Nordson Iso-Flo

®

HDVoltage Block System

Advanced voltage-blocking technology for the electrostatic application of waterborne coatings

Nordson Watermark

®

Technology

Nordson Iso-Flo systems are built for the most demanding finishing requirements with high-capacity, field-repairable pumps that provide long life with minimal maintenance and an innovative arc-suppression feature that allows continuous coating without delay between cycles.And now, Nordson’s Smart Iso-Flo makes color changes fast andeasy too.

How the Iso-Flo HD system works

An Iso-Flo HD manual or automatic voltage block is installed near the spray booth, and is connected between the grounded paint-supply system and the spray devices. Coating is pumped from the paint-supply system to paint reservoirs inside the voltage blocks. Electrostatic isolation is maintained with a series of shuttle valves that alternately connect the reservoirs to the grounded paint supply and the spray devices. Standard Iso-Flo HD configurations are available for single-gun manual painting systems and single- and multiple-gun automatic painting systems. For many finishing operations, the most cost-effective way toreduce VOC emissions is to convert from solvent-based to waterborne coatings. But due to the higher electrical conductivity of waterborne coatings, it is necessary to isolate the charged paint-supply system from any ground source. These isolated systems are difficult to maintain and potentially dangerous to plant personnel.The Nordson Iso-Flo HD voltage block offers an easier, safer and far more cost-effective way to spray electrostatically charged waterborne coatings. The system supplies charged coating to the spray devices while preventing the charge from conducting back through the paint-supply system.

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