DN15- DN300 Sonic nozzle calibration systems

Sonic nozzle calibration systems serve as primary standards for gas flow measurement verification.

These precision devices utilize critical flow Venturi nozzles that achieve choked (sonic) flow conditions,

creating predictable mass flow rates independent of downstream pressure variations. The DN50-DN300 systems typically feature:
• NIST-traceable calibration with ≤0.2% uncertainty
• Automated pressure/temperature compensation
• Flow range coverage from 5-5000 m³/h
• Stainless steel construction for corrosive media