62 www.nordsonefd.com info@nordsonefd.com USA & Canada 800-556-3484 Europe 00800 7001 7001 Asia +86 (21) 3866 9006 Needle Valves xQR41 Series MicroDot Valve xQR41 with BackPack Includes fluid inlet fittings #7020671 and #7361411. 7360817 Includes adjustable stroke control. 7361761 Includes adjustable stroke control and PEEK wetted parts. 7360821 Includes adjustable stroke control and bullet-end needle. xQR41 with Mounting Block Includes fluid inlet fittings #7020671 and #7361411. 7360824 Includes adjustable stroke control. 7361763 Includes adjustable stroke control and PEEK wetted parts. Features and Benefits • 60% smaller form factor • QR (Quick Release) clasp for fast, easy serviceability • Exchangeable, modular design • Consistent microdots as small as 150 µm (0.15 mm) (0.006") diameter • Optional PEEK wetted parts resist curing from reactive adhesives The xQR41 Series MicroDot™ valve is a pneumatically operated, adjustable, modular valve designed to apply precise micro-deposits of low- to high-viscosity fluids. Ideal for automated assembly processes that require small dispensing tips, the xQR41 valve provides exceptional control as well as the absolute minimum dead fluid volume. Its modular design makes it adaptable to a variety of specific applications. Closed Open *Conditional use with PEEK wetted parts See Valve Controllers for system setup. For use with • Anaerobics* • Cyanoacrylates* • Epoxies • Fluxes • Lubricants • Primers • Silicone Oils • Solvents • UV-cure & Light-cure Adhesives Specifications Size: 66.0l x 23.7dia mm (2.60l x 0.93dia") Weight: 141.4 g (5.0 oz) Actuating air pressure required: 4.8–6.2 bar (70–90 psi) Maximum fluid pressure: 7.0 bar (100 psi) Fluid inlet: M5 Fluid outlet: Luer taper with retaining nut Mounting: M4 (BackPack actuator or Mounting Block) Cycle rate: Exceeds 400 per minute Air cylinder body: 303 stainless steel Fluid body: 303 stainless steel or PEEK* Piston: 303 stainless steel Needle and nozzle: 303 stainless steel or PEEK Tip retaining nut: Hard-coated aluminum SafetyLok collar: Hard-coated anodized aluminum Maximum operating temperature: 80 °C (176 °F) Warranty: 1 year, limited All stainless steel parts are passivated. *Polyetheretherketone www.nordsonefd.com/xQR41Series
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