Information

About the Application

IEC-60534-8-3 Noise Wizard is a professional web application for calculating noise curves of pressure regulators according to IEC standards.

Operating Modes

• Find Regulator: Retrofit and validation of noise curves for already installed regulators (validation)
• Buy Regulator: Automatic selection of the five best-matching regulators (recommendation)

Features

• IEC-compliant noise calculation with physically consistent curves
• Support for multiple gas types
• Detailed regulator specifications
• Noise calculation according to the standard, with and without silencer
• Warnings in Find Regulator mode indicate:
  • operation outside the recommended operating range
  • results are still calculated but not recommended for use

Database

• Gases: Natural Gas, Air, Hydrogen (100 %), Nitrogen, Butane, Propane, Propane-air mix*
• Regulator-specific coefficients and parameters

Calculation Method

The noise calculation is performed according to IEC standards and considers:

• Gas-dependent correction factors
• Ideal gas behavior
• Pressure difference and flow rate
• Valve and regulator coefficients (e.g. FL, DN)
• Turbulence effects depending on the flow regime

Curve Types

• IEC Curve: Theoretical noise calculation according to the IEC standard

Disclaimer

The calculated noise levels represent idealized conditions. In practical installations, deviations of up to ±5 dB(A) may occur.

Note

All noise levels are given in dB(A).

Noise levels are calculated according to IEC 60534-8-3 and refer to a reference distance of 1 m from the regulator center.

For increased distance, the sound pressure level is expected to decrease by approximately 3 dB(A) per meter, assuming free-field conditions.