124 www.nordsonefd.com info@nordsonefd.com USA & Canada 800-556-3484 Europe 00800 7001 7001 Asia +86 (21) 3866 9006 The AF™ Air Free Piston does a superior job of venting all of the air between the material and the piston. Its unique design does not require a shim to bleed the air, nor does it require a second step to insert a center bleed plug. This piston bleeds air around the circumference of the black plug and uses the force of hitting the material to close itself in a single step. The AF piston provides a more visible indication when the piston is completely closed, i.e., the black center plug is flush with the top of the piston. Further, since the material of construction of the AF piston is a PE/PBT combo, it is compatible with most materials, simplifying inventory. Features and Benefits • Eliminates trapped air • No need for shims or secondary plugging operations • Ensures on-ratio dispensing • Fast, foolproof operation • Prevents material separation AF AIR FREE PISTONS Part # Ratio Cartridge Type 7704061 1:1 50mL Side x Side 7704307 1:1 200−300mL Side x Side For other pistons, see cartridge P/N tables. AF Air Free Pistons • Solid Multi-seal • Solid with O-ring • Multi-seal with a Pre-staged Center Bleed Plug • For use with Side x Side cartridges; see previous pages for part numbers • Both u-TAH and Coaxial cartridges come pre-installed with solid multiseal pistons Piston Adhesive Air Cartridge Opened Piston Piston Seal Adhesive Closed Piston Cartridge Other 2K Pistons Bleed Path 2K Pistons www.nordsonefd.com/AFpistons
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