Engineering Tools

These calculators implement documented equations from IEC 60534 and ISA-75 with clearly stated assumptions and unit conventions. Each tool shows the formula it uses, the applicable range, and the limits — results are indicative and must be verified against the full standard method and manufacturer data for final sizing.

Status: the first tools are in engineering review and will be published shortly.

Liquid Cv Sizing Coming soon

Cv from flow, differential pressure and specific gravity, with choked-flow and cavitation checks.

Gas & Steam Cv Sizing Coming soon

Expansion-factor method for compressible flow per IEC 60534-2-1.

Cv / Kv Converter Coming soon

Two-way conversion between US Cv and metric Kv conventions.

Actuator Force Sizing Coming soon

Piston cylinder area, air supply pressure and required shutoff force margin.

Cavitation Margin Check Coming soon

ΔPs margin against vapor pressure using the liquid pressure-drop ratio method.

Noise Estimation Coming soon

Approximate aerodynamic noise per IEC 60534-8-3 simplified method.

Tool disclaimer. Calculator results are engineering estimates for education and preliminary selection. They do not replace full standard calculations, manufacturer sizing software, or engineering judgment for the actual installation.