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EVAPCO Pass-Protect Passivation Solution

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Система пассивации EVAPCO Pass-Protect

EVAPCO Pass-Protect Passivation Solution

Two-step passivation system for galvanized heat exchangers that minimizes white-rust formation.

Rating: 5.0 / 5

EVAPCO Pass-Protect® is a complete solution for accelerated passivation of galvanized coils in evaporative condensers and closed-circuit coolers. It is particularly suited to new equipment that must be placed under immediate heat load, where natural formation of a protective oxide layer may be difficult.

The process combines factory-applied Passiv-Assist® pretreatment with site-specific field passivation based on makeup-water quality. Factory pretreatment reduces the risk of white rust, while the field program uses inhibitor chemistry, feed equipment and controls to establish a durable passive layer. The typical field stage lasts approximately four to eight weeks.

  • Accelerates formation of the protective passive layer.
  • Reduces the potential for white-rust formation.
  • Suitable for equipment under immediate heat load.
  • Program tailored to site-specific water quality.
  • Reduces the need for continuous white-rust inhibitor feed.
  • Support through EVAPCO authorized partners.
  • Two-step passivation process.
  • Factory-applied Passiv-Assist® pretreatment.
  • Field passivation with inhibitor chemistry.
  • Typical duration of four to eight weeks.
  • For galvanized coils and construction.
  • Compatible with Pulse~Pure® and Smart Shield®.

Applications:

Industry and manufacturingData centersBusiness and shopping centersResidential complexes

Documentation:

Global Product Catalog Pass-Protect Flyer Pass-Protect Passivation Solution Brochure Industrial Refrigeration Supplier Brochure
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Two-step passivation system for galvanized heat exchangers that minimizes white-rust formation.

Technical specifications

Solution type Galvanized-equipment passivation system
Treatment stages Factory and field passivation
Factory treatment Passiv-Assist®
Typical duration 4–8 weeks
Application White-rust mitigation

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