 pinch tube pen valve specifications
 > Fluid dot anatomy volume compared to deposit diameter
 > General advice for handling Cyanoacrylates in bottles
 > Avoid needle tips clogging using Cyanoacrylate adhesives
 > Basic TS250/ TS255 bench dispensers manual applications
 > Reason to use a brush tip with a timed pulse dispenser
 > If you use Cyanoacrylates...
 > Some typical dispensing applications
 > Reducing Hand Fatigue and Variability in Medical Device Assembly Processes
 > General advice for handling Cyanoacrylates adhesives
 > Viscosity of Fluids to Compare With
 > Dispenser spares & accessories
 > Spray Valve Coverage Chart
 > Techcon cartridge gun spares & accessories
 > Techcon spool valve spares & accessories
 > Techcon spray valve spares & accessories
 > Techcon needle valve spares & accessories
 > Fisnar peristaltic pump spares & accessories
 > Dispensing tip gauge size chart
 > Benchtop dispensing robots
 > Dilatent Definition
 > Conformal Coating Product Description - a brief guide
 > Potting Encapsulating Product Description - a brief guide
 > Sealants Product Description - a brief guide
 > Adhesive Technical Information Chart
 > Adhesive Dispensing Valve Selection Guide
 > Chemistry Technical Information
 > Volume, Weight and Length Conversions
 > Temperature Conversions
 > Durometer Conversions
 > Fluid Coverage Information
 > Adhesive Dispensing Luer Lock & Luer Slip Tip Attachment
 > Accelerator Definition
 > Activator Definition
 > Acrylic Definition
 > Alloy Definition
 > Anaerobic Definition
 > Aqueous Definition
 > Balling Definition
 > Braze Paste Definition
 > Caulk Definition
 > Centipoise Definition
 > Conductive Epoxy Definition
 > Cyanoacrylate Definition
 > Epoxy Definition
 > Hot Melt Definition
 > Polyurethane Definition
 > Silicone Definition