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Pipe Fittings: Valve, Angle valve, 90°, full line size, 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, Angle valve, 90°, full line size, β = 1 | 1,000 | 2.941817 | 4 | 0.69 | Valve | Darby 3K: K = 1000.0/Re + 0.69*(1 + 4.0/D^0.3) |
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