Riverdale Global will demonstrate its new gravimetric stand for the supply, dosing and replenishment of liquid color at NPE 2015.
Riverdale equipment will be shown at Booth 19189 and at Maguire Products Inc., Booth 5663
“Gravimetric metering holds color-delivery tolerance to within 0.1 percent, preventing over-coloring and making it possible to reduce costs while maintaining target color levels,” said Riverdale President Paul Maguire. “Often, it is possible to reduce color usage by 5 to 10 percent in comparison with properly calibrated volumetric metering systems.
Riverdale is based in Perth Amboy, N.J.
A drum of liquid color is mounted on a self-calibrating, loss-in-weight scale that continually measures the weight of the contents to the controller. That ensures the target let-down ratio is maintained. Flow is modulated through an air-regulated actuator that is connected to the liquid color pump, which is located inside the sealed drum — following Riverdale's “pump in a drum” design.
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