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Pipe Fittings: Valve, Ball valve, standard, β = 1
Pipe fittings loss coefficients — Darby 3K method K-factors for elbows, tees, valves, and other fittings
| fitting type | K1 (dimensionless) | K ref (dimensionless) | Kd (dimensionless) | Ki (dimensionless) | category | description |
|---|---|---|---|---|---|---|
| Valve, Ball valve, standard, β = 1 | 300 | 0.068329 | 3.5 | 0.017 | Valve | Darby 3K: K = 300.0/Re + 0.017*(1 + 3.5/D^0.3) |
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