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Valve Dispenses Tiny Amounts Of Adhesive Very Accurately

01 April 2001

EFD's pneumatically operated 740MD-SS MicroDot needle valve can apply
extremely small amounts of adhesives and other fluids in precision
assembly processes requiring very high accuracies. The needle is seated
in the hub of the dispensing tip, rather than the valve body, which
minimises the amount of dead fluid volume between valve seat and
substrate. The benefits are shortened set-up time and a clean, drip-free
cut-off from tips with internal diameters as small as 0.004in.

The associated controller, ValveMate 7000, allows valve open time to be
adjusted in 0.1, 0.01 or 0.001 second increments at the dispensing
station, without having to re-programme a PLC or interrupt production.

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