E Catalogue

35 DIAPHRAGM VALVES Mini-diaphragm Valve 702 Series 60% smaller and 70% lighter than typical dispense valves, the 702 Series is ideal for applications where space is tight, or installation on movable arms where size and weight must be considered. The 702M-SS applies consistent, precise deposits of dye, UV-cure lacquers and UV-cure adhesives in the optical media industry. The 702V is designed for drip-free coating and consistent shot-to-shot bonding of UV-cure adhesives and other low-to-medium viscosity fluids. Features and Benefits • Unique design eliminates trapped air and bubbles • Tamper-resist stroke adjustments • Quick, clean cutoff eliminates drips • Faster throughput Specifications Size: 63.5 mm length x 19.1 mm diameter (2.50" x 0.75") Weight (less fittings): 49.3 g (1.74 oz) Actuating air pressure required: 70-90 psi (4.8-6.2 bar) Maximum fluid pressure: 70 psi (4.8 bar) Fluid inlet thread: M5 x 0.8 Mounting: Adjustable mounting block (#7020507) Cycle rate: Exceeds 500 per minute Air cylinder body: 303 stainless steel Fluid body: 303 stainless steel Piston: 303 stainless steel Diaphragm: FDA approved UHMW* polyethylene or PTFE. Consult Nordson EFD for part number. Tip retaining nut: Aluminum All stainless steel parts are passivated. *Ultra High Molecular Weight polyethylene For use with: UV-cure Adhesives UV-cure Lacquers Resins UV-cure Coatings Solvents Dyes 7020679 (702M-SS Valve) For optical media applications. Air cylinder body and fluid body are made of passivated 303 stainless steel. UHMW diaphragm. Includes sample tip kit of PTFE- coated tips, (4) each of 21 and 23 gauge. 7020683 (702V-SS Valve) For general industry applications. Air cylinder body and fluid body are made of passivated 303 stainless steel. UHMW diaphragm. Includes 1.5 m (5 ft) input air hose with male quick-connect and fluid inlet fitting, #7020671. 7020680 (702V-A Valve) For dispensing UV cure, anaerobics, and certain cyanoacrylates. Fluid body is acetal copolymer with a 303 stainless steel air cylinder body. UHMW diaphragm. Acetal copolymer wetted parts are preferred when dispensing UV-cure adhesives, anaerobics, cyanoacrylates, and other fluids that might otherwise react when in contact with stainless steel. Includes 1.5 m (5 ft) input air hose with male quick-connect and fluid inlet fitting, #7020677. Air Cylinder Body Diaphragm Piston Spring Tamper-resist Stroke Adjustment Piston Fluid Inlet M5 x 0.8 Actuating Air Input Fluid Body Tip Retaining Nut The ValveMate 8000 controller makes the 702 Series Valve setup fast and easy. See page 52. www.nordsonefd.com info@nordsonefd.com USA & Canada 800-556-3484 Europe +44 (0) 1582 666334 Asia +86 (21) 3866 9006