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Leak/flow calibration
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Virtual Leak Diameter (VLD) Flow Standards

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The VLD Formula
VLD Component Parts
Typical applications:
Calibration: Leak & Flow testing instruments (Quality standards) including FORD ES YU5A-9000-AC

Flow nozzles: Printing etc.

Flow & Pressure regulation:
Industry, laboratories.

Seal integrity testing: Packaging, Medical, Food, Electronics. Pharmaceutical. IP (Ingress Protection) EN 60 529/IEC 529.

Porosity: Analysis of materials & performance.

Replaces: Sinters, restrictors, needle valves, and nozzle jets.

Overview:
The global acceptance of ISO 9000 and Six Sigma quality standards has raised a demand for predictable and traceable measurement, calculated from gas laws and physics. Leak/Flow acceptance standards are increasingly specified as maximum VLD's.

Calculation logic:
As VLDs are defined by a single orifice diameter this can be used to approximate flow rates.

High pressure and high vacuum applications fall outside this standard and require additional formulation, contact us for your calculation. Leak/Flow testing instruments (Quality standards).