E Catalogue

75 PICO DISPENSING SYSTEMS Needle Valves (for Contact Dispensing) PICO needle dispensing systems provide exceptional deposit accuracy and process control for a wide range of fluids. Fast-acting piezoelectric actuators make it possible to apply extremely small dots and well-defined lines with precise control of the beginning and end points. An adapter attached to the nozzle plate allows the use of precision dispensing needles. Slider Valves (for Solder Paste and Highly Filled Adhesives) Slider valves are designed for needle dispensing of particle-filled fluids and incorporate two sliding ceramic plates, each with a small opening in its center. The fluid feed tube is attached to the upper plate, and the dispensing nozzle is attached to the lower plate. In the closed position, the ceramic plates are offset so that the openings are not aligned. When the piezoelectric actuators are energized, the upper plate slides over the lower plate until both openings are aligned so that fluid can flow to the needle. For use with: Oils Greases Varnishes Hydrous Solutions Organic Solvents Liquid Polymers Polymeric Solutions www.nordsonefd.com info@nordsonefd.com USA & Canada 800-556-3484 Europe +44 (0) 1582 666334 Asia +86 (21) 3866 9006 Needle Valve Viscosity range of 50—200,000 mPa • s (thixotropic). Includes luer lock needle adapter. Performs contact dispensing through a dispense needle. Slider Valve Viscosity range > 10,000 mPa • s (thixotropic). Includes SMN (surface mount needles) only. Performs contact dispensing through a dispense needle. For use with: Particle-filled fluids Solder paste Highly filled adhesives