Tools
Engineering tools that make the spec easier.
Quick calculators our team reaches for every day: valve sizing, line velocity, unit conversions. Free to use; when you're ready, we'll help turn the numbers into the right product.
Liquid valve Cv
Required flow coefficient for a liquid control valve
GPM
psi
…required Cv
Cv = Q √(SG/ΔP), for turbulent, non-choked liquid flow. For flashing, cavitating, or compressible service, confirm with the manufacturer's sizing.
Pipe velocity
Liquid velocity in a round pipe
GPM
in
…ft/s
v = 0.4085 × Q/d². (2.067 in = Sch 40 2″ ID.) Keep liquids ~3–10 ft/s to limit erosion and water hammer.
Pressure converter
Convert between common pressure units
Temperature converter
°F · °C · K
Flow converter
Volumetric flow units
Estimates for convenience: they don't replace manufacturer sizing software or a stamped design. Working a specific application? Talk to a Rust engineer.
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