The MV-0180-PNM needle valve has been designed with a low-density plastic wetted chamber so the anaerobic resin does not come into contact with the metal body of the valve. Material is fed under pressure to the valve directly from its packaged container. The container bottle can be placed in an air pressure reservoir, top ported to the valve. An air pulse is delivered from the company’s valve controller, which actuates a solenoid attached to the needle seal, allowing the fluid to flow. When the air pulse is removed, a forward-action spring returns the needle and closes the seal, shutting off the fluid. For faster and more-precise closure, a four-way air control can be connected to eliminate the reliance on spring pressure. The needle valve includes a stroke adjuster for final tuning of shot size and is said to be an excellent high-duty valve for precise deposits of anaerobic fluids.
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