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Pipe Fittings: Elbow, 45°, long radius, (r/D = 1.5)
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 |
|---|---|---|---|---|---|---|
| Elbow, 45°, long radius, (r/D = 1.5) | 500 | 0.225948 | 4 | 0.052 | Elbow | Darby 3K: K = 500.0/Re + 0.052*(1 + 4.0/D^0.3) |
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