Precision valve system for consistent microdot application
The MicroDot valve system incorporates a pneumatically operated adjustable needle valve designed to apply very precise deposits down to fractions of a microliter.
This system is ideal for automated assembly processes that require small dispensing tips ranging in size from 22 to 33 gauge. The 741MD-SS-BP valve has an adjustable needle stroke with a unique calibration feature that allows the user to maintain exact deposit size.
The BackPack Valve Actuator mounted on the actuating air cylinder maintains constant pressure at the actuating air inlet, for faster response time without the risk of process variations due to a fluctuating plant air supply or different air line lengths. In addition, the BackPack utilizes advanced miniature solenoid technology that makes it possible to achieve valve actuation speeds as short as 5-6 milliseconds, and cycle rates that exceed 60 – 80 Hz.
• Consistent microdots as small as 0.18 mm (0.007″)
• Unaffected by entrapped air in fluid
• Easy calibration; short setup time
• Drip-free shutoff
• Cycle rate exceeds 800/minute
• Zero dead fluid volume
• Low-maintenance design