How do you convert pressure or flow?
Simple unit conversion does not change reference conditions. Volume conversion between pressures and temperatures is a separate mode.
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Example data – these are not your operating figures. Adjust them before calculating.
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How we calculate
Method: 1 psi = 6894.757293168 Pa; 1 ft³ = 0.028316846592 m³. Dry ideal gas Q₂ = Q₁ × p₁/p₂ × T₂/T₁. Temperatures in kelvin, absolute pressures.
Assumptions and limitations: Simple conversion does not change bar(g) into bar(a). For Nm³ and standard volumes, confirm the contractual reference; the name alone does not define the conditions. For FAD, use actual reference intake conditions and data according to ISO 1217. This covers only dry gas with unchanged composition, not a full correction of wet FAD.
Method references- ISO 1217:2009 + Amd 1:2016: acceptance tests for displacement compressors, delivery and power consumption.
- CAGI Compressed Air & Gas Handbook, chapter 4, 2021 – system design, storage and pressure losses.
Method version 1.0. Standard references verified in the ISO catalogue; the physical balances are not calculations prescribed by ISO. Before final design, we will verify actual operating and catalogue data.