64 www.nordsonefd.com info@nordsonefd.com USA & Canada 800-556-3484 Europe 00800 7001 7001 Asia +86 (21) 3866 9006 Stroke Control Stroke Reference Piston Spring Air Cylinder Body Packing Spring Needle Packings Fluid Body Fluid Inlet 1/8 NPT SafetyLok Collar Piston and Needle Mounting Hole 1/4-28 UNF Needle Seat Disposable Dispensing Tip Tip Adapter Stroke Calibration Actuating Air Input 10-32 UNF 741MD-SS Series MicroDot Valve 7021233 741MD-SS Valve Fluid body is passivated 303 stainless steel. Air cylinder body is hard-coated anodized aluminum. Includes fluid inlet fitting #7021499. 7015585 741MD-SS-BP Valve Fluid body is passivated 303 stainless steel. Air cylinder body is hard-coated anodized aluminum. Includes fluid inlet fitting #7021499 and BackPack valve actuator. Features and Benefits • Zero dead fluid volume • Easy calibration; short setup time • Consistent microdots as small as 0.18 mm (0.007") diameter • Unaffected by entrapped air in fluids The 741MD-SS MicroDot valve is a pneumatically operated adjustable needle valve designed to apply very precise deposits down to fractions of a microliter. Ideal for automated assembly processes, the 741MD-SS valve has an adjustable needle stroke with a unique calibration feature that allows the user to maintain exact deposit size. For use with • Epoxies • Lubricants • Marking Inks • Solvents • UV-cure & Light-cure Adhesives Needle Valves Order Valve Replacement Parts: www.nordsonefd.com/ValveKits See ValveMate Controllers for system setup. Specifications Size: 127.5l x 26.9dia mm (5.02l x 1.06dia") Weight: 251.0 g (9.0 oz) Actuating air pressure required: 4.8–6.2 bar (70–90 psi) Maximum fluid pressure: 7.0 bar (100 psi) Fluid inlet: 1/8 NPT female Fluid outlet: Luer taper with retaining nut Mounting: 1/4-28 UNF tapped hole Cycle rate: Exceeds 400 per minute Air cylinder body: Hard-coated anodized aluminum Fluid body: 303 stainless steel Piston: 303 stainless steel Needle and nozzle: 303 stainless steel Tip adapter: 303 stainless steel SafetyLok collar: Hard-coated anodized aluminum Maximum operating temperature: 43 °C (110 °F) Warranty: 1 year, limited All stainless steel parts are passivated. www.nordsonefd.com/741MDSeries
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