Omega Coating Technology

Nordson Distribution


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A7A Color Change Valves


Nordson Model A7A color-change valves deliver fast and reliable color-change performance for improved productivity and maximum operating efficiency. They respond to pneumatic signals and feature a carbide ball and seat for positive shut-off and long service life when used in abrasive coating applications.



A7A valves can be used with custom-designed manifolds or are available in standard Nordson color-change manifold configurations for non-circulating systems.

  • Standard high-pressure valve to prevent material from entering the valve for contamination protection
  • Quick and simple retrofit provides fast color change and production efficiency
  • Air-actuated valves promote safe operation with no ignition risk
  • Modular stacking manifold allows for future expansion of additional colors