Enter flow, pressure and pipe run to see the pressure drop at each size, what it costs in compressor energy and which size pays back.
Pre-sizing and estimating tool: results do not replace design, calculations or reports signed by a licensed professional, nor verification against the applicable codes and standards.
Green bars meet the allowed drop and the maximum velocity.
Pressure drop grows with the square of flow: a network at its limit today becomes expensive as the plant expands.
Cash flow of the improvement: investment in year 0 and annual savings escalated at the rate entered, discounted at the MARR.
The report gathers this page's inputs, results, equations, assumptions and references, with fields for project, engineer and revision. In the print dialog, choose Save as PDF.
Up to about 1.5 psi (0.1 bar) in the main header and 4 to 5 psi (0.3 bar) from compressor to point of use, including dryer and filters. More than that usually leads to raising compressor pressure, at 1% energy per 2 psi.
Main headers 20 to 30 ft/s; branches and drops up to 50 ft/s. High velocity increases pressure drop and carries condensate.
Yes. In a loop, air reaches each user from two directions, flow per section halves and the drop falls to roughly a quarter.
Important notice: Indus Metrics tools produce estimates and pre-sizing results from the data you enter and from published engineering methods. They do not replace design, calculations or reports signed by a licensed professional engineer (PE), nor verification against the applicable codes, standards and regulations, such as OSHA rules and the ASME codes. Material and fuel properties vary: check manufacturer data or your own process analyses before deciding. By using this site you agree to the Terms of Use.
© 2026 Indus Metrics. Found an error? Write to contato@seudominio.com.