VCA Velcon Contaminant Analyzer

The VCA® uses laser sensing technology to ensure that the fuel loaded onto commercial airliners is clean and dry. 

In the event of wet or dirty fuel (or both), the system can act as a final state quality check downstream of last filtration and shut down the fueling operation and alert the user with minimal amount of contaminated fuel reaching the plane.

As a “full–flow” analyzer, the VCA mounts within a fuel delivery system thereby providing a true representation of the pipeline contents. 

Other technologies rely on sampling only a small amount of fuel drawn from the main pipeline—a process often completed at very low flow rates, referred to as side-sampling. 

The VCA analyzes fuel at flow rates higher than 1000 gallons per minute through a 4-inch pipeline. Side-sampling has substantial difficulty in accurately representing contamination in high fuel-flow applications.

Particle counters fail to differentiate with precision between water and solid contaminants thereby producing erroneous results. 

The VCA uses two separate sensor technologies to consistently differentiate between water and solid contaminants.

The VCA analyzes the contents of flowing fuel in a pipeline approximately 600 times a second, and outputs an averaged result every two seconds in mg/l and ppm.

The VCA is an ideal tool to either measure the quality of fuel at receipt, assuring agreed upon cleanliness specification are met. 

The VCA provides data to reassure the user that fuel cleanliness is within limits and where not, may be set to alarm or signal a system shut down.